{"id":25,"date":"2015-02-02T20:10:30","date_gmt":"2015-02-02T20:10:30","guid":{"rendered":"http:\/\/faculty.eng.fau.edu\/kim\/?page_id=25"},"modified":"2015-02-04T16:02:07","modified_gmt":"2015-02-04T16:02:07","slug":"microfabrication","status":"publish","type":"page","link":"https:\/\/faculty.eng.fau.edu\/kim\/research\/microfabrication\/","title":{"rendered":"Microfabrication Techniques"},"content":{"rendered":"

1. Hot Embossing Technique For Plastic Microfluidic Chips<\/h3>\n

A cost-effective, simple, and rapid prototyping technique for plastic microfluidic devices is useful for various applications. The focus of this research is on the fabrication of polymethylmethacrylate (PMMA) chip using a polymethylsiloxane (PDMS)-based hot embossing process.<\/p>\n

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<Hot Embossing Machine (>$100,000) vs. Laboratory Press ($5,000)><\/div>\n

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<Optical Images of Mold and Replica><\/div>\n

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2. Characterization of PDMS Properties<\/h3>\n

Typical PDMS chips were made of mixing ratio with 10:1 (prepolymer : mixing agent), but their mechanical and chemical properties are not suitable to various microfluidic applications such as pressure driven flow (> O<\/em>(100 Pa)) and heavy chemical-involved flows. This research is for enhancing the mechanical and thermal properties of PDMS material to use it in various microfluidics applications.<\/p>\n

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<Channel Geometry><\/div>\n
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\u00a0<Deformation by Pressure-Driven Flow> \u00a0d<\/span><\/div>\n

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<PDMS\u00a0swelling>\u00a0<\/strong><\/p>\n