Azo-polymers modified with nucleobases and their interactions with DNA molecules

Epure, Elena-Luiza, Moleavin, Ioana Andreea, Taran, Elena, Nguyen, Anh V., Nichita, Norica and Hurduc, Nicolae (2011) Azo-polymers modified with nucleobases and their interactions with DNA molecules. Polymer Bulletin, 67 3: 467-478. doi:10.1007/s00289-010-0436-1


Author Epure, Elena-Luiza
Moleavin, Ioana Andreea
Taran, Elena
Nguyen, Anh V.
Nichita, Norica
Hurduc, Nicolae
Title Azo-polymers modified with nucleobases and their interactions with DNA molecules
Journal name Polymer Bulletin   Check publisher's open access policy
ISSN 0170-0839
1436-2449
Publication date 2011-07-01
Sub-type Article (original research)
DOI 10.1007/s00289-010-0436-1
Open Access Status Not Open Access
Volume 67
Issue 3
Start page 467
End page 478
Total pages 12
Place of publication Heidelberg, Germany
Publisher Springer
Language eng
Formatted abstract
The photo-fluidization process which is specific for azo-materials opens a new perspective for their use in the field of molecules nano manipulation at the surface of the azo polymer films. This is possible considering that in the case of the UV irradiation from a polarized laser source the azo material has an unidirectional flow. Here, we investigated the structuring phenomena occurring on the surface of the azo-polysiloxanes films modified with nucleobases, upon UV irradiation. Measurements of topography and adhesive forces between polymeric substrates and a hydrophilic probe have been done by atomic force microscopy (AFM). The response of the material upon irradiation has been investigated also by using UV−VIS spectroscopy. This method allowed us to draw the photo-isomerization and relaxation curves. Also, preliminary tests were conducted to determine the capacity of the film surface to immobilize DNA molecules.
Keyword AFM
Molecular modeling
Azopolysiloxane
DNA
Nucleobases
Azopolymer films
Surface-relief
Azobenzene
Polysiloxanes
Nanomanipulation
Biomolecules
Organization
Dependence
Chemistry
Gratings
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Thu, 13 Oct 2011, 09:14:57 EST by Professor Anh Nguyen on behalf of School of Chemical Engineering