A flexible and wearable epidermal ethanol biofuel cell for on-body and real-time bioenergy harvesting from human sweat

Sun, Mimi; Gu, Yanan; Pei, Xinyi; Wang, Jingjuan; Liu, Jian; Ma, Chengbing; Bai, Jing; Zhou, Ming

doi:10.1016/j.nanoen.2021.106061

Cited by 77 publications

(62 citation statements)

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“…Abiotic and enzymatic fuel cells have been successfully demonstrated as wearable and implantable power solutions. [90,[94][95][96] Because of potential safety issues of using microorganisms with infectious risks, MFCs had not been considered as a proper power source for any of BSN applications other than simulated studies. However, given that the human body is inhabited by millions of microorganisms, [97,98] the direct use of those human microorganisms as a fully self-sustaining biocatalyst in the MFC will significantly reduce foreign-body response and can be more attractive than toxic abiotic fuel cells and the unstable enzymatic fuel cells.…”

Section: Human Microbial Fuel Cells For Body Sensor Network (Bsns)mentioning

confidence: 99%

Electrogenic Bacteria Promise New Opportunities for Powering, Sensing, and Synthesizing

Choi

2022

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Considerable research efforts into the promises of electrogenic bacteria and the commercial opportunities they present are attempting to identify potential feasible applications. Metabolic electrons from the bacteria enable electricity generation sufficient to power portable or small‐scale applications, while the quantifiable electric signal in a miniaturized device platform can be sensitive enough to monitor and respond to changes in environmental conditions. Nanomaterials produced by the electrogenic bacteria can offer an innovative bottom‐up biosynthetic approach to synergize bacterial electron transfer and create an effective coupling at the cell–electrode interface. Furthermore, electrogenic bacteria can revolutionize the field of bioelectronics by effectively interfacing electronics with microbes through extracellular electron transfer. Here, these new directions for the electrogenic bacteria and their recent integration with micro‐ and nanosystems are comprehensively discussed with specific attention toward distinct applications in the field of powering, sensing, and synthesizing. Furthermore, challenges of individual applications and strategies toward potential solutions are provided to offer valuable guidelines for practical implementation. Finally, the perspective and view on how the use of electrogenic bacteria can hold immeasurable promise for the development of future electronics and their applications are presented.

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Section: Human Microbial Fuel Cells For Body Sensor Network (Bsns)mentioning

confidence: 99%

Electrogenic Bacteria Promise New Opportunities for Powering, Sensing, and Synthesizing

Choi

2022

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“…The only alcoholic drink with pH 7.2 was the cocktail of cherry-raspberry-blackberry flavour, which exhibited good performance due to its content of sugars and alcohol (2.7 ± 0.081 mW/cm 2 ). A prospective use of the bi-enzymatic electrode incorporated in a Lab-on-a-Chip or flexible epidermal devices [49], where it can use different alcoholic beverages at different alcohol and glucose concentrations, presents alternative applications (detectors, quality and alcoholic content) for the alcoholic drinks industry.…”

Section: Performance Of the Microfuel Cell Using Alcoholic Beverage A...mentioning

confidence: 99%

Development of bioanode for versatile applications: microfuel cell system in the presence of alcohol and glucose

Ledesma‐García

Gurrola

Trejo-Arroyo

et al. 2022

Mater Renew Sustain Energy

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The purpose of this work is to develop a bioanode using the enzymes of glucose oxidase (GOx) and alcohol dehydrogenase (ADH) as catalysts to oxidised glucose and alcohol present in different beverages. The study was carried out using the covalent bonding method for both enzymes via the functionalization of carbon nanofibers for the formation of carboxyl groups that can form bonds with the amine groups of the enzyme, as well as using tetrabutylammonium bromide (TBAB) with Nafion. The optimum operation parameters of both enzymes (pH and temperature) were determined for the later evaluation in a microfluidic fuel cell. In addition, using the scanning electrochemical microscopy technique, a local study of enzymatic processes is used to demonstrate that the enzymes immobilized on the same electrode remain active. The evaluation of the microfluidic fuel cell was carried out using different solutions, 0.01 M glucose, 0.01 M ethanol and a mixture of 0.01 M glucose and 0.01 M ethanol, all in phosphate buffer solutions at pH 7, where it was possible to obtain a maximum performance of 5.07 ± 0.1 mW cm−2, and there was a significant increase in current density compared to non-composite solutions (glucose or ethanol). In addition, different alcoholic beverages were used to evaluate the versatility and adaptability of the bi-enzymatic anode electrode with the perspective use in Lab-on-a-Chip systems.

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“…The electronic skin could also selectively monitor physiological information such as urea, pH, and glucose, as well as body temperature and sweat characteristics in real-time. Unlike using human endogenous biofuels (glucose or lactate secreted by the human body) for power generation, another work reports a flexible portable epidermal biofuel cell based on human exogenous substances ( Sun et al, 2021a ). The device consists of two parts, one is a sweat transport microfluidic module for sampling, storage and excretion, the other part is a non-invasive real-time biological organism in situ generations of flexible ethanol/oxygen biofuel cell module.…”

Section: Intelligent Wearable Sensorsmentioning

confidence: 99%

Recent Progress in Intelligent Wearable Sensors for Health Monitoring and Wound Healing Based on Biofluids

Cheng

Zhou

et al. 2021

Front. Bioeng. Biotechnol.

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The intelligent wearable sensors promote the transformation of the health care from a traditional hospital-centered model to a personal portable device-centered model. There is an urgent need of real-time, multi-functional, and personalized monitoring of various biochemical target substances and signals based on the intelligent wearable sensors for health monitoring, especially wound healing. Under this background, this review article first reviews the outstanding progress in the development of intelligent, wearable sensors designed for continuous, real-time analysis, and monitoring of sweat, blood, interstitial fluid, tears, wound fluid, etc. Second, this paper reports the advanced status of intelligent wound monitoring sensors designed for wound diagnosis and treatment. The paper highlights some smart sensors to monitor target analytes in various wounds. Finally, this paper makes conservative recommendations regarding future development of intelligent wearable sensors.

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A flexible and wearable epidermal ethanol biofuel cell for on-body and real-time bioenergy harvesting from human sweat

Cited by 77 publications

References 50 publications

Electrogenic Bacteria Promise New Opportunities for Powering, Sensing, and Synthesizing

Electrogenic Bacteria Promise New Opportunities for Powering, Sensing, and Synthesizing

Development of bioanode for versatile applications: microfuel cell system in the presence of alcohol and glucose

Recent Progress in Intelligent Wearable Sensors for Health Monitoring and Wound Healing Based on Biofluids

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