1. EMERGING TECHNOLOGIES BOILING ON NANO-STRUCTURES
BIO-MICRO-FLUIDICS, MEMS, POOL BOILING ON POOL BOILING ON FLOW BOILING USING
AND NANO-BIO-TECHNOLOGIES SILICON NANO-FINS CARBON NANOTUBES (CNT) TEMP. NANO-SENSOR
Student: S.R. Sriraman (M.S.) Students: V. Sathyamurthi (M.S., Ph.D.) and H.S. Ahn (Ph.D.) Student: M. Sundar (Ph.D.)
LAB-ON-CHIP (LOC) FOR WATER
QUALITY MONITORING USING
PEPTIDE ASSAY &
GOLD NANO-PARTICLES
Student: S. Datta (M.S.)
• In-situ gold nano-particle synthesis using peptide assay.
Sponsor: Air Force Research Lab. (AFRL) through the
Anteon Corporation (General Dynamics) • Pool boiling heat flux improved by 120% • Pool boiling heat flux improved by ~300% • Study surface temperature transients
Collaborator: Dr. R. Nayak (AFRL/ML) • CNT synthesized by CVD: 8-16 nm during flow boiling on nano-structures
• Nanofins nano-fabricated by Step and Flash
diameter, ~ 40 nm pitch using temperature nano-sensors (e.g.,
FILLING EXPERIMENTS FOR Imprint Lithography (SFIL) Process: 200 nm
thin film thermocouples or “TFT”, and
Sponsor: TEES (Faculty Start-Up)
DESIGNING DNA HYBRIDIZATION diameter, 15 – 600 nm height, 800 nm pitch.
Collaborator: Dr. R. Baughman, Nanotech diode sensor array) on the surface.
Sponsor: National Science Foundation (NSF)
MICRO-CHAMBERS Institute, University of Texas at Dallas Sponsor: Office of Naval Research
Students: S. Gauntt (M.S.), N. Singh (M.S.), Undergraduate Students: Sonia Bendjemil (ESP), R. Deleon (USRG), M. Harlow, D. Haas, J.R. Koss, and R. Williams
V. Sathyamurthi (M.S., Ph.D.), and R. Deleon (USRG)
• Experimental validation of lumped models. BOILING CHAOS: FRACTAL ORDER Dc
• Viscosity varies with contact angle! Student: V. Sathyamurthi (M.S., Ph.D.)
• Other Projects: Portable Vaccine Pack.
MULTI-PHASE FLOWS &
Dc2 – bubble plan area Dc1: bubble perimeter Plot of Dc2 vs. Dc1
• Lab-CD: Portable DNA Analyzer. HEAT TRANSFER LAB 3
2.95
2.9
2.85
2.5
2.45
2.4
2.4
2.38
2.36
2.34
Sponsors: Defense Advanced Project Agency 2.35
Dr. Debjyoti Banerjee
2.8 2.32
2.3
2.75 2.3
D c2
D c1
D c1
2.25
(DARPA/MF3) and University of California (Irvine) 2.7
2.65 2.2
2.28
2.26
dbanerjee@tamu.edu
2.6 2.15 2.24
2.55 2.1 2.22
2.5 2.05 2.2
PORTABLE NANO-CALORIMETER
2.45
2 2.18
80 82 84 86 88 90 92 94 96 98 100
75 77 79 81 83 85 87 89 91 93 95 97 99
Phone: 979-845-4500
2.7 2.75 2.8 2.85 2.9 2.95 3
Wall Temperature (°C)
Wall Temperature (°C) D c2
FOR EXPLOSIVES DECTECTION • The results show that pool boiling heat flux depends on the fractal
Students: I.C. Nelson (M.S.) and J.R. Koss (Undergraduate) Research Sponsors: NSF, DARPA-MTO, DARPA-MF3,
ONR, TSGC, NASA (Ureti), AFRL/AFOSR - Anteon order for bubble contact perimeter (Dc1) while wall superheat depends
• Detection of mustard gas, gasoline, alcohol, acetone. Corp. (General Dynamics), Nano-MEMS Research on fractal order for the bubble contact area (Dc2) on the heater.
Sponsor: TEES (Faculty Start-Up) and Mary Kay LLC/ NSF (SBIR Phase I), and Lynntech Inc./ ARO Sponsor: TEES (Faculty Start-Up)
O’Connor Process Safety Center (SBIR Phase II) Collaborator: Dr. J. Kim, University of Maryland
DPN: DIP PEN NANO-LITHOGRAPHY FOUNTAIN PENS (FPN) & NANOFLUIDS
CHIRALITY CONTROL OF ROOM TEMPERATURE CENTIWELLS Students: I.C. Nelson (M.S.) and D. Huitink (M.S.)
SYNTHESIS OF CNT ON MEMS Students: J.A. Rivas-Cardona (M.S.) and
SINGLE WALLED CNT V. Sathyamurthi (M.S., Ph.D.)
Reservoir
Student: D. Huitink (M.S.) Student: R. Gargate (M.S.) PEG Finned Heater
Liquid-Liquid Compact Heat
Exchanger
Microbeads Micro-well Array
Hot Loop (Oil) Cool Loop (Water)
Peltier Cooler
Tip-to-Tip Micro-well Array
Flowmeter Magnetic Gear Pump
DPN
SWCNT bundle Coating with catalyst solution CNT on AFM Tip
• Chirality (crystal structure) of single walled • CNT synthesis at room temperature
carbon nanotube (SWCNT) can be controlled (without requiring any furnace or process • Heat flux improved by 8% - 30% for fin coolers and compact heat
using DPN and Chemical Vapor Deposition exchangers using Poly Alpha Olefin (PAO) base fluid (that is used for
gasses) using micro-heaters. cooling aircraft components), seeded with two types of nanoparticles:
(CVD). • CNT characterized using SEM and
• Raman spectroscopy was found to correlate • Integrate microfluidics with DPN. (A) Exfoliated Graphite (EG-PAO)
Raman Spectroscopy. • Maximize throughput to 96 -1000 inks. (B) Carbon Nanotubes (CNT-PAO)
with TEM/ SEM and XPS. • Hand-held/ portable instrument for “on-
Sponsor: Defense Advanced Project Agency • Obtained fractal nano-patterns by DPN Sponsor: Air Force Research Lab. (AFRL), Office of Scientific Research
demand” synthesis of SWCNT. of Poly-Ethylene-Glycol (PEG). Collaborators: Dr. R. Ponnappan (AOARD), Dr. K. Yerkes (AFRL/PR),
(DARPA-MTO)
Sponsor: Defense Advanced Project Agency Dr. S. Ganguli (AFRL/NRC Fellow), Dr. A. Roy (AFRL/ML), and
Collaborators: Dr. S. Sinha (University of New Sponsor: Texas Space Grants Consortium
(DARPA-MTO) Dr. K. Lafdi (UDRI)
Haven) and Dr. S. Ganguli (AFRL/ NRC) (TSGC) New Investigator Program (NIP)