Microbial biofilm-based hydrovoltaic pressure sensor with ultrahigh sensitivity for self-powered flexible electronics

IF 10.5 1区生物学 Q1 BIOPHYSICS Biosensors and Bioelectronics Pub Date : 2025-01-31 DOI:10.1016/j.bios.2025.117220

Qichang Hu , Minhui Hong , Zhao Wang , Xiuyu Lin , Wei Wang , Wei Zheng , Shungui Zhou

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Abstract

Developing the integration of self-powered detection with both dynamic and static forces is a significant challenge in promoting intelligent technology systems. Herein, we introduce an innovative microbial biofilm based-hydrovoltaic pressure sensor (mBio-HPS) using whole-cell Geobacter sulfurreducens, which successfully combines self-powered functionality and static pressure detection within a single device. The mBio-HPS exhibited a sensitivity of up to 8968.7 kPa⁻¹ (at 1 kPa) in the 0.4–25 kPa regime without external power supply. Moreover, the mBio-HPS demonstrated the fastest reported response speed to date, with a remarkable response time of 112.5 μs, enabling effective detection of both dynamic and static forces while maintaining stability during an extensive 30,000 s testing. Experimental validation using a sensor-integrated array showed its outstanding real-time detection capabilities for both dynamic and static pressure, highlighting its outstanding potential for electronic skin applications. This unprecedented concept of a hydrovoltaic pressure sensor also offers new insights into the development of high-performance self-powered electronics.

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基于微生物生物膜的超高灵敏度自供电柔性电子产品水压传感器

开发动态和静态力自供电检测的集成是促进智能技术系统的重大挑战。在此，我们介绍了一种创新的微生物生物膜基水力发电压力传感器（mBio-HPS），该传感器使用全细胞硫还原Geobacter sulphreducens，成功地将自供电功能和静压检测结合在一个设备中。mBio-HPS在没有外部电源的0.4-25 kPa范围内的灵敏度高达8968.7 kPa （1 kPa时）。此外，mBio-HPS的响应速度是迄今为止报道的最快的，其响应时间为112.5 μs，能够有效地检测动态和静态力，同时在广泛的30,000 s测试中保持稳定性。使用传感器集成阵列进行的实验验证表明，该传感器具有动态和静态压力的实时检测能力，突出了其在电子皮肤应用中的巨大潜力。这种前所未有的水力发电压力传感器概念也为高性能自供电电子产品的发展提供了新的见解。

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来源期刊

Biosensors and Bioelectronics 工程技术-电化学

CiteScore

20.80

自引率

7.10%

发文量

1006

审稿时长

29 days

期刊介绍： Biosensors & Bioelectronics, along with its open access companion journal Biosensors & Bioelectronics: X, is the leading international publication in the field of biosensors and bioelectronics. It covers research, design, development, and application of biosensors, which are analytical devices incorporating biological materials with physicochemical transducers. These devices, including sensors, DNA chips, electronic noses, and lab-on-a-chip, produce digital signals proportional to specific analytes. Examples include immunosensors and enzyme-based biosensors, applied in various fields such as medicine, environmental monitoring, and food industry. The journal also focuses on molecular and supramolecular structures for enhancing device performance.