Biofuel Cells for Self‐Powered Electrochemical Biosensing and Logic Biosensing: A Review

Zhou, Ming; Wang, Joseph

doi:10.1002/elan.201100631

Cited by 160 publications

(111 citation statements)

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“…However, one could exploit simple biomolecules and microbes toward developing energy generating systems. Indeed, such routes have been explored for decades wherein researchers have utilized microbes and enzymes for developing microbial 22,23 and enzymatic [24][25][26] biofuel cells respectively. The anode and cathode of such systems are constructed out of biological entities that help consume a chemical, via natural processes, to generate electricity.…”

Section: Why Biofuel Cells For Wearable Applications?mentioning

confidence: 99%

Review—Wearable Biofuel Cells: Past, Present and Future

Bandodkar¹

2016

J. Electrochem. Soc.

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The perspective article provides a detailed description of the major developments in the field of wearable biofuel cells. The article expounds several attributes of this newly emerging technology and its potential to address the energy needs of wearable devices. In addition to discussing important milestones reached in this field, the article also highlights the grand challenges that are presently hindering further development of wearable biofuel cells. Particular emphasis has been devoted to major issues related to biofuel cell stability, need for generating stable, high levels of power, mechanical compliance and resiliency and device aesthetics. In addition to this, the article also offers multiple pathways to address these issues. The article aims at generating interest among researchers with diverse expertise to come together on a common platform to overcome the major challenges faced by the field of wearable biofuel cells. Such collaborative efforts will be essential for the success of wearable biofuel cells and to harness their full potential. Why Biofuel Cells for Wearable Applications?Recent development of bio-integrated wearable electronics that provide continuous information, 1,2 entertainment, 3,4 help in carrying out routine activities 5 are a result of our insatiable desire to develop technologies that make lives easy. The nascent field of body-bound electronics is still is in its infancy and there exists several challenges that ought to be addressed for successful adaptation of the technology by various market segments. [6][7][8][9] Identifying suitable wearable energy sources is one of the biggest omnipresent challenge that cuts across almost all wearable electronics fields. 10 The situation is getting further exacerbated as the field of wearable electronics advances toward developing tiny, yet complex, multi-tasking wearable devices that continuously require high levels of energy supply for optimal performance. Research efforts to overcome this issue can be broadly classified into developing low-energy electronics, 11 adaptive algorithms for intelligent, low-power consuming electronics 12 and high energy density power sources. 13 Of these, development of efficient power sources has attained the greatest attention. Usage of conventional power sources, such as, lithium ion and alkaline batteries result in increased bulkiness and rigidity of the wearable electronics wherein just a fraction of the device weight is due to electronics while the rest is because of the battery. Such integration of conventional power sources with wearable electronics thus vitiates the overall attractiveness of the wearable system. Hence, there has been a genuine effort within the scientific community toward developing new formats of power sources for wearable applications. One of the most obvious and widely explored avenues is the development of thin, flexible and even stretchable batteries and supercapacitors that can be easily mated with the human body.14-16 Such body-compliant energy storage systems are quite attracti...

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Section: Why Biofuel Cells For Wearable Applications?mentioning

confidence: 99%

Review—Wearable Biofuel Cells: Past, Present and Future

Bandodkar¹

2016

J. Electrochem. Soc.

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“…54 The main advantage of self -powered biosensing devices is that they can operate without any power input to the cells, producing power and thus making it attractive f or the potential use in implantable devices 109 and in inex pensive screening devices based on printed electronics. 43 Self -powered biosensors, however, produce relatively low power densities and have low open circuit potentials that prevent them f rom real lif e applications where the generated power should be suf f icient f or measurements and an analytical signal transmission.…”

Section: Mmobilisation F Rom Organic Solventmentioning

confidence: 99%

Facilitating electron transfer in bioelectrocatalytic systems

Sekretaryova¹

2016

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During the course of the research underlying this thesis, Alina Sekretaryova was enrolled in Forum Scientium, a multidisciplinary doctoral programme at Linköping University, Sweden Alina Sekretaryova, 2016, unless otherwise noted. Cover design by Alina Sekretaryova Linköping studies in science and technology Dissertation No. 1738 Printed in Sweden by LiU-Tryck, Linköping, Sweden, 2016 iii ABSTRACT Bioelectrocatalytic systems are based on biological entities, such as enzymes, whole cells, parts of cells or tissues, which catalyse electrochemical processes that involve the interaction between chemical change and electrical energy. In all cases, enzymes, isolated or residing inside cells or part of cells, implement biocatalysis. Electron transfer phenomena, within the protein molecules and between biological redox systems and electronics, enable the development of various bioelectrocatalytic systems, which can be used both for fundamental investigations of enzymatic biological processes by electrochemical methods and for applied purposes, such as power generation, bioremediation, chemical synthesis and biosensing.Electrical communication between the biocatalysts redox centre and an electrode is essential for the functioning of the system. This can be established using two main mechanisms: indirect electron transfer and direct electron transfer. The efficiency of the electron transfer influences important parameters such as the turnover rate of the biocatalyst, the generated current density and partially the stability of the system. These in turn determine the response time, sensitivity, detection limit and operational stability of biosensors or the power densities and current output of biofuel cells, and hence they should be carefully considered when designing bioelectrocatalytic systems.This thesis focuses on approaches that facilitate electron transfer in bioelectrocatalytic systems based on mediated and direct electron transfer mechanisms. Both fundamental aspects of electron transfer in bioelectrocatalytic systems and applications of such systems for biosensing and power generation are considered. First, a new hydrophobic mediator for oxidases, unsubstituted phenothiazine, and its improved electron transfer properties in comparison with commonly used mediators are discussed. Application of the mediator in electrochemical biosensors is demonstrated by glucose, lactate and cholesterol sensing. Utilisation of mediated biocatalytic cholesterol oxidation as the anodic reaction for the construction of a biofuel cell, acting as a power supply and an analytical device at the same time, is investigated as a "self-powered" biosensor. In addition, the enhancement of mediated bioelectrocatalysis by the employment of microelectrodes as a transducer is examined. The effect of surface roughness on the current response of the microelectrodes under conditions of convergent diffusion is considered. The applicability of the laccase-based system for total phenol analysis of weakly supported water is demonstrated. Finally, a...

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“…It is also a fuel for fuel cell applications. To develop electrocatalysts that are easily prepared and highly reliable for glucose biofuel cells 1,2 and glucose sensors is very attractive. Directly electrochemical oxidation of glucose at regular conductive surfaces is usually kinetically hindered.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Oxidation and Determination of Glucose Using Cyclic Voltammetry and a One‐step Prepared Nanoporous Gold Wire Electrode

Cheng

Chen

2013

J Chinese Chemical Soc

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A nanoporous gold wire electrode (NPGWE) was prepared using a published one-step method from a 0.3 M oxalic acid at room temperature. It was found in this study that the surface morphology, including the pore size and the width of the ligaments, and thus the surface roughness of the NPGWE could be easily manipulated by controlling the solution stirring rate. The NPGWE was used for the study of electrochemical oxidation and determination of glucose in 0.1 M NaOH using cyclic voltammetry. The effect of two potential interferences chloride ion and ascorbic acid was assessed. The electrode showed a linear range of glucose concentration from 0.5 mM to 10 mM with a detection limit of 8 mM.

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Biofuel Cells for Self‐Powered Electrochemical Biosensing and Logic Biosensing: A Review

Cited by 160 publications

References 59 publications

Review—Wearable Biofuel Cells: Past, Present and Future

Review—Wearable Biofuel Cells: Past, Present and Future

Facilitating electron transfer in bioelectrocatalytic systems

Electrochemical Oxidation and Determination of Glucose Using Cyclic Voltammetry and a One‐step Prepared Nanoporous Gold Wire Electrode

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