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Home > Press > Nano-devices for enhanced cooling and explosives sensing

Abstract:
Speakers: Debjyoti Banerjee, Ph.D.
Assistant Professor of Mechanical Engineering
Texas A&M University

(VIDEO CONFERENCED FROM TEXAS A & M UNIVERSITY)

Nano-devices for enhanced cooling and explosives sensing

San Marcos, TX | Posted on March 19th, 2007

Our research efforts are in: (a) cooling technologies, and (b) nano-lithography.

In the thermal area - we are investigating micro-scale heat transfer phenomena in boiling. Micron-scale features in boiling cause the formation of "cold spots". These cold-spots are able to transmit almost 60-90% of the total heat transfer.

Using Carbon Nano-Tube coated surfaces cooling was enhanced by 30-300%, probably due to enhancement of these cold spots in boiling. The enhancement was found to depend on the height of the Carbon Nanotubes, wall superheat and liquid subcooling. The applications are in materials processing, thermal management (cooling) and cryogenics. We have also demonstrated cooling enhancement by 8-10% using nanofluids.

DPN (Dip Pen Nanolithography) is a versatile technology that leverages microfluidic ink delivery systems with Scanning Probe Microscopy. The applications are in biotechnology, photo-mask repair, molecular electronics, nano-electronics and mask-less lithography. In earlier studies the DPN process was enhanced through the development of commercial microfluidic devices called "Inkwells". We are currently developing the next generation microfluidic devices for DPN (e.g.,Fountain Pen Nanolithography). The applications are in nano-catalysis, combinatorial nano-synthesis, bio-nanotechnology (e.g., cancer nanotechnology) and nano-sensors for homeland security, biosecurity and explosives detection (e.g., "nano-nose" and "nano-tongue").

Bio: Dr. Banerjee received his Ph.D. in Mechanical Engineering from UCLA (with minor in MEMS) and received the "2001 Best Journal Paper Award" from the ASME Heat Transfer Division (HTD). He received three M.S. degrees and was invited to the membership of four national academic honor societies. He attended the Indian Instituteof Technology (I.I.T.), Kharagpur for his Bachelor of Technology (Honors). Most recently Dr. Banerjee worked as a Manager of the Advanced Research & Technology (ART) group at Applied Biosystems Inc. ($2B annual revenue), CA, where he managed a group of 10 engineers and scientists (6 Ph.D.).



VENUE: You may attend the presentation from any one of these locations:

AUSTIN: Winstead PC
401 Congress Av., Ste 2100,
Austin, TX 78701; 512-370-2800


DALLAS: The University of Texas at Dallas,
The School of Management, Room SOM 1.502,
800 West Campbell Road, Richardson, TX 75080; 972-883-4568


HOUSTON: Winstead PC
919 Milam, Ste 2400
Houston, TX 77002; 713-650-8400


SAN ANTONIO: Winstead PC
700 N. St Mary St., Ste 1900
San Antonio, TX 78205; 210-277-6800


THE WOODLANDS: Winstead PC
600 Town Center One, 1450 Lake Robbins Drive
The Woodlands, TX 77380; 281-681-5900


Program begins at 11:30am with a complimentary lunch provided in the Winstead offices. Presentation begins at 12:00pm.

Event Coordinators:
Richard Fink 512-339-5020x130
Max Roundhill 512-339-5020x120

Chairman: Dr. Zvi Yaniv

Registration deadline is Friday, March 23 at 5:00 PM Central.

To register, please send an email to Deepika Misra with your preferred attendance location.

DVDs of selected presentations from previous speakers are available for a small fee (contact )

NanoExpress, a monthly email newsletter, is devoted to providing information on technological advances, applications, and business news to nanotechnology professionals. To subscribe, go to the web link http://www.txstate.edu/nac/nanoexpress.htmlx

####

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Contacts:
Nanomaterials Applications Center
Walter J Trybula, Ph.D.
Director
Texas State University
San Marcos, TX
(512) 245-6062

http://www.nanotxstate.org

Copyright © Texas State University

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