Coexistence of Homochiral and Heterochiral Adenine Domains at the Liquid/Solid Interface
| Autor: | Ross E. A. Kelly, Wael Mamdouh, Mingdong Dong, Flemming Besenbacher, Lev Kantorovich |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Models
Molecular Dimer Ab initio Liquid solid law.invention Surface-Active Agents chemistry.chemical_compound Microscopy Scanning Tunneling law Materials Chemistry Molecule Graphite Physical and Theoretical Chemistry Adenine Stereoisomerism Self-assembled monolayer 1-Octanol Surfaces Coatings and Films Solutions Crystallography chemistry Density functional theory Adsorption Scanning tunneling microscope Dimerization |
| Zdroj: | Mamdouh, W, Dong, M, Kelly, R E A, Kantorovich, L N & Besenbacher, F 2007, ' Coexistence of homochiral and heterochiral adenine domains at the liquid/solid interface ', Journal of Physical Chemistry Part B: Condensed Matter, Materials, Surfaces, Interfaces & Biophysical, vol. 111, pp. 12048-12052 . https://doi.org/10.1021/jp076623h Mamdouh, W, Dong, M, Kelly, R E A, Kantorovich, L N & Besenbacher, F 2007, ' Coexistence of homochiral and heterochiral adenine domains at the liquid/solid interface ', Journal of Physical Chemistry Part B: Condensed Matter, Materials, Surfaces, Interfaces & Biophysical, vol. 111, no. 42, pp. 12048-52 . https://doi.org/10.1021/jp076623h |
| ISSN: | 1520-5207 1520-6106 |
| DOI: | 10.1021/jp076623h |
| Popis: | Udgivelsesdato: 2007-Oct-25 In this work, the self-assembly of the DNA base molecule adenine (A) is imaged with high-resolution scanning tunneling microscopy (STM) at the liquid (1-octanol)/solid (HOPG) interface at room temperature. Rather surprisingly, the STM results reveal, for the first time, the spontaneous formation of two coexisting distinct (homo- and heterochiral) domains of adenine, which are formed at the liquid/solid interface without changing any experimental conditions. Ab initio density functional theory (DFT) calculations support our STM findings and suggest the existence of various A networks of nearly similar stability that all are constructed from the most stable A dimer. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|