Large?Area Virus Coated Ultrathin Colorimetric Sensors with a Highly Lossy Resonant Promoter for Enhanced Chromaticity

ABSTRACT: 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. A large?area virus coated ultrathin colorimetric sensor with a highly lossy resonant promoter (HLRP) is developed. A dynamically responsive virus?based changeable coloring strategy with HLRP is an efficacious approach to fuse the advantages of strong resonant photonic structures and dynamically responsive materials. An ultrathin virus layer for rapid response to external stimuli displays colorimetric behavior on HLRP.

SUBMITTER: Yoo Y 

PROVIDER: S-EPMC7509654 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature