BIOCOMPATIBLE DEGRADABLE POLYMERIC BIOCOMPOSITES WITH POTENTIAL BIOMEDICAL APPLICATION AND PROCESS FOR PREPARING THE SAME

BIOCOMPATIBLE DEGRADABLE POLYMERIC BIOCOMPOSITES WITH POTENTIAL BIOMEDICAL APPLICATION AND PROCESS FOR PREPARING THE SAME

The invention relates to a biocompatible and degradable polymeric composite with medical application and to a process for preparing the same. According to the invention, the composite comprises 97...98% polyhydroxybutirate-co-valerate, 1% vitamin E and 1...2% bacterial cellulose, the percentage bein...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GASPAR-PINTILESCU ALEXANDRA, SECIU ANA-MARIA, STEFAN LAURA MIHAELA, GROSU ELENA, LUPESCU IRINA, PREDA PETRUŢA, ZAHARIA CĂTĂLIN, STĂNESCU PAUL OCTAVIAN, CĂŞĂRICĂ ANGELA, RÂPĂ MARIA
Format: Patent
Sprache:eng ; rum
Schlagworte:
BEER
BIOCHEMISTRY
CHEMISTRY
ENZYMOLOGY
FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE
METALLURGY
MICROBIOLOGY
MUTATION OR GENETIC ENGINEERING
SPIRITS
VINEGAR
WINE
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Beschreibung
Zusammenfassung:The invention relates to a biocompatible and degradable polymeric composite with medical application and to a process for preparing the same. According to the invention, the composite comprises 97...98% polyhydroxybutirate-co-valerate, 1% vitamin E and 1...2% bacterial cellulose, the percentage being expressed by mass. The process, as claimed by the invention, consists in processing the raw material in melt, at a temperature of 180°C, mixing them for 6 min, at a rotation speed of 40 rpm, followed by the hot pressing of the mixture at 185°C at a pressure of 147 bar, to result in stable films of 200x200x0.1 mm, having a cellular viability of 86.67...94% in 24 h, exhibiting cytocompatibility, biocompatibility and time-controlled degradability.