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  1. Article

    Open Access

    Highly durable crack sensor integrated with silicone rubber cantilever for measuring cardiac contractility

    To date, numerous biosensing platforms have been developed for assessing drug-induced cardiac toxicity by measuring the change in contractile force of cardiomyocytes. However, these low sensitivity, low-throug...

    Dong-Su Kim, Yong Whan Choi, Arunkumar Shanmugasundaram in Nature Communications (2020)

  2. Article

    Open Access

    Nature-inspired rollable electronics

    Inspired by the rolling mechanism of the proboscis of a butterfly, rollable electronics that can be rolled and unrolled to a great extent on demand are developed. Generally, electronic devices that are attache...

    Gunhee Lee, Yong Whan Choi, Taemin Lee, Kyung Seob Lim, Jooyeon Shin in NPG Asia Materials (2019)

  3. No Access

    Article

    Efficient Microfluidic Power Generator Based on Interaction between DI Water and Hydrophobic-Channel Surface

    The fabrication of power generators utilized by streaming potential has been attracting profound interests for various applications such as wearable healthcare and self-powered micro/nano systems. So far, stre...

    Yong Whan Choi, Segeun Jang, Myung-Suk Chun in International Journal of Precision Enginee… (2018)

  4. Article

    Open Access

    Ultra-sensitive Pressure sensor based on guided straight mechanical cracks

    Recently, a mechanical crack-based strain sensor with high sensitivity was proposed by producing free cracks via bending metal coated film with a known curvature. To further enhance sensitivity and controllabi...

    Yong Whan Choi, Daeshik Kang, Peter V. Pikhitsa, Taemin Lee in Scientific Reports (2017)

  5. No Access

    Article

    Ultrasensitive mechanical crack-based sensor inspired by the spider sensory system

    A mechanical crack-based sensor inspired by the mechanism spiders use to sense minute variations in stress offers ultrahigh sensitivity to pressure and vibration and can easily be mounted on human skin for the...

    Daeshik Kang, Peter V. Pikhitsa, Yong Whan Choi, Chanseok Lee, Sung Soo Shin in Nature (2014)