Date of Award
Bachelor of Science (B.S.) in Chemistry and University Honors
Soft lithography is a well-established route to wafer-scale reproduction of micro- and nanoscale features in a wide variety of materials. Nevertheless, micron length scales have yet to be explored, despite the potential utility of such structures. Here, polymer micropillars of 6-12 μm length, approximately 0.5-1.5 μm wide at 10 μm spacing are reproduced from a polydimethylsiloxane (PDMS) mold made from patterned cellulose acetate (CA). The patterned CA was cast from a rigid fused silica template machined by a pulsed femtosecond laser. Pore topographic features were successfully reproduced in Norland Optical Adhesive (NOA), polycaprolactone (PCL), Nafion, acrylonitrile butadiene styrene (ABS), and CA, with a length scale of 7.7 to 13.5 μm.
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Pitts, Jason D., "Soft Lithographic Replication Of High Length-Scale Micropillars From Laser-Ablated Fused-Silica Templates" (2021). University Honors Theses. Paper 1107.
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