2026-08-22T00:38:21Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1170802025-01-31T01:04:14Zcom_20.500.14352_14col_20.500.14352_15

Preparation, modification and cellular evaluation of PEG–PEGd supports with titania nanoparticle loads Sanchez Vaquero, Vanessa Muñoz Noval, Álvaro Tejera Sanchez, Nuria Pérez Roldan, Maria Jesus Valsesia, Andrea Ceccone, Giaccomo Garcia Ruiz, Josefa Predestinación Manso Silvan, Miguel Rossi, Francois Polyethylene glycol (PEG) films with PEG diacrylate (PEGd) have been prepared comprising a Ti alkoxyde that turns the filminto a nano-hybrid with potential interest for the production of controlled bioadhesive surfaces. Precursor sols were cast ontoSi (100) surfaces, producing conformed films. Modification of such surfaces was performed by exposing the surfaces to UVlight (365 nm) at different exposure times. The surface of the hybrid films was characterized by using atomic force microscopyand X-ray photoelectron spectroscopy. It is concluded that the UV exposure induces a densification of the film and an in-filmcoalescence of the titania nanoparticles. This had a direct effect on the wettability of the films as determined by water contactangle measurements. Both as-cast and UV modified surfaces were proved to be biocompatible as deduced from nuclearimmunocytochemistry proliferation assays. 2025-01-30T07:52:41Z 2025-01-30T07:52:41Z 2025-01-30T07:52:41Z 2010-03-29 journal article https://hdl.handle.net/20.500.14352/117080 0142-2421 10.1002/sia.3287 1096-9918 eng info:eu-repo/grantAgreement/MICINN//MAT2008-06858-C02-01/ES/DISEÑO DE PATRONES POR HACES DE IONES EN MATERIALES PARA APLICACIONES OPTOELECTRONICAS Y BIOFUNCIONALES. PREPARACION Y CARACTERIZACION CON HACES DE IONES/ Vaquero, V.S., Noval, A.M., Sánchez, N.T., Pérez Roldán, M.J., Valsesia, A., Ceccone, G., García Ruiz, J.P., Manso Silván, M. and Rossi, F. (2010), Preparation, modification and cellular evaluation of PEG–PEGd supports with titania nanoparticle loads. Surf. Interface Anal., 42: 481-485. https://doi.org/10.1002/sia.3287 http://creativecommons.org/licenses/by-nc-nd/4.0/ restricted access Attribution-NonCommercial-NoDerivatives 4.0 International Wiley