1,744 results match your criteria Bioelectrochemistry[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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2019.03.003DOI 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

View Article

Download full-text PDF

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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

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

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

View Article

Download full-text PDF

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

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

View Article

Download full-text PDF

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

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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

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

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

View Article

Download full-text PDF

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

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

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2019.02.004DOI Listing
June 2019
1 Read

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

View Article

Download full-text PDF

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

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

View Article

Download full-text PDF

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

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S15675394183054
Publisher Site
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

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

View Article

Download full-text PDF

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

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

View Article

Download full-text PDF

Source
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

View Article

Download full-text PDF

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

Special issue of BES 2017.

Bioelectrochemistry 2019 06 25;127:35-36. Epub 2018 Jul 25.

Marie Curie Fellow, University of Rennes 1, France. Electronic address:

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S15675394183032
Publisher Site
http://dx.doi.org/10.1016/j.bioelechem.2018.07.016DOI Listing
June 2019
3 Reads

A two-phase gradual silver release mechanism from a nanostructured TiAlV surface as a possible antibacterial modification in implants.

Bioelectrochemistry 2019 Jun 8;127:26-34. Epub 2019 Jan 8.

University of Chemistry and Technology, Prague Department of Metals and Corrosion Engineering, Technicka 5, 166 28 Prague, Czech Republic.

Titanium biomaterials are widely used in the medical field due to their biocompatibility and excellent corrosion and mechanical resistance. However, these materials have no antibacterial properties. To obtain an antibacterial active surface, a nanostructure of Ti6Al4V alloy was created. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2019.01.003DOI Listing

Electrochemical evidence for direct interspecies electron transfer between Geobacter sulfurreducens and Prosthecochloris aestuarii.

Bioelectrochemistry 2019 Jun 5;127:21-25. Epub 2019 Jan 5.

Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China.

The syntrophic photosynthesis via direct interspecies electron transfer (DIET) between Geobacter sulfurreducens and Prosthecochloris aestuarii has opened a new paradigm of microbial phototrophy. However, it is still unknown whether this photosynthetic DIET can be mediated by an electrical conductor. Here we report first the photosynthetic DIET in a two-chamber microbial fuel cell (photo-MFC). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2019.01.002DOI Listing
June 2019
1 Read

Electrochemical, spectroscopic and molecular docking studies on the interaction of calcium channel blockers with dsDNA.

Bioelectrochemistry 2019 Jun 28;127:12-20. Epub 2018 Dec 28.

Ankara University, Faculty of Pharmacy, Department of Analytical Chemistry, 06100, Tandogan, Ankara, Turkey. Electronic address:

This study presents evaluation of the possible interaction mechanism between calf thymus dsDNA and three calcium antagonists; nifedipine, lercanidipine and amlodipine. The interactions between Nifedipine-dsDNA and Lercanidipine-dsDNA were investigated by differential pulse voltammetry using two different interaction methods; at the dsDNA-electrochemical biosensor surface and in bulk incubated solution. Amlodipine was used as model drug in bulk incubated solution. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S15675394183045
Publisher Site
http://dx.doi.org/10.1016/j.bioelechem.2018.12.007DOI Listing
June 2019
1 Read

Microbial phyto-power systems - A sustainable integration of phytoremediation and microbial fuel cells.

Bioelectrochemistry 2019 Jun 28;127:1-11. Epub 2018 Dec 28.

Department of Civil and Environmental Engineering, University of Maryland, 298 Campus Dr., College Park, MD 20742, USA.

Constructed wetland microbial fuel cells (CW-MFCs) or phyto-power systems are integrated bioelectrochemical systems (BES) that can sustainably harvest electricity from the anaerobic respiration of rhizospheric bacteria. This integration of techniques shows a promise in phytoremediation of wastewater along with bioenergy generation. In CW-MFCs, electrons harvested in anaerobic respiration of bacteria proliferating in the rhizospheric zone are electrochemically coupled with electron acceptors at the aerobic cathode submersed in water. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.12.005DOI Listing
June 2019
1 Read

A multi-functional minimally-disruptive portable electrochemical system based on yeast/CoO/Au/SPEs for blood lead (II) measurement.

Bioelectrochemistry 2019 Apr 21;126:156-162. Epub 2018 Dec 21.

National-Municipal Joint Engineering Laboratory for Chemical Process, Intensification and Reaction, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China. Electronic address:

A minimally-disruptive portable electrochemical system is constructed by combining a hand-held syringe as reservoir with disposable screen-printed electrodes (SPEs) modified with a simple and efficient yeast/CoO/Au material for lead determination by a square-wave voltammetry (SWV) method. Not only can it preserve the operation and advantages of the conventional electrochemical procedure, but it also integrates sampling, filtering and analysis to make the determination of lead convenient and effective at higher and lower concentration levels. This is the first report of a microbial biosensor based on active yeast crosslinked to CoO/Au particles using glutaraldehyde as the crosslinking agent. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.12.008DOI Listing
April 2019
2 Reads

Regenerated silk fibroin membranes as separators for transparent microbial fuel cells.

Bioelectrochemistry 2019 Apr 17;126:146-155. Epub 2018 Dec 17.

Department of Industrial Engineering and BIOtech Research Center, University of Trento, via Sommarive 9, 38123 Trento, Italy.

In recent years novel applications of bioelectrochemical systems are exemplified by phototrophic biocathodes, biocompatible enzymatic fuel cells and biodegradable microbial fuel cells (MFCs). Herein, transparent silk fibroin membranes (SFM) with various fibroin content (2%, 4% and 8%) were synthesised and employed as separators in MFCs and compared with standard cation exchange membranes (CEM) as a control. The highest real-time power performance of thin-film SFM was reached by 2%-SFM separators: 25. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S15675394183046
Publisher Site
http://dx.doi.org/10.1016/j.bioelechem.2018.12.004DOI Listing
April 2019
9 Reads

β-Lactoglobulin as a potential carrier for bioactive molecules.

Bioelectrochemistry 2019 Apr 20;126:137-145. Epub 2018 Dec 20.

Polish Academy of Sciences, Jerzy Haber Institute of Catalysis and Surface Chemistry, Niezapominajek 8, Cracow 30-239, Poland. Electronic address:

In this study, the interaction and binding behavior of anesthetic tetracaine (TET) with bovine β-lactoglobulin (LGB) isoform A and a mixture of isoforms A and B were investigated under varying environmental conditions (pH, ionic strength, concentration, LGB-TET complex molar ratio). A wide range of analytical techniques (dynamic light scattering (DLS), electrophoretic mobility, UV-Vis spectroscopy, circular dichroism (CD), quartz crystal microbalance (QCM-D) were used to analyze the physicochemical properties of the complexes in bulk solution and on the surface of gold. The experiments revealed that TET, which is amphiphilic, could bind with LGB not only in the β-barrel but also onto the surface. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.12.006DOI Listing

Interfacial electron transfer between Geobacter sulfurreducens and gold electrodes via carboxylate-alkanethiol linkers: Effects of the linker length.

Bioelectrochemistry 2019 Apr 12;126:130-136. Epub 2018 Dec 12.

Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern 3012, Switzerland. Electronic address:

Geobacter sulfurreducens (Gs) attachment and biofilm formation on self-assembled monolayers (SAMs) of carboxyl-terminated alkanethiol linkers with varied chain length on gold (Au) was investigated by electrochemical and microscopic methods to elucidate the effect of the surface modification on the current production efficiency of Gs cells and biofilms. At the initial stage of the cell attachment, the electrochemical activity of Gs cells at a submonolayer coverage on the SAM-Au surface was independent of the linker length. Subsequently, multiple potential cyclings indicated that longer linkers provided more biocompatible conditions for Gs cells than shorter ones. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.11.013DOI Listing

Corrosion behavior of X80 pipeline steel in the presence of Brevibacterium halotolerans in Beijing soil.

Bioelectrochemistry 2019 Apr 5;126:121-129. Epub 2018 Dec 5.

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

In this study, the corrosion behavior of X80 pipeline steel in the presence of Brevibacterium halotolerans (B. halotolerans) was investigated by surface analysis and electrochemical measurements. Results show that B. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.12.001DOI Listing

Cytochrome P450 genes play central roles in transcriptional response by keratinocytes to a high-voltage alternating current electric field.

Bioelectrochemistry 2019 Apr 11;126:163-171. Epub 2018 Dec 11.

Department of Plastic, Reconstructive, and Aesthetic Surgery, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan.

The endogenous electric field (EF) of skin wounds plays an important role in the biological processes that underlie wound healing. Treatments that modulate wound-EFs promote healing. However, the mechanism(s) that underlie this effect remain unclear. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.11.014DOI Listing

Influence of the current density in moderate pulsed electric fields on P. putida F1 eradication.

Bioelectrochemistry 2019 Apr 11;126:172-179. Epub 2018 Dec 11.

Department of Chemical Engineering, Ariel University, Ariel 40700, Israel. Electronic address:

Eradication of P. putida F1 was investigated as a function of current density in pulsed electric fields of 6.7, 4, 2. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.12.003DOI Listing

Electrochemical behavior of titanium and platinum in dicarboxilic amino acids solution.

Bioelectrochemistry 2019 Apr 4;126:113-120. Epub 2018 Dec 4.

Irkutsk State University, 1, K.Marx Str., Irkutsk 664003, Russia. Electronic address:

Titanium and platinum samples as components of bimetallic implants for the osteoregeneration process have been modified in solutions modeling biological systems and studied by means of cyclic voltammetry, electrochemical impedance spectroscopy and scanning probe microscopy. While aspartic and glutamic acids did not adsorb significantly on platinum in the potential region investigated, the presence of the amino acids affects oxide layer growth on the titanium surface under anodic polarization. The two studied amino acids behave differently on the titanium electrode surface due to differences in adsorption modes of these substances. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.11.015DOI Listing

A comparison of microbial fuel cell and microbial electrolysis cell biosensors for real-time environmental monitoring.

Bioelectrochemistry 2019 Apr 1;126:105-112. Epub 2018 Dec 1.

McGill University, Bioresource Engineering Department, 21111 Lakeshore Rd., Ste-Anne-de-Bellevue, QC H9X 3V9, Canada; National Research Council of Canada, 6100 Royalmount Ave, Montreal, QC H4P 2R2, Canada. Electronic address:

This study compares the biosensing performance of a microbial fuel cell (MFC) and a microbial electrolysis cell (MEC). Initial tests provided a qualitative comparison of MFC and MEC currents after the anode compartment liquid (anolyte) was spiked with acetate, or sulphates of NH, Na, Mg, Fe, or a fertilizer solution. Current measurements showed that the MFC sensor had a faster response time, higher sensitivity, and faster recovery time after the spike. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.11.007DOI Listing
April 2019
4 Reads

A novel operational strategy to enhance wastewater treatment with dual-anode assembled microbial desalination cell.

Bioelectrochemistry 2019 Apr 1;126:99-104. Epub 2018 Dec 1.

State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, PR China. Electronic address:

This study introduced a novel dual-anode assembled microbial desalination cell to enhance the performance of domestic wastewater treatment. Two parallel units were fabricated with two anodes and one cathode, which is separated by two ion exchange membrane stacks. A hollow fiber membrane module was inserted in the cathode to intercept suspended solids and microbes. Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.11.009DOI Listing

A sandwich-type electrochemical immunosensor based on RhPt NDs/NH-GS and Au NPs/PPy NS for quantitative detection hepatitis B surface antigen.

Bioelectrochemistry 2019 Apr 1;126:92-98. Epub 2018 Dec 1.

School of Chemistry and Chemical Engineering, Shandong University of Technology, 255049 Zibo, PR China. Electronic address:

In this work, a sandwich-type electrochemical immunosensor was fabricated to quantitatively detect hepatitis B surface antigen (HBsAg). The immunosensor was based on Rh core and Pt shell nanodendrites loaded onto amino group functionalized graphene nanosheet (RhPt NDs/NH-GS) as label and gold nanoparticles loaded onto polypyrrole nanosheet (Au NPs/PPy NS) as platform. RhPt NDs with abundant catalytic active sites because of the branched core-shell structure, RhPt NDs/NH-GS as the label displayed high catalytic activity, amplifying the current signal of the immunosensor. Read More

View Article

Download full-text PDF

Source
https://linkinghub.elsevier.com/retrieve/pii/S15675394183037
Publisher Site
http://dx.doi.org/10.1016/j.bioelechem.2018.11.008DOI Listing
April 2019
18 Reads

Cytotoxicity studies of quantum dots with the electroporation method.

Bioelectrochemistry 2019 Apr 1;126:86-91. Epub 2018 Dec 1.

Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 St., 00-664 Warsaw, Poland. Electronic address:

In this study, the cytotoxicity of CdTe quantum dots (QDs) of various dimensions was examined using the electroporation method. The influence of the size of QDs on normal and tumour cell viability after 24 h of incubation with nanomaterials was examined. The three human cell lines were chosen for the tests: A549 (a tumour cell line derived from the lung), MRC-5 (normal fibroblasts from the lung) and HaCaT (normal keratinocytes from the skin). Read More

View Article

Download full-text PDF

Source
http://dx.doi.org/10.1016/j.bioelechem.2018.11.011DOI Listing