Hydrophilic Antimicrobial Coatings for Medical Leathers from Silica-Dendritic Polymer-Silver Nanoparticle Composite Xerogels

被引：10

作者：

Arkas, Michael ^{[1
]}

Kythreoti, Georgia ^{[1
]}

Favvas, Evangelos P. ^{[1
]}

Giannakopoulos, Konstantinos ^{[1
]}

Mouti, Nafsika ^{[1
]}

Arvanitopoulou, Marina ^{[1
]}

Athanasiou, Ariadne ^{[1
]}

Douloudi, Marilina ^{[1
]}

Nikoli, Eleni ^{[1
]}

Vardavoulias, Michail ^{[2
]}

Dimitriou, Marios ^{[3
]}

Karakasiliotis, Ioannis ^{[3
]}

Ballen, Victoria ^{[4
]}

Gonzalez, Sara Maria Soto ^{[4
]}

机构：

[1] NCSR Demokritos, Inst Nanosci Nanotechnol, Patriarchou Gregoriou St, Athens 15310, Greece

[2] PYROGENESIS SA, Technol Pk 1,Athinon Ave, Attica 19500, Greece

[3] Democritus Univ Thrace, Sch Med, Lab Biol, Alexandroupolis 68100, Greece

[4] Univ Barcelona, Hosp Clin, ISGlobal, Barcelona 08036, Spain

来源：

TEXTILES | 2022年 / 2卷 / 03期

关键词：

dendrimers; hyperbranched; poly (ethylene imine); xerogels; antibacterial; SARS-CoV-2; COVID-19; virus; antibiofilm; antiviral; water permeability; surface hydrophilicity; HYPERBRANCHED POLYMERS; DENDRONIZED POLYMERS; NATURAL LEATHER; IN-VITRO; DENDRIMERS; WATER; NANOSPHERES; CHEMISTRY; CHITOSAN; NANOCOMPOSITE;

D O I：

10.3390/textiles2030026

中图分类号：

TB3 [工程材料学]; TS1 [纺织工业、染整工业];

学科分类号：

0805 ; 080502 ; 0821 ;

摘要：

Hybrid organic-inorganic (dendritic polymer-silica) xerogels containing silver nanoparticles (Ag Nps) were developed as antibacterial leather coatings. The preparation method is environmentally friendly and is based on two biomimetic reactions. Silica gelation and spontaneous Ag Nps formation were both mediated by hyperbranched poly (ethylene imine) (PEI) scaffolds of variable Mw (2000-750,000). The formation of precursor hydrogels was monitored by dynamic light scattering (DLS). The chemical composition of the xerogels was assessed by infrared spectroscopy (IR) and energy-dispersive X-ray spectroscopy (EDS), while the uniformity of the coatings was established by scanning electron microscopy (SEM). The release properties of coated leather samples and their overall behavior in water in comparison to untreated analogs were investigated by Ultraviolet-Visible (UV-Vis) spectroscopy. Antibacterial activity was tested against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus, and antibiofilm properties against Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, Acinetobacter baumannii, and Enterococcus faecalis, while the SARS-CoV-2 clinical isolate was employed for the first estimation of their antiviral potential. Toxicity was evaluated using the Jurkat E6.1 cell line. Finally, water-contact angle measurements were implemented to determine the enhancement of the leather surface hydrophilicity caused by these composite layers. The final advanced products are intended for use in medical applications.

引用

页码：464 / 485

页数：22

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