TY - JOUR
T1 - Synthesis and characterization of biopolymer agar mediated gold nanoparticles
AU - Rhim, Jong Whan
AU - Kanmani, Paulraj
N1 - Funding Information:
This research was supported by the Agriculture Research Center ( ARC 710003 ) program of the Ministry for Agriculture, Food and Rural Affairs, Korea .
Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.
PY - 2015/2/15
Y1 - 2015/2/15
N2 - Gold nanoparticles (AuNPs) were prepared by reducing AuCl3 using agar as a reducing and stabilizing agent. The formation of AuNPs was evidenced by strong absorption peak at 534-543 nm caused by the characteristic surface plasmon resonance (SPR) of gold nanoparticle. Height of SPR peak increased with increase in the concentration of AuCl3. The AuNPs observed with TEM were spherical in shape with particle size of 2-20 nm. The presence of elemental gold was also confirmed by EDX analysis. The XRD pattern of the AuNPs exhibited four characteristic peaks of gold at 38.2, 44.4, 64.6, and 77.8° of 2θ corresponding to the face centered cubic (fcc) structure of crystalline AuNPs with (1 1 1), (2 0 0), (2 2 0), and (3 1 1) planes of gold, respectively. These results confirmed that natural biopolymer agar had potential to be used as a reducing and stabilizing agent for AuNPs.
AB - Gold nanoparticles (AuNPs) were prepared by reducing AuCl3 using agar as a reducing and stabilizing agent. The formation of AuNPs was evidenced by strong absorption peak at 534-543 nm caused by the characteristic surface plasmon resonance (SPR) of gold nanoparticle. Height of SPR peak increased with increase in the concentration of AuCl3. The AuNPs observed with TEM were spherical in shape with particle size of 2-20 nm. The presence of elemental gold was also confirmed by EDX analysis. The XRD pattern of the AuNPs exhibited four characteristic peaks of gold at 38.2, 44.4, 64.6, and 77.8° of 2θ corresponding to the face centered cubic (fcc) structure of crystalline AuNPs with (1 1 1), (2 0 0), (2 2 0), and (3 1 1) planes of gold, respectively. These results confirmed that natural biopolymer agar had potential to be used as a reducing and stabilizing agent for AuNPs.
KW - Agar
KW - AuNPs
KW - Biopolymer
KW - Surface plasmon resonance
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U2 - 10.1016/j.matlet.2014.11.069
DO - 10.1016/j.matlet.2014.11.069
M3 - Article
AN - SCOPUS:84919360155
SN - 0167-577X
VL - 141
SP - 114
EP - 117
JO - Materials Letters
JF - Materials Letters
ER -