Adsorption of DNA binding proteins to functionalized carbon nanotube surfaces with and without DNA wrapping

Adsorption of DNA binding proteins to functionalized carbon nanotube surfaces with and without... We examined the adsorption of DNA binding proteins on functionalized, single-walled carbon nanotubes (SWNTs). When SWNTs were functionalized with polyethylene glycol (PEG-SWNT), moderate adsorption of protein molecules was observed. In contrast, nanotubes functionalized with CONH2 groups (CONH2-SWNT) exhibited very strong interactions between the CONH2-SWNT and DNA binding proteins. Instead, when these SWNT surfaces were wrapped with DNA molecules (thymine 30-mers), protein binding was a little decreased. Our results revealed that DNA wrapped PEG-SWNT was one of the most promising candidates to realize DNA nanodevices involving protein reactions on DNA-SWNT surfaces. In addition, the DNA binding protein RecA was more adhesive than single-stranded DNA binding proteins to the functionalized SWNT surfaces. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png European Biophysics Journal Springer Journals

Adsorption of DNA binding proteins to functionalized carbon nanotube surfaces with and without DNA wrapping

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Publisher
Springer Berlin Heidelberg
Copyright
Copyright © 2017 by European Biophysical Societies' Association
Subject
Life Sciences; Biochemistry, general; Biological and Medical Physics, Biophysics; Cell Biology; Neurobiology; Membrane Biology; Nanotechnology
ISSN
0175-7571
eISSN
1432-1017
D.O.I.
10.1007/s00249-017-1200-3
Publisher site
See Article on Publisher Site

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