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Jeong, Hoon Eui
Multiscale Biomimetics & Manufacturing Lab
Research Interests
  • Biomimetics
  • Multiscale manufacturing
  • Micro/nanofabrication

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Colorimetric Sensor Based on Hydroxypropyl Cellulose for Wide Temperature Sensing Range

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dc.contributor.author Yi, Hoon ko
dc.contributor.author Lee, Sang-Hyeon ko
dc.contributor.author Kim, Dana ko
dc.contributor.author Jeong, Hoon Eui ko
dc.contributor.author Jeong, Changyoon ko
dc.date.available 2022-03-08T00:01:57Z -
dc.date.created 2022-03-03 ko
dc.date.issued 2022-02 ko
dc.identifier.citation SENSORS, v.22, no.3, pp.886 ko
dc.identifier.issn 1424-8220 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/57372 -
dc.description.abstract Recently, temperature monitoring with practical colorimetric sensors has been highlighted because they can directly visualize the temperature of surfaces without any power sources or electrical transducing systems. Accordingly, several colorimetric sensors that convert the temperature change into visible color alteration through various physical and chemical mechanisms have been proposed. However, the colorimetric temperature sensors that can be used at subzero temperatures and detect a wide range of temperatures have not been sufficiently explored. Here, we present a colorimetric sensory system that can detect and visualize a wide range of temperatures, even at a temperature below 0 degrees C. This system was developed with easily affordable materials via a simple fabrication method. The sensory system is mainly fabricated using hydroxypropyl cellulose (HPC) and ethylene glycol as the coolant. In this system, HPC can self-assemble into a temperature-responsive cholesteric liquid crystalline mesophase, and ethylene glycol can prevent the mesophase from freezing at low temperatures. The colorimetric sensory system can quantitatively visualize the temperature and show repeatability in the temperature change from -20 to 25 degrees C. This simple and reliable sensory system has great potential as a temperature-monitoring system for structures exposed to real environments. ko
dc.language 영어 ko
dc.publisher MDPI ko
dc.title Colorimetric Sensor Based on Hydroxypropyl Cellulose for Wide Temperature Sensing Range ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85123300009 ko
dc.identifier.wosid 000756484200001 ko
dc.type.rims ART ko
dc.identifier.doi 10.3390/s22030886 ko
dc.identifier.url https://www.mdpi.com/1424-8220/22/3/886 ko
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