Purpose. To investigate and compare the effect of three analytical methods, hydrogen
bromide titrimetry (HBr titrimetry), infrared spectroscopy (IR spectroscopy), and first …

An increase in the depolymerization of chitosan was found with an increased concentration
of sodium perborate. Acetic anhydride was added to reacetylated chitosan in a molar ratio …

In order to improve the bioactivity and mechanical properties of hydroxyapatite (HAp),
chitosan (Chi) was in situ combined into HAp to fabricate a composite scaffold by a …

The main aim of the present study was to produce natural chitosan with different
deacetylation degree from shrimp shells. Three deacetylation degrees of chitosan were …

Polyhydroxybutyrate/chitosan/calcium phosphate composites are interesting biomaterials for
utilization in regenerative medicine and they may by applied in reconstruction of deeper …

Chitosan samples with different molecular weights (Mw) and degree of deacetylation (DD)
were prepared by controlling operating conditions throughout the multistage alkali treatment …

The use of titration technique is proposed as an alternative method to determine the degree
of deacetyletion (DD) in chitin/chitosan samples, based in both volumes taken before and …

In recent years, there has been a great demand for artificial materials for biomedical
applications, especially to bone growth. In the present study, the in vitro bioactivity of …

Hydroxyethyl chitosan (HE-chitosan) is a water-soluble derivative of chitosan with many
apparent biological properties. For example, it is non-toxic and rapidly biodegradable …

A variety of biomaterials have been introduced as potential substrates for cartilage repair.
One such candidate is chitosan, which shares some characteristics with glycosaminoglycan …