Power-on-Skin: Energy Generation from Sweat-Eating Bacteria for Self-Powered Electronic Skins

皮肤供电：通过食汗细菌产生能量，用于自供电电子皮肤

• 批准号: 1920979
• 负责人: Seokheun Choi
• 金额: $ 45.26万
• 依托单位: SUNY at Binghamton
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-06-01 至 2023-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1920979&HistoricalAwards=false
• 关键词: Power; Skin; Energy; Generation; Sweat

Electronic skins or 'e-skins' have recently emerged as a novel platform for electronics, taking on more important roles in health diagnostics, therapeutics, and monitoring. Stand-alone and self-sustained e-skins are essential to providing reliable, effective and sometimes life-saving functions. A stable power supply is the most critical factor in developing practical e-skins because the performance of their potential applications depends significantly on power availability. Thus, a realistic and accessible power source is urgently needed for a next-generation of smart, stand-alone, always-on e-skin systems. This is a challenge because human skin intimately integrated with e-skins is an extremely harsh environment for power generation. Skin is cool, dry, acidic and lacks potential energy sources. The overall objective of this proposal is to create the ability to generate an innovative, practical, and longstanding power from human sweat, which is one of the few available energy resources on the skin, by using the metabolisms of sweat-eating bacteria including human skin microorganisms or ammonia-oxidizing microorganisms. Given that the total non-human microbial cells inhabiting in and on our bodies outnumber the human cells by at least a factor of 10, the direct use of the microbial cells to produce power is conceivable for e-skins. Findings will first be disseminated within the discipline through local and international conferences and journal publications; then they will be distributed through educational venues maximizing the project's reach and impact. The project will train graduate students and outcomes will be integrated into post-secondary courses and K-12 outreach activities.This project will establish an innovative strategy to revolutionize power generation on human skin, delivering on-chip energy to the next generation of e-skin paradigm. The proposed sweat-powered batteries will be based on microbial fuel cells (MFCs), exploiting sweat-eating bacteria including human skin-inhabiting or ammonia-oxidizing microorganisms as a biocatalyst to transform the chemical energy of sweat into electrical power through bacterial metabolism. A thin, soft, flexible MFC will be pre-inoculated with selected electrogenic (or electron-producing) sweat-eating bacteria and will operate with human sweat, delivered by an integrated battery-free skin-interfaced system. The two-fold central hypothesis is that (i) some sweat-eating bacteria are capable of extracellular electron transfer and act as a biocatalyst in the microbial fuel cell device to produce electrical power, and (ii) those microorganisms can feed off the human sweat including ammonia and other organic substances for constant and sustaining bioelectricity generation. The immediate potential benefits of the proposed research are that (a) the project will develop a skin-mountable bacteria-powered battery system and establish fundamental knowledge critical to increase its performance, (b) the work will promote and accelerate the discovery and characterization of electrogenically active sweat-eating microorganisms, and (c) it will also create a novel skin-interfaced microfluidic system for sweat collection, delivery and storage to drive the integrated bacteria-powered battery. (d) Finally, this project will allow the microbial fuel cell technology to find more realizable applications as "biopower-on-skin" enables an entirely new area of energy harvesting research.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

电子皮肤或“电子皮肤”最近已经成为一种新型的电子平台，在健康诊断、治疗和监测方面发挥着更重要的作用。独立和自我维持的电子皮肤对于提供可靠，有效，有时甚至是救生功能至关重要。稳定的电源供应是开发实用电子皮肤的最关键因素，因为其潜在应用的性能在很大程度上取决于电源供应。因此，下一代智能、独立、始终在线的电子皮肤系统迫切需要一种现实且可访问的电源。这是一个挑战，因为与电子皮肤紧密结合的人类皮肤对于发电来说是极其恶劣的环境。皮肤凉爽，干燥，酸性，缺乏潜在的能量来源。该提案的总体目标是通过使用包括人类皮肤微生物或氨氧化微生物在内的食汗细菌的代谢，创造从人类汗液产生创新、实用和长期动力的能力，人类汗液是皮肤上为数不多的可用能源之一。考虑到居住在我们身体内部和表面的非人类微生物细胞总数至少是人类细胞的10倍，直接使用微生物细胞来产生电力对于电子皮肤来说是可以想象的。调查结果将首先通过当地和国际会议以及期刊出版物在学科内传播;然后通过教育场所传播，最大限度地扩大项目的覆盖面和影响。该项目将培训研究生，其成果将被纳入中学后课程和K-12推广活动。该项目将建立一个创新战略，彻底改变人类皮肤发电，为下一代电子皮肤范例提供芯片能量。拟议的汗液动力电池将基于微生物燃料电池（MFC），利用包括人类皮肤栖息或氨氧化微生物在内的食汗细菌作为生物催化剂，通过细菌代谢将汗液的化学能转化为电能。一个薄的，柔软的，灵活的MFC将预先接种选定的产电（或产生电子）的食汗细菌，并将与人类的汗水，由一个集成的无电池皮肤接口系统提供。双重中心假设是：（i）一些食汗细菌能够进行细胞外电子转移，并在微生物燃料电池装置中充当生物催化剂以产生电力，以及（ii）这些微生物可以以人类汗液为食，包括氨和其他有机物质，用于恒定和持续的生物发电。拟议研究的直接潜在好处是：（a）该项目将开发一种可贴在皮肤上的细菌供电电池系统，并建立对提高其性能至关重要的基础知识，（B）这项工作将促进和加速生电活性食汗微生物的发现和表征，以及（c）它还将创建一种用于汗液收集的新型皮肤界面微流体系统，运输和储存，以驱动集成的细菌动力电池。(d)最后，该项目将使微生物燃料电池技术找到更多可实现的应用，因为“皮肤上的生物能源”使能量收集研究的一个全新领域成为可能。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Biogenic Palladium Nanoparticles for Improving Bioelectricity Generation in Microbial Fuel Cells

• DOI: 10.1109/mems46641.2020.9056268
• 发表时间: 2020-01
• 期刊: 2020 IEEE 33rd International Conference on Micro Electro Mechanical Systems (MEMS)
• 作者: Mehdi Tahernia;M. Mohammadifar;S. Feng;Seokheun Choi

PEDOT:PSS/MnO2/CNT Ternary Nanocomposite Anodes for Supercapacitive Energy Storage in Cyanobacterial Biophotovoltaics

• DOI: 10.1021/acsaem.0c02054
• 发表时间: 2020-10-26
• 期刊: ACS APPLIED ENERGY MATERIALS
• 影响因子: 6.4
• 作者: Liu, Lin;Choi, Seokheun
• 通讯作者: Choi, Seokheun

3-D PRINTED REDOX-ACTIVE ORGANIC ELECTRODES TO BRIDGE ACROSS BIOLOGY AND ELECTRONICS

3D 打印氧化还原活性有机电极连接生物学和电子学

• 发表时间: 2022
• 期刊: Technical digest SolidState Sensor Actuator and Microsystems Workshop
• 作者: Elhadad, Anwar;Choi, Seokheun
• 通讯作者: Choi, Seokheun

A Biobattery Capsule for Ingestible Electronics in the Small Intestine: Biopower Production from Intestinal Fluids Activated Germination of Exoelectrogenic Bacterial Endospores

• DOI: 10.1002/aenm.202202581
• 发表时间: 2022-11
• 期刊: Advanced Energy Materials
• 影响因子: 27.8
• 作者: Maryam Rezaie;Z. Rafiee;Seokheun Choi

A wearable, disposable paper-based self-charging power system integrating sweat-driven microbial energy harvesting and energy storage devices

• DOI: 10.1016/j.nanoen.2022.107923
• 发表时间: 2022-10-26
• 期刊: NANO ENERGY
• 影响因子: 17.6
• 作者: Gao, Yang;Rezaie, Maryam;Choi, Seokheun
• 通讯作者: Choi, Seokheun