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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.
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]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
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  Data: Enhanced Stability and Mechanical Properties of a Graphene–Protein Nanocomposite Film by a Facile Non-Covalent Self-Assembly Approach.
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  Data: <searchLink fieldCode="AR" term="%22Du%2C+Chunbao%22">Du, Chunbao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> duchunbao218@126.com</i><br /><searchLink fieldCode="AR" term="%22Du%2C+Ting%22">Du, Ting</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> duting102@126.com</i><br /><searchLink fieldCode="AR" term="%22Zhou%2C+Joey+Tianyi%22">Zhou, Joey Tianyi</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> joey_zhou@ihpc.a-star.edu.sg</i><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Yanan%22">Zhu, Yanan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhuyanan@xsyu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Jia%2C+Xingang%22">Jia, Xingang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jiaxingang76@xsyu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Cheng%2C+Yuan%22">Cheng, Yuan</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<i> yuan.cheng@monash.edu</i>
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  Data: <searchLink fieldCode="JN" term="%22Nanomaterials+%282079-4991%29%22">Nanomaterials (2079-4991)</searchLink>. Apr2022, Vol. 12 Issue 7, p1181-1181. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Elastic+modulus%22">Elastic modulus</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+ability%22">Mechanical ability</searchLink><br /><searchLink fieldCode="DE" term="%22Serum+albumin%22">Serum albumin</searchLink><br /><searchLink fieldCode="DE" term="%22Graphene+oxide%22">Graphene oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+properties%22">Thermal properties</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: 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]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.3390/nano12071181
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 12
        StartPage: 1181
    Subjects:
      – SubjectFull: Elastic modulus
        Type: general
      – SubjectFull: Mechanical ability
        Type: general
      – SubjectFull: Serum albumin
        Type: general
      – SubjectFull: Graphene oxide
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      – SubjectFull: Thermal properties
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      – TitleFull: Enhanced Stability and Mechanical Properties of a Graphene–Protein Nanocomposite Film by a Facile Non-Covalent Self-Assembly Approach.
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            NameFull: Du, Chunbao
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            NameFull: Du, Ting
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            NameFull: Zhou, Joey Tianyi
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            NameFull: Zhu, Yanan
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            NameFull: Jia, Xingang
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              Text: Apr2022
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              Y: 2022
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