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<p>Self-powered technology is an emerging transformative force for the next generation of medical devices. These are the systems/sensors that can harvest energy from their environment such as mechanical vibrations, body movement, airflow, or thermal gradients—and use it to power themselves continuously. This opens up a new paradigm for the sensors systems. Breathing is a very subtle process which is continuously happening in all the living animals. Here we have reported a self-powered breath sensor that can detect the breathing pattern while continuously harvesting energy from the breath. Here we have prepared a nanocomposite of reduced graphene oxide, Gold and Barium titanate. This Nano composite based sensor generated maximum capacitance of 100 nF for exhale breath sensing with ultrafast response time of 6.7&#xa0;ms and recovery time of 1.3&#xa0;s. The sensor generates a power of 6.48 nano watts per breath. This rGO/Au/BaTiO<sub>3</sub> based self-powered exhaled breath sensor has the potential to be used in practical biomedical devices due to its accurate consistent and stable response.</p>

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rGO/Au/BaTiO3 nano composite based self-powered breath sensor

  • 期刊论文

  • 发表日期：

    2026年5月9日

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  • Amruta D. Bang,
  • Vandana Inamdar,
  • Vaishali Ingale,
  • Anisha B. Patil,
  • Parag V. Adhyapak

摘要

Self-powered technology is an emerging transformative force for the next generation of medical devices. These are the systems/sensors that can harvest energy from their environment such as mechanical vibrations, body movement, airflow, or thermal gradients—and use it to power themselves continuously. This opens up a new paradigm for the sensors systems. Breathing is a very subtle process which is continuously happening in all the living animals. Here we have reported a self-powered breath sensor that can detect the breathing pattern while continuously harvesting energy from the breath. Here we have prepared a nanocomposite of reduced graphene oxide, Gold and Barium titanate. This Nano composite based sensor generated maximum capacitance of 100 nF for exhale breath sensing with ultrafast response time of 6.7 ms and recovery time of 1.3 s. The sensor generates a power of 6.48 nano watts per breath. This rGO/Au/BaTiO3 based self-powered exhaled breath sensor has the potential to be used in practical biomedical devices due to its accurate consistent and stable response.