Students interested in senior design, master's project, or master's thesis work related to my research interests are encouraged to contact me as soon as possible. Students should expect to spend at least three semesters developing their projects.

I will begin accepting new students on a probationary status in Spring/Summer 2014. Students are expected to commit time to the lab over the summer for training.

Scroll down for open research projects.

Current Research Projects

  1. Computational multiphysics simulation of particle/cell transport in a microfluidic dielectrophoresis device.
    • Graduate Students: Tracey Greilich and Francis Wong
    • Basic project outcome will be characterization of three dimensional particle motion in a microfluidic device with pressure drive fluid flow under the influence of competing dielectrophoretic force fields. This is a complicated set of interactions that will require coupled electromagnetic and fluid mechanics simulations.
    • Project for MS student. Desired skills: experience or interest in CFD or physics simulation. COMSOL or ELMER experience a plus.
  2. Microfluidic devices for high throughput analysis of clinically relevant biofilms.
    • Graduate Student: Raul Barrera-Barraza

Masters Projects

  1. Telemedicine
    • Graduate Students: Jeffrey Mendoza and Shafayat Hussein
  2. Flow cytometry optimization
    • Graduate Students: Alex Asis and Kris Patel
  3. Microfluidic Electroporation
    • Graduate Students: Jephrey Rodriguez
  4. Krogh Tissue Cylinder Simulation
    • Graduate Students: Duniexky Casteñeda

Open Research Projects

  1. Frequency response of photo polymerized polyacrylamide (PA) salt-bridge electrodes.

    • Availability starting Spring 2014.
    • The basic outcomes of this project are: i) frequency response (electrical conductivity) of PA between 1kHz and 1MHz as a function of ii) electrolyte doping.
    • Big picture: this work will contribute to the development of a novel dielectrophoretic particle manipulation technique. The final device employs in-situ, photo polymerized polyacrylamide salt bridge electrodes that deliver a locally varying, phase modulated electric field.
    • Project for senior undergraduate or MS student. Desired skills: basic chemistry wet-lab, familiarity with oscilloscope, electrical properties of materials.

  2. Fabrication process development for cylcic-olefin polymer hot-embossed microfluidic devices. Project is currently full.
    • Availability starting Spring 2014.
    • Two main processes need to be established and validated: hot embossing and device bonding. Hot-embossing will involve varying the embossing temperature, pressure, and time. Additional process parameters such as demolding protocol may also need to be assessed. Results will be evaluated using SEM and bright-field microscopy. Device bonding protocol will involve assessment of a solvent-mediated bonding strength and resulting device quality. Results to be evaluated using SEM, bright-field microscopy, and pressure (burst) testing.
    • Big picture: this work will contribute to the development of a core microfluidic device fabrication technique for rigid plastic microfluidic devices.
    • Two projects for senior undergraduate students. Desired skills: proficiency with light microscopy and experience with scanning electron microscopy.

Other Projects

Development of low- and high-resolution photopolymerization techniques for microfluidic devices.

  • Project is NOT current being pursued.
  • Project outcomes to include transparency mask fabrication for use in the fluorescence light path of an inverted microscope for high resolution studies and 1:1 transparency mask fabrication for use in low-resolution (~25µm) work. Masks will be used for patterning UV-photoinitiated reactions in a microfluidic system for patterning polyacrylamide electrodes and surface functionalization.
  • Big picture: this work is related to the development and characterization of polyacrylamide salt bridge electrodes for use in dielectrophoresis systems.
  • One project for senior undergraduate or masters students. Desired skills: familiarity with optics (Physics 52 a plus) and organic chemistry (for UV photoinitiation and surface modification of polymer substrates).

Updated 2013-08-09