Staphylococcus epidermidis RP62A adhesion to chemically modified cellulose derivatives

• Type: Article in International Scientific Journal
• Date: 2001

Authors

Fonseca, AP (Author) Other; Granja, PL (Author) Other; Nogueira, JA (Author) Other; Oliveira, DR (Author) Other; Barbosa, MA (Author) FEUP

Journal

Title: Journal of Materials Science: Materials in Medicine

Vol. 12 No. 9

Pages: 543-548

ISSN: 0957-4530

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 14 Citations

ISI Web of Science

Scopus - 15 Citations

COMPENDEX

Scientific classification

FOS: Engineering and technology > Environmental biotechnology

CORDIS: Technological sciences > Engineering > Biomedical enginnering ; Technological sciences > Engineering > Biomaterial engineering

Other information

Authenticus ID: P-000-XD2

DOI: 10.1023/a:1011227915575

Abstract (EN): The adhesion of coagulase negative Staphylococcus epidermidis expressing capsular polysaccharide/adhesin (PS/A) to cellulose diacetate (CDA), as well as to primary reference low-density polyethylene, was assessed in vitro. Attached bacteria were released by gentle sonication and quantified as colony forming units. Surface free energy of cells and materials and the free energy of interaction between cells, each type of material and water molecules was calculated through contact angle measurement, also enabling the determination of materials surface hydrophobicity. The influence of CDA surface modification by deacetylation and phosphorylation on bacterial adhesion was studied. Chemical modifications of CDA by deacetylation and by phosphorylation were effective in lowering bacterial adhesion. (C) 2001 Kluwer Academic Publishers.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6