Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10374809 | Colloids and Surfaces B: Biointerfaces | 2011 | 8 Pages |
Abstract
ⶠWe systematically studied the λ-DNA condensations on mica surfaces induced by alcohol and hexammine cobalt (III) [Co(NH3)63+] with atomic force microscopy (AFM). And we measured the critical condensation concentrations for Co(NH3)63+ and alcohols. ⶠWe investigated the collaborative condensation by both alcohol and Co(NH3)63+ and found that DNA condensation patterns can be observed even when the concentration of the two condensation agents are lower than their critical values. ⶠWe explained the observation by electrostatic interaction and concluded that the collaborative condensation phenomenon might be ascribed to the electrostatic interaction due to the lowering dielectric constant by adding alcohols.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Colloid and Surface Chemistry
Authors
Yanwei Wang, Shiyong Ran, Baoyuan Man, Guangcan Yang,