Development of graphene-based enzymatic biofuel cells: A minireview

Tang, Jing; Yan, Xiaomei; Engelbrekt, Christian; Ulstrup, Jens; Magner, Edmond; Xiao, Xinxin; Zhang, Jingdong

doi:10.1016/j.bioelechem.2020.107537

Cited by 39 publications

(16 citation statements)

References 144 publications

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“…[68] Usually, carbon-based nanomaterials exhibit superior electroconductivity, good mechanical strength, good biocompatibility, as well as large specific surface areas. [69] Integrating conductive carbon-based nanomaterials with flexible and stretchable substrates (e.g., polymer films, elastomers, hydrogels) is a well-accepted method to fabricate soft electrodes. [70] By modifying a flexible carbon cloth (CC) with MgOtemplated porous carbon (MgOC), and immobilizing enzymes and mediators, Tsujimura and co-workers obtained a flexible lactate BFC with a maximum power density of 4.3 mW cm -2 at a lactate concentration of 300 × 10 −3 m. [71] Similarly, the same group fabricated a glucose w-BFC based on MgOC-CC electrodes, yielding a maximum output power density of 2 mW cm -2 at 0.4 V in an electrolyte containing 1 m glucose.…”

Section: Carbon Nanomaterial-based Electrodesmentioning

confidence: 99%

Wearable Biofuel Cells: Advances from Fabrication to Application

Zhang

Kjøniksen

et al. 2021

Adv Funct Materials

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The booming field of wearable devices has nourished progress in developing multifunctional wearable energy sources that can withstand deformations while maintaining their electrochemical functions. Unlike energy storage systems such as rechargeable batteries and supercapacitors, wearable biofuel cells (w-BFCs) generate green electricity from energy-dense carbon-neutral fuels via highly efficient bioelectrochemical reactions, delivering excellent biocompatibility, remarkable environmental sustainability, and exceptional capability of miniaturization. These desirable merits give w-BFCs great potential in the field of wearable applications. Moreover, emerging studies of w-BFCs in self-powered biosensing, controlled drug delivery, and wound dressings have greatly expanded their possible fields of application. Recent progress and strategies to accomplish flexible and stretchable w-BFCs are summarized here. Novel materials and configurations with tailored features that can be employed to fabricate w-BFCs are elaborated and discussed. Current applications and near-future applications of w-BFCs in health-monitoring and medical treatment fields are outlined. Furthermore, challenges and perspectives regarding this emerging field of materials science and engineering are also emphasized.

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Section: Carbon Nanomaterial-based Electrodesmentioning

confidence: 99%

Wearable Biofuel Cells: Advances from Fabrication to Application

Zhang

Kjøniksen

et al. 2021

Adv Funct Materials

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“…To avoid the loss of electrochemical active area and irreversible π-π stacking aggregation, graphene is generally combined with different nanomaterials (e.g., gold nanoparticles, polyaniline, carbon nanotubes, chitosan, Nafion, methylene green, and so on) to enhance the sensitivity of detection [71]. Recently, a graphene thionine gold nanoparticles (AuNP) composite material was used as a paper-based electrochemical immunosensor for the detection of the cancer antigen 125, a biomarker related to ovarian cancer [72].…”

Section: Graphenementioning

confidence: 99%

Biosensors—Recent Advances and Future Challenges in Electrode Materials

Otero

Magner

2020

Sensors

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Electrochemical biosensors benefit from the simplicity, sensitivity, and rapid response of electroanalytical devices coupled with the selectivity of biorecognition molecules. The implementation of electrochemical biosensors in a clinical analysis can provide a sensitive and rapid response for the analysis of biomarkers, with the most successful being glucose sensors for diabetes patients. This review summarizes recent work on the use of structured materials such as nanoporous metals, graphene, carbon nanotubes, and ordered mesoporous carbon for biosensing applications. We also describe the use of additive manufacturing (AM) and review recent progress and challenges for the use of AM in biosensing applications.

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“…[1][2][3][4] LRET is often accompanied by features such as coupled proton electron transfer, [5][6][7][8] "gating", [3,4,9] and cooperative effects among different charge transfer steps. [9,10] The fundamental LRET phenomenon in large redox metalloprotein function is broadly understood, and exploited for example in electrochemical biosensors [11,12] and biofuel cells, [13][14][15] but conceptual and theoretical challenges remain and new challenges continue to emerge.…”

Section: Introductionmentioning

confidence: 99%

Voltammetry and Single‐Molecule In Situ Scanning Tunnelling Microscopy of the Redox Metalloenzyme Human Sulfite Oxidase

et al. 2021

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Human sulfite oxidase (hSO) is a homodimeric two‐domain enzyme central in the biological sulfur cycle. A pyranopterin molybdenum cofactor (Moco) is the catalytic site and a heme b5 group located in the N‐terminal domain. The two domains are connected by a flexible linker region. Electrons produced at the Moco in sulfite oxidation, are relayed via heme b5 to electron acceptors or an electrode surface. Inter‐domain conformational changes between an open and a closed enzyme conformation, allowing “gated” electron transfer has been suggested. We first recorded cyclic voltammetry (CV) of hSO on single‐crystal Au(111)‐electrode surfaces modified by self‐assembled monolayers (SAMs) both of a short rigid thiol, cysteamine and of a longer structurally flexible thiol, ω‐amino‐octanethiol (AOT). hSO on cysteamine SAMs displays a well‐defined pair of voltammetric peaks around −0.207 V vs. SCE in the absence of sulfite substrate, but no electrocatalysis. hSO on AOT SAMs displays well‐defined electrocatalysis, but only “fair” quality voltammetry in the absence of sulfite. We recorded next in situ scanning tunnelling spectroscopy (STS) of hSO on AOT modified Au(111)‐electrodes, disclosing, a 2–5 % surface coverage of strong molecular scale contrasts, assigned to single hSO molecules, notably with no contrast difference in the absence and presence of sulfite. In situ STS corroborated this observation with a sigmoidal tunnelling current/overpotential correlation.

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Development of graphene-based enzymatic biofuel cells: A minireview

Cited by 39 publications

References 144 publications

Wearable Biofuel Cells: Advances from Fabrication to Application

Wearable Biofuel Cells: Advances from Fabrication to Application

Biosensors—Recent Advances and Future Challenges in Electrode Materials

Voltammetry and Single‐Molecule In Situ Scanning Tunnelling Microscopy of the Redox Metalloenzyme Human Sulfite Oxidase

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