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Titolo:
12-crown-4-ether and tri(ethylene glycol) dimethyl-ether plasma-coated stainless steel surfaces and their ability to reduce bacterial biofilm deposition
Autore:
Denes, AR; Somers, EB; Wong, ACL; Denes, F;
Indirizzi:
Univ Wisconsin, Food Res Inst, Madison, WI 53706 USA Univ Wisconsin Madison WI USA 53706 Food Res Inst, Madison, WI 53706 USA Univ Wisconsin, Ctr Plasma Aided Mfg, Madison, WI 53706 USA Univ Wisconsin Madison WI USA 53706 asma Aided Mfg, Madison, WI 53706 USA
Titolo Testata:
JOURNAL OF APPLIED POLYMER SCIENCE
fascicolo: 14, volume: 81, anno: 2001,
pagine: 3425 - 3438
SICI:
0021-8995(20010929)81:14<3425:1ATGDP>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
ADHESION; POLYMERIZATION; BIOMATERIAL; PEG;
Keywords:
bacterial attachment; biofilm formation; cold-plasma-induced surface modification; PEG-like structures; surface chemistry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Wong, ACL Univ Wisconsin, Food Res Inst, 1925 Willow Dr, Madison, WI 53706USA Univ Wisconsin 1925 Willow Dr Madison WI USA 53706 WI 53706 USA
Citazione:
A.R. Denes et al., "12-crown-4-ether and tri(ethylene glycol) dimethyl-ether plasma-coated stainless steel surfaces and their ability to reduce bacterial biofilm deposition", J APPL POLY, 81(14), 2001, pp. 3425-3438

Abstract

It has been demonstrated that surfaces coated with poly(ethylene glycol) (PEG) are capable of reducing protein adsorption, bacterial attachment, and biofilm formation. In this communication cold-plasma-enhanced processes were employed for the deposition of PEG-like structures onto stainless steel surfaces. Stainless steel samples were coated under 1,4,7,10-tetraoxacyclododecane (12-crown-4)-ether and tri(ethylene glycol) dimethyl ether (triglyme)-radio frequency (RF)-plasma conditions. The chemistry and characteristicsof plasma-coated samples and biofilms were investigated using electron spectroscopy for chemical analysis (ESCA), atomic force microscopy (AFM), and water contact angle analysis. ESCA analysis indicated that the plasma modification resulted in the deposition of PEG-like structures, built up mainly of -CH2-CH2-O- linkages. Plasma-coated stainless steel surfaces were more hydrophilic and had lower surface roughness values compared to those of unmodified substrates. Compared to the unmodified surfaces, they not only significantly reduced bacterial attachment and biofilm formation in the presenceof a mixed culture of Salmonella typhimurium, Staphylococcus epidermidis, and Pseudomonas fluorescens but also influenced the chemical characteristics of the biofilm. Thus, plasma deposition of PEG-like structures will be ofuse to the food-processing and medical industries searching for new technologies to reduce bacterial contamination. (C) 2001 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 15:48:54