Enzymatic fuel cells in a microfluidic environment: Status and opportunities. A mini review

Rewatkar, Prakash; Hitaishi, Vivek Pratap; Lojou, Élisabeth; Goel, Sanket

doi:10.1016/j.elecom.2019.106533

Cited by 32 publications

(14 citation statements)

References 52 publications

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“…In microfluidic devices, two streams move in parallel together at laminar flow without turbulent mixing at the interface. Laminar flow causes fractioning of the samples like ions through diffusion between a stream and an adjacent stream (Kenis et al, 1999;Kenis et al, 2000;Rewatkar et al, 2019a).…”

Section: Microfluidic Biofuel Cell Device Design and Working Principlesmentioning

confidence: 99%

Microfluidic Rapid Prototype Enzymatic Biofuel Cell Based on a Nanocomposite

et al. 2021

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Here, a low-cost glucose/O2 Y-shaped microfluidic biofuel cell was developed using a printed circuit board for microelectrode construction. A double-side tape based on the pressure-sensitive adhesive was used for microchannel fabrication. A nanocomposite that consisted of reduced graphene oxide gold nanoparticles (AuNPs), and poly neutral red connected to enzymes was applied on the copper electrode surface. The Aspergillus niger glucose oxidase enzyme and Mytheliophthora thermophile laccase were used to prepare the modified anodic and cathodic electrodes. Different procedures such as cyclic voltammetry scanning electron microscope coupled with energy-dispersive x-ray spectroscopy (EDX), and atomic force microscopy were used to scan the modified electrodes. SEM/EDX microanalysis displayed the structural and morphological properties of the proposed nanocomposite. The biofuel cell performance demonstrated a maximum power density of 36 μW cm−2, an open-circuit voltage of 0.5 V, and a flow rate of 50 μl min−1. The proposed rapid technique with RGO/AuNPs/PNR bioelectrodes is a good approach for finding low-cost microfluidic biofuel cells.

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Section: Microfluidic Biofuel Cell Device Design and Working Principlesmentioning

confidence: 99%

Microfluidic Rapid Prototype Enzymatic Biofuel Cell Based on a Nanocomposite

et al. 2021

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“…Enzymatic fuel cells have appeared as one of the ecofriendly energy-producing technology based on naturally accessible redox enzymes to utilize natural fuels (sugars, etc.) with high specificity and efficiency [1,[29][30][31][32]. However, many challenges persist hampering their wide spread use with cost-effectiveness.…”

Section: Stability Of the Biofuel Cell System And The Enzymatic Anodementioning

confidence: 99%

Development of Reasonably Stable Chitosan Based Proton Exchange Membranes for a Glucose Oxidase Based Enzymatic Biofuel Cell

Bahar

2019

Electroanalysis

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Chitosan based reasonably stable membranes were prepared as polymeric electrolyte and separator for enzymatic fuel cell applications. Glucose oxidase (GOx) bioanode centered biofuel cell with the developed chitosan membranes performed much better in stability with high current densities than that of the biofuel cell utilizing a 125 μ‐thick perfluorosulfonic acid‐type membrane (i. e. Nafion® 115). Proposed chitosan membrane structural stability was enhanced by employing cellulosic support materials and chemical crosslinking. The effects of pH, buffer type, buffer concentration, temperature on the manufactured chitosan membranes along with the biofuel cell system were investigated. The biofuel cell operation parameters were optimized for the current density and stability aspects and more than 3 mA cm−2 current density was acquired from the cell at optimum conditions. Operational half‐life of the chitosan membrane was found as higher than the half‐life of the GOx immobilized bioanode. Therefore, this result indicates that chitosan membrane structural stability was not a limiting issue for the biofuel cell lifespan.

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“…Specifically, for the oxidation of cholesterol (Chol) as a fuel, oxidase (ChOx) has been used, however, this enzyme tends to generate resistance to mass transfer, thus increasing activity loss [9,10]. Therefore, the replacement of this enzyme by abiotic catalysts, such as Pt, Pd, Ir, Rh, Os, and Ru, has been considered since these inhibit the poisoning generated by secondary products in the oxidation of organic molecules [11][12][13][14][15]. Nevertheless, one of the main disadvantages of these materials is their high cost and the decrease in catalytic loads [16].…”

Section: Introductionmentioning

confidence: 99%

Copper nanoparticles suitable for bifunctional cholesterol oxidation reaction: harvesting energy and sensor

Espinosa-Lagunes

Cruz

Vega-Azamar

et al. 2022

Mater Renew Sustain Energy

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This study reports the performance of simple low-cost synthesized bifunctional Cu/Cu2O nanoparticles (NPs) used as a catalyst for energy-harvesting applications through of a microfluidic fuel cell (µFC), and further, as cholesterol (Chol) sensor. TEM characterization of the NPs showed spheres between 4 and 10 nm, while XRD and XPS analysis confirmed the composition and preferential crystallographic plane of Cu/Cu2O. In addition, 25.26 m2 g−1 surface area was obtained, which is greater than those commercial materials. NPs showed high activity toward the cholesterol oxidation reaction when were used as a sensor, obtaining a linear interval between 0.5 and 1 mM and 850 µA mM−1 mg−1 of sensitivity and 8.9 µM limit of quantification LOQ. These values are comparable to results previously reported. Moreover, Cu/Cu2O NPs were used as anode in a µFC with 0.96 V of cell voltage and 6.5 mA cm−2 and 1.03 mW cm−2 of current and power density, respectively. This performance is the highest currently reported for cholesterol application as an alternative fuel, and the first one reported for a microfluidic fuel cell system as far as is known. Results showed that the obtained Cu-based NPs presented an excellent performance for the dual application both µFC and sensor, which has potential applications in biomedicine and as an alternative energy source.

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Enzymatic fuel cells in a microfluidic environment: Status and opportunities. A mini review

Cited by 32 publications

References 52 publications

Microfluidic Rapid Prototype Enzymatic Biofuel Cell Based on a Nanocomposite

Microfluidic Rapid Prototype Enzymatic Biofuel Cell Based on a Nanocomposite

Development of Reasonably Stable Chitosan Based Proton Exchange Membranes for a Glucose Oxidase Based Enzymatic Biofuel Cell

Copper nanoparticles suitable for bifunctional cholesterol oxidation reaction: harvesting energy and sensor

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