期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 45, 页码 25281-25288出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b07332
关键词
conducting polymer; biomaterials; silk; interpenetrating networks; electropolymerization; poly(pyrrole); poly(3,4-ethylenedioxythiophene); poly(hydroxymethyl-3,4-ethylenedioxythiophene)
资金
- Western Washington University, Research and Sponsored Programs at WWU
- M. J. Murdock Charitable Trust
- National Science Foundation [DMR-1411292]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1411292, 1057209] Funding Source: National Science Foundation
Flexible and conductive biocompatible materials are attractive candidates for a wide range of biomedical applications including implantable electrodes, tissue engineering, and controlled drug delivery. Here, we demonstrate that chemical and electrochemical polymerization techniques can be combined to create highly versatile silk-conducting polymer (silk-CP) composites with enhanced conductivity and electrochemical stability. Interpenetrating silk-CP composites were first generated via in situ deposition of polypyrrole during chemical polymerization of pyrrole. These composites were sufficiently conductive to serve as working electrodes for electropolymerization, which allowed an additional layer of CP to be deposited on the surface. This sequential method was applied to both 2D films and 3D sponge-like silk scaffolds, producing conductive materials with biomimetic architectures. Overall, this two-step technique expanded the range of available polymers and dopants suitable for the synthesis of mechanically robust, biocompatible, and highly conductive silk-based materials.
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