294 results match your criteria cell-based electrochemical


Sustainable electrode material for high-energy supercapacitor: biomass-derived graphene-like porous carbon with three-dimensional hierarchically ordered ion highways.

Phys Chem Chem Phys 2021 Jun;23(22):12807-12821

Hasan Kalyoncu University, Faculty of Health Sciences, Department of Nutrition and Dietetics, Gaziantep, Turkey.

Biomass-derived carbonaceous materials have been deemed to be one of the up-and-coming electrode materials for high-performance energy storage systems due to their cost-neutral abundant resources, sustainable nature, easy synthesis methods, and environmentally benign features. In this work, various graphene-like porous carbon networks (GPCs) with three-dimensional (3D) hierarchically ordered "ion highways" have been synthesized by the carbonization/activation of orange-peel wastes for use as an electrode material in high-energy supercapacitors. The porous structures and surface morphologies of the GPCs were rationally fine-tuned as a function of the activation agent ratio. Read More

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A novel smartphone-based electrochemical cell sensor for evaluating the toxicity of heavy metal ions Cd, Hg, and Pb in rice.

Anal Bioanal Chem 2021 May 31. Epub 2021 May 31.

College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing, Nanjing University of Finance and Economics, Nanjing, 210023, Jiangsu, China.

A novel smartphone-based electrochemical cell sensor was developed to evaluate the toxicity of heavy metal ions, such as cadmium (Cd), lead (Pb), and mercury (Hg) ions on Hep G2 cells. The cell sensor was fabricated with reduced graphene oxide (RGO)/molybdenum sulfide (MoS) composites to greatly improve the biological adaptability and amplify the electrochemical signals. Differential pulse voltammetry (DPV) was employed to measure the electrical signals induced by the toxicity of heavy metal ions. Read More

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Electrochemical Cell Chips Based on Functionalized Nanometals.

Front Chem 2021 6;9:671922. Epub 2021 May 6.

Department of Chemical and Biomolecular Engineering, Sogang University, Seoul, South Korea.

The electrochemical technique is one of the most accurate, rapid, and sensitive analytical assays, which becomes promising techniques for biological assays at a single-cell scale. Nanometals have been widely used for modification of the traditional electrodes to develop highly sensitive electrochemical cell chips. The electrochemical cell chips based on the nanostructured surface have been used as label-free, simple, and non-destructive techniques for monitoring of the effects of different anticancer drugs at the cellular level. Read More

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Unlocking Rapid and Robust Sodium Storage Performance of Zinc-Based Sulfide Indium Incorporation.

ACS Nano 2021 May 26;15(5):8507-8516. Epub 2021 Apr 26.

Pillar of Engineering Product Development, Singapore University of Technology and Design, Singapore 487372, Singapore.

Zinc sulfide (ZnS) exhibits promise in sodium-ion batteries (SIBs) because of its low operation voltage and high theoretical specific capacity. However, pristine ZnS is not adequate in realizing rapid and robust sodium storage owing to its low reversibility, poor structure stability, and sluggish kinetics. To date, most efforts focus on utilizing carbonaceous incorporation to improve its electrochemical performances. Read More

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Cell-based electrochemical cytosensor for rapid and sensitive evaluation of the anticancer effects of saponin on human malignant melanoma cells.

Bioelectrochemistry 2021 Aug 31;140:107813. Epub 2021 Mar 31.

Department of Bionano Engineering, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 426-791, South Korea. Electronic address:

Discovering new anticancer agents and analyzing their activities is a vital part of drug development, but it requires a huge amount of time and resources, leading to the increasing demands for more-effective techniques. Herein, a novel and simple cell-based electrochemical biosensor, referred to as a cytosensor, was proposed to investigate the electrochemical behavior of human skin malignant melanoma (SK-MEL28) cells and the anticancer effect of saponin on cell viability. To enhance both electrocatalytic properties and biocompatibility, gold nanoparticles were electrochemically deposited onto a conductive substrate, and poly-L-lysine was further added to the electrode surface. Read More

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Two-dimensional metal-organic framework-graphene oxide hybrid nanocomposite proton exchange membranes with enhanced proton conduction.

J Colloid Interface Sci 2021 Jul 18;594:593-603. Epub 2021 Mar 18.

Department of Chemical & Biochemical Engineering, Fujian Provincial Key Laboratory of Theoretical and Computational Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, PR China.

A novel two-dimensional (2D) zeolitic imidazolate framework-graphene oxide hybrid nanocomposite ([email protected]) is designed as an inorganic filler in sulfonated poly(ether ether ketone) (SPEEK). ZIF-L with unique leaf-like morphology is grown in-situ on the GO sheet in aqueous media at room temperature. The terminal imidazole linker in [email protected] and the -SOH in SPEEK can form acid-base pairs in the membrane interface to produce low energy proton conduction highway. Read More

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Substrate degradation, biodiesel production, and microbial community of two electro-fermentation systems on treating oleaginous microalgae Nannochloropsis sp.

Bioresour Technol 2021 Jun 6;329:124932. Epub 2021 Mar 6.

College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China. Electronic address:

Electro-fermentation system (EFS) emerges its effectiveness on treating microalgae for biodiesel production, but much is unknown about biodegradation behaviors, biodiesel characteristics, and microbial community. Compared with conventional fermentation system (CFS), microbial electrolysis cell-based EFS (MEC-EFS) and microbial fuel cell-based EFS (MFC-EFS) were investigated for the performance while treating microalgae Nannochloropsis sp. Results indicated that MEC-EFS presented much higher first-order decomposition rate coefficients of carbohydrates and proteins (1. Read More

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Rechargeable microbial fuel cell based on bidirectional extracellular electron transfer.

Bioresour Technol 2021 Jun 23;329:124887. Epub 2021 Feb 23.

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

Rechargeable microbial electrochemical systems can be used as renewable energy storage systems or as potable bioelectronics devices. In this study, a bioelectrode capable of bidirectional extracellular electron transfer was firstly introduced to construct the rechargeable microbial fuel cell (MFC). The performance of rechargeable MFC was enhanced with the increase of charge/discharge cycles, and a maximum energy efficiency of 4. Read More

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In-Situ Characterization of Dynamic Morphological and Phase Changes of Selenium-doped Germanium Using a Single Particle Cell and Synchrotron Transmission X-ray Microscopy.

ChemSusChem 2021 Mar 2;14(5):1370-1376. Epub 2021 Feb 2.

Department of Mechanical and Energy Engineering, Indiana University Purdue, University Indianapolis, Indianapolis, IN 46202, USA.

The dynamic information of lithium-ion battery active materials obtained from coin cell-based in-situ characterizations might not represent the properties of the active material itself because many other factors in the cell could have impacts on the cell performance. To address this problem, a single particle cell was developed to perform the in-situ characterization without the interference of inactive materials in the battery electrode as well as the X-ray-induced damage. In this study, the dynamic morphological and phase changes of selenium-doped germanium (Ge Se ) at the single particle level were investigated via synchrotron-based in-situ transmission X-ray microscopy. Read More

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Electrochemical Characteristics of a Polymer/Garnet Trilayer Composite Electrolyte for Solid-State Lithium-Metal Batteries.

ACS Appl Mater Interfaces 2021 Jan 6;13(2):2507-2520. Epub 2021 Jan 6.

Battery Research Center of Green Energy, Ming Chi University of Technology, New Taipei City 24301, Taiwan, R.O.C.

Although solid-state Li-metal batteries (LMBs) featuring polymer-based solid electrolytes might one day replace conventional Li-ion batteries, the poor Li-ion conductivity of solid polymer electrolytes at low temperatures has hindered their practical applications. Herein, we describe the first example of using a co-precipitation method in a Taylor flow reactor to produce the metal hydroxides of both the Ga/F dual-doped LiLaZrO (Ga/F-LLZO) ceramic electrolyte precursors and the LiMoO-modified NiCoMnO ([email protected] 811) cathode materials for LMBs. The Li/Nafion (LiNf)-coated Ga/F-LLZO ([email protected]/F-LLZO) ceramic filler was finely dispersed in the poly(vinylidene fluoride)/polyacrylonitrile/lithium bis(trifluoromethanesulfonimide)/succinonitrile matrix to give a trilayer composite polymer electrolyte (denoted "Tri-CPE") through a simple solution-casting. Read More

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January 2021

A facile strategy for quantitative sensing of glycans on cell surface using organic electrochemical transistors.

Biosens Bioelectron 2021 Mar 3;175:112878. Epub 2020 Dec 3.

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, PR China. Electronic address:

This work designed a facile sensing strategy for quantitation of glycans on cell surface using organic electrochemical transistors (OECTs). The sensing strategy was performed by covalently binding target cells on mercaptopropionic acid modified gate electrode for the recognition of horseradish peroxidase (HRP) labeled lectins to specific glycans on cell surface, which led to sensitive channel current signal responding to the captured HRP and thus the expression of cell surface glycans. The quantitation of glycans on cell surface was achieved by using glycan modified microspheres to simulate the cells, on which the amounts of glycans were detected with enzyme linked immunosorbent assay. Read More

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Miniaturized electrochemical biosensor based on whole-cell for heavy metal ions detection in water.

Biotechnol Bioeng 2021 Apr 21;118(4):1456-1465. Epub 2021 Jan 21.

STMicroelectronics, Catania, Italy.

The heavy metals pollution represents one of the important issues in the environmental field since it is involved in many pathologies from cancer, neurodegenerative, and metabolic diseases. We propose an innovative portable biosensor for the determination of traces of trivalent arsenic (As(III)) and bivalent mercury (Hg(II)) in water. The system implements a strategy combining two advanced sensing modules consisting in (a) a whole cell based on engineered Escherichia coli as selective sensing element towards the metals and (b) an electrochemical miniaturised silicon device with three microelectrodes and a portable reading system. Read More

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Integrating microbial electrolysis cell based on electrochemical carbon dioxide reduction into anaerobic osmosis membrane reactor for biogas upgrading.

Water Res 2021 Feb 27;190:116679. Epub 2020 Nov 27.

Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Environmental Science and Technology, Dalian University of Technology, No.2 Linggong Road, Dalian 116024, P. R. China.

It has been reported that anaerobic osmosis membrane bioreactors have the potential for energy recovery since dissolved methane was almost rejected by commercial forward osmosis membranes. Notwithstanding, upgraded biogas has to be achieved by removing as much carbon dioxide as possible. In this study, a novel anaerobic osmotic membrane bioreactor-microbial electrolysis cell (AnOMBR-MEC) system was developed for simultaneous biogas upgrading and wastewater treatment. Read More

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February 2021

Improved soluble expression and use of recombinant human renalase.

PLoS One 2020 12;15(11):e0242109. Epub 2020 Nov 12.

Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, New York, United States of America.

Electrochemical bioreactor systems have enjoyed significant attention in the past few decades, particularly because of their applications to biobatteries, artificial photosynthetic systems, and microbial electrosynthesis. A key opportunity with electrochemical bioreactors is the ability to employ cofactor regeneration strategies critical in oxidative and reductive enzymatic and cell-based biotransformations. Electrochemical cofactor regeneration presents several advantages over other current cofactor regeneration systems, such as chemoenzymatic multi-enzyme reactions, because there is no need for a sacrificial substrate and a recycling enzyme. Read More

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January 2021

Further advance of Species in the Canary Islands, with the First Report of .

Toxins (Basel) 2020 10 31;12(11). Epub 2020 Oct 31.

Institut de Recerca i Tecnologies Agroalimentàries (IRTA), Ctra. Poble Nou Km 5.5, Sant Carles de la Ràpita, 43540 Tarragona, Spain.

Ciguatera Poisoning (CP) is a human food-borne poisoning that has been known since ancient times to be found mainly in tropical and subtropical areas, which occurs when fish or very rarely invertebrates contaminated with ciguatoxins (CTXs) are consumed. The genus of marine benthic dinoflagellates produces CTX precursors. The presence of species in a region is one indicator of CP risk. Read More

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October 2020

Co-Construction of Sulfur Vacancies and Heterojunctions in Tungsten Disulfide to Induce Fast Electronic/Ionic Diffusion Kinetics for Sodium-Ion Batteries.

Adv Mater 2020 Nov 21;32(47):e2005802. Epub 2020 Oct 21.

Beijing Key Laboratory of Environmental Science and Engineering, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.

Engineering novel electrode materials with unique architectures has a significant impact on tuning the structural/electrochemical properties for boosting the performance of secondary battery systems. Herein, starting from well-organized WS nanorods, an ingenious design of a one-step method is proposed to prepare a bimetallic sulfide composite with a coaxial carbon coating layer, simply enabled by ZIF-8 introduction. Rich sulfur vacancies and WS /ZnS heterojunctions can be simultaneously developed, that significantly improve ionic and electronic diffusion kinetics. Read More

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November 2020

The Rationale for Use of Amiodarone and its Derivatives for the Treatment of Chagas' Disease and Leishmaniasis.

Curr Pharm Des 2021 ;27(15):1825-1833

Department of Pathology, Molecular, and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, United States.

The repurposing or repositioning of previously-approved drugs has become an accepted strategy for the expansion of the pharmacopeia for neglected diseases. Accordingly, amiodarone, an inexpensive and extensively- used class III antiarrhythmic has been proposed as a treatment for Chagas' disease and leishmaniasis. Amiodarone has a potent trypanocidal and leishmanicidal action, mainly acting through the disruption of parasite intracellular Ca homeostasis, which is a recognized target of different drugs that have activity against trypanosomatids. Read More

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January 2021

Recent progress in environmentally friendly bio-electrochemical devices for simultaneous water desalination and wastewater treatment.

Sci Total Environ 2020 Dec 24;748:141046. Epub 2020 Jul 24.

Department of Mechanical and Nuclear Engineering, University of Sharjah, 27272 Sharjah, United Arab Emirates. Electronic address:

Bio-electrochemical systems (BESs) use electroactive micro-organisms for degrading organic materials in wastes for energy and/or chemical production. Microbial based desalination system is a cost-effective and environmentally friendly technique that can be used for water desalination with simultaneous wastewater treatment and energy harvesting. These systems can be used as a standalone technology for water desalination such as microbial desalination cell, microbial electrolysis desalination cell, or a hybrid with other desalination technology. Read More

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December 2020

Applications of Bionano Sensor for Extracellular Vesicles Analysis.

Materials (Basel) 2020 Aug 21;13(17). Epub 2020 Aug 21.

Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea.

Recently, extracellular vesicles (EVs) and their contents have been revealed to play crucial roles in the intrinsic intercellular communications and have received extensive attention as next-generation biomarkers for diagnosis of diseases such as cancers. However, due to the structural nature of the EVs, the precise isolation and characterization are extremely challenging. To this end, tremendous efforts have been made to develop bionano sensors for the precise and sensitive characterization of EVs from a complex biologic fluid. Read More

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Microfluidic-Based Electrochemical Immunosensing of Ferritin.

Biosensors (Basel) 2020 Aug 5;10(8). Epub 2020 Aug 5.

Department of Chemistry and Biochemistry, University of Hull, Cottingham Road, Hull HU6 7RX, UK.

Ferritin is a clinically important biomarker which reflects the state of iron in the body and is directly involved with anemia. Current methods available for ferritin estimation are generally not portable or they do not provide a fast response. To combat these issues, an attempt was made for lab-on-a-chip-based electrochemical detection of ferritin, developed with an integrated electrochemically active screen-printed electrode (SPE), combining nanotechnology, microfluidics, and electrochemistry. Read More

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Advances in Detecting Ciguatoxins in Fish.

Toxins (Basel) 2020 07 31;12(8). Epub 2020 Jul 31.

Department of Biology, School of Pure Sciences, College of Engineering, Science and Technology, Fiji National University, P.O. Box 5529 Lautoka, Fiji.

Ciguatera fish poisoning (CFP) is currently the most common marine biotoxin food poisoning worldwide, associated with human consumption of circumtropical fish and marine invertebrates that are contaminated with ciguatoxins. Ciguatoxins are very potent sodium-channel activator neurotoxins, that pose risks to human health at very low concentrations (>0.01 ng per g of fish flesh in the case of the most potent Pacific ciguatoxin). Read More

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A Cross-Linkable Electron-Transport Layer Based on a Fullerene-Benzoxazine Derivative for Inverted Polymer Solar Cells.

Chempluschem 2020 Jul;85(7):1534-1541

Photosciences and Photonics Section, CSIR-National Institute for Interdisciplinary Science and Technology, Thiruvananthapuram, 695 019, India.

The synthesis, optoelectronic characterization and device properties of a cross-linkable fullerene derivative, [6,6]-phenyl-C -butyric benzoxazine ester (PCBB) is reported. PCBB shows all the basic photophysical and electrochemical properties of the parent compound [6,6]-phenyl-C -butyric methyl ester (PCBM). Thermal cross-linking of the benzoxazine moiety in PCBB resulted in the formation of cross-linked, solvent resistive adhesive films (C-PCBB). Read More

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High-Efficiency Cathode Sodium Compensation for Sodium-Ion Batteries.

Adv Mater 2020 Aug 6;32(33):e2001419. Epub 2020 Jul 6.

CAS Key Laboratory of Molecular Nanostructure and Nanotechnology, CAS Research/Education Center for Excellence in Molecular Sciences, Beijing National Laboratory for Molecular Sciences (BNLMS), Institute of Chemistry, Chinese Academy of Sciences (CAS), Beijing, 100190, P. R. China.

Sodium-ion batteries have gained much attention for their potential application in large-scale stationary energy storage due to the low cost and abundant sodium sources in the earth. However, the electrochemical performance of sodium-ion full cells (SIFCs) suffers severely from the irreversible consumption of sodium ions of cathode during the solid electrolyte interphase (SEI) formation of hard carbon anode. Here, a high-efficiency cathode sodiation compensation reagent, sodium oxalate (Na C O ), which possesses both a high theoretical capacity of 400 mA h g and a capacity utilization as high as 99%, is proposed. Read More

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Recent Advances in Monitoring Cell Behavior Using Cell-Based Impedance Spectroscopy.

Micromachines (Basel) 2020 Jun 13;11(6). Epub 2020 Jun 13.

Department of Physical and Environmental Sciences, University of Toronto Scarborough, 1265 Military Trail, Toronto, ON M1C 1A4, Canada.

Cell-based impedance spectroscopy (CBI) is a powerful tool that uses the principles of electrochemical impedance spectroscopy (EIS) by measuring changes in electrical impedance relative to a voltage applied to a cell layer. CBI provides a promising platform for the detection of several properties of cells including the adhesion, motility, proliferation, viability and metabolism of a cell culture. This review gives a brief overview of the theory, instrumentation, and detection principles of CBI. Read More

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Optical and Electronic Ion Channel Monitoring from Native Human Membranes.

ACS Nano 2020 10 2;14(10):12538-12545. Epub 2020 Jun 2.

Department of Chemical Engineering and Biotechnology, University of Cambridge, Philippa Fawcett Drive, CB30AS Cambridge, United Kingdom.

Transmembrane proteins represent a major target for modulating cell activity, both in terms of therapeutics drugs and for pathogen interactions. Work on screening such therapeutics or identifying toxins has been severely limited by the lack of available methods that would give high content information on functionality (ideally multimodal) and that are suitable for high-throughput. Here, we have demonstrated a platform that is capable of multimodal (optical and electronic) screening of ligand gated ion-channel activity in human-derived membranes. Read More

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October 2020

Miniaturized Paper-Supported 3D Cell-Based Electrochemical Sensor for Bacterial Lipopolysaccharide Detection.

ACS Sens 2020 05 20;5(5):1325-1335. Epub 2020 Apr 20.

School of Food Science and Technology, Yangzhou University, Yangzhou, Jiangsu 225127, P. R. China.

Sensitive detection of lipopolysaccharides (LPSs), which are present on the outer wall of Gram-negative bacteria, is important to reflect the degree of bacterial contamination in food. For indirect assessment of the LPS content, a miniaturized electrochemical cell sensor consisting of a screen-printed paper electrode, a three-dimensional cells-in-gels-in-paper culture system, and a conductive jacket device was developed for detection of nitric oxide released from LPS-treated mouse macrophage cells (Raw264.7). Read More

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Tetraphenylbutadiene-Based Symmetric 3D Hole-Transporting Materials for Perovskite Solar Cells: A Trial Trade-off between Charge Mobility and Film Morphology.

ACS Appl Mater Interfaces 2020 May 21;12(18):21088-21099. Epub 2020 Apr 21.

School of Chemistry, Sun Yat-sen University, Guangzhou 510275, China.

Two three-dimensional symmetric tetraphenylbutadiene derivatives decorated with diphenylamine or triphenylamine fragments are first prepared for use as hole-transporting materials (HTMs) in perovskite solar cells (PSCs). The HTMs are acquired using straightforward synthetic methods and facile purification techniques. The thermal stability, photophysical properties, electrochemical behaviors, computational study, hole mobility, X-ray diffraction, hole transfer dynamics, hydrophobicity, surface morphology, and photovoltaic performances of the HTMs are discussed. Read More

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Analysing and optimizing the electrolysis efficiency of a lithium cell based on the electrochemical and multiphase model.

R Soc Open Sci 2020 Jan 15;7(1):191124. Epub 2020 Jan 15.

National Engineering Research Center for Integrated Utilization of Salt Lake Resource, East China University of Science and Technology, Shanghai, China.

Based on an electrochemical multiphysical simulation, a method for analysing electrolysis efficiency has been presented that considers the energy consumption required to produce a single kilogram of lithium and for the production of lithium, rather than the voltage in various parts. By adopting them as the criteria for analysing electrolysis efficiency in the lithium cell, several structural parameters have been optimized, such as the anode radius and anode-cathode distance. These parameters strongly affect the cell voltage and the velocity field distribution, which has a significant impact on the concentration distribution. Read More

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January 2020

A Coculture Based Tyrosine-Tyrosinase Electrochemical Gene Circuit for Connecting Cellular Communication with Electronic Networks.

ACS Synth Biol 2020 05 2;9(5):1117-1128. Epub 2020 Apr 2.

Fischell Department of Bioengineering, University of Maryland, 3102 A. James Clark Hall, 8278 Paint Branch Drive, College Park, Maryland 20742, United States.

There is a growing interest in mediating information transfer between biology and electronics. By the addition of redox mediators to various samples and cells, one can both electronically obtain a redox "portrait" of a biological system and, conversely, program gene expression. Here, we have created a cell-based synthetic biology-electrochemical axis in which engineered cells process molecular cues, producing an output that can be directly recorded via electronics-but without the need for added redox mediators. Read More

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Addressing the Analytical Challenges for the Detection of Ciguatoxins Using an Electrochemical Biosensor.

Anal Chem 2020 04 17;92(7):4858-4865. Epub 2020 Mar 17.

IRTA, Ctra. Poble Nou km 5.5, 43540 Sant Carles de la Ràpita, Spain.

The importance of ciguatoxins (CTXs) in seafood safety and their emerging occurrence in locations far away from tropical areas highlight the need for simple and low-cost methods for the sensitive and rapid detection of these potent marine toxins to protect seafood consumers. Herein, an electrochemical immunosensor for the detection of CTXs is presented. A sandwich configuration is proposed, using magnetic beads (MBs) as immobilization supports for two capture antibodies, with their combination facilitating the detection of CTX1B, CTX3C, 54-deoxyCTX1B, and 51-hydroxyCTX3C. Read More

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