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Hydrochromic conjugated polymers for human sweat pore mapping

Title
Hydrochromic conjugated polymers for human sweat pore mapping
Author
김회율
Keywords
VOLATILE ORGANIC-COMPOUNDS; CHEMICAL SENSORS; LATENT FINGERPRINTS; POLYDIACETYLENE; PROTEINS; POLYMERIZATION; VISUALIZATION; TEMPERATURE; FINGERMARKS; DIACETYLENE
Issue Date
2014-04
Publisher
Nature Publishing Group
Citation
Nature Communications, 2014, 5
Abstract
Hydrochromic materials have been actively investigated in the context of humidity sensing and measuring water contents in organic solvents. Here we report a sensor system that undergoes a brilliant blue-to-red colour transition as well as 'Turn-On' fluorescence upon exposure to water. Introduction of a hygroscopic element into a supramolecularly assembled polydiacetylene results in a hydrochromic conjugated polymer that is rapidly responsive (< 20 mu s), spin-coatable and inkjet-compatible. Importantly, the hydrochromic sensor is found to be suitable for mapping human sweat pores. The exceedingly small quantities (sub-nanolitre) of water secreted from sweat pores are sufficient to promote an instantaneous colorimetric transition of the polymer. As a result, the sensor can be used to construct a precise map of active sweat pores on fingertips. The sensor technology, developed in this study, has the potential of serving as new method for fingerprint analysis and for the clinical diagnosis of malfunctioning sweat pores
URI
https://www.nature.com/articles/ncomms4736
ISSN
2041-1723
DOI
10.1038/ncomms4736
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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