Release of albumin from oligoester plastic matrices: effect of magnesium oxide and bivalent stearates.

Abstract:

:Biodegradable implantable matrices containing bovine serum albumin were prepared from oligoesters by melting, and subsequently tested on in vitro albumin release. The linear poly (DL-lactic acid) and the branched terpolymer of DL-lactic acid, glycolic acid, and mannitol were synthesized. Products were of similar molecular weight and possessed different thermal and swelling characteristics. Oligoesters were loaded with 4% albumin and plasticized by 30% triacetin. Other additives added into the matrices as albumin stabilizers were divalent stearates and magnesium oxide. The influences of oligomer molecules constitution, divalent ion stearates or magnesium oxide addition, and triacetin concentration on the albumin release were quantified. SDS-PAGE revealed protein hydrolysis during the dissolution tests.

journal_name

Drug Deliv

journal_title

Drug delivery

authors

Kladnícková I,Dittrich M,Klein T,Pokorová D

doi

10.1080/10717540500313125

keywords:

subject

Has Abstract

pub_date

2006-01-01 00:00:00

pages

25-30

issue

1

eissn

1071-7544

issn

1521-0464

pii

V6473632414243T0

journal_volume

13

pub_type

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