scholarly journals Synthesis and Characterization of DNA-mediated Gold Nanoparticles by Chemical Reduction Method

2015 ◽  
Vol 26 (4) ◽  
pp. 515-519
Author(s):  
Jun Youn Sohn ◽  
Jeong Sun Sohn
Keyword(s):  
Gold Nanoparticles ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Synthesis And Characterization ◽  
Chemical Reduction Method

Synthesis and characterization of Ag/PVA nanorods by chemical reduction method

2008 ◽  
Vol 40 (10) ◽  
pp. 3183-3186 ◽  
Author(s):  
M.A.S. Sadjadi ◽  
Babak Sadeghi ◽  
M. Meskinfam ◽  
K. Zare ◽  
J. Azizian
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Synthesis And Characterization ◽  
Chemical Reduction Method

scholarly journals Synthesis and Characterization of Silver/Clay Nanocomposites by Chemical Reduction Method

2009 ◽  
Vol 6 (11) ◽  
pp. 1909-1914 ◽  
Author(s):  
Mansor Bin Ahmad ◽  
Kamyar Shameli ◽  
Majid Darroudi ◽  
Wan Md Zin Wan Yunus ◽  
Nor Azowa Ibrahim
Keyword(s):  
Reduction Method ◽  
Chemical Reduction ◽  
Synthesis And Characterization ◽  
Clay Nanocomposites ◽  
Chemical Reduction Method

scholarly journals Preparation and Characterization of Gold Nanoparticles in Chitosan Suspension by One-Pot Chemical Reduction Method

Nano Hybrids ◽  
2014 ◽  
Vol 6 ◽  
pp. 47-57 ◽  
Author(s):  
R. Lakshmi Narayanan ◽  
M. Sivakumar
Keyword(s):  
Gold Nanoparticles ◽  
Reduction Method ◽  
Chemical Reduction ◽  
Chemical Reduction Method ◽  
One Pot ◽  
Electron Transfer Mechanism ◽  
Potential Measurement ◽  
Protonated Amine ◽  
Amine Groups

Gold nanoparticles were synthesized in chitosan suspension by one-pot chemical reduction method without any chemical reducing reagent. In aqueous acidic medium, chitosan exhibits polycationic nature due to protonation of amine groups of each glucosamine repeating units. The adsorption of AuCl4- ions occurs on chitosan through electrostatic attraction and further reduction of Au3+ to Au0 proceeds through a three electron transfer mechanism by oxidation of protonated amine groups of chitosan chain. The change of color from dirty yellow to intense red indicates the formation of gold nanoparticles in chitosan suspension which acts as both reducing and stabilizing agent. Characterization techniques such as UV-VIS, FTIR, Zeta potential measurement, FESEM and TEM were carried out in order to examine the reduction and stabilization phenomena rendered by chitosan.

Sign in / Sign up

Export Citation Format

Share Document