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Now at Axion
BioSystems (link)
and NanoGrip Technologies (link)
Past Projects: (click
on the arrows for more information)
1. 3D Multi-electrode and fluidic arrays for neuronal culturing,
stimulation and recording à
Development of 3D multi-electrode
arrays with fluidic functionalities as well
2. Exploring
Applications of 3-D MEA à
We are exploring
different applications of the developed 3-D MEA technology. The intended
applications currently explored include both in-vitro and in-vivo use of
MEAs.
3. 3D Metal
Transfer Technologies
Development of novel microfabrication techniques alternative to 3D
lithography for integration of metal onto high-aspect ratio structures
Publications:
Journal Publications:
- S. Rajaraman, S.-O Choi, R. H. Shafer, J. D. Ross, J.
Vukasinovic, Y. Choi, S. P. DeWeerth, A. Glezer, and M. G. Allen.,
“Microfabrication technologies for a coupled three-dimensional
microelectrode, microfluidic array,” Journal of
Micromechanics and Microengineering, v 17, n 1, Jan. 2007, p
163-71. (PDF)
- S. Rajaraman, H-S. Noh, P.J. Hesketh and D.S. Gottfried,
“Rapid, Low Cost Microfabrication Technologies toward Realization of
Devices for Dielectrophoretic Manipulation of Particles and
Nanowires”, Sensors and
Actuators B, 2005 (accepted for publication).
- S.
Kumar, S. Rajaraman, R.A. Gerhardt, Z.L. Wang and P.J. Hesketh,
“Tin Oxide Nanosensor Fabrication using AC Dielectrophoretic
Manipulation of Nanobelts”, Electrochimica Acta, Vol. 51, pp.
943-951, 2005.
- S. Rajaraman, H.T.
Henderson, “A Unique Fabrication Approach for Microneedles using
Coherent Porous Silicon Technology” Sensors and Actuators B, vol. 105, pp. 443-448, Sept.
2004.
Conference
Publications:
- Swaminathan
Rajaraman, Maxine A. McClain, Seong-O Choi, James D. Ross, Stephen P.
DeWeerth, Michelle C. LaPlaca, and Mark G. Allen, “Three-Dimensional
Metal Transfer Micromolded Microelectrode Arrays (MEAS) For In-Vitro
Brain Slice Recordings,” In Proc. Transducers 2007: The 14th
International Conference on Solid-State Sensors, Actuators and
Microsystems, pp.1251-1254,
Lyon, France, June 10-14, 2007. (PDF)
- F. Herrault, C.-H. Ji, S. Rajaraman, R.H. Shafer, and
M.G. Allen, “Electrodeposited Metal Structures In High Aspect Ratio Cavities
Using Vapor Deposited Polymer Molds And Laser Micromachining” In
Proc. Transducers
2007: The 14th International Conference on Solid-State
Sensors, Actuators and Microsystems, pp.513-516, Lyon, France, June 10-14, 2007. (PDF)
- S-O. Choi, S. Rajaraman, Y-K. Yoon, X. Wu and M.G. Allen, “3-D Metal
Patterned Microstructure using Inclined UV Exposure and Metal Transfer
Micromolding Technology”, Hilton
Head 2006: A Solid State Sensor, Actuator and Microsystem Workshop,
Hilton Head, SC, June 2006. (PDF)
- J.
McNeir, M. Gyamerah, S.
Rajaraman, P.J. Hesketh, D.S. Gottfried and J. Gole,
“Dielectrophoresis-based Micro-Devices for Separation and Analysis of
Micro-Particles”, 33rd Annual Conference
of NOBCChE, Los Angeles, CA, April 2006 (submitted).
- S.
Kumar, S. Rajaraman, Z.L. Wang and P.J. Hesketh, “Tin Oxide
Nanosensor Fabrication using Dielectrophoretic Manipulation of
Nanobelts”, Electrochemical Micro and Nano Technologies Conference
(EMT 2004), Tokyo, Japan, Sept-Oct. 2004 (poster).
- S. Rajaraman, H-S. Noh, A. Choudhury, J. Street, P.J.
Hesketh and D.S. Gottfried, “Stereolithography based Development of
Dielectrophoretic Microchannels for Enrichment of Bio-particles”, 205th Meeting of the
Electrochemical Society, San Antonio, TX, May 2004.
- S.
Rajaraman, S. Kumar, H-S. Noh, P.J. Hesketh and D.S. Gottfried, “Dielectrophoretic
Micro-Devices for Manipulation of Nanowires and Macro-Molecules”, Electrochemical Society Symposium
on Electrochemical Systems, Sensors and MEMS, Atlanta, GA, April
2004 (poster).
- S.
Kumar, H. Shin, S. Rajaraman, P.J.
Hesketh and Z.L. Wang, “SnO2 Nanosensor Fabrication”, Electrochemical Society Symposium
on Electrochemical Systems, Sensors and MEMS, Atlanta, GA, April
2004.
- T.
Juneau, T. Chen, T. Brosnihan, S. Rajaraman, K. Chau, M. Judy,
“Single Chip 1x84 MEMS Mirror Array for Optical Telecommunication
Application”, SPIE Conference of Micromachining and
Microfabrication, San Jose, CA, January 2003.
- S. Rajaraman, B. Van
Dyke, H.T. Henderson “Applications of Coherent Porous Silicon
Technology in MEMS” International Conference on Nanocomputing -
Technology Trends, Tamil Nadu, India, Dec 2001.
Patents:
- J.D.
Ross, E.A. Brown, S. Rajaraman
and M.G. Allen, “Scalable Multielectrode Arrays (MEAs) for high
throughput manipulation and investigation of electrically active
tissue”, Georgia Tech Invention
Disclosure, Filed: 2007.
- M.G. Allen, Y-K. Yoon,
J-H. Park, X. Wu, Y. Zhao, S-O.
Choi and S. Rajaraman,
“Electrical Conductivity Layer Patterning for Electrically Functional
3-D Structures”, Georgia Tech
Patent, Filed: 2007, Pending award.
- M.
Karpman and S. Rajaraman,
“Shadow Mask and Method of making the same”, US Patent No.6893976. Analog Devices Inc., Filed:
2002, Awarded: 2005.
Thesis:
- S. Rajaraman, “Silicon MEMS-based Development and
Characterization of Batch Fabricated Microneedles for Biomedical
Applications”, M.S. Thesis,
University of Cincinnati, Cincinnati, OH, 2001
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