Post Doctoral Scientists

Click on a name for details.

Robert Applegate

Title: Post-doctoral research scientist
Phone: C 303-901-5010
Email:
Degrees Earned: Ph.D., 2007, Applied Physics, Colorado School of Mines, minor in Applied Optics.

B.S., 2003, Engineering Physics, Colorado School of Mines, minor in Public Affairs for Engineers (McBride Honors Program)
Research Interests: Field-based particle manipulation for sorting and analysis.
Publications: Robert Applegate, Jr., Jeff Squier, Tor Vestad, John Oakey, and David Marr (2004). Optical trapping, manipulation, and sorting of cells and colloids in microfluidic systems with diode laser bars. Optics Express, 12(19) 4390-4398

Robert W. Applegate Jr., Jeff Squier, Tor Vestad, John Oakey, David W. M. Marr, Philippe Bado, Mark A. Dugan and Ali A. Said (2006) Microfluidic sorting system based on optical waveguide integration and diode laser bar trapping. Lab on a Chip, 6(3), 422-426.

Robert W. Applegate Jr., Dawn N. Schafer, Wafa Amir, Jeff Squier, Tor Vestad, John Oakey and David W. M. Marr (2007) Optically-Integrated Microfluidic Systems for Cellular Characterization and Manipulation. Journal of Optics A: Pure and Applied Optics (Invited), 9(8) S122-S128

Robert W. Applegate Jr., Jeff Squier, Tor Vestad, John Oakey, David W. M. Marr (2008) Fiber-Focused Diode-Bar Optical Trapping for Microfluidic Flow Manipulation. Applied Physics Letters, 92(1) 013904
Supervisor: Graves
Robert Applegate

Liping Ding

Title: Post-doctoral research scientist
Phone: 505-277-2291
Email:
Degrees Earned: Ph.D., Materials Science, Shaanxi Normal University, Xi'an, China

M.S., Organic Chemistry, Shaanxi Normal University, Xi'an, China

B.S., Chemistry Education, Shaanxi Normal University, Xi'an, China
Research Interests: Mechanism studies of anti-microbial polyelectrolytes; fluorescent film sensors
Publications: Liping Ding, Monika Domińska, Yu Fang, Gary J. Blanchard. Fluorescence and electrochemistry studies of pyrene-functionalized surface adlayers to probe the microenvironment formed by cholesterol. Electrochimica Acta, 2008, 53, 6704–6713.

Liping Ding, Yu Fang, Gary J. Blanchard. Probing the Effects of Cholesterol on Pyrene-Functionalized Interfacial Adlayers. Langmuir, 2007, 23, 11042-11050.

Liping Ding, Jianping Kang, Fengting Lü, Lining Gao, Xiong Yin, Yu Fang. Fluorescence behaviors of 5-dimethylamino-1-naphthalene-sulfonylfunctionalized self-assembled monolayer on glass wafer surface and its sensing properties for nitrobenzene. Thin Solid Films, 2007, 515, 3112-3119.

Liping Ding, Xin’ai Cui, Yani Han, Fengting Lü, Yu Fang. Sensing performance enhancement via chelating effect: A novel fluorescent film chemosensor for copper ions. J. Photochem. Photobio. A, 2007, 186, 143-150.

Liping Ding, Yu Fang, Linling Jiang, Lining Gao, Xiong Yin. Twisted intra-molecular electron transfer phenomenon of dansyl immobilized on chitosan film and its sensing property to the composition of ethanol–water mixtures. Thin Solid Films, 2005, 478: 318-325.
Supervisor: Whitten
Liping Ding

Sergio Mendez

Title: Post-doctoral research scientist
Phone: 505-277-2220
Email:
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Supervisor: Lopez
Sergio Mendez

S. D. Menake Piyasena

Title: Post-doctoral research scientist
Phone: 301-605-4538
Email:
Degrees Earned: B.Sc. (1997, University of Kelaniya, Sri Lanka)

Ph.D. (Chemistry, 2005, University of New Mexico)

Research Interests: Biosensors, biological applications of microfluidics, electrokinetics
in microfluidics, bead-based assays
Publications, chapters and patents:

D. A. Brevnov, M. Barela, M. E. Piyasena, G. P. Lopez, and P. B. Atanassov. Patterning of Nanoporous Anodic Aluminum Oxide Arrays by Using Sol-gel Processing,Photolithography, and Plasma Etching. Chemistry of Materials, 2004, 16, 682-687.


Menake E. Piyasena, Tione Buranda, Yang Wu, Larry A. Sklar and Gabriel P. Lopez. Near Simultaneous and Real Time Detection of Multiple Analytes in Bead-based Affinity Microcolumns. Analytical Chemistry, 2004, 76, 6266-6273.

Menake E. Piyasena, Dimiter N. Petsev and Gabriel P. Lopez. An Electrokinetic Cell Model for Analysis and Optimization of Electroosmotic Microfluidic Pumps. Sensors and Actuators B. 2006, 113, 461-467.


Reema Zeineldin, Menake E. Piyasena, Troy S. Bergstedt, Larry A. Sklar, David Whitten and Gabriel P. Lopez. Superquenching as a Detector for Microsphere-Based Flow Cytometric Assays. Cytometry Part A. 2006, 69A, 335-341.

Attila Gaspar, Menake E. Piyasena and Frank A. Gomez. Fabrication of Fritless Chromatographic Microchips Packed with Conventional Reversed-Phase Silica Particles. Analytical Chemistry, 2007, 79, 7906-7909.

Attila Gaspar, Menake E. Piyasena, Lajos Daroczi and Frank A. Gomez. Magnetically Controlled Valve for Flow Manipulation in Polymer Microfluidic Devices. Microfluidics and Nanofluidics, 2008, 4, 525-531.

Reema Zein-Eldin, Menake E. Piyasena, Troy S. Bergstedt, Larry A. Sklar, David Whitten and Gabriel P. Lopez. Detection of Membrane Biointeractions Based on Fluorescence Superquenching. Langmuir 2008,
24, 4125-4131.

Menake E. Piyasena, Reema Zein-Eldin, Kyle Fenton and Gabriel P. Lopez. Biosensors based on Release of Compounds upon Disruption of
Lipid Bilayers Supported on Porous Microspheres. BioInterphases 2008,
3, 38-49.


Menake E. Piyasena, Lilian J. Real, Rochelle A. Diamond, H. Howard Xu and Frank A. Gomez. Magnetic Microsphere-based Methods to Study the Interactions of Teicoplanin with Peptides and Bacteria. Anal. Bioanal. Chem. 2008, 392, 877-886.

Menake E. Piyasena, Robert Newby, Thomas J. Miller, Benjamin Shapiro and Elisabeth Smela. Electroosmotically Driven Microfluidic Actuators. Sensors and Actuators B. In press.

• BOOK CHAPTER
Menake E. Piyasena and Frank A. Gomez. “Magnetic Bead-Based Methods to Study the Interaction of Teicoplanin with Peptides and Bacteria” in Biological Applications of Microfluidics. John Wiley & Sons, Inc., 2008, pp. 473-488.

• PATENT
Gabriel P. Lopez, Menake E. Piyasena and Reema Zein-Eldin. Detection Systems Utilizing Supported Lipid Bilayers (US Patent
7,514,267).

Supervisor: Lopez
S. D. Menake Piyasena

Arjun Thapa

Title: Post-doctoral research scientist
Phone: 505-277-2299
Email:
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Supervisor: Chi
Arjun Thapa

Yanli Tang

Title: Post-doctoral research scientist
Phone: 505-227-7613
Email:
Degrees Earned: Ph.D., Organic Chemistry, 2007, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.     

M. S., Physical Chemistry, 2004, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, China.

B. S., Chemical Engineering, 2001, Henan University, Kaifeng, China.

Research Interests: Synthesis of oligo phenylene ethylenes and their application on biocidal activities and biosensors
Publications:

Yanli Tang, Zhijun Zhou, Kastu Ogawa, Gabriel P. Lopez, Kirk S. Schanze, David. G. Whitten, synthesis, self-assembly, and photophysical behavior of oligo phenylene ethylenes: from molecular to supramolecular properties, Langmuir 2009, 25, 21-25.

Yanli Tang, Zhijun Zhou, Katsu Ogawa, Gabriel P. Lopez, Kirk S. Schanze, David G. Whitten, photophysics and self-assembly of symmetrical and unsymmetrical cationic oligophenylene ethynylenes, Journal of Photochemistry and Photobiology A: Chemistry. 2009, in press.

Yanli Tang, Fude Feng, Minghui Yu, Lingling An, Fang He, Shu Wang, Yuliang Li, Daoben Zhu, G. C. Bazan, direct visualization of glucose phosphorylation with a cationic polythiophene. Adv. Mater. 2008, 20, 703-705.

Yanli Tang, Fude Feng, Fang He, Shu Wang, Yuliang Li, Daoben Zhu, direct visualization of enzymatic cleavage and oxidative damage by hydroxyl radicals of single-stranded DNA with a cationic polythiophene derivative, J. Am. Chem. Soc. 2006, 128, 14972-14976.

Yanli Tang, Fang He, Shu Wang, Yuliang Li, Daoben Zhu, Guillermo C. Bazan, multiply configurable optical-logic systems based on cationic conjugated polymer/DNA assemblies, Adv. Mater. 2006, 18, 2105-2110.

Yanli Tang, Fang He, Minghui Yu, Shu Wang, Yuliang Li, Daoben Zhu, radical scavenging mediating reversible fluorescence quenching of an anionic conjugated polymer: highly sensitive probe for antioxidants. Chem. Mater. 2006, 18, 3605-3610.

Yanli Tang, Fang He, Minghui Yu, Fude Feng, Lingling An, Huan Sun, Shu Wang, Yuliang Li, Daoben Zhu, a reversible and highly selective fluorescent sensor for mercury(II) using poly(thiophene)s that contain thymine moieties, Macromol. Rapid Commun. 2006, 27, 389-392.      

Supervisor: Whitten
Yanli Tang