Journal
ADVANCED MATERIALS
Volume 29, Issue 46, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201704569
Keywords
anti-counterfeiting; colloidal crystals; graphene; responsive; structural color
Categories
Funding
- National Science Foundation of China [21473029, 51522302, 21327902]
- NSAF Foundation of China [U1530260]
- National Science Foundation of Jiangsu [BK20140028]
- Program for New Century Excellent Talents in University
- Scientific Research Foundation of Southeast University
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As an important characteristic of many creatures, structural colors play a crucial role in the survival of organisms. Inspired by these features, an intelligent structural color material with a heterogeneous striped pattern and stimuli-responsivity by fast self-assembly of colloidal nanoparticles in capillaries with a certain diameter range are presented here. The width, spacing, color, and even combination of the structural color stripe patterns can be precisely tailored by adjusting the self-assembly parameters. Attractively, with the integration of a near-infrared (NIR) light responsive graphene hydrogel into the structural color stripe pattern, the materials are endowed with lightcontrolled reversible bending behavior with self-reporting color indication. It is demonstrated that the striped structural color materials can be used as NIR-light-triggered dynamic barcode labels for the anti-counterfeiting of different products. These features of the bioinspired structural color stripe pattern materials indicate their potential values for mimicking structural color organisms, which will find important applications in constructing intelligent sensors, anti-counterfeiting devices, and so
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