Polyurea-crosslinked cationic acrylate copolymer for antibacterial coating

Nano-assemblies of phosphonium-functionalized diblock copolymers with fabulous antibacterial properties and relationships of structure-activity

“…It is well known that lysis caused by cations originates from the electrostatic interactions between them and the negatively charged cell envelope of bacteria, which leads to a breakdown of cell envelope structure and leakage of organoids and ultimately death. 35–37 In addition, with the increased ratio of St monomer, the A.R. value decreased significantly in both cases of E. coli and S. aureus , indicating a strong content dependence of antibacterial activity for the quaternary phosphonium cations (Fig.…”

Modification of relevant polymeric materials for medical applications and devices

“…Antibacterial properties of acrylic polymers for their direct use for implants and coatings have been researched thoroughly as acrylic polymers are intrinsically good substrates for bacterial adhesion and the formation of harmful bacterial biofilms. Typical modification of acrylic materials for antibacterial purposes is performed by chemical impregnation or copolymerization of antibacterial substances onto acrylic polymers (Gîfu et al, 2019; Wang et al, 2018; Zhou et al, 2019). One example of this is the functionalization of MMA with borneol acrylate to produce a copolymer for implants; in this work, the authors determined the excellent capability of the substrate to stop the adhesion of both Gram‐negative and Gram‐positive bacteria while still retaining biocompatibility for the use of implants, and this reaction is illustrated in Figure 9 (Sun et al, 2016).…”

Preparation and Formula Analysis of Anti-Biofouling Titania–Polyurea Spray Coating with Nano/Micro-Structure

“…It is important to add that, as the weight percentage continuously increased, the hydrophilic character from nano-TiO2 would gradually take the lead, and its internal agglomerating force would end up with rough coating surface morphology as compared to the original smooth finish. Moreover, the profile degree, force orientation, and wettability of TiO2-SPUA coatings would also be affected [34]. From the investigations of contact angle (CA) and surface energy It could be summarized that, as the nano-TiO 2 weight percentage continuously going high, the surface morphology would cohere hydrophobic and homogeneous surfaces along with drag reduction character at first.…”

“…The contact angle changed by the increase of TiO 2 wt.% was also indicated, respectively, in Figure 4a-c. It could be not only due to its small weight percentage and its minor texture structure on the coating surface, but its dispersion inside the polyurea base coatings and use of low surface energy defoaming agent could also influence the polar component, CA, SFE, and even biofilm test result [34]. Table 2.…”