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| 1 | Enhanced oxidation and graphitization resistance of polycrystalline diamond sintered with Ti-coated diamond powders显示文摘To improve the oxidation and graphitization resistances of the polycrystalline diamond(PCD), Ti coating was deposited on the diamond powders via magnetic sputtering method, which achieved a uniform Ti C protection barrier in PCD during the sintering process. The phase compositions, microstructures and thermal stability of Ti-PCD were characterized by X-ray diffraction(XRD), Auger electron spectroscopy(AES),scanning electron microscopy(SEM) and thermal gravimetric-differential scanning calorimetry(TG-DSC).The results demonstrate that the oxidation and graphitization resistances of PCD are strengthened due to the existence of Ti C phase, which acts as an effective inhibitor. The as-received inhibitor delays the oxidation and graphitization of PCD, elevating their initial temperature by ~50°C and ~100°C, respectively. During the annealing treatment of Ti-PCD, the priory oxidation of Ti C, which produces Ti O2 as an oxygen barrier, postpones the diamond oxide. Moreover, the Ti C barrier also protects diamond grains from direct contact with cobalt, thus a lower cobalt-catalytic graphitization, and yields to an improved graphitization resistance of PCD. The enhanced oxidation and graphitization resistances of PCD are of significant importance for practical applications to elevated temperatures. | Xiaohua Sha Wen Yue Haichao Zhang Wenbo Qin Dingshun She Chengbiao Wang | 2020 | Journal of Materials Science & Technology2020，36，8： | 6 |
| 2 | Advancement of chimeric antigen receptor-natural killer cells targeting hepatocellular carcinoma显示文摘With the advance of genome engineering technology,chimeric antigen receptors(CARs)-based immunotherapy has become an emerging therapeutic strategy for tumors.Although initially designed for T cells in tumor immunotherapy,CARs have been exploited to modify the function of natural killer(NK)cells against a variety of tumors,including hepatocellular carcinoma(HCC).CAR-NK cells have the potential to sufficiently kill tumor antigen-expressing HCC cells,independent of major histocompatibility complex matching or prior priming.In this review,we summarize the recent advances in genetic engineering of CAR-NK cells against HCC and discuss the current challenges and prospects of CAR-NK cells as a revolutionary cellular immunotherapy against HCC. | Kai Dai Yin Wu Sha She Qian Zhang | 2021 | World Journal of Gastrointestinal Oncology2021，13，12： | 1 |
| 3 | Executive summary of Chinese expert consensus for topical application of anti-microbial agents for lower respiratory tract infection in adults显示文摘In recent years,with the increased prevalence of multi-drug resistant(MDR)bacterial infection and chronic pulmonary infection,the topical application of anti-microbial agents,mainly inhaled antibiotics,has come back to clinical practice.Several formulations for nebulization and dry powder inhaler(DPI)have been approved for inhaled anti-infective therapy.Meanwhile,evidence and experience have been accumulated in the use of anti-microbial agents delivered via airway.However,the available studies in this field are heterogenous in the study population,drug delivery route and dosages.The efficacy and safety of inhaled anti-infective therapy in various types of lower respiratory tract infections(LRTIs)need to be evaluated.Moreover. | Jing Zhang Qijian Cheng Yi Huang Hong Fan Guoxiang Lai Xiangdong Mu Wei Sha Danyang She Ning Shen Xin Su Jinfu Xu Feng Ye Xinlun Tian Tiantuo Zhang Hua Zhou Youning Liu Lixian He Heping Xiao Bei He Yi Shi Xiangyan Zhang Bin Cao Jieming Qu on behalf of Pulmonary Infection Assembly of Chinese Thoracic Society | 2022 | Chinese Medical Journal2022，135，22： | 0 |
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