Enhanced Stability and Mechanical Properties of a Graphene–Protein Nanocomposite Film by a Facile Non-Covalent Self-Assembly Approach.
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| Title: | Enhanced Stability and Mechanical Properties of a Graphene–Protein Nanocomposite Film by a Facile Non-Covalent Self-Assembly Approach. |
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| Authors: | Du, Chunbao1 (AUTHOR) duchunbao218@126.com, Du, Ting1 (AUTHOR) duting102@126.com, Zhou, Joey Tianyi2 (AUTHOR) joey_zhou@ihpc.a-star.edu.sg, Zhu, Yanan1 (AUTHOR) zhuyanan@xsyu.edu.cn, Jia, Xingang1 (AUTHOR) jiaxingang76@xsyu.edu.cn, Cheng, Yuan3,4 (AUTHOR) yuan.cheng@monash.edu |
| Source: | Nanomaterials (2079-4991). Apr2022, Vol. 12 Issue 7, p1181-1181. 12p. |
| Subjects: | Elastic modulus, Mechanical ability, Serum albumin, Graphene oxide, Thermal properties |
| Abstract: | Graphene-based nanocomposite films (NCFs) are in high demand due to their superior photoelectric and thermal properties, but their stability and mechanical properties form a bottleneck. Herein, a facile approach was used to prepare nacre-mimetic NCFs through the non-covalent self-assembly of graphene oxide (GO) and biocompatible proteins. Various characterization techniques were employed to characterize the as-prepared NCFs and to track the interactions between GO and proteins. The conformational changes of various proteins induced by GO determined the film-forming ability of NCFs, and the binding of bull serum albumin (BSA)/hemoglobin (HB) on GO's surface was beneficial for improving the stability of as-prepared NCFs. Compared with the GO film without any additive, the indentation hardness and equivalent elastic modulus could be improved by 50.0% and 68.6% for GO–BSA NCF; and 100% and 87.5% for GO–HB NCF. Our strategy should be facile and effective for fabricating well-designed bio-nanocomposites for universal functional applications. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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