Chitosan-tapioca starch based films reduced Zygosaccharomyces bailii external spoilage in a semisolid product but were not effective against Lactobacillus spp. The results suggest that antibacterial action depended on the application technique, due to the fact that chitosan is more available in a coating solution than in a film matrix. Interactions between chitosan-starch and/or KS could affect film physical properties and ATM inhibitor the antimicrobial activity of chitosan. The addition of chitosan reduced water vapor permeability and solubility of starch films. (C) 2009 Elsevier Ltd. All rights reserved.”
“Novel core-shell latices
with a partially crosslinked hydrophilic polymer core and a hard hydrophobic shell of polystyrene were prepared to improve optical properties of coated paper Such as gloss and brightness. These core-shell latices were prepared by sequential Autophagy inhibitor concentration addition of a monomer mixture of styrene, n-butylacrylate and methacrylic acid. Different crosslinkers were
used to form the polymer core and in the second stage styrene to form the hard shell component. In addition, attempts were made to further improve optical properties by introducing a new polymerizable optical brightener, i.e., 1-[(4-vinylphenoxy)-methyl]-4-(2-phenylethylenyl)benzene during polymerization either into the core or into the shell. The prepared core-shell latex particles were used as specialty plastic pigments for paper coating together with kaolin as the primary pigment. PHA-739358 nmr The runability of paper coating formulation by either using a laboratory scale Helicoater or pilot
scale JET-coating machine was very good. The produced coated papers were printed on both sides employing a heat set web offset (HSWO) printer to study the quality of image reproduction in terms of print gloss, print mottle, print through, etc. The core-shell latices improved the overall print quality. Furthermore, the results demonstrated that by optimizing polymer composition one can significantly enhance the optical properties and surface smoothness of coated paper. (C) 2009 Wiley Periodicals, Inc. J Appl Polym Sci 112: 1265-1270, 2009″
“Aims: The question if it is possible and safe to anesthetize children for short procedures without intravenous (IV) access provokes strong opinions among pediatric anesthetists. However, only limited data are available to support either side of the arguments. This pediatric university hospital provides anesthesia to a community dental service, led by staff anesthesiologists. A rapid turnover system based on inhalational induction and maintenance of anesthesia without mandatory IV access has been employed since 2005. Methods: A retrospective service analysis was performed to identify the incidence of adverse anesthesia events. Results: A total of 6440 children with an average (-/+ sd) age of 8.1 (+/- 4.1) years and weight of 29.6 (+/- 13.