| Autor: |
Creczynski-Pasa TB; Departamento de Ciências Farmacêuticas and Departamento de Física, UFSC, C. P. 476, Florianópolis, 88.040-900, Brazil. pasa@fisica.ufsc.br, Millone MA, Munford ML, de Lima VR, Vieira TO, Benitez GA, Pasa AA, Salvarezza RC, Vela ME |
| Jazyk: |
angličtina |
| Zdroj: |
Physical chemistry chemical physics : PCCP [Phys Chem Chem Phys] 2009 Feb 21; Vol. 11 (7), pp. 1077-84. Date of Electronic Publication: 2008 Dec 24. |
| DOI: |
10.1039/b811964c |
| Abstrakt: |
Self-assembly of dithiothreitol (DTT) on Au(111) from solution deposition has been studied by X-ray photoelectron spectroscopy and electrochemical data. DTT molecules self-assemble on Au(111) in a lying-down configuration irrespective of the concentration and temperature. XPS and electrochemical data indicate a DTT surface coverage of theta approximately 0.16 with two S-head-Au covalent bonds per DTT molecule. The DTT monolayer turns the Au surface hydrophilic enough to allow the formation of fluid dimyristoylphosphatidylcholine (DMPC) bilayer domains by vesicle fusion as revealed by in situ atomic force imaging. Methylene blue (MB) and flavin adenine dinucleotide (FAD) have been used as probes to study molecule transport across the bilayer. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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