期刊
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
卷 12, 期 5, 页码 -出版社
NATL INST MATERIALS SCIENCE
DOI: 10.1088/1468-6996/12/5/055007
关键词
nitric oxide release; polymer; photoinitiated; controlled release
资金
- National Science Foundation, Division of Materials Research [DMR-0906709-2009]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0906709] Funding Source: National Science Foundation
Nitric oxide (NO) plays a critical role in the regulation of a wide variety of physiological processes. It is a potent inhibitor of platelet adhesion and aggregation, inhibits bacterial adhesion and proliferation, is implicated in mediating the inflammatory response toward implanted devices, plays a role in tumor growth and proliferation, and is a neurotransmitter. Herein, we describe the synthesis and NO-release properties of a modified polydimethylsiloxane that contains S-nitroso-N-acetyl-D-penicillamine covalently attached to the cross-linking agent (SNAP-DMS). Light from a C503B-BAN-CY0C0461 light-emitting diode (470 nm) was used as an external trigger to allow precise control over level and duration of NO release ranging from a surface flux of zero to approximately 3.5 x 10(-10) mol cm(-2) min(-1). SNAP-PDMS films stored in the dark released NO after 297 days, indicating the long-term stability of SNAP-PDMS.
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