A method for the obtaining of increased viscosity (3.6-52.5 cP) eye drops, containing amikacin-aminoglycoside antibiotic and as increasing viscosity agents: polivinyl alkohol, hydroxyethylcellulose or sodium hyaluronate was elaborated. Physicochemical and biological properties of these eye drops were determined.

We show that the N-terminal 'thermostabilizing domain' (TSD) of the xylanase, XynA, from the thermophilic bacterium Caldibacillus cellulovorans also acts as a xylan binding domain. Affinity electrophoresis experiments show that this TSD selectively binds soluble xylan and binds weakly to hydroxyethylcellulose. Based on this, and previously reported evidence, we propose that xylanase-associated ...

Ruminococcus flavefaciens adhered instantly to cellulose, while Fibrobacter succinogenes had the highest percentage of adherent cells after about 25 min of contact between bacteria and cellulose. Adhesion of R. flavefaciens was unaffected by high concentrations of sugars (5%), temperature, pH, oxygen, metabolic inhibitors, and lack of Na. In contrast, the attachment was affected by the removal ...