35 / 38
Page 122
conferenceseries
.com
Volume 5, Issue 5
Res. Rev. J Mat. Sci. 2017
ISSN: 2321-6212
Advanced Materials 2017
September 07-08, 2017
September 07-08, 2017 | Edinburgh, Scotland
Advanced materials & Processing
11
th
International Conference on
Synthesis of porous gold nanostructures by controlled transmetallation reaction through a biological membrane
Manjunatha Pattabi
Mangalore University, India
S
acrificial template method using silver nanoparticles (AgNPs) of different shapes based on a simple galvanic replacement
reaction (GRR) or transmetallation reaction (TM reaction) has been developed by several research groups to produce hollow
gold nanostructures with tunable porosity and chemical composition1-4. Porous gold nanospheres could be successfully produced
at room temperature by the controlled TM reaction between Ag nanospheres and HAuCl
4
in aqueous medium through a dialysis
membrane5. The formation of porous gold nanostructures through TM reaction involving sacrificial silver nanoparticles and Au
3
+
ions (HAuCl
4
) controlled using a biological membrane (BM) is discussed in the talk. The formation of porous gold nanoparticles
(Porous AuNPs) via TM reaction is monitored using UV-Vis absorption spectra. High resolution transmission electron microscopy
(HRTEM) and field emission scanning electron microscopy (FESEM) confirms the formation of porous nanostructures. Energy
dispersive spectroscopy (EDS) indicates the presence of only gold in the nanostructures. The potential of porous gold nanostructures
synthesized using a simple room temperature process using a biological membrane in imaging is demonstrated using fluorescence
microscopy of certain biological samples.
manjupattabi@yahoo.comRes. Rev. J Mat. Sci. 2017, 5:5
DOI: 10.4172/2321-6212-C1-006