Artículos de revistas
Phema Hydrogels Synthesis, Kinetics And In Vitro Tests
Registro en:
1572-8943
Journal Of Thermal Analysis And Calorimetry. SPRINGER, n. 125, n. 1, p. 361 - 368.
1388-6150
WOS:000377790200035
10.1007/s10973-016-5329-6
Autor
Passos
MF; Dias
DRC; Bastos
GNT; Jardini
AL; Benatti
ACB; Dias
CGBT; Maciel
R
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Hydrogels of poly (2-hydroxyethyl methacrylate) (pHEMA) are suitable materials for medical applications. Synthesis, structural characterization, kinetic, physical properties and cell viability of these materials are reported in this article. The system was conducted via free radical polymerization in the absence of solvents or cross-linking agents. Hydrogels were obtained with excellent dimensional stability and high thermal stability (738 K), glass transition temperature of approximately 375 K and a degree of swelling of 66 +/- A 4 % in ethanol. The conversion of C=C double bond of the monomer 2-hydroxyethyl methacrylate was confirmed by Fourier transform infrared spectroscopy. Results showed dense and rough morphologies in the pHEMA, presence of high molecular interactions and good resistance to various organic solvents. In vitro tests showed excellent cell viability. The materials did not display cytotoxicity, and cells proliferated and adhered at a satisfactory rate on the hydrogel. These materials have great potential for biomedical application. pHEMA hydrogels are materials receiving great attention among researchers due to their ease of synthesis and biomedical application. This article demonstrates a new method of obtaining pHEMA hydrogels by bulk polymerization, in a single processing step and without the use of cross-linking agents. A kinetic study was evaluated, and the results of in vitro tests showed good cell proliferation. [GRAPHICS] . 125
361 368 Sao Paulo Research Foundation (FAPESP) [2008/57860-3, 2011/18525-7] National Institute of Science and Technology in Biofabrication (BIOFABRIS) National Council of Technological and Scientific Development (CNPq) [573661/2008-1] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)