- Integrated approach to surfactant environmental safety assessment: Fast atom bombardment mass spectrometry and liquid scintillation counting to determine the mechanism and kinetics of surfactant biodegradation
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Fast atom bombardment man spectrometry and liquid scintillation counting have been used to study the biodegradation of a novel cationic surfactant In live sludge. The rates of primary biodegradation and the extent of complete miner allzation were determined. Furthermore, an Intermediate degradation product was Identified and Its rates of formation and subsequent removal have been established. These data find utility In assessing the environmental safety of the surfactant and the accuracy of various environmental fate models.
- Simms,Woods,Walley,Keough,Schwab,Larson
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- ANTIMICROBIAL POLYMERS AND THEIR USES
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Polymers with non-leaching antimicrobial activity and their use as surface coatings or bulk resins for medical devices. The antimicrobial polymers are prepared with antimicrobial moieties covalently bonded to a polymer chain end or to a polymer backbone at a side chain end. The antimicrobial moiety-containing endgroups include surface active (or surface assembling) moieties which promote enrichment of antimicrobial endgroups at the polymer surface and thus formation of an antimicrobially active surface. Polymers with built-in antimicrobial endgroups can be used as bulk resins, as antimicrobial additives, or as infection preventative coatings in the manufacture of medical devices (e.g., catheters, vascular access devices, peripheral lines, IV sites, drains, gastric feeding and tubes, and other implantable devices). Such materials can also be used as antimicrobial and antifouling coatings on structures in contact with microorganism in environments that require control of biofilm formation, such as marine products.
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(2009/12/28)
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