DNA hydrogel as a template for synthesis of ultrasmall gold nanoparticles for catalytic applications.
ACS Appl Mater Interfaces
; 6(5): 3226-32, 2014 Mar 12.
Article
in En
| MEDLINE
| ID: mdl-24533931
ABSTRACT
DNA cross-linked hydrogel was used as a matrix for synthesis of gold nanoparticles. DNA possesses a strong affinity to transition metals such as gold, which allows for the concentration of Au precursor inside a hydrogel. Further reduction of HAuCl4 inside DNA hydrogel yields well dispersed, non-aggregated spherical Au nanoparticles of 2-3 nm size. The average size of these Au nanoparticles synthesized in DNA hydrogel is the smallest reported so far for in-gel metal nanoparticles synthesis. DNA hybrid hydrogel containing gold nanoparticles showed high catalytic activity in the hydrogenation reaction of nitrophenol to aminophenol. The proposed soft hybrid material is promising as environmentally friendly and sustainable material for catalytic applications.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
DNA
/
Hydrogel, Polyethylene Glycol Dimethacrylate
/
Metal Nanoparticles
/
Gold
Limits:
Animals
Language:
En
Journal:
ACS Appl Mater Interfaces
Journal subject:
BIOTECNOLOGIA
/
ENGENHARIA BIOMEDICA
Year:
2014
Type:
Article
Affiliation country:
Japan