期刊
MACROMOLECULAR RAPID COMMUNICATIONS
卷 30, 期 1, 页码 57-63出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/marc.200800578
关键词
biomaterials; coatings; immobilization; surface engineering; surface gradient
资金
- NSF [DMR-0449462]
- Major Instrumentation [DMR-042078S]
- NIH/NIBIB [5 T32 EB005582-02]
Chemical vapor deposition (CVD) co-polymerization was used to fabricate polymer coatings, which comprise of reactive surface composition gradients. Two functionalized derivatives of [2.2]paracyclophane were fed into a two-source CVD system at a 130 0 angle, then copolymerized and deposited as a polymer gradient. Infrared and X-ray photoelectron spectroscopy (XPS) confirmed the compositional changes within the bulk polymer and at the surface. By manipulating process parameters, gradients of tailored compositional slope can be deposited on a wide range of substrates. We also were able to selectively immobilize fluorescence-labeled ligands onto the reactive polymer gradients, making CVD-based gradient surfaces a flexible platform for fabricating biomolecular substrates.
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