Title:Current Developments in Antimicrobial Surface Coatings for Biomedical Applications
Volume: 22
Issue: 18
Author(s): J.J.T.M. Swartjes, P.K. Sharma, T.G. van Kooten, H.C. van der Mei, M. Mahmoudi, H.J. Busscher and E.T.J. Rochford
Affiliation:
关键词:
抗菌剂,抗生素,抗菌肽,细菌粘附,纳米粒子,季胺类化合物,表面涂层
摘要: Bacterial adhesion and subsequent biofilm formation on material surfaces represent a serious
problem in society from both an economical and health perspective. Surface coating approaches to
prevent bacterial adhesion and biofilm formation are of increased importance due to the increasing
prevalence of antibiotic resistant bacterial strains. Effective antimicrobial surface coatings can be
based on an anti-adhesive principle that prevents bacteria to adhere, or on bactericidal strategies, killing
organisms either before or after contact is made with the surface. Many strategies, however, implement a multifunctional
approach that incorporates both of these mechanisms. For anti-adhesive strategies, the use of polymer chains,
or hydrogels is preferred, although recently a new class of super-hydrophobic surfaces has been described which demonstrate
improved anti-adhesive activity. In addition, bacterial killing can be achieved using antimicrobial peptides, antibiotics,
chitosan or enzymes directly bound, tethered through spacer-molecules or encased in biodegradable matrices,
nanoparticles and quaternary ammonium compounds. Notwithstanding the ubiquitous nature of the problem of microbial
colonization of material surfaces, this review focuses on the recent developments in antimicrobial surface coatings with
respect to biomaterial implants and devices. In this biomedical arena, to rank the different coating strategies in order of increasing
efficacy is impossible, since this depends on the clinical application aimed for and whether expectations are
short- or long term. Considering that the era of antibiotics to control infectious biofilms will eventually come to an end,
the future for biofilm control on biomaterial implants and devices is likely with surface-associated modifications that are
non-antibiotic related.