Miyamoto, Akihito

写真a

Affiliation

School of Medicine, Department of Dermatology (Shinanomachi)

Position

Project Assistant Professor (Non-tenured)/Project Research Associate (Non-tenured)/Project Instructor (Non-tenured)

 

Papers 【 Display / hide

  • Highly Precise, Continuous, Long-Term Monitoring of Skin Electrical Resistance by Nanomesh Electrodes

    Miyamoto A., Kawasaki H., Lee S., Yokota T., Amagai M., Someya T.

    Advanced Healthcare Materials (Advanced Healthcare Materials)  11 ( 10 )  2022.05

    ISSN  21922640

     View Summary

    The transepidermal water loss has been widely used as a method for directly evaluating the barrier function of the stratum corneum of the skin. However, transepidermal water loss could not be measured continuously for a long period of time, and there were no reports of continuous monitoring of skin barrier functions. Here, a method is reported to continuously monitor the skin electrical resistance by nanomesh electrodes for a long period of time while maintaining the natural skin condition that does not inhibit water evaporation. Simultaneous measurements of the skin electrical resistance by nanomesh electrodes and transepidermal water loss exhibits a linear fit with a high negative correlation. Furthermore, dynamics of skin physiological functions are successfully visualized by monitoring of the skin electrical resistance by nanomesh electrodes for 30 h in daily life.

  • Electronic functional member and strain sensor

    T Someya, A Miyamoto, Y Wang, Y Matsuba, I Kawashima

    US Patent App. 17/442,787  2022

  • Highly Precise, Continuous, Long‐Term Monitoring of Skin Electrical Resistance by Nanomesh Electrodes

    A Miyamoto, H Kawasaki, S Lee, T Yokota, M Amagai, T Someya

    Advanced Healthcare Materials 11 (10), 2102425  2022

  • Electronic functional member, method for manufacturing same, and biological measurement sensor

    T Someya, A Miyamoto, Y Wang, S Lee, S Nagai, I Kawashima

    US Patent App. 17/436,251  2022

  • Skin impedance measurements with nanomesh electrodes for monitoring skin hydration

    R Matsukawa, A Miyamoto, T Yokota, T Someya

    Advanced Healthcare Materials 9 (22), 2001322 (Advanced Healthcare Materials)  9 ( 22 )  2020.11

    ISSN  21922640

     View Summary

    The importance of continuous monitoring of skin hydration in daily life, to aid in the diagnosis of skin diseases, is rising. Electrodes that can be worn directly on the skin are attracting attention as an effective means. However, they should not inhibit natural water evaporation from the skin and should not cause inflammation or irritation even if they are attached to the body for long periods of time. In this study, nanomesh electrodes that have previously been reported to exhibit high biocompatibility are also found to exhibit high water vapor permeability, resulting in properties that prevent skin dampness. Furthermore, the skin impedance measured using nanomesh electrodes is found to correlate with the hydration level of skin measured using existing medical equipment. This study provides a new approach to measure skin hydration in conditions close to bare skin.

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