Coexistence of homochiral and heterochiral adenine domains at the liquid/solid interface.
J Phys Chem B
; 111(42): 12048-52, 2007 Oct 25.
Article
in En
| MEDLINE
| ID: mdl-17918893
ABSTRACT
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.
Search on Google
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Adenine
Type of study:
Prognostic_studies
Language:
En
Journal:
J Phys Chem B
Journal subject:
QUIMICA
Year:
2007
Type:
Article