期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 42, 页码 23439-23444出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b04957
关键词
nanoimprint; biomimetics; superhydrophobic; wrinkle; SLIPS; low cost
资金
- NSF Material Research Science and Engineering Center on Polymers at UMass (MRSEC) [DMR-0213695]
- UMass Center for Hierarchical Manufacturing (CHM), a NSF Nanoscale Science and Engineering Center [CMMI-1025020]
- Panasonic Boston Laboratory
- National Research Service Award from National Institutes of Health [T32 GM008515]
The fabrication and advanced function of large area biomimetic superhydrophobic surfaces (SHS) and slippery lubricant-infused porous surfaces (SLIPS) are reported. The use of roll-to-roll nanoimprinting techniques enabled the continuous fabrication of SHS and SLIPS based on hierarchically wrinkled surfaces. Perfluoropolyether hybrid molds were used as flexible molds for roll-to-roll imprinting into a newly designed thiol-ene based photopolymer resin coated on flexible polyethylene terephthalate films. The patterned surfaces exhibit feasible superhydrophobicity with a water contact angle around 160 without any further surface modification. The SHS can be easily converted into SLIPS by roll-to-roll coating of a fluorinated lubricant, and these surfaces have outstanding repellence to a variety of liquids. Furthermore, both SHS and SLIPS display antibiofouling properties when challenged with Escherichia coli K12 MG1655. The current article describes the transformation of artificial biomimetic structures from small, lab-scale coupons to low-cost, large area platforms.
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