2,205 results match your criteria Bioelectrochemistry Amsterdam Netherlands[Journal]


Sandwich-type electrochemical immunosensor based on Au@Pt DNRs/NH-MoSe NSs nanocomposite as signal amplifiers for the sensitive detection of alpha-fetoprotein.

Bioelectrochemistry 2019 Apr 2;128:140-147. Epub 2019 Apr 2.

Analysis and Testing Center, Shandong University of Technology, Zibo 255049, PR China. Electronic address:

A sandwich-type electrochemical immunosensor was fabricated for the quantitation of alpha fetoprotein (AFP). To this end, the Au@Pt dendritic nanorods loaded with amino functionalized molybdenum selenide nanosheets (Au@Pt 41 DNRs/NH2-MoSe2 NSs) with enhanced peroxidase-like properties were selected as the secondary antibody label (Ab2) to achieve signal amplification. The as-obtained Au@Pt DNRs/NH2-MoSe2 NSs exhibited better catalytic activity toward hydrogen peroxide reduction and offered rich anchors for bioconjugation. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.012DOI Listing
April 2019
1 Read

Effect of starch on the corrosion behavior of Al-Mg-Si alloy processed by micro arc oxidation from an ecofriendly electrolyte system.

Bioelectrochemistry 2019 Apr 10;128:133-139. Epub 2019 Apr 10.

School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea. Electronic address:

In addition to being environmentally friendly and ecologically acceptable, starch-based materials are inexpensive, readily available and renewable. The capability of starch, therefore, to inhibit the corrosion of Al-Mg-Si alloy processed via micro arc oxidation (MAO) process was investigated. For this aim, MAO coating was carried out on the present sample under AC conditions in an alkaline electrolyte with and without starch. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.04.004DOI Listing

Electrochemical detection of DNA hybridization based on three-dimensional ZnO nanowires/graphite hybrid microfiber structure.

Bioelectrochemistry 2019 Apr 6;128:126-132. Epub 2019 Apr 6.

Institute for Advanced Interdisciplinary Research (iAIR), University of Jinan, Jinan 250022, China. Electronic address:

In the present work, zinc oxide (ZnO) nanowire (NWs)/graphite microfiber hybrid electrodes were used for the detection of DNA hybridization. ZnO NWs were in-situ synthesized onto graphite fibers using the hydrothermal technique, and the result was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) as well as transmission electron microscope (TEM). An electrochemical sensor for the analysis of DNA hybridization was developed based on immobilizing DNA probes onto the ZnO NWs/graphite microfiber electrodes surface via electrostatic interaction. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.04.003DOI Listing
April 2019
4.172 Impact Factor

Nitinol as a suitable anode material for electricity generation in microbial fuel cells.

Bioelectrochemistry 2019 Mar 25;128:118-125. Epub 2019 Mar 25.

Regional University Center of Interface, Sidi Mohamed Ben Abdellah University, B.P. 2626, Fez 30000, Morocco; Laboratory of Microbial Biotechnology, Faculty of Science and Technology, Sidi Mohamed Ben Abdellah University, B.P. 2202, Fez, Morocco.

Nitinols (Nickel-titanium alloys) have a good electrical conductivity and biocompatibility with human tissue and bacteria and, therefore, can be effectively used as an anode material in bioelectrochemical systems. This paper aimed to use nitinols (at different Ni/Ti ratios) as an anode material for microbial fuel cells (MFCs) in order to achieve higher power density. The maximum power densities of the MFCs using NiTi-1, NiTi-2, and NiTi-3 electrodes were 555 mW/m, 811 mW/m, and 652 mW/m, respectively. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.008DOI Listing

Effect of control mode on the sensitivity of a microbial fuel cell biosensor with Shewanella loihica PV-4 and the underlying bioelectrochemical mechanism.

Bioelectrochemistry 2019 Apr 2;128:109-117. Epub 2019 Apr 2.

Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China; Institute of Environmental Biology and Life Support Technology, School of Biological Science and Medical Engineering, Beihang University, Beijing 100191, China; International Joint Research Center of Aerospace Biotechnology & Medical Engineering, Beihang University, Beijing 100191, China. Electronic address:

A relatively poor sensitivity is a critical challenge for the application of microbial fuel cell biosensors (MFC-biosensors). This study investigated the effects of two control modes on sensor sensitivity and revealed the underlying bioelectrochemical mechanism. The results demonstrated that the sensitivity of an S. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.04.001DOI Listing
April 2019
2 Reads

Supercapacitor/biofuel cell hybrid device employing biomolecules for energy conversion and charge storage.

Bioelectrochemistry 2019 Mar 28;128:94-99. Epub 2019 Mar 28.

Department of Biochemistry and Structural Biology, Lund University, P.O. Box 124, SE-22100 Lund, Sweden. Electronic address:

We report on a hybrid bioelectrochemical system that integrates an energy converting part, viz. a glucose/oxygen enzymatic fuel cell, with a charge-storing component, in which the redox features of the immobilized redox protein cytochrome c (cyt c) were utilized. Bilirubin oxidase and pyrroloquinoline quinone-dependent glucose dehydrogenase (PQQ-GDH) were employed as the biocatalysts for dioxygen reduction and glucose oxidation, respectively. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.009DOI Listing
March 2019
1 Read
4.172 Impact Factor

Increased carbon dioxide reduction to acetate in a microbial electrosynthesis reactor with a reduced graphene oxide-coated copper foam composite cathode.

Bioelectrochemistry 2019 Apr 2;128:83-93. Epub 2019 Apr 2.

State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, PR China; School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, PR China; Novo Nordisk Foundation Center for Biosustainability, Technical University of Denmark, Kemitorvet-220, 2800 Lyngby, Denmark. Electronic address:

Microbial electrosynthesis is a bioprocess where microbes reduce CO into multicarbon chemicals with electrons derived from the cathode of a bioelectrochemical reactor. Developing a highly productive microbial electrosynthesis reactor requires excellent electrical connection between the electrochemical setup, the cathode, and the microbes. Copper is a highly conductive cathode material widely employed in electrochemical apparatuses. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.011DOI Listing

A highly selective amperometric biosensor array for the simultaneous determination of glutamate, glucose, choline, acetylcholine, lactate and pyruvate.

Bioelectrochemistry 2019 Mar 31;128:100-108. Epub 2019 Mar 31.

Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, NAS of Ukraine, 150 Zabolotnogo str., Kyiv 03148, Ukraine; Institute of High Technologies, Taras Shevchenko National University of Kyiv, 64, Volodymyrska Str., Kyiv 01003, Ukraine.

The work was aimed at the development of a biosensor array for the simultaneous determination of six solutes (glutamate, glucose, choline, acetylcholine, lactate, and pyruvate) in aqueous solutions. Enzymes selective for these substrates were immobilized on the surface of amperometric platinum disc electrodes and served as bioselective elements of a biosensor array. Direct enzymatic analysis by the developed biosensors provided high sensitivity to the tested substrates (limits of detection were 1-5 μM). Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.010DOI Listing
March 2019
1 Read

Graphene-ferrocene functionalized cyclodextrin composite with high electrochemical recognition capability for phenylalanine enantiomers.

Bioelectrochemistry 2019 Mar 26;128:74-82. Epub 2019 Mar 26.

Research Center of Gansu Military and Civilian Integration Advanced Structural Materials, Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.

Graphene oxide (GO) modified with ferrocene (Fc) was successfully assembled via the π-π interaction (GO-Fc) and had the features of large surface area and high loading. Then, a novel composite was synthesized via β-cyclodextrin (β-CD) functionalized GO-Fc by combining the advantages of GO-Fc and β-CD. An efficient chiral electrochemical sensing interface was constructed by using the rGO-Fc-CD composite as the electrode modification for the recognition of phenylalanine (Phe) enantiomers. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.006DOI Listing

A novel electrochemical biosensor based on TetX2 monooxygenase immobilized on a nano-porous glassy carbon electrode for tetracycline residue detection.

Bioelectrochemistry 2019 Mar 22;128:66-73. Epub 2019 Mar 22.

Research Center of Medical Science, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran.

Different carbon-based nanostructures were used to investigate direct electron transfer (DET) of TetX2 monooxygenase (TetX2), and an enzyme-based biosensor for sensitive determination of tetracycline (TC) also fabricated. A polyethyleneimine (PEI) with positive charge groups was used for immobilization of TetX2 on modified glassy carbon electrodes. Cyclic voltammetry (CV) was employed to study the electrochemical characteristics of the immobilized enzyme and the performance of the proposed biosensor. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.010DOI Listing

Towards a dual in-line electrochemical biosensor for the determination of glucose and hydrogen peroxide.

Bioelectrochemistry 2019 Mar 19;128:56-65. Epub 2019 Mar 19.

Old Dominion University, Frank Reidy Reseach Center for Bioelectrics, Department of Electrical and Computer Engineering, Virginia, USA. Electronic address:

Herein, we report the development of a sensitive and selective dual mode electrochemical platform for the detection of glucose and HO. The platform is based on tungsten and gold microwire electrodes decorated with gold nanoparticles (AuNPs) and colloidal platinum (colloidal-Pt), respectively. The nanostructured AuNPs electrode was used as a support matrix for the immobilization of horseradish peroxidase (HRP) and the colloidal-Pt served as the non-enzymatic glucose biosensor in the construction of a dual in-line electrochemical biosensor that provides a microenvironment for HRP and a pathway for analyte diffusion via the high surface area. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.005DOI Listing

Evaluation of Ficus tikoua leaves extract as an eco-friendly corrosion inhibitor for carbon steel in HCl media.

Bioelectrochemistry 2019 Mar 9;128:49-55. Epub 2019 Mar 9.

School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China.

An effective and biodegradable Ficus tikoua leaves extract was studied as a corrosion inhibitor for carbon steel in hydrochloric acid. Systematic electrochemical experiments and morphological characterization were carried out to investigate the properties of the corrosion inhibitor. Meanwhile, quantum chemical calculations were performed to aid further understanding of the electrochemical mechanism. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.001DOI Listing

Interpretation of the electrochemical response of a multi-population biofilm in a microfluidic microbial fuel cell using a comprehensive model.

Bioelectrochemistry 2019 Mar 16;128:39-48. Epub 2019 Mar 16.

Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran.

The present study investigates the diversification and dynamic behavior of a multi-population microfluidic microbial fuel cell (MFC) as a biosensor. The cost effective microfluidic MFC coupled to a comprehensive model, presents a novel platform for monitoring chemical and biological phenomena. The importance of competition among different microbial groups, hierarchical biochemical processes, bacterial chemotaxis and different mechanisms of electron transfer were significant considerations in the present model. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.003DOI Listing
March 2019
1 Read

Engineering the spark into bioelectronic medicine.

Ther Deliv 2019 Mar;10(3):139-142

Regenerative Medicine & Cellular Therapies, School of Pharmacy, University of Nottingham, Nottingham, NG7 2RD, UK.

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http://dx.doi.org/10.4155/tde-2019-0008DOI Listing
March 2019
1 Read

Electrochemical monitoring of Acidithiobacillus thiooxidans biofilm formation on graphite surface with elemental sulfur.

Bioelectrochemistry 2019 Mar 16;128:30-38. Epub 2019 Mar 16.

Departamento de Química, Universidad Autónoma Metropolitana Iztapalapa, San Rafael Atlixco 186. Col. Vicentina, 09340 Ciudad de México, Mexico. Electronic address:

Inorganic wastewaters and sediments from the mining industry and mineral bioleaching processes have not been fully explored in bioelectrochemical systems (BES). Knowledge of interfacial changes due to biofilm evolution under acidic conditions may improve applications in electrochemical processes, specifically those related to sulfur compounds. Biofilm evolution of Acidithiobacillus thiooxidans on a graphite plate was monitored by electrochemical techniques, using the graphite plate as biofilm support and elemental sulfur as the only energy source. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.004DOI Listing

Self-Assembled Microgels for Sensitive and Low-Fouling Detection of Streptomycin in Complex Media.

ACS Appl Mater Interfaces 2019 Apr 28;11(14):13676-13684. Epub 2019 Mar 28.

Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu, College of Chemistry and Chemical Engineering , Northwest Normal University , Lanzhou 730070 , China.

In terms of detection of antibiotics within complex media, the nonspecific adsorption is an enormous challenge and antifouling sensing interfaces capable of reducing the nonspecific adsorption from complex biological samples are highly desirable. In this work, a novel antifouling electrochemical immunosensor was explored based on the self-assembly of two kinds of poly( N-isopropylacrylamide) microgels on the surface of graphene oxide for sensitive detection of streptomycin (STR). The microgels modified with glycidyl methacrylate (GMA) and zwitterionic liquid 1-propyl-3-vinylimidazole sulfonate (PVIS) were prepared. Read More

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http://dx.doi.org/10.1021/acsami.9b00277DOI Listing

Bioelectrochemical decolorization of a reactive diazo dye: Kinetics, optimization with a response surface methodology, and proposed degradation pathway.

Bioelectrochemistry 2019 Mar 9;128:9-16. Epub 2019 Mar 9.

School of Environment and Energy Engineering, Key Laboratory of Anhui Province of Water Pollution Control and Wastewater Reuse, Anhui Jianzhu University, Hefei, China.

Bioelectrochemical systems (BESs) have shown great potential for azo dye removal. However, comprehensive evaluation of the bioelectrochemical decolorization performance for reactive diazo dyes remains limited, particularly the kinetics and operation parameter optimization. This study evaluated the decolorization of the diazo dye Reactive Black 5 (RB5) in BESs, particularly with regard to kinetics, parameter optimization using response surface methodology (RSM), and the degradation pathway. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.008DOI Listing

Effect of surface roughness, porosity and roughened micro-pillar structures on the early formation of microbial anodes.

Bioelectrochemistry 2019 Mar 6;128:17-29. Epub 2019 Mar 6.

Laboratoire de Génie Chimique, Université de Toulouse, CNRS, INPT, UPS, Toulouse, France. Electronic address:

The early formation of electroactive biofilms was investigated with gold electrodes inoculated with Geobacter sulfurreducens. Biofilms were formed under an applied potential of 0.1 V/SCE, with a single batch of acetate 10 mM, on flat gold electrodes with different random surface roughness. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.03.002DOI Listing

Enhanced His@AuNCs oxidase-like activity by reduced graphene oxide and its application for colorimetric and electrochemical detection of nitrite.

Anal Bioanal Chem 2019 Apr 13;411(10):2189-2200. Epub 2019 Mar 13.

Key Laboratory of Bioelectrochemistry & Environmental of Gansu Province, Lanzhou, 730070, Gansu, China.

Enzyme-mimicking (nanozyme)-based biosensors are attractive owing to their unique catalytic efficiency, multifunctionality, and tunable activity, but examples of oxidase-like nanozymes are quite rare. Herein, we demonstrated that histidine-capped gold nanoclusters (His@AuNCs) possessed intrinsic oxidase-like activity, which could directly oxidize 3,3',5,5'-tetramethylbenzidine (TMB) to blue colored ox-TMB without HO. The assembly of reduced graphene oxide (RGO) with His@AuNCs could further improve its oxidase-like activity and the His@AuNCs/RGO nanocomposites had a lower Michaelis constant (K) and higher catalytic constant (K) for TMB oxidation. Read More

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http://dx.doi.org/10.1007/s00216-019-01655-yDOI Listing
April 2019
3 Reads

Methane-Linked Mechanisms of Electron Uptake from Cathodes by Methanosarcina barkeri.

MBio 2019 03 12;10(2). Epub 2019 Mar 12.

Department of Physics and Astronomy, University of Southern California, Los Angeles, California, USA.

The , a lineage of cytochrome-containing methanogens, have recently been proposed to participate in direct extracellular electron transfer interactions within syntrophic communities. To shed light on this phenomenon, we applied electrochemical techniques to measure electron uptake from cathodes by , which is an important model organism that is genetically tractable and utilizes a wide range of substrates for methanogenesis. Here, we confirm the ability of to perform electron uptake from cathodes and show that this cathodic current is linked to quantitative increases in methane production. Read More

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http://mbio.asm.org/lookup/doi/10.1128/mBio.02448-18
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http://dx.doi.org/10.1128/mBio.02448-18DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6414700PMC
March 2019
5 Reads

Integrated olfaction, gustation and toxicity detection by a versatile bioengineered cell-based biomimetic sensor.

Bioelectrochemistry 2019 Feb 21;128:1-8. Epub 2019 Feb 21.

Biosensor National Special Laboratory, Key Laboratory for Biomedical Engineering of Education Ministry, Department of Biomedical Engineering, Zhejiang University, Hangzhou 310027, China. Electronic address:

The biological olfactory and gustation system can discriminate thousands of odor and taste substances with high sensitivity and specificity, specific receptor proteins play an important role in this process. This study used the human neuroblastoma SH-SY5Y cell line endogenously expressing the human bitter receptor, T2R16. Meanwhile, an olfactory receptor, ODR-10, was transfected on the plasma membrane of SH-SY5Y cells. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.009DOI Listing
February 2019
1 Read

Copper Ion Fluorescent Probe Based on Zr-MOFs Composite Material.

Anal Chem 2019 Apr 14;91(7):4331-4336. Epub 2019 Mar 14.

Key Lab of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering , Northwest Normal University , Lanzhou 730070 , P. R. China.

In this work, a novel and effective ratio fluorescent porphyrin metal-organic framework (MOF) probe by encapsulating UiO-66(OH) into the porphyrin MOF (PCN-224) was prepared, showing the excellent fluorescence performance in detecting Cu. In this probe, the signal from the green-emission UiO-66(OH) encapsulated in PCN-224 was deemed as an effective reference, thus affording an effective built-in correction in complex environmental effects. The red-emission PCN-224 contained the active site for detecting Cu. Read More

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http://pubs.acs.org/doi/10.1021/acs.analchem.8b03924
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http://dx.doi.org/10.1021/acs.analchem.8b03924DOI Listing
April 2019
10 Reads

Rotavirus VP6 protein as a bio-electrochemical scaffold: Molecular dynamics and experimental electrochemistry.

Bioelectrochemistry 2019 Jun 27;127:180-186. Epub 2019 Feb 27.

Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Priv. Xochicalco, 62580 Temixco, Morelos, Mexico. Electronic address:

This paper reports a theoretical and experimental investigation on the recombinant protein rotavirus VP6 as a bioelectrochemical interface. Our motivation arises from the highly active zones of VP6 which can interact with biological structures and metals, as well as its useful features such as self-assembly, polymorphism, and active surface charge. A molecular simulation study was performed to analyze the charge transfer properties of theVP6 trimer under an applied electric field. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S15675394183058
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http://dx.doi.org/10.1016/j.bioelechem.2019.02.012DOI Listing
June 2019
2 Reads

Electrochemiluminescence Platforms Based on Small Water-Insoluble Organic Molecules for Ultrasensitive Aqueous-Phase Detection.

Angew Chem Int Ed Engl 2019 Apr 27;58(18):5915-5919. Epub 2019 Mar 27.

Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China.

Highly efficient detection in the aqueous phase for water-insoluble organic molecule probes is challenging. The bright aggregated-state electrochemiluminescence (ECL) of 1,1-disubstituted 2,3,4,5-tetraphenylsiloles by a co-reactant approach was discovered, and a heterogeneous aggregation-induced emission ECL (HAIE-ECL) was constructed at the electrode surface, showing very high ECL efficiency (37.8 %) and selective recognition for industrially important DNBP plasticizer with a low detection limit of 0. Read More

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http://dx.doi.org/10.1002/anie.201814507DOI Listing

Electrofusion by a bipolar pulsed electric field: Increased cell fusion efficiency for monoclonal antibody production.

Bioelectrochemistry 2019 Jun 15;127:171-179. Epub 2019 Feb 15.

State Key Laboratory of Power Transmission Equipment & System Security and New Technology, School of Electrical Engineering, Chongqing University, Chongqing 400044, PR China.

The excessive cell death rate caused by electrofusion with unipolar pulses (UPs) has been a bottleneck to increasing cell fusion efficiency in monoclonal antibody technology. Several studies have confirmed that compared with UPs, bipolar pulses (BPs) with microsecond pulse widths can increase electropermeabilization while reducing cell death. Given these characteristics, BPs were used to increase cell fusion efficiency in this study. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.007DOI Listing
June 2019
2 Reads
4.172 Impact Factor

A sensitive amperometric AChE-biosensor for organophosphate pesticides detection based on conjugated polymer and Ag-rGO-NH nanocomposite.

Bioelectrochemistry 2019 Jun 13;127:163-170. Epub 2019 Feb 13.

Collaborative Research Center, Shanghai University of Medicine and Health Sciences, Pudong, Shanghai, China. Electronic address:

Long-term accumulation of organophosphate pesticides in environment presents a potential hazard to human and animal health. Towards this, a highly sensitive amperometric AChE-biosensor based on conjugated polymer and Ag-rGO-NH nanocomposite has been successfully developed. First, 4, 7-di (furan-2-yl) benzo thiadiazole (FBThF) was electrochemically polymerized on the electrode surface. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.003DOI Listing
June 2019
1 Read

Changes in nanomechanical properties and adhesion dynamics of algal cells during their growth.

Bioelectrochemistry 2019 Jun 21;127:154-162. Epub 2019 Feb 21.

Ruđer Bošković Institute, POB 180, 10002 Zagreb, Croatia. Electronic address:

Nanomechanical and structural characterisations of algal cells are of key importance for understanding their adhesion behaviour at interfaces in the aquatic environment. We examine here the nanomechanical properties and adhesion dynamics of the algal cells during two phases of their growth using complementary surface methods and the mathematical modelling. Mechanical properties of motile cells are hard to assess while keeping cells viable, and studies to date have been limited. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.011DOI Listing

Influence of the major pilA transcriptional regulator in electrochemical responses of Geobacter sulfureducens PilR-deficient mutant biofilm formed on FTO electrodes.

Bioelectrochemistry 2019 Jun 22;127:145-153. Epub 2019 Feb 22.

Instituto de Energías Renovables, Universidad Nacional Autónoma de México, Priv. Xochicalco, 62580 Temixco, Morelos, Mexico. Electronic address:

Geobacter sulfurreducens is a model organism for understanding the role of bacterial structures in extracellular electron transfer mechanism (EET). This kind of bacteria relies on different structures such as type IV pili and over 100 c-type cytochromes to perform EET towards soluble and insoluble electron acceptors, including electrodes. To our knowledge, this work is the first electrochemical study comparing a G. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.006DOI Listing

A reduced graphene oxide-titanium dioxide nanocomposite based electrochemical aptasensor for rapid and sensitive detection of Salmonella enterica.

Bioelectrochemistry 2019 Jun 11;127:136-144. Epub 2019 Feb 11.

Centre for Innovation in Medical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia; Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia. Electronic address:

Recent foodborne outbreaks in multiple locations necessitate the continuous development of highly sensitive and specific biosensors that offer rapid detection of foodborne biological hazards. This work focuses on the development of a reduced graphene oxide‑titanium dioxide (rGO-TiO) nanocomposite based aptasensor to detect Salmonella enterica serovar Typhimurium. A label-free aptamer was immobilized on a rGO-TiO nanocomposite matrix through electrostatic interactions. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.005DOI Listing
June 2019
2 Reads

Sensitive amperometric biosensors for detection of glucose and cholesterol using a platinum/reduced graphene oxide/poly(3-aminobenzoic acid) film-modified screen-printed carbon electrode.

Bioelectrochemistry 2019 Jun 13;127:125-135. Epub 2019 Feb 13.

Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Center of Excellence for Innovation in Chemistry (PERCH-CIC), Faculty of Science, Chiang Mai University, Chang Mai 50200, Thailand; Research Center on Chemistry for Development of Health Promoting Products from Northern Resources, Chiang Mai University, Chiang Mai 50200, Thailand. Electronic address:

A facile one-step electrochemical synthesis of a platinum/reduced graphene oxide/poly(3-aminobenzoic acid) (Pt/rGO/P3ABA) nanocomposite film on a screen-printed carbon electrode (SPCE) and its application in the development of sensitive amperometric biosensors was successfully demonstrated herein. The electropolymerization of P3ABA together with co-electrodeposition of rGO and Pt was conducted by cyclic voltammetry, as was the GO reduction to rGO. A Pt/rGO/P3ABA-modified SPCE exhibited excellent electrocatalytic oxidation towards hydrogen peroxide (HO) and can be employed as an electrochemical platform for the immobilization of glucose oxidase (GOx) and cholesterol oxidase (ChOx) to fabricate glucose and cholesterol biosensors, respectively. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.01.008DOI Listing
June 2019
1 Read

Keratinocyte electrotaxis induced by physiological pulsed direct current electric fields.

Bioelectrochemistry 2019 Jun 14;127:113-124. Epub 2019 Feb 14.

Department of Plastic and Cosmetic Surgery, State Key Laboratory of Trauma, Burns and Combined Injury, Southwest Hospital, The Third Military Medical University (Army Medical University), Chongqing, China. Electronic address:

Endogenous electric fields (EFs) direct the migration (electrotaxis) of keratinocytes in skin wounds, and the exogenous application of EFs may therefore improve wound healing, but the potential benefits are limited by the side effects of constant direct current (DC) passing through tissues. In contrast, with pulsed DC (characterized by intermittent output), parameters can be adjusted to minimize the adverse effects of electric currents. However, it remains unknown whether pulsed DC can reliably induce keratinocyte electrotaxis. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.001DOI Listing
June 2019
2 Reads

Facile synthesis of cellulose microfibers supported palladium nanospindles on graphene oxide for selective detection of dopamine in pharmaceutical and biological samples.

Mater Sci Eng C Mater Biol Appl 2019 May 29;98:256-265. Epub 2018 Dec 29.

School of Science and Environment, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom.

The cost-effective synthesis of novel functional nanomaterials has received significant attention in the physical and chemical sciences due to their improved surface area, high catalytic activity along with unique morphological features. This paper reports a facile and eco-friendly synthesis of spindle-like palladium nanostructures (PdSPs) on graphene oxide-cellulose microfiber (GO-CMF) composite for the first time. The GO-CMF/PdSPs composite was synthesized by an electrochemical method without the use of additional surfactants and capping agents. Read More

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http://dx.doi.org/10.1016/j.msec.2018.12.112DOI Listing
May 2019
3 Reads
3.088 Impact Factor

Development of a Bioelectrochemical System as a Tool to Enrich H-Producing Syntrophic Bacteria.

Front Microbiol 2019 5;10:110. Epub 2019 Feb 5.

Centrum for Applied Geosciences, University of Tübingen, Tübingen, Germany.

Syntrophic microbial partnerships are found in many environments and play critical roles in wastewater treatment, global nutrient cycles, and gut systems. An important type of syntrophy for the anaerobic conversion of carboxylic acids is H syntrophy. In this type of microbial partnership, dissolved H is produced by a bacterium and rapidly consumed by an archeon (methanogen), resulting in methane gas. Read More

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http://dx.doi.org/10.3389/fmicb.2019.00110DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6370660PMC
February 2019

Ultratrace Naked-Eye Colorimetric Ratio Assay of Chromium(III) Ion in Aqueous Solution via Stimuli-Responsive Morphological Transformation of Silver Nanoflakes.

Anal Chem 2019 Mar 6;91(6):4031-4038. Epub 2019 Mar 6.

Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering , Northwest Normal University , Lanzhou 730070 , People's Republic of China.

In this work, we discover an effective domino-effect-based detection mechanism for the rapid, high-selectivity, and ultrasensitive naked-eye colorimetric ratio assay of chromium(III) ion (Cr) in aqueous solutions. This naked-eye colorimetric ratio assay to Cr relies on changes in absorbance properties that are due to the stimuli response of Cr for the morphological transformation of silver nanoflakes. In the presence of Cr, large silver nanoflakes can be stimulated to transform to small nanoparticles (NPs), which promoted a color change in solution from bright yellow to wine red that was detected by the naked eye and spectroscopic absorption methods. Read More

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http://dx.doi.org/10.1021/acs.analchem.8b05472DOI Listing

Tubular nitrogen-doped carbon materials derived from green foxtail as a metal-free electrocatalyst in microbial fuel cells for efficient electron generation.

Bioelectrochemistry 2019 Jun 13;127:104-112. Epub 2019 Feb 13.

College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, Sichuan 610066, China; Key Laboratory of Special Waste Water Treatment, Sichuan Province Higher Education System, Chengdu, Sichuan 610066, China.

Oxygen reduction reaction (ORR) on a cathode is a key factor that limits the power generation and application of air-cathode microbial fuel cells. Tubular nitrogen-doped carbon materials synthesized by thermally annealing green foxtail with melamine were investigated as a metal-free electrocatalyst for efficient cathode ORR. Owing to the high specific surface area, tubular and porous structure, and abundant active centers of the pyridinic and graphite nitrogen incorporated carbon matrix, the nitrogen-doped carbon materials showed excellent activity toward ORR in a neutral electrolyte. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.01.009DOI Listing
June 2019
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4.172 Impact Factor

An ultrasensitive electrochemical sensor based on cotton carbon fiber composites for the determination of superoxide anion release from cells.

Mikrochim Acta 2019 02 22;186(3):198. Epub 2019 Feb 22.

Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, 730070, China.

A sensor is described for determination of superoxide anion (O˙). The electrode consists of nitrogen-doped cotton carbon fiber (NCFs) modified with silver nanoparticles (AgNPs) which have excellent catalytic capability. The resulting sensor, best operated at working potentials around -0. Read More

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http://dx.doi.org/10.1007/s00604-019-3304-1DOI Listing
February 2019

On the Molecular Interactions in Lipid Bilayer-Water Assemblies of Different Curvatures.

J Phys Chem B 2019 Mar 15;123(12):2662-2672. Epub 2019 Mar 15.

Department of Bioelectrochemistry and Biospectroscopy, Institute of Biochemistry, Life Sciences Center , Vilnius University , Sauletekio av. 7 , LT-10257 Vilnius , Lithuania.

This work concerns the importance of intermolecular interactions present in aqueous lipid assembly systems depending on the type of aggregates they form. We have studied aqueous mixtures of diglycerol monooleate, Capmul glycerol monoleate (GMO-50) and polyoxyethylene (20) sorbitan monooleate (Polysorbate 80, P80) using small-angle X-ray scattering (SAXS) measurements to reveal the structure of liquid crystalline phases. On the basis of the SAXS data, a phase diagram was constructed. Read More

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http://dx.doi.org/10.1021/acs.jpcb.8b11387DOI Listing
March 2019
3 Reads

Electron transfer interpretation of the biofilm-coated anode of a microbial fuel cell and the cathode modification effects on its power.

Bioelectrochemistry 2019 Jun 8;127:94-103. Epub 2019 Feb 8.

Department of Environmental Engineering, Daejeon University, Daejeon 34520, Republic of Korea. Electronic address:

Biofilm-coated electrodes and outer cell membrane-mimicked electrodes were examined to verify an extracellular electron transfer mechanism using Marcus theory for a donor-acceptor electron transfer. Redox couple-bound membrane electrodes were prepared by impregnating redox coenzymes into Nafion films on carbon cloth electrodes. The electron transfer was believed to occur sequentially from acetate to nicotinamide adenine dinucleotide (NAD), c-type cytochrome, flavin mononucleotide (FMN) (or riboflavin (RBF)) and the anode substrate. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.004DOI Listing
June 2019
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Influence of the electrode material on ROS generation and electroporation efficiency in low and high frequency nanosecond pulse range.

Bioelectrochemistry 2019 Jun 6;127:87-93. Epub 2019 Feb 6.

Biophysical Research Group, Vytautas Magnus University, Kaunas, Lithuania.

Electroporation is a widely-used methodology for permeabilization of cells using pulsed electric field (PEF). In this paper, we compare the electroporation efficiency in terms of molecular transport and the generated reactive oxygen species (ROS) between low (1 Hz) and high (1 MHz) frequency nanosecond range PEF bursts. We used aluminum, copper and stainless-steel electrodes and evaluated the influence of electrode material on ROS generation and electroporation. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.02.002DOI Listing
June 2019
3 Reads

Three-dimensional hierarchical frameworks based on molybdenum disulfide-graphene oxide-supported magnetic nanoparticles for enrichment fluoroquinolone antibiotics in water.

J Chromatogr A 2019 May 8;1593:1-8. Epub 2019 Feb 8.

Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China; Tianjin Key Laboratory of Molecular Optoelectronics, Department of Chemistry, Tianjin University, Tianjin 300072, China. Electronic address:

Recently, water pollution caused by antibiotics is rapidly increasing. Thus, developing efficient, fast and sensitive detection methods for environmental antibiotics monitoring are still remaining elusive. Herein, a method for antibiotics analysis including lecofloxacin, pazcofloxacin and gatifloxacin in water by high performance liquid chromatography (HPLC) using molybdenum disulfide-graphene oxide-supported magnetic nanoparticles (FeO/GO/MoS) as the adsorbent of magnetic solid-phase extraction was developed. Read More

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http://dx.doi.org/10.1016/j.chroma.2019.02.005DOI Listing
May 2019
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Biosensor for direct bioelectrocatalysis detection of nitric oxide using nitric oxide reductase incorporated in carboxylated single-walled carbon nanotubes/lipidic 3 bilayer nanocomposite.

Bioelectrochemistry 2019 Jun 5;127:76-86. Epub 2019 Feb 5.

REQUIMTE-LAQV, Instituto Superior de Engenharia do Porto, Rua Dr. António Bernardino de Almeida, 4249-015 Porto, Portugal. Electronic address:

An enzymatic biosensor based on nitric oxide reductase (NOR; purified from Marinobacter hydrocarbonoclasticus) was developed for nitric oxide (NO) detection. The biosensor was prepared by deposition onto a pyrolytic graphite electrode (PGE) of a nanocomposite constituted by carboxylated single-walled carbon nanotubes (SWCNTs), a lipidic bilayer [1,2-di-(9Z-octadecenoyl)-sn-glycero-3-phosphoethanolamine (DOPE), 1,2-di-(9Z-octadecenoyl)-3-trimethylammonium-propane (DOTAP), 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-polyethylene glycol (DSPE-PEG)] and NOR. NOR direct electron transfer and NO bioelectrocatalysis were characterized by several electrochemical techniques. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S15675394183047
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http://dx.doi.org/10.1016/j.bioelechem.2019.01.010DOI Listing
June 2019
6 Reads

Electrochemical detection of toxic anti-scald agent diphenylamine using oxidized carbon nanofiber encapsulated titanium carbide electrocatalyst.

J Hazard Mater 2019 Apr 1;368:760-770. Epub 2019 Feb 1.

Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 10608, Taiwan.

Two dimensional (2D) titanium carbide (Ti-C) is an analogues of graphene have tremendous attention in recent years due to their high electrical conductivity and catalytic activity. Herein, we have synthesized Ti-C micro particles based on the template-assisted method and subsequently integrated with oxidized carbon nanofiber (f-CNF) through ultrasonication technique. The prepared Ti-C/f-CNF composite was subjected to various structural and morphological characterization techniques including the X-ray diffraction (XRD), scanning electron microscope (SEM), Energy Dispersive X-ray (EDX) and X-ray photoelectron spectroscopy (XPS). Read More

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http://dx.doi.org/10.1016/j.jhazmat.2019.01.110DOI Listing
April 2019
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Electro-conversion of carbon dioxide (CO) to low-carbon methane by bioelectromethanogenesis process in microbial electrolysis cells: The current status and future perspective.

Bioresour Technol 2019 May 31;279:339-349. Epub 2019 Jan 31.

Research Institute on Bioengineering, Membrane Technology and Energetics, University of Pannonia, Egyetem ut 10, 8200 Veszprém, Hungary.

Given the aggravated greenhouse effect caused by CO and the current energy shortage, CO capture and reuse has been gaining ever-increasing concerns. Microbial Electrolysis Cells (MECs) has been considered to be a promising alternative to recycle CO bioelectrochemically to low-carbon electrofuels such as CH by combining electroactive microorganisms with electrochemical stimulation, enabling both CO fixation and energy recovery. In spite of the numerous efforts dedicated in this field in recent years, there are still many problems that hinder CO bioelectroconversion technique from the scaling-up and potential industrialization. Read More

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http://dx.doi.org/10.1016/j.biortech.2019.01.145DOI Listing
May 2019
2 Reads

Scalability of self-stratifying microbial fuel cell: Towards height miniaturisation.

Bioelectrochemistry 2019 Jun 9;127:68-75. Epub 2019 Jan 9.

Bristol BioEnergy Centre, Bristol Robotics Laboratory, T-Block, Frenchay Campus, University of the West of England (UWE), Bristol BS16 1QY, United Kingdom. Electronic address:

The scalability of bioelectrochemical systems is a key parameter for their practical implementation in the real-world. Up until now, only urine-fed self-stratifying microbial fuel cells (SSM-MFCs) have been shown to be scalable in width and length with limited power density losses. For practical reasons, the present work focuses on the scalability of SSM-MFCs in the one dimension that has not yet been investigated, namely height. Read More

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https://linkinghub.elsevier.com/retrieve/pii/S15675394183054
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http://dx.doi.org/10.1016/j.bioelechem.2019.01.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6450375PMC
June 2019
3 Reads

A novel copper (II) PAmPiCaT complex (cPAmPiCaTc) as a biologically potent candidate: A contraption evidence against methicillin-resistant Staphylococcus aureus (MRSA) and a molecular docking proof.

Bioorg Med Chem 2019 Mar 28;27(5):841-850. Epub 2019 Jan 28.

Department of Chemistry, Sri Jayachamarajendra College of Engineering, JSS Science and Technology University, Mysuru 570 006, Karnataka, India. Electronic address:

Increasing in the alarm against the resistant bacteria due to the failure of antibiotics, thereby the need of more efficiency/potent molecule to treat infections. In the present investigation, series of piperazine derivatives 5(a-l) compounds were synthesized and they were characterised by different spectral techniques such as H NMR, C NMR, IR and LCMS. A novel copper complex (cPAmPiCaTc) was developed for the first time by using potent analog 5e and characterized by IR and LCMS. Read More

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http://dx.doi.org/10.1016/j.bmc.2019.01.026DOI Listing
March 2019
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Nitrogen doped carbon nanofibers loaded with hierarchical vanadium tetrasulfide for the voltammetric detection of the non-steroidal anti-prostate cancer drug nilutamide.

Mikrochim Acta 2019 02 1;186(3):141. Epub 2019 Feb 1.

Nanotechnology Research Centre, SRM Institute of Science and Technology, Chennai, 603 203, India.

An electrochemical sensor is described for the determination of nilutamide (NLM) in biological fluids. A flexible mat of nitrogen-doped carbon nanofibers (NCNFs) was prepared by electrospinning. This was followed by carbonization and the growth of one-dimensional vanadium tetrasulfide (VS) nanorods in the circumference of the NCNFs by a solvothermal route. Read More

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http://dx.doi.org/10.1007/s00604-019-3251-xDOI Listing
February 2019
3.741 Impact Factor

Fabrication of an imprinted electrochemical sensor from l-tyrosine, 3-methyl-4-nitrophenol and gold nanoparticles for quinine determination.

Authors:
F Azadmehr K Zarei

Bioelectrochemistry 2019 Jun 18;127:59-67. Epub 2019 Jan 18.

School of Chemistry, Damghan University, Damghan, Iran. Electronic address:

This study employed a molecularly imprinted composite (MIC) to develop a selective and very sensitive sensor for the determination of quinine. To fabricate the MIC sensor, 3-methyl-4-nitrophenol (MNP) and L-tyrosine (Tyr) were simultaneously electrodeposited in acidic media containing HAuCl to entrap Au nanoparticles (AuNPs) into the formed composite network. The effect of Tyr on the sensitivity and selectivity of the sensor and its electrochemical performance were evaluated. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.01.001DOI Listing

Defect and Additional Active Sites on the Basal Plane of Manganese-Doped Molybdenum Diselenide for Effective Enzyme Immobilization: In Vitro and in Vivo Real-Time Analyses of Hydrogen Peroxide Sensing.

ACS Appl Mater Interfaces 2019 Feb 12;11(8):7862-7871. Epub 2019 Feb 12.

Chemistry Division, Center for General Education , Chang Gung University , Taoyuan 333 , Taiwan.

The defect engineering makes the new concepts and designs to further enhance the electrocatalytic activity of layered structures. In this work, we demonstrated the synthesis of Mn-doped MoSe and reported the resultant defective sites. Subsequently, the MnMoSe was developed as a new type of electrocatalyst for electrochemical biosensors. Read More

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http://pubs.acs.org/doi/10.1021/acsami.8b22389
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http://dx.doi.org/10.1021/acsami.8b22389DOI Listing
February 2019
3 Reads

Effect of alternating current and Bacillus cereus on the stress corrosion behavior and mechanism of X80 steel in a Beijing soil solution.

Bioelectrochemistry 2019 Jun 21;127:49-58. Epub 2019 Jan 21.

Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, China.

The effects of alternating current (AC) and Bacillus cereus (B. cereus) on the stress corrosion behavior and mechanism of X80 pipeline steel were investigated in a Beijing soil solution in this study. Both AC and B. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.01.006DOI Listing

Electrochemical characterization of LHCII on graphite electrodes - Potential-dependent photoactivation and arrangement of complexes.

Bioelectrochemistry 2019 Jun 22;127:37-48. Epub 2019 Jan 22.

Faculty of Biology, Department of Metabolic Regulation, Institute of Biochemistry, University of Warsaw, Miecznikowa 1, 02-096 Warsaw, Poland. Electronic address:

Light-dependent electrochemical properties of the light harvesting complexes of Photosystem II (LHCII) and the corresponding interactions with screen-printed graphite electrodes (GEs) are determined. No exogenous soluble redox mediators are used. LHCII isolated from spinach leaves are immobilized on GE by physical adsorption and through interactions with glutaraldehyde. Read More

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http://dx.doi.org/10.1016/j.bioelechem.2019.01.005DOI Listing
June 2019
1 Read