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- W2811238333 abstract "Three-dimensional (3D) DNA nanostructures facilitate the directed self-assembly of various objects with designed patterns with nanometer scale addressability. Here, we report the enhancement of cytochrome c (cyt c) redox activity by using a designed 3D DNA nanostructure attached to a gold electrode to spatially control the position of cyt c within the tetrahedral framework. Charged encapsulation and spatial control result in the significantly increased redox potential and enhanced electron transfer of this redox protein when compared to cyt c directly adsorbed on the gold surface. Two different protein attachment sites on one double stranded edge of a DNA tetrahedron were used to position cyt c inside and outside of the cage. Cyt c at both binding sites show similar redox potential shift and only slight difference in the electron transfer rate, both orders of magnitude faster than the cases when the protein was directly deposited on the gold electrode, likely due to an effective electron transfer pathway provided by the stabilization effect of the protein created by the DNA framework. This study shows great potential of using structural DNA nanotechnology for spatial control of protein positioning on electrode, which opens new routes to engineer redox proteins and interface microelectronic devices with biological function." @default.
- W2811238333 created "2018-07-10" @default.
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- W2811238333 date "2018-06-25" @default.
- W2811238333 modified "2023-10-12" @default.
- W2811238333 title "Redox Engineering of Cytochrome c using DNA Nanostructure-Based Charged Encapsulation and Spatial Control" @default.
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- W2811238333 doi "https://doi.org/10.1021/acsami.8b07101" @default.
- W2811238333 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6325017" @default.
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