Faculty
S VENUGOPAL
Assistant Professor

Phone : +91-80-2293 3113
Email : svgpal at iisc.ac.in
Click here to visit the Group Page


Education

- B.Tech. (Hons.), Chemical Engineering, IIT-Kharagpur (1996)
- M.S., Chemical Engineering, Louisiana State University (1998) - Ph.D., Chemical Engineering, Purdue University (2002)

Courses

- CH 201 Chemical Engineering Mathematics
- CH 236 Statistical Thermodynamics
- CH 247 Introduction to Molecular Stimulations BE 202 Thermodynamics and Transport in Biological Systems

Research

An underlying theme of research activities in our group is the development of a process engineering toolkit that will enable the use of metal nanoparticles as building blocks for applications in the fields of sensing, energy conversion, and nanoelectronics. We have developed a scalable process for the formation of ro-bust arrays of metal nanoparticles on any desired substrate. This has aided in the fabrication of several devices such as floating gate memory devices, flexible SERS (Surface Enhanced Raman Scattering) substrates and PEMFC (Proton Exchange Membrane Fuel Cell) catalyst layers. Currently, we are working on fabricating chemiresistive sensors and nanowire array based photoelectrodes for DSSCs. Furthermore, a room-temperature process for the synthesis of monodisperse metal nanoparticles in colloidal form was developed and patented. Based on the insights gained, we are now working on novel reactor designs for high-through-put, continuous flow synthesis of monodisperse metal nanoparticles. We have also discovered a simple process for fabricating conductive electrodes on paper using an office inkjet printer. Presently, we are working on utilising such conduc-tive films to develop low-cost products for water filtration, medical diagnostics and ubiquitous sensing.



Figure shows five LEDs stapled onto a conductive electrode circuit printed on paper. A 700 nm thick layer of silver nanowires was deposited using a commercial office inkjet printer.
 

Awards & Honors

- Humboldt Research Fellowship for Experienced Researchers, 2013-14
- Associate, Indian National Academy of Sciences, 2009

Publications

Publications:

1. S. Kumar and V. Santhanam, "Inkjet Printed Electroadhesive Pads on Paper", Int. J. of Nanotechnology. 14 (9-11), 559- 566 (2017)

2. P. Joshi and V. Santhanam, "Paper-based SERS Active Substrates on Demand ", RSC Advances. 6 (72), 68545-68552 (2016)

3. I. Banerjee, V. Kumaran, and V. Santhanam, "Fabrication of Electrodes with Ultralow Platinum Loading by RF Plasma Processing of Self-Assembled Arrays of Au@Pt Nanoparticles", Nanotechnol. 27, 305401 (2016)

4.I. Banerjee, V. Kumaran, and V. Santhanam, "Synthesis and Characterization of Au@Pt Nanoparticles with Ultrathin Platinum Overlayers", J. Phys. Chem. C , 119 (11), 5982-5987 (2015)

5.S.K. Parmar, and V. Santhanam, " In situ formation of silver nanowire networks on paper", Curr. Sci. 107(2), 262-269 (2014).

 

Patent:

1. V Santhanam, SK Sivaraman, Methods for preparing metal and metal oxide nanoparticles, US 8361188