期刊
ADVANCED SCIENCE
卷 7, 期 18, 页码 -出版社
WILEY
DOI: 10.1002/advs.202000978
关键词
bacteriophages; colorimetric sensors; endocrine disrupting chemicals; thin-film coloration; volatile organic compounds
资金
- National Research Foundation of Korea (NRF) - Korean government (MSIP) [NRF-2017M3D1A1039288, NRF-2018R1A4A1025623, NRF-2018M3D1A1058997]
- GIST Research Institute (GRI) - GIST
- UEFISCDI [PN-III-P1-1.1-TE-2016-2147]
- NRF [NRF-2018H1A2A1060954]
- Ministry of Science, ICT & Future Planning, Republic of Korea [GIST-14] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- Ministry of Science & ICT (MSIT), Republic of Korea [GIST-09-16] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [2018H1A2A1060954, 10Z20130000004, 2018M3D1A1058997] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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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