期刊
ANALYST
卷 127, 期 10, 页码 1289-1292出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b205801b
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资金
- NATIONAL CANCER INSTITUTE [R24CA084625] Funding Source: NIH RePORTER
- NATIONAL HUMAN GENOME RESEARCH INSTITUTE [R01HG001499] Funding Source: NIH RePORTER
- NCI NIH HHS [CA84625] Funding Source: Medline
- NHGRI NIH HHS [HG01499] Funding Source: Medline
Poly( carbonate), PC, surfaces are chemically modified by treatment with sulfur trioxide gas. Sulfur trioxide gas sulfonates the aromatic rings of the poly( carbonate) surfaces, making the surfaces more hydrophilic. Sulfonation of the poly( carbonate) surface is confirmed by infrared spectroscopy. The modified polymer surfaces are found to be smoother in comparison to their unmodified counterparts, as noted by scanning force microscopy. The effects of the surface modification on electroosmotic flow are studied at a pH range of 4-10. The electroosmotic flow in sulfonated poly( carbonate) microchannels was found to be significantly higher than that in unmodified poly( carbonate) microchannels at pH values below 8.
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