期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 23, 页码 12702-12707出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b01251
关键词
piezoelectricity; peptides; piezoresponse force microscopy; hydrogels; biomaterials
资金
- European Commission within FP7Marie Curie Initial Training Network Nanomotion [290158]
- NANOREMEDIES under Cycle 5 of the Programme for Research in Third Level Institutions
- European Regional Development Fund
- Science Foundation Ireland [SFI07/IN1/B931]
Fibrous peptide networks, such as the structural framework of self-assembled fluorenylmethyloxycarbonyl diphenylalanine (Fmoc-FF) nanofibrils, have mechanical properties that could successfully mimic natural tissues, making them promising materials for tissue engineering scaffolds. These nanomaterials have been determined to exhibit shear piezoelectricity using piezoresponse force microscopy, as previously reported for FF nanotubes. Structural analyses of Fmoc-FF nanofibrils suggest that the observed piezoelectric response may result from the noncentrosymmetric nature of an underlying beta-sheet topology. The observed piezoelectricity of Fmoc-FF fibrous networks is advantageous for a range of biomedical applications where electrical or mechanical stimuli are required.
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