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Kinetics and Mechanism of In Situ Metallization of Bulk DNA Films.

ABSTRACT: DNA-templated metallization is broadly investigated in the fabrication of metallic structures by virtue of the unique DNA-metal ion interaction. However, current DNA-templated synthesis is primarily carried out based on pure DNA in an aqueous solution. In this study, we present in situ synthesis of metallic structures in a natural DNA complex bulk film by UV light irradiation, where the growth of silver particles is resolved by in situ time-resolved small-angle X-ray scattering and dielectric spectroscopy. Our studies provide physical insights into the kinetics and mechanisms of natural DNA metallization, in correlation with the multi-stage switching operations in the bulk phase, paving the way towards the development of versatile biomaterial composites with tunable physical properties for optical storage, plasmonics, and catalytic applications.

SUBMITTER: Shi ZH

PROVIDER: S-EPMC8787019 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature

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Kinetics and Mechanism of In Situ Metallization of Bulk DNA Films.

Shi Zi-Hao ZH Hsu Feng-Ming FM Mansel Bradley W BW Chen Hsin-Lung HL Fruk Ljiljana L Chuang Wei-Tsung WT Hung Yu-Chueh YC

Nanoscale research letters 20220124 1

DNA-templated metallization is broadly investigated in the fabrication of metallic structures by virtue of the unique DNA-metal ion interaction. However, current DNA-templated synthesis is primarily carried out based on pure DNA in an aqueous solution. In this study, we present in situ synthesis of metallic structures in a natural DNA complex bulk film by UV light irradiation, where the growth of silver particles is resolved by in situ time-resolved small-angle X-ray scattering and dielectric sp ...[more]

PMID: 35072827

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