Autor segons l'article: Rajczak E; Tylkowski B; Constantí M; Haponska M; Trusheva B; Malucelli G; Giamberini M
Departament: Enginyeria Química
Autor/s de la URV: Constantí Garriga, Magdalena / Giamberini, Marta / Tylkowski, Bartosz
Paraules clau: Toxicity Therapy Tea powder Propolis Matrix Green tea Galla-chinensis Films Extracts Constituents Biological-properties Antibacterial activity Acrylic membrane propolis antibacterial activity acrylic membrane
Resum: © 2020 by the authors. We examine the behaviour of acrylic resin-based membranes containing natural antioxidants, such as Galla Chinensis tea powder extract (TP) and Taiwanese green propolis (TGP), in different concentrations ranging between 5 and 20 wt %. Membrane morphology was investigated by means of Environmental Scanning Electron Microscopy (ESEM), while the UV-curing reaction was monitored by Fourier-Transform Infra-red (FTIR) spectroscopy. In most cases Thermogravimetric (TG), Differential Scanning Calorimetric (DSC) and Dynamo-mechanical Thermal (DMT) analyses showed that the desirable characteristics of the UV-cured acrylic resin are not substantially altered by the presence of the organic fillers. The release kinetics of polyphenols and flavonoids, determined in water for TP-containing membranes (ETx) and in ethanol/water mixture (7:3 v/v) for TGP-containing ones (EPx), was satisfactory, reaching a plateau after 24 h. Finally, preliminary antibacterial tests against S. Epidermidis were performed on the membranes with higher additive amount and gave positive results for ET-type; on the contrary, no inhibitory effect was observed for the tested EP-type membranes.
Àrees temàtiques: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 2073-4360
Adreça de correu electrònic de l'autor: bartosz.tylkowski@urv.cat magdalena.constanti@urv.cat marta.giamberini@urv.cat
Identificador de l'autor: 0000-0002-4163-0178 0000-0002-3547-4199 0000-0001-8278-3552
Data d'alta del registre: 2023-02-19
Volum de revista: 12
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.mdpi.com/2073-4360/12/2/358
Referència a l'article segons font original: Polymers. 12 (2):
Referència de l'ítem segons les normes APA: Rajczak E; Tylkowski B; Constantí M; Haponska M; Trusheva B; Malucelli G; Giamberini M (2020). Preparation and characterization of UV-curable acrylic membranes embedding natural antioxidants. Polymers, 12(2), -. DOI: 10.3390/polym12020358
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.3390/polym12020358
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2020
Tipus de publicació: Journal Publications