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Ag Nanometallic Surfaces for Self-Assembled Ordered Morphologies of Zein.

ABSTRACT: Nanometallic surfaces of Ag nanoparticles (NPs) catalyzed the self-aggregation behavior of zein in different ordered morphologies such as cubes, rectangles, and bars. This was studied in a ternary in situ reaction (AgNO₃ + zein + water), where zein performed the reduction as well as stabilization of Ag NPs. This reaction produced small Ag NPs of less than 10 nm predominantly bound with {111} crystal planes, which attracted the surface adsorption of zein. Surface-adsorbed zein initiated the protein seeding and converted the tertiary structure of protein into open ?-pleated structure with aqueous exposed hydrophobic domains. A layered deposition of ?-pleats on different crystal planes of Ag NPs derived them to nearly monodispersed cubic morphologies. The mechanistic aspects of self-aggregation of zein in the presence of nanometallic surfaces hold possible scenarios for simple and straightforward routes of protein crystallization.

SUBMITTER: Gurtu A

PROVIDER: S-EPMC6645513 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Ag Nanometallic Surfaces for Self-Assembled Ordered Morphologies of Zein.

Gurtu Apoorva A Bakshi Mandeep Singh MS

ACS omega 20180907 9

Nanometallic surfaces of Ag nanoparticles (NPs) catalyzed the self-aggregation behavior of zein in different ordered morphologies such as cubes, rectangles, and bars. This was studied in a ternary in situ reaction (AgNO<sub>3</sub> + zein + water), where zein performed the reduction as well as stabilization of Ag NPs. This reaction produced small Ag NPs of less than 10 nm predominantly bound with {111} crystal planes, which attracted the surface adsorption of zein. Surface-adsorbed zein initiate ...[more]

PMID: 31459197

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