AVS 47th International Symposium
    MEMS Thursday Sessions
       Session MM+BI-ThM

Paper MM+BI-ThM4
Biologically-Compatible Polymeric MEMS Devices Fabricated using Holographic Two-Photon Induced Photopolymerization

Thursday, October 5, 2000, 9:20 am, Room 309

Session: Bio-MEMS and Microfluidics
Presenter: L.L. Brott, Technical Management Concepts, Inc.
Authors: L.L. Brott, Technical Management Concepts, Inc.
S.M. Kirkpatrick, Science Applications International Corporation
M.O. Stone, Wright-Patterson Air Force Base
Correspondent: Click to Email
Research in the bio-MEMS field has been driven by the desire to reduce the time, complexity and equipment needed to carry out clinical diagnostic procedures. Current bio-MEMS strategies rely extensively upon externally added reagents and conventional photolithography in the fabrication of these systems. In an effort to simplify these devices even further, research has begun incorporating the reagents, i.e. enzymes, directly into the walls of the microfluidic channels. Consequently, a new polymeric material based on poly(ethylene glycol) which maintains the biological activity of the reagents and is not sensitive to aqueous environments, yet whose monomeric form accepts aqueous solutions, was developed. The microfluidic channels were patterned by photocuring the monomer using a two-photon initiated photopolymerization process at 800 nm. A rose bengal/triethanol amine initiator system was used. By using a laser as the light source, holograms were patterned onto the device resulting in well defined and complex patterns.