The University of Georgia Riverbend South Building

220 Riverbend Road
Athens, GA 30602.
Off: 706-542-4101
Lab: 706-542-9413

 





PUBLICATIONS & PATENTS

BOOK CHAPTERS

  1. 'Scanning electrochemical microscopy for biological fuel cell characterization' in the book entitled Enzymatic Fuel Cells: From Fundamentals to Applications, R.P. Ramasamy, John Wiley, (2012). (Request PDF)

  2. 'Proton exchange membrane fuel cell membrane electrode assemblies', R.P. Ramasamy, Encyclopedia of Electrochemical Power Sources, Vol 2, Chapter 227, 787-805, Elsevier Scientific, UK, (2009). (Request PDF)

JOURNAL ARTICLES

  1. 'Highly sensitive electrochemical detection of methyl salicylate using electroactive gold nanoparticles', Y. Umasankar and R.P. Ramasamy, Analyst, (2013). (Request PDF)

  2. 'Electrochemical impedance spectroscopy for micropbial fuel cell characterization', N. Sekar and R.P. Ramasamy, J. Microbial and Biochemical Technology, accepted,, (2013). (Request PDF)

  3. 'On the bio-electrcatalytic activity of tyrosinase for oxygen reduction reaction', Y. Umasankar and R.P. Ramasamy, Catalysis Science and Technology, DOI: 10.1039/C3CY001180F, (2013). (Request PDF)

  4. 'High photo-electrochemical activity of thylakoid-carbon nanotube composites for photosynthetic energy conversion', J.O. Calkins, Y. Umasankar and R.P. Ramasamy, Energy and Environmental Science, 6, 1891-1900 (2013). (Request PDF)

  5. 'Riboflavin production by Shewanella oneidensis MR-1 in response to electron donor limitation', J. Roy, H.R. Luckarift, C. Lau, A. Falase, K.E. Garcia, L.K. Ista, P. Chellamuthu, R.P. Ramasamy, V. Gadhamshetty, G. Wagner, Y.A. Gorby, K.H. Nealson, O. Bretschger, G.R. Johnson and P. Atanassov, RSC Advances, 2, 10020-10027 (2012). (Request PDF)

  6. 'Electroanalytical studies on green leaf volatiles for potential sensor development', Y. Umasankar, G. Rains and R.P. Ramasamy, Analyst, 137, 13, 3138-3145 (2012). (Request PDF)

  7. 'Designing Si-based nanowall arrays by dynamic shadowing growth to tailor the performance of Li-ion battery anodes', Y. He, B. Yang, K. Yang, C. Brown, R.P. Ramasamy, H. Wang, C. Lundgren and Y. Zhao, J. Materials Chemistry, 22, 8294-8303 (2012). (Request PDF)

  8. 'Design of carbon nanotube based gas diffusion electrode for O2 reduction by multi-copper oxidase', C. Lau, E.R. Adkins, R.P. Ramasamy, H.R. Luckarift, G.R. Johnson and P. Atanassov, Advanced Energy Materials, 2, 162-168 (2012). (Request PDF)

  9. 'Kinetic and mechanistic parameters of laccase catalyzed direct electrochemical oxygen reduction reaction', N.S. Parimi, Y. Umasankar, P. Atanassov and R.P. Ramasamy, ACS Catalysis, 2, 1, 38-44 (2012). (Request PDF)

  10. Time-course correlation of biofilm properties and electrochemical performance in single chamber microbial fuel cells', Z. Ren, R.P. Ramasamy, S. Redcloud-Owen, M. Mench and J. Regan, Bioresource Technology, 102, 1, 416-421 (2011). (Request PDF)

  11. High electrocatalytic activity of tethered multicopper oxidase-carbon nanotube conjugates', R.P. Ramasamy, H. R. Luckarift, D. Ivnitski, P. Atanassov and G.R. Johnson, Chemical Communications, 46, 33, 6045-6047 (2010). (Request PDF)

  12. Impedance spectroscopy as a tool for non-intrusive detection of extracellular mediators in microbial fuel cells', R.P. Ramasamy, V. Gadhamshetty, L. J. Nadeau and G. R. Johnson, Biotechnology and Bioengineering, 104, 5, 882, (2009). (Request PDF)

  13. Impact of initial biofilm growth on the anode impedance of microbial fuel cells', Biotechnology and Bioengineering, 101, 1, 101 (2008). (Request PDF)

  14. Characteristic behavior of polymer electrolyte fuel cells during cold start', C. Chacko, R.P. Ramasamy, S. Kim, M. Khandelwal and M. M. Mench, J. Electrochemical Society, 155, 11, B1145 (2008). (Request PDF)

  15. Investigation of macro and micro porous layer interaction in polymer electrolyte fuel cells', R.P. Ramasamy, E.C. Kumbur, W. Liu, D. Moore, M. Murthy and M.M. Mench, International J. Hydrogen Energy, 33, 3351 (2008). (Request PDF)

  16. Effect of water on the electrochemical oxidation of gas phase SO2 in a PEM electrolyzer for H2 production', J. Staser, R.P. Ramasamy, P. Sivasubramanian and J.W. Weidner, Electrochemical and Solid State Letters, 10, 11, E17 (2007). (Request PDF)

  17. Electrochemical H2 production from thermo chemical cycles using PEM electrolyzer', P. Sivasubramanian, R.P. Ramasamy, F. Freire, C. Holland and J. Weidner, International J. Hydrogen Energy, 32, 4, 463 (2007). (Invited). (Request PDF)

  18. Simulation of capacity loss in carbon electrode for Li-ion cells during storage', R.P. Ramasamy, J. Lee and B.N. Popov, J. Power Sources, 166, 1, 266 (2007). (Request PDF)

  19. Discharge characteristics of silver vanadium oxide cathodes”, R.P. Ramasamy, C. Feger, T. Strange and B.N. Popov, J. Applied. Electrochemistry, 36, 4, 487 (2006). (Request PDF)

  20. Calendar life performance of pouch lithium ion cells', R.P. Ramasamy, R.E. White and B.N. Popov, J. Power Sources, 141, 2, 298 (2005). (Request PDF)

  21. Electrochemical characterization of polypyrrole/Co0.2CrOx composite as cathode material for lithium ion batteries', R.P. Ramasamy, B. Veeraraghavan, B. Haran and B. Popov,  J. Power Sources, 124, 1, 197 (2003). (Request PDF)

  22. Synthesis, characterization and cycling performance of novel chromium oxide cathode materials for lithium batteries', R.P. Ramasamy, P. Ramadass, B. Haran and B. Popov, J. Power Sources, 124, 1, 155 (2003). (Request PDF)

PROCEEDINGS

  1. 'Catalytic activity of tyrosinase for potential biofuel cell application',Y. Umasankar and R.P. Ramasamy, ECS Transactions, Biological Fuel Cells 5, accepted, (2012).

  2. 'Effect of biofilm properties on the electrochemical performance of microbial fuel cells', R.P. Ramasamy, S. R. Cloud, Z. Ren, J. Regan, M. Mench, ECS Transactions, Biological Fuel Cells 3, 13, 21, 11-17 (2008).

  3. 'Microbial fuel cells for waste water treatment', R.P. Ramasamy, Z. Ren, M. Mench and J. Regan, ECS Transactions, Battery – Energy Technology, 11, 32, 115-125 (2008). (PDF)

  4. 'Freeze-induced damage and purge based mitigation in polymer electrolyte fuel cells', S. Kim, C. Chacko, R.P. Ramasamy and M.M. Mench, ECS Transactions, PEMFC VII – Part 1, 11, 1, 577-586 (2007).

  5. 'Electrochemical impedance spectroscopy studies on microbial fuel cells', R.P. Ramasamy, Z. Ren, M. Mench and J. Regan, ACS Preprints, 234th National Meeting, Fuel Chemistry Division, 52, 2, 539 (2007).

MEETING PRESENTATIONS
(Presenting author underlined)

  1. 'Fracture of Si-based nanowalls during lithiation and de-lithiation by dynamic shadowing growth', Y. He, B. Yang, K. Yang, C. Brown, R.P. Ramasamy, H. Wang, C. Lundgren and Y. Zhao. 2012 ASME International Mechanical Engineering Conference, Houston TX, Nov 9-15, 2012.

  2. 'Designing Si-based nanoarrays by dynamic shadowing growth to tailor the performance of Li-ion battery anodes', Y. He, B. Yang, C. Becker, K. Yang, C. Brown, R.P. Ramasamy, H. Wang, C. Lundgren and Y. Zhao. 59th American Vacuum Society International Symposium, Tampa FL, Oct 28 – Nov 2, 2011.

  3. 'Thylakoid based photosynthetic electrochemical cell', R.P. Ramasamy. 2012 Gordon Research Conference on Photosynthesis, Davidson NC, July 7-131, 2012.

  4. 'Catalytic activity of tyrosinase for potential biofuel cell application', Y. Umasankar and R.P. Ramasamy. 221st Meeting of the ECS, Seattle WA, May 6-11, 2012.

  5. 'Photo-electrochemical activity of thylakoids on carbon nanotube modified electrodes', J.O. Calkins, Y. Umasankar and R.P. Ramasamy. 221st Meeting of the ECS, Seattle WA, May 6-11, 2012.

  6. 'Manipulating photosynthesis for electricity generation', J.O. Calkins, Y. Umasankar and R.P. Ramasamy. 4th Annual Georgia Nanotechnology and Infectious Diseases Symposium, Atlanta GA, Apr 2, 2012.

  7. 'Scanning electrochemical microscopy for imaging living cells and tissues', Y. Umasankar and R.P. Ramasamy. 4th Annual Georgia Nanotechnology and Infectious Diseases Symposium, Atlanta GA, Apr 2, 2012.

  8. 'Imaging biological processes using scanning electrochemical microscopy', Y. Umasankar and R.P. Ramasamy. 2012 Annual Meeting of the IBE, Indianapolis IN, Mar 1-3, 2012.

  9. 'Photosynthetic energy conversion using thylakoid modified electrodes', J.O. Calkins, Y. Umasankar and R.P. Ramasamy. 2012 Annual Meeting of the IBE, Indianapolis IN, Mar 1-3, 2012.

  10. 'Designing Si-based nanorod arrays for Li-ion battery anodes by dynamic shadowing growth', Y. He, C. Brown, R. P. Ramasamy, K. Yang, H. Wang and Y. Zhao. 2011 Materials Research Society Fall Meeting, Boston MA, Nov 28 – Dec 2, 2011.

  11. 'Electrochemical sensor for detection of volatiles released by plants', T. Konduru, N. Parimi, G. Rains and R.P. Ramasamy. 220th Meeting of the ECS, Boston MA, Oct 9-14, 2011.

  12. 'Direct bioelectrocatalysis of oxygen reduction reaction', P. Atanassov, D. Ivnitski, C. Lau, H.R. Luckarift, R.P. Ramasamy and G.R. Johnson. 219th Meeting of the ECS, Montreal, Canada, May 1-6, 2011.

  13. 'Electrochemical studies on coupled dicopper enzymes for bio-electrocatalysis', N. Parimi and R.P. Ramasamy. 219th Meeting of the ECS, Montreal, Canada, May 1-6, 2011.

  14. 'Enzyme nanocomposites for electricity generation in biological fuel cells', N.S. Parimi and R.P. Ramasamy. 2011 Annual Meeting of the IBE, Atlanta GA, Mar 3-5, 2011.

  15. 'Tethered enzyme nano composites for bio-electrocatalysis', R.P. Ramasamy, H.R. Luckarift, D. Ivnitski, P. Atanassov, and G.R. Johnson. 218th Meeting of the ECS, Las Vegas NV, Oct 10-15, 2010.

  16. 'Enzyme immobilization on functional nanomaterials for bioelectrochemical applications', R.P. Ramasamy. 61st Annual Meeting of the ISE, Nice, France, Sep 26-Oct 1, 2010.

  17. 'Electrochemical characterization of the biofilm in microbial fuel cells', R.P. Ramasamy. 61st Annual Meeting of the ISE, Nice, France, Sep 26-Oct 1, 2010.

  18. 'Direct bioelectrocatalysis by multi-copper oxidases', P. Atanassov, C. Lau, D. Ivnitski, C. Khripin, H.R. Luckarift, R.P. Ramasamy and G.R. Johnson, 61st Annual Meeting of the ISE, Nice, France, Sep 26-Oct 1, 2010.

  19. 'Carbon nanotubes as a conductive interface for enzymatic fuel cell designs', H. R. Luckarift, R.P. Ramasamy, L. Barnes, D. Ivnitski, P. Atanassov, R. Pachter and G.R. Johnson. 217th Meeting of the ECS, Vancouver, Canada, Apr 25-30, 2010.

  20. 'Bio-inspired nanocomposite catalysts for direct electron transfer in bio-electrochemical systems', R.P. Ramasamy, H. R. Luckarift, D. Ivnitski, P. Atanassov and G. R. Johnson. AIChE 2009 Annual Meeting, Nashville TN, Nov 8-13, 2009.

  21. 'Surface characterization and direct electrochemistry of multi-copper oxidases', D. Ivnitski, K. Artyushkova, C. Khripin, H.R. Luckarift, R.P. Ramasamy, G.R. Johnson and P. Atanassov. 216th Meeting of the ECS, Vienna, Austria, Oct 4-9, 2009.

  22. 'Electron transfer mechanism in multi-copper oxidases', D. Ivnitski, H.R. Luckarift, R.P. Ramasamy, K. Artyushkova, P. de la Lglesia, C. Khripin, C. Apblett, G. R. Johnson and P. Atanassov. 238th ACS National Meeting, Washington DC, Aug 16-20, 2009.

  23. 'Conductive biohybrid materials for enzymatic fuel cell cathodes', R.P. Ramasamy, H.R. Luckarift, D. Ivnitski, C. Apblett, P. Atanassov and G.R. Johnson. 238th ACS National Meeting, Washington DC, Aug 16-20, 2009.

  24. 'Shewanella assisted electricity production in gravity fed microbial fuel cell', V. Gadhamshetty, R.P. Ramasamy, J. Biffinger, B. Ringeisen, L. Nadaeu, S. Sizemore and G. R. Johnson. 238th ACS National Meeting, Washington DC, Aug 16-20, 2009.

  25. 'Silica encapsulated laccase/CNT catalysts for enzymatic fuel cell cathodes', R.P. Ramasamy, H.R. Luckarift, D. Ivnitski, P. Atanassov and G. R. Johnson. 215th Meeting of the ECS, San Francisco CA, May 24-29, 2009.

  26. 'Biofilm architecture evolution in microbial fuel cells - the effects of external resistance and operation duration', Z. Ren, S. RedCloud-Owen, W. Carpenter, R.P. Ramasamy, M. M. Mench and J. M. Regan, 109th General Meeting of the American Society of Microbiology (ASM), Philadelphia PA, May 17-21, 2009.

  27. 'Conductive biohybrid nanomaterials for direct electron transfer', H. R. Luckarift, D. Ivnitski, R. P. Ramasamy, P. Atanassov, G. R. Johnson. 7th Annual Nanomaterials for Defense Conference, Burlingame CA, April 6-9, 2009.

  28. 'Gravity fed microbial fuel cells for energy conversion', V. Gadhamshetty, R.P. Ramasamy, J. Biffinger, B. Ringeisen, L. Nadaeu, S. Sizemore and G.R. Johnson. The Air Force Research Laboratory RX Biotechnology Program Meeting, Washington DC, Nov 12-13, 2008.

  29. 'Effect of biofilm properties on the electrochemical performance of microbial fuel cells', R.P. Ramasamy, Z. Ren, S. R. Cloud-Owen, M. Mench and J. Regan. 1st International Symposium on Microbial Fuel Cells, The Pennsylvania State University, University Park PA, May 27-29, 2008.

  30. 'Effect of biofilm properties on the electrochemical performance of microbial fuel cells', R.P. Ramasamy, Z. Ren, S. R. Cloud-Owen, J. Regan and M. Mench. 213th Meeting of the ECS, Phoenix AZ, May 18-23, 2008.

  31. 'Remaining fundamental challenges in polymer electrolyte fuel cells', R.P. Ramasamy and M. M. Mench. ACS Symposium on Energy Alternatives, ACS Maryland Section Meeting, Fredrick MD, Oct 13, 2007. (Invited).

  32. 'Freeze-induced damage and purge based mitigation in polymer electrolyte fuel cells', S. Kim, C. Chacko, R.P. Ramasamy and M. Mench. 212th Meeting of the ECS, Washington DC, Oct 7-12, 2007.

  33. 'Experimental determination of diffusion coefficient of water in PEFC membrane at low temperatures', R.P. Ramasamy, S. Kim and M. M. Mench. 212th Meeting of the ECS, Washington DC, Oct 7-12, 2007.

  34. 'Microbial fuel cells for waste water treatment', R.P. Ramasamy, Z. Ren, M. Mench and J. Regan. 212th Meeting of the ECS, Washington DC, Oct 7-12, 2007.

  35. 'Sustainable bio-energy using microbial fuel cells – anode limitations in a mixed culture system', R.P. Ramasamy, Z. Ren, M. Mench and J. Regan. 2007 AIChE National Meeting, Salt Lake City UT, Nov 4- 9, 2007.

  36. 'Electrochemical impedance spectroscopy studies on microbial fuel cells', R.P. Ramasamy, Z. Ren, J. Regan and M. Mench. ACS 234th National Meeting, Boston MA, Aug 22-26, 2007.

  37. 'Interfacial and bulk thermal and mass transport parameters in fuel cell media', R.P. Ramasamy, M. Khandelwal, and M.M. Mench. 210th meeting of The Electrochemical Society, Cancun, Mexico, Nov 1, 2006.

  38. 'Low temperature electrolytic hydrogen production in PEM electrolyzer', R.P. Ramasamy, P. Sivasubramanian, F. Freire, C. Holland and J. Weidner. 208th meeting of The Electrochemical Society, Los Angeles CA, Oct 16-21, 2005.

  39. 'Modeling self discharge of carbon anodes in lithium ion cells', R.P. Ramasamy and B. Popov, 208th meeting of The Electrochemical Society, Los Angeles CA, Oct 16-21, 2005.

  40. 'Electrochemical generation of hydrogen via thermo chemical cycles', R.P. Ramasamy, P. Sivasubramanian, F. Freire, C. Holland and J. Weidner. AIChE 2005 Spring Meeting, Atlanta GA, April 10-14, 2005.

  41. 'Calendar life studies on lithium ion cells', R.P. Ramasamy and B. Popov, 206th Meeting of the ECS, Honolulu, Hawaii, Oct 3-8, 2004.

  42. 'Calendar life studies on lithium ion pouch cells', R.P. Ramasamy, P. Ramadass, B. Haran and B. Popov, 203rd meeting of The Electrochemical Society, Paris, France, Apr 26-May 2, 2003.

  43. 'Comparison of ion selectivity's of prussian blue and nickel hexa cyanoferrates', R. Ramaraja Pandian, J. Joseph and H. Gomathi, 9th National Convention of Electrochemists, Surat, India, Nov, 1999.

Graphical abstract: Front cover

Graphical abstract: Front cover

Graphical abstract: Front cover