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Title: Rapid prototyping of microchannels with surface patterns for fabrication of polymer fibers

Microfluidic technology has provided innovative solutions to numerous problems, but the cost of designing and fabricating microfluidic channels is impeding its expansion. In this study, Shrinky-Dink thermoplastic sheets are used to create multilayered complex templates for microfluidic channels. We also used inkjet and laserjet printers to raise a predetermined microchannel geometry by depositing several layers of ink for each feature consecutively. We achieved feature heights over 100 μm, which were measured and compared with surface profilometry. Templates closest to the target geometry were then used to create microfluidic devices from soft-lithography with the molds as a template. These microfluidic devices were, futhermore used to fabricate polymer microfibers using the microfluidic focusing approach to demonstrate the potential that this process has for microfluidic applications. Finally, an economic analysis was conducted to compare the price of common microfluidic template manufacturing methods. We showed that multilayer microchannels can be created significantly quicker and cheaper than current methods for design prototyping and point-of-care applications in the biomedical area.
 [1] ;  [1] ;  [2]
  1. Iowa State Univ., Ames, IA (United States)
  2. Iowa State Univ. and Ames Lab., Ames, IA (United States); Ames National Lab., Iowa
Publication Date:
OSTI Identifier:
Report Number(s):
Journal ID: ISSN 2046-2069; RSCACL
Grant/Contract Number:
AC02-07CH11358; Science Undergraduate Laboratory Internship (SULI)
Accepted Manuscript
Journal Name:
RSC Advances
Additional Journal Information:
Journal Volume: 5; Journal Issue: 87; Journal ID: ISSN 2046-2069
Royal Society of Chemistry
Research Org:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Workforce Development for Teachers and Scientists (WDTS) (SC-27)
Country of Publication:
United States