Size‐Dependent Catalytic Activity of Gold Nanoparticles in DNA Hydrogels
Author(s) -
Zinchenko Anatoly,
Taniguchi Shota,
Murata Shizuaki
Publication year - 2015
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.201500062
Subject(s) - self healing hydrogels , catalysis , nanoparticle , colloidal gold , chemical engineering , materials science , dna , nanotechnology , chemistry , polymer chemistry , organic chemistry , biochemistry , engineering
Summary DNA hydrogel was used as a “reactor” to synthesize gold nanoparticles of various sizes. By varying the amount of reducing agent in the reaction between HAuCl 4 and NaBH 4 in hydrogel it was possible to vary the average size of gold nanoparticles between 2 and 6 nm. Catalytic activity of DNA hybrid hydrogels with embedded gold nanoparticles of various sizes in hydrogenation reaction of nitroaromatic compound was compared and shown to have the maximum values at average size of gold NP ca. 4 nm.