한빛사 논문
Young Jin Yoo†, Won-Geun Kim†, Joo Hwan Ko†, Yeong Jae Kim, Yujin Lee, Stefan G. Stanciu, Jong-Min Lee, Seungchul Kim, Jin-Woo Oh*, and Young Min Song*
Y. J. Yoo, J. H. Ko, Dr. Y. J. Kim, Prof. Y. M. Song
School of Electrical Engineering and Computer Science,
Gwangju Institute of Science and Technology,
Gwangju 61005, Republic of Korea
W.-G.Kim,Y.Lee
Department of Nano Fusion Technology,
Pusan National University,
Busan 46241, Republic of Korea
Prof. S. G. Stanciu
Center for Microscopy-Microanalysis and Information Processing,
Politehnica University Bucharest,
Bucharest 060042, Romania
Dr. J.-M. Lee
Research Center for Energy Convergence and Technology.
Pusan National University,
Busan 46241, Republic of Korea
Prof. S. Kim
Department of Optics and Mechatronics Engineering,
Pusan National University,
Busan 46241, Republic of Korea
Prof. J.-W. Oh
Department of Nano Fusion Technology,
Pusan National University,
Busan 46241, Republic of Korea
†Y.J.Y., W.-G.K., and J.H.K. contributed equally to this work.
*Corresponding author
Abstract
Acclimatable colors in response to environmental stimuli, which are naturally endowed with some living things, can provide an opportunity for humans to recognize hazardous substances without taking empirical risks. Despite efforts to create artificial responsive colors, realistic applications in everyday life require an immediate/distinct colorimetric realization with wide chromatic selectivity. A dynamically responsive virus (M‐13 phage)‐based changeable coloring strategy is presented with a highly lossy resonant promoter (HLRP). An ultrathin M‐13 phage layer for rapid response to external stimuli displays colorimetric behavior, even in its subtle swelling with strong resonances on HLRP, which is modeled using the complex effective refractive index. Optimal designs of HLRP for several material combinations allow selective chromatic responsivity from the corresponding wide color palette without modification of the dynamic responsive layer. As a practical demonstration, the spatially designed colorimetric indicator, which is insensitive/sensitive to external stimuli, provides an intuitive perception of environmental changes with hidden/revealed patterns. Furthermore, the proposed colorimetric sensor is tested by exposure to various volatile organic chemicals and endocrine disrupting chemicals for versatile detectability, and is fabricated in a wafer‐scale sample for large‐area scalability.
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