TY  - JOUR
A1  - Li, Mingjun
A1  - Schlaich, Christoph
A1  - Kulka, Michael Willem
A1  - Donskyi, Ievgen S.
A1  - Schwerdtle, Tanja
A1  - Unger, Wolfgang E. S.
A1  - Haag, Rainer
T1  - Mussel-inspired coatings with tunable wettability, for enhanced antibacterial efficiency and reduced bacterial adhesion
JF  - Journal of materials chemistry : B, Materials for biology and medicine
N2  - Over the last few decades, there has been a tremendous increase in research on antibacterial surface coatings as an alternative strategy against bacterial infections. Although there are several examples of effective strategies to prevent bacterial adhesion, the effect of the wetting properties on the coating was rarely considered as a crucial factor. Here we report an in-depth study on the effect of extreme wettability on the antibacterial efficiency of a silver nanoparticles ( AgNPs)-based coating. By controlling surface polymerization of mussel-inspired dendritic polyglycerol ( MI-dPG) and post-functionalization, surfaces with wetting properties ranging from superhydrophilic to superhydrophobic were fabricated. Subsequently, AgNPs were embedded into the coatings by applying in situ reduction using the free catechols-moieties present in the MI-dPG coating. The resulting polymer coatings exhibited excellent antibacterial ability against planktonic Escherichia coli ( E. coli) DH5a and Staphylococcus aureus ( S. aureus) SH1000. The antibacterial efficiency of the coatings was analyzed by using inductively coupled plasma mass spectrometry ( ICP-MS) and bacterial viability tests. Furthermore, the antifouling properties of the coatings in relation to the antibacterial properties were evaluated.
Y1  - 2019
U6  - https://doi.org/10.1039/c9tb00534j
SN  - 2050-750X
SN  - 2050-7518
VL  - 7
IS  - 21
SP  - 3438
EP  - 3445
PB  - Royal Society of Chemistry
CY  - Cambridge
ER  -