(C) 2010 Wiley Periodicals, MI-503 research buy Inc. J Appl Polym Sci 117: 524-533, 2010″
“Objective. This study evaluated histopathologically the response of pulp and periradicular tissues after pulp capping with an all-in-one self-etching adhesive system in dogs’ teeth.
Study design. Forty teeth of 4 dogs were assigned to 3 groups according to the pulp capping material: G1 (n = 20): self-etching adhesive system; G2 (n = 10): Ca(OH)(2); G3 (n = 10): zinc oxide-eugenol. The animals were killed
7 and 70 days after pulp capping. The pieces containing the pulp-capped teeth were removed and processed for histologic analysis.
Results. At 7 days, no dentin bridge formation was observed; G1 and G3 exhibited inflammatory pulpal alterations, whereas G2 presented only mild inflammatory infiltrate in the pulp tissue adjacent to the capping material, the remainder being intact. At 70 days, no specimen in G1 or G3 presented dentin
bridge formation. The remaining pulp tissue exhibited severe inflammatory alterations and areas of necrosis. In G2, all specimens showed dentin bridge formation and absence of inflammation and mineralized tissue resorption. No bacteria were identified using Brown and Brenn staining techniques in all 3 groups at any observation period.
Conclusion. According to the conditions of this study, direct pulp capping with the self-etching adhesive system did not allow pulp tissue repair and failed histopathologically in 100% of the cases. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009; 108: e34-e40)”
“We report on peculiar magnetic hysteresis behavior of Ru(0.25)Cr(0.75)O(2) Fer-1 thin films. We describe three unusual magnetic phenomena Metabolism inhibitor inherent to this material; (i) intrinsic positive exchange bias in a single phase epitaxial thin film ferrimagnet with the absence of a clear and distinct
magnetic-magnetic interface, (ii) field modulation of the shifted M(H) loop along the field axis direction, and (iii) inverted hysteresis loops in which the overall area of the loop is nearly zero over the entire field cycle. These results can be understood within the context of a very unusual interface of the epitaxial film with the TiO(2) (001) substrate. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3374639]“
“A facile method for surface-initiated atom transfer radical polymerization (ATRP) on the anodic aluminum oxide (AAO) membranes has been developed. The AAO membrane was firstly functionalized by poly (dopamine), the bromoalkyl initiator was then immobilized on the poly(dopamine) functionalized AAO membrane surface in a two-step solid-phase reaction, followed by ATRP of acrylic acid in a aqueous solution. The poly (acrylic acid) (PAAc)-grafted AAO membranes were characterized by X-ray photoelectron spectroscopy, fourier transform infrared spectroscopy and scanning electron microscopy. The XPS and FTIR results indicated that PAAc was successfully grafted on the AAO membrane surface.