CEQUINOR   05415
CENTRO DE QUIMICA INORGANICA "DR. PEDRO J. AYMONINO"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Novel Biomaterial Useful for several Medical Purposes.Production and Characterization
Autor/es:
G. RUDERMAN; I.G. MOGILNER; E.J. TOLOSA; N. MASSA; M. GARAVAGLIA; J.R. GRIGERA
Lugar:
Montevideo, Uruguay
Reunión:
Congreso; International Conference of Biological Physics and 5th Southern Cone Biophysics Congress; 2007
Institución organizadora:
International Union of Pure and Applied Physics (IUPAP)
Resumen:
A novel biomaterial made of collagen, that would presumably be useful in
repairing hypertrophic injuries and cheloides is presented. This material is a
membrane made of the protein, ordered at a molecular level. Collagen is a
highly occurring protein in several body tissues and the molecule has a
cylindrical geometry. It first arranges in fibrils, then into fibers, to
finally conform very ordered aggregates like the skin. Each aggregate posses
its own pattern, according to the relevant function. Collagen membranes, with
no molecular order, have already been used for several purposes, even in
industry. Two alternative methods (patent Nº253249 of 1999 and AR048387 of
2006) of procedure to obtain soluble collagen and then the ordered membranes
are presented. These membranes were characterized by measuring several
physicochemical properties. UV and IR spectra are presented. They reveal a high
purity degree of the material. Electronic microscopy measurements and
interferometric experiments show a high level of order in the obtained
membranes. Measurements of Ts (shrinkage temperature) and density are also
presented. Permeability of the membranes for rifamycin, ascorbic acid and NaCl
were measured at 37ºC and the results are presented.