ACS Appl Mater Interfaces
January 2017
Freestanding ultrathin metallic nanosheets (FUMNSs) with atomic thickness attract extensive attention because they display remarkable advantages over their bulk counterparts by virtue of their large specific area, high aspect ratio, and unsaturated surface coordination. The state of the art of research on FUMNSs is reviewed here, wherein the important progress from the aspects of material category, synthetic strategy, and practical application are introduced, and it is demonstrated that FUMNSs will play an important role in the fields of optoelectrics, catalysis, and magnetism.
View Article and Find Full Text PDFObjective: To investigate the changes of proportion and suppression function of CD-4+ CD-25+ regulatory T cells in the peripheral blood of patients with aggressive periodontitis.
Methods: Flow cytometric analysis was used to detect the frequency of CD-4+ CD-25+ regulatory T cells in the peripheral blood of 16 patients with generalized aggressive periodontitis and 17 patients with chronic periodontitis, as well as 17 periodontal healthy controls. Furthermore, CD-4+ CD-25+ regulatory T cells and CD-4+ CD-25- T cells were separated from peripheral blood of each enrolling subject using magnetic cell sorting technology.
Zhonghua Kou Qiang Yi Xue Za Zhi
October 2007
Objective: To investigate different angle projection technique for clinical judgment of obturation quality of molars with multiple root canals.
Methods: Eighty-seven maxillary first molars with second mesiobuccal canal (MB2) and 105 mandibular first molars were selected. The canals were instrumented by Ni-Ti rotary instruments and obturated with lateral condensation technique.
Purpose: To evaluate the clinical effect of repair of lateral root canal perforation with mineral trioxide aggregate (MTA).
Methods: 18 teeth with root canal perforation were selected. The root canals were shaped and cleaned, and then obturated with gutta-percha before or after MTA was used to repair the perforation.