挺好的一个研究：
Langmuir. 2012 Aug 21;28(33):12134-9. Epub 2012 Aug 9.
New bactericidal surgical suture coating.
Li Y, Kumar KN, Dabkowski JM, Corrigan M, Scott RW, Nüsslein K, Tew GN.
Source
Department of Polymer Science & Engineering, ‡Department of Microbiology, ∥Department of Veterinary &Animal Science, and ⊥Molecular & Cellular Biology Program, University of Massachusetts , Amherst, Amherst, Massachusetts 01003, United States.
Abstract
This paper demonstrates the effectiveness of a new antimicrobial suture coating. An amphiphilic polymer, poly[(aminoethyl methacrylate)-co-(butyl methacrylate)] (PAMBM), inspired by antimicrobial peptides, was bactericidal against S. aureus in time-kill experiments. PAMBM was then evaluated in a variety of polymer blends using the Japanese Industrial Standard (JIS) method and showed excellent antimicrobial activity at a low concentration (0.5 wt %). Using a similar antimicrobial coating formula to commercial Vicryl Plus sutures, disk samples of the coating material containing PAMBM effectively killed bacteria (98% reduction at 0.75 wt %). Triclosan, the active ingredient in Vicryl Plus coatings, did not kill the bacteria. Further Kirby-Bauer assays of these disk samples showed an increasing zone of inhibition with increasing concentration of PAMBM. Finally, the PAMBM-containing coating was applied to sutures, and the morphology of the coating surface was characterized by SEM, along with Vicryl and uncoated sutures. The PAMBM-containing sutures killed bacteria more effectively (3 log(10) reduction at 2.4 wt %) than Vicryl Plus sutures (0.5 log(10) reduction).
PMID: 22877364 [PubMed - in process] |
发表于 2012-9-3 08:27
发表于 2012-9-3 09:10
发表于 2012-9-3 17:23
