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Matching the Cellulose/Silica Films Surface Properties for Design of Biomaterials That Modulate Extracellular Matrix.
Dobos, Adina-Maria; Ursu, Elena-Laura; Gradinaru, Luiza-Madalina; Dobromir, Marius; Filimon, Anca.
Afiliación
  • Dobos AM; Polycondensation and Thermostable Polymers Department, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley No. 41A, 700506 Iasi, Romania.
  • Ursu EL; Centre of Advanced Research in Bionanoconjugates and Biopolymers Department, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley No. 41A, 700506 Iasi, Romania.
  • Gradinaru LM; Polyaddition and Photochemistry Laboratory, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley No. 41A, 700506 Iasi, Romania.
  • Dobromir M; Department of Exact and Natural Sciences, Institute of Interdisciplinary Research, "Alexandru Ioan Cuza" University, 11 Carol I Blvd., 700506 Iasi, Romania.
  • Filimon A; Polycondensation and Thermostable Polymers Department, "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley No. 41A, 700506 Iasi, Romania.
Membranes (Basel) ; 11(11)2021 Oct 29.
Article en En | MEDLINE | ID: mdl-34832070
The surface properties of composite films are important to know for many applications from the industrial domain to the medical domain. The physical and chemical characteristics of film/membrane surfaces are totally different from those of the bulk due to the surface segregation of the low surface energy components. Thus, the surfaces of cellulose acetate/silica composite films are analyzed in order to obtain information on the morphology, topography and wettability through atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and contact angle investigations. The studied composite films present different surface properties depending on the tetraethyl orthosilicate (TEOS) content from the casting solutions. Up to a content of 1.5 wt.% TEOS, the surface roughness and hydrophobicity increase, after which there is a decrease in these parameters. This behavior suggests that up to a critical amount of TEOS, the results are influenced by the morphology and topographical features, after which a major role seems to be played by surface chemistry-increasing the oxygenation surfaces. The morphological and chemical details and also the hydrophobicity/hydrophilicity characteristics are discussed in the attempt to design biological surfaces with optimal wettability properties and possibility of application in tissue engineering.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Membranes (Basel) Año: 2021 Tipo del documento: Article País de afiliación: Rumanía Pais de publicación: Suiza
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Membranes (Basel) Año: 2021 Tipo del documento: Article País de afiliación: Rumanía Pais de publicación: Suiza