1. Sundaresan, V.B., Leo, D.J., 2009, Chemoelectrical energy conversion of ATP using ATPases, Journal of Intelligent Material Systems
   and Stuctures, (accepted for publication). Check back for online availability
2. Sundaresan, V. B., Leo, D. J., 2008, Modeling and characterization of a chemomechanical actuator using protein transporter,
   Sensors and Actuators B: Chemical, Vol. 131(2), 384-393
3. Sundaresan, V. B., Leo, D. J., Homison. C., and Weiland L. M., 2007, Biological Transport Processes for Microhydraulic Actuation,
   Sensors and Actuators B: Chemical, Vol. 123,685-695.
4. Sundaresan, V. B. and Leo, D. J., 2007, Controlled Fluid Transport using ATP-Powered Protein Pumps,
   Smart Materials and Structures, Vol. 16, No. 2, S207-S213.
5. Sundaresan, V. B. and Leo, D. J., 2006, Chemo-mechanical Model for actuation based on Biological Membranes,
   Journal of Intelligent Material Systems and Structures, Vol. 17, 863-870.
6. Matthews, L., Sundaresan, V. B., Giurgiutiu. V., Leo, D. J., 2006, Bioenergetics and Mechanical Actuation Analysis with Membrane
   Transport Experiments for Use in Biomimetic Nastic Structures, Journal of Materials Research, Vol. 21.

1. Sundaresan, V. B., Sarles, S. A. & Leo, D. J.(2008), "Characterization of porous substrates for biochemical energy conversion devices," in
   Active and Passive Smart Structures and Integrated Systems 2008, San Diego, California, USA, 2008, pp. 69280K-11.
2. Griffiths, D., Sundaresan, V.B., Akle, B., Vlachos, P. and Leo, D.J.,(2008) “Micro deposition method: a novel fabrication method for ionic
   polymer metallic composites," in Electroactive Polymer Actuators and Devices (EAPAD) 2008, San Diego, California, USA, 2008, pp. 69270C-8
3. Sundaresan, V.B., and Leo, D.J. (2007), Modeling and Characterization of Chemomechanical Actuator with Protein Transporters, Proceedings
   of IMECE-2007, ASME Mechanical Engineering Congress, Nov. 11-17, Seattle, WA.
4. Sundaresan, V. B., Sarles, S. A. & Leo, D. J. (2007), Chemoelectrical energy conversion of adenosine triphosphate, Proceedings of SPIE
   Smart Structures Conference, pp. 65250P.
5. Sundaresan, V.B., Sarles, S.A., and Leo, D. J., Stack of BioCell Converting ATP to Electrical Power and Possible Applications, Proceedings
   of MRS Fall 2006 Meeting, Nov 27- Dec 1, 2006, Hynes Convention Center, Boston, MA.
6. Sundaresan, V.B., Sarles, S.A., Leo, D. J., and Goode, B.J., Chemo-electrical Energy Conversion of Adenosine triphosphate in a Biological Ion
   Transporter, Proceedings of MRS Fall 2006 Meeting, Nov 27-Dec 1, 2006, Hynes Convention Center, Boston, MA.
7. Sundaresan, V.B. and Leo, D. J., Actuation using Protein Transporters Driven by Proton Gradients, Proceedings of IMECE-2006, ASME
   Mechanical Engineering Congress, Nov 5-11, Chicago, Ill.
8. Sundaresan, V.B. and Leo, D. J., Microhydraulic Actuation Using Biological Ion Transporters Reconstituted on Artificial BLM, Proceedings of MRS
   Spring 2006 Meeting, April 15-21, San Francisco, CA.
9. Sundaresan, V. B. and Leo, D. J., Experimental Investigation for Chemo-Mechanical Actuation using Biological Transport Mechanisms,
   Proceedings of IMECE-2005, ASME Mechanical Engineering Congress, Nov 5- 11, Orlando, FL.
10. Sundaresan, V. B. and Leo, D. J., Investigation on High Energy Density Materials Utilizing Biological Transport Mechanisms, Proceedings of
    IMECE-2004, ASME Mechanical Engineering Congress, Anaheim, CA.
11. Sundaresan, V. B., Akle, B., Leo, D. J., Investigation On Micro-Patterned Gold-Plated Polymer Substrate For A Micro Hydraulic Actuator,
    Proceedings of SPIE -Volume 6170, Smart Structures and Materials 2006: Active Materials: Behavior and Mechanics, San Diego, CA.
12. Sundaresan, V. B. and Leo, D. J., Protein-based Microhydraulic Transport for Controllable Actuation, Proceedings of SPIE - Volume 6168,
    Smart Structures and Materials 2006: Electroactive Polymers and Devices, San Diego, CA
13. Sundaresan, V. B. and Leo, D. J., Chemo-mechanical Model of Biological Membranes for Actuation Mechanisms, Proceedings of SPIE Smart
    Structures Conference, Volume 5761, Smart Structures and Materials 2005: Active Materials: Behavior and Mechanics pp. 108-118,
    San Diego, CA.

Leo, D. J. and Sundaresan, V. B., Biological Proteins in Nastic Actuation, Nastic Structures: AIAA Book on Smart Materials and Structures,
Ed: Prof. Wereley (under review)

1. Sundaresan, V.B., and Atulasimha, J. "On the use of Magnetoelectric Cantilevers in minimally invasive surgery / Magnetoelecric Dampers".
   (VCU disclosure ID: SUN-09-029).
2. Sundaresan, V.B., Castellucci, M. and Leo. D. J. “Self-healing Polymer Composite Using Surlyn and Carbon Fiber with Autonomous
   Detection and Healing Cycle”. (VTIP disclosure ID: 09-050).
   

Maximum output current ±250 mA // Maximum output voltage ± 12 V // Potential range ± 10 V
Applied potential accuracy ± 0.2% ± 2 mV // Applied potential resolution 150 µV // Measured potential resolution 300 or 30 µV
Current ranges 10 nA to 100 mA in 8 ranges // Current accuracy ± 0.2% ± 0.2% of current range // Applied current resolution 0.03% of current range
Measured current resolution 0.0003% of current range // Potentiostat bandwidth at 1 kOhm, 1 mA 500 kHz // Potentiostat rise/falltime (1 V step, 10–90%) <500 ns
Potentiostat modes high speed / high stability // Input impedance of electrometer > 100 GOhm // 8 pF // Input bias current @ 25°C < 1 pA
Bandwidth of electrometer > 4 MHz // A/D converter 16-bit with gains of 1, 10 and 100 external input signal
2 D/A converter 16-bit, 4 channels // Digital I/O lines 48

Reflection/Phase contrast microscope with FL attachment (10x.40x objectives with 6-position turret for reflector cubes)

 

 

The Cheminert M Series liquid handling pump is a syringe-free pump capable of delivering a bidirectional flow to six orders of magnitude.
It is a positive displacement pump, which means that it is self-priming and tolerant of any gas which may find its way into the fluid lines.
Since there is no separate fill cycle, the pump can be operated continuously, and voulumetric capacity is limited only by time.
RS-232 and RS-485 communication protocols are incorporated into the microprocessor-driven controller.
The M Series pump is recommended for any liquid handling applications requiring accuracy and precision. It is particularly suited for
applications with a wide range of volumes (which entail laborious syringe changes with other pumps) and applications which benefit
from the versatility provided when the pump is coupled with the optional multiposition reagent selection valve.

Dimension in mm : 608(width) 565(depth) 560(height)
Fitted with a H14 HEPA filter and a filtration efficiency of 99.999 %, particles of 0.3 microns or more can be retained.