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Micro and Nanosystems


ISSN (Print): 1876-4029
ISSN (Online): 1876-4037

Adhesive Transfer Soft Lithography: Low-Cost and Flexible Rapid Prototyping of Microfluidic Devices

Author(s): Seung Hee Jeong, Klas Hjort and Zhigang Wu

Volume 6, Issue 1, 2014

Page: [42 - 49] Pages: 8

DOI: 10.2174/1876402906666140527000508

Price: $65


A simple and low-cost approach was proposed for prototyping PDMS based microfluidic devices by transferring adhesive film microstructures onto a flexible substrate as a mould for PDMS replicas. The microstructures were engraved on an adhesive coated film using a commercial cutting plotter and then transferred (or laminated) onto a flexible substrate, allowing for engraved isolated patterns. The proposed technique was demonstrated by a hydrodynamic focusing microfluidic device, having splitting and re-combining sheath channels. The whole processing could be finished within 1 h in a normal laboratory environment. This approach offers an easy, flexible and rapid prototyping of microfluidic and lab-on-a-chip devices to users without expertise in microfabrication. In addition, by minimizing the use of chemicals, the process becomes more environmentally friendly than conventional photolithography based micro-fabrication techniques.

Keywords: Adhesive transfer, isolated structure replica, microfluidic device, rapid prototyping, soft lithography, tape transfer lithography.

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