Dyeing and Functionalization of Wearable Silk Fibroin/Cellulose Composite by Nanocolloidal Array

A wearable silk fibroin/cellulose composite is reported. It is structurally dyed and functionalized by embedding three-dimensional (3D) or two-dimensional poly­(methyl methacrylate) and polystyrene nanocolloidal arrays to form opal and inverse opal silk methylcellulose photonic crystal films (SMPCF)...

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Bibliographic Details
Published in:ACS applied materials & interfaces 2019-10, Vol.11 (42), p.39163-39170
Main Authors: Yan, Dan, Qiu, Lili, Shea, Kenneth J, Meng, Zihui, Xue, Min
Format: Article
Language:English
Subjects:
Coloring Agents - chemistry
Fibroins - chemistry
Gases - chemistry
Humidity
Methylcellulose - chemistry
Microarray Analysis
Nanotechnology - methods
Solvents - chemistry
Volatile Organic Compounds - analysis
Water - analysis
Wearable Electronic Devices
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Summary:A wearable silk fibroin/cellulose composite is reported. It is structurally dyed and functionalized by embedding three-dimensional (3D) or two-dimensional poly­(methyl methacrylate) and polystyrene nanocolloidal arrays to form opal and inverse opal silk methylcellulose photonic crystal films (SMPCF). The brilliant color of SMPCF is utilized for naked-eye detection of humidity and a trace amount (0.02%) of H2O content in organic solvents. Volatile organic compounds gases of 5 types were detected. By alternately exposed to organic solvents of methanol, acetonitrile, acetone, ethanol, isopropanol, n-butanol, carbon tetrachloride, and toluene, 3D inverse opal SMPCF displayed an excellent sensing performance with instantaneously color changes from green to red. The organic solvent sensitive SMPCF are wearable by integrated into a rubber glove. This composite has the potential to be used in wearable real-time sensing materials.
ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.9b11576