Advance on Research for Bacterial Cellulose.

Composite Hydrogels of Bacterial Cellulose - carboxymethyl Cellulose for Drug Release

Bacterial cellulose (BC) is a suitable material for biomedical applications due to its remarkable proprieties, such us: biodegradability, biocompatibility and ready availability. In this paper the swelling and drug release profiles from bacterial cellulosecarboxymethyl cellulose (BC-CMC) composite hydrogels were investigated, in the aim to use such systems in controlled drug delivery field. Ibu...

Bacterial Cellulose-Hydroxyapatite Nanocomposites for Bone Regeneration

The aim of this study was to develop and to evaluate the biological properties of bacterial cellulose-hydroxyapatite (BC-HA) nanocomposite membranes for bone regeneration. Nanocomposites were prepared from bacterial cellulose membranes sequentially incubated in solutions of CaCl(2) followed by Na(2)HPO(4). BC-HA membranes were evaluated in noncritical bone defects in rat tibiae at 1, 4, and 16 ...

Bacterial Cellulose for Skin Repair Materials

As is well-known, cellulose is one of the most abundant biodegradable materials in nature and has been the topic of extensive investigations in macromolecular chemistry. It is of great importance to explore renewable natural polymeric materials to solve problems such as population growth, the energy crisis, environment polution, etc. Presently, human beings can produce cellulose by four means. ...

New research on psychiatric advance directives

Background Psychiatric advance directives (PADs) provide a legal means for competent individuals to refuse or consent to future mental health treatment during periods of decisional incapacity. Previous studies have shown high potential demand for PADs but low rates of completion in the United States, despite new laws authorizing PADs in over 20 states. This paper reports the results of the firs...

Bacterial Cellulose-Based Biomimetic Composites