| Title: | Large-Area Virus Coated Ultrathin Colorimetric Sensors with a Highly Lossy Resonant Promoter for Enhanced Chromaticity |
| Author(s): | Yoo YJ; Kim WG; Ko JH; Kim YJ; Lee Y; Stanciu SG; Lee JM; Kim S; Oh JW; Song YM; |
| Address: | School of Electrical Engineering and Computer Science Gwangju Institute of Science and Technology Gwangju 61005 Republic of Korea. Department of Nano Fusion Technology Pusan National University Busan 46241 Republic of Korea. Center for Microscopy-Microanalysis and Information Processing Politehnica University Bucharest Bucharest 060042 Romania. Research Center for Energy Convergence and Technology Pusan National University Busan 46241 Republic of Korea. Department of Optics and Mechatronics Engineering Pusan National University Busan 46241 Republic of Korea. Department of Nanoenergy Engineering Pusan National University Busan 46241 Republic of Korea. BK21 PLUS Nanoconvergence Technology Division Pusan National University Busan 46241 Republic of Korea. Anti-Viral Research Center Gwangju Institute of Science and Technology Gwangju 61005 Republic of Korea. AI Graduate School Gwangju Institute of Science and Technology Gwangju 61005 Republic of Korea |
| ISSN/ISBN: | 2198-3844 (Print) 2198-3844 (Electronic) 2198-3844 (Linking) |
| 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" |
| Keywords: | bacteriophages colorimetric sensors endocrine disrupting chemicals thin-film coloration volatile organic compounds; |
| Notes: | "PubMed-not-MEDLINEYoo, Young Jin Kim, Won-Geun Ko, Joo Hwan Kim, Yeong Jae Lee, Yujin Stanciu, Stefan G Lee, Jong-Min Kim, Seungchul Oh, Jin-Woo Song, Young Min eng Germany 2020/10/02 Adv Sci (Weinh). 2020 Jul 21; 7(18):2000978. doi: 10.1002/advs.202000978. eCollection 2020 Sep" |
