STUDIES OF GENTAMYCIN ADSORPTION ON CHITOSAN
Journal Title: Progress on Chemistry and Application of Chitin and its Derivatives - Year 2013, Vol 0, Issue
Abstract
Chitosan as a dietary supplement has been used in the treatment of obesity due to its capability of binding bioactive compounds. A molecule of a cationic polymer, such as chitosan, may bind gentamycin. The aim of the study was to determine the binding capability of Gentamycin by chitosan’s contained in weight-loss supplements. The Gentamycin absorption was investigated by means of a dynamic method in a biopharmaceutical model imitating in vitro conditions including the required level of nutrients. Mean absorption of gentamycin by chitosan ranged from 2.1% to 34.1% depending on the environmental pH. The highest absorption rate was observed at above pH 6.8. Concluding, the studies confirmed that the investigated gentamycin interact with chitosan, what leads to decrease in their amount and affects the bioavailability of the drugs.
Authors and Affiliations
Jan Meler, Bożena Grimling, Janusz Pluta
SURGICAL BIOCOMPOSITES WITH CHITOSAN
Reported are investigations in the formulation and preparation method of hydroxyapatite composites in form of glue, sponge and shaped products. Osteosynthesis ability, mechanical properties susceptiblity to biodegradatio...
STUDIES ON ADSORPTION CHLORAMFENICOL ON CHITOSANS IN PHARMACEUTICAL “IN VITRO” MODEL
In clinical practice in the treatment of obesity, uses several natural macromolecular compounds, whose functioning is based on supporting the weight loss. In use of dietary supplements containing chitosan, sometimes reac...
INFLUENCE OF THE INTERMOLECULAR INTERACTION ON PHYSICO-CHEMICAL PROPERTIES OF CHITOSAN/HYALURONIC ACID BLENDS
In the present study, the results of viscosity measurements in dilute solutions of chitosan (Ch) with hyaluronic acid (HA) are presented. Chitosan is blended with hyaluronic acid in aqueous 0.1M CH3COOH/0.2M NaCl and 0.3...
DIFFERENTIAL EFFECTS OF LOW AND HIGH MOLECULAR WEIGHT CHITOSAN ADMINISTERED INTRAPERITONEALLY TO MICE INFECTED WITH HELIGMOSOMOIDES POLYGYRUS
Aim of the study was to compare the effect of different molecular weight chitosan on activity of peritoneal cells of mice during immunosupression caused by adult stages of Heligmosomoides polygyrus. We observed that intr...
ChITOSAN DICHLOROACETIC ACID SALTS
The salts of dichloroacetic acid were obtained from chitosans of different deacetylation degrees (69÷97%) and viscosity-average molecular weights (61÷327 kDa). The mole ratio of dichloroacetic acid to amine groups was 1....