(Oral Surg Oral Med Oral Pathol

Oral Radiol Endod 2010; 109: 385-391)”
“This study adds to a previous morphological work (paper I) with further characterization of the developed poly(lactic acid) (PLA) blends containing amylopectin, which made use of an ethylene-vinyl alcohol copolymer (EVOH) as a melt-compoundable carrier for the polysaccharide in the biopolyester. The effect of using glycerol PLX-4720 chemical structure as compatibilizer was also characterized. Water and oxygen transport parameters, mechanical properties, and comparative biodegradability tests were evaluated for the blends. From the results, the barrier properties to oxygen were only seen to improve at 0% RH and mostly for the PLA-EVOH blends, which furthermore showed a positive deviation from the rule of mixtures. At

high relative humidity, the blends showed somewhat poorer barrier performance due to the comparatively higher improvement in barrier of the neat PLA at 80% RH. Interestingly, room temperature biodegradability testing suggested that low additions of the blending elements seemed to facilitate the biodegradability of the biopolyester. Despite the fact that properties Citarinostat were not so dramatically improved, incorporating renewable resources within PLA seems as a potentially viable route to reduce PLA supply dependency, retain good optical properties and to overcome some drawbacks associated to the use of this biopolyester. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 119: 3708-3716, 2011″
“A strong perpendicular magnetic selleck PD-1 抑制剂 anisotropy (PMA) is formed in an MgO/CoFeB/Pd unit structure for an MgO-based magnetic tunnel junction. The most important factors for a strong PMA are the composition and the thickness of the CoFeB layer. A strong PMA is observed for the samples fabricated using the CoFeB target with a high Co/Fe ratio and annealed at 300 degrees C for 1 or 2 h. The PMA is formed up to a CoFeB layer thickness as thick as 2.5 nm, although the strongest PMA, with an out-of-plane coercivity of 1068 Oe and a PMA energy density of 2.7 X 10(6) erg/cc, is seen at a CoFeB thickness of 2.0 nm. The systematic study indicates that the PMA is attributed not to the interface effects

but rather to the bulk effect of forming a Pd-rich, Co-Pd alloy, as confirmed by x-ray photoelectron spectroscopy depth profile and x-ray diffraction experiments. The thick CoFeB layer is expected to reduce the template effect from the Pd layer during the annealing, and therefore increase the tunneling magnetoresistance of the MgO-based magnetic tunnel junction. (c) 2010 American Institute of Physics. [doi: 10.1063/1.3516497]“
“Objective. In vivo studies of antimicrobial PDT in animal models of oral candidosis are scarce and the association of porphyrin and LED light has not been evaluated for in vivo photoinactivation of Candida. In this study the effectiveness of photodynamic therapy (PDT) on the inactivation of Candida albicans in vivo was evaluated.

Study design.