1.Preparation of SiO2/Ni core-shell type nanoparticles and their magnetic properties
Xinglong DONG ; Jinxuan LIU ; Hao HUANG ; Weina WANG ; Xuefeng ZHANG ; Junpeng LEI ; Xuguang ZHU
Chinese Journal of Tissue Engineering Research 2008;12(27):5397-5400
BACKGROUND: Inhibitory coating can prevent nanoparticle oxidation, grain growth, corrosion and agglomeration, and endow nanoparticle with special properties. ABJECTIVE: To prepare SiO2/Ni core-shell type nanoparticles and assess their magnetic properties. DESIGN, TIME AND SETTING: The observation experiment was performed between November 2005 and March 2006 at Nanometer Compound Material Research Laboratory of Dalian University of Technology, Dalian, Liaoning Province, China. MATERIALS: Nanometer nickel powder prepared by DC arc plasma jet method, Na2SiO3 produced by Bazhou Chemical Industry Branch Factory of Tianjin Quartz Clock Factory (China).METHODS: SiO2/Ni core-shell type nanoparticles were synthesized by coating a layer of SiO2 on the surface of manometer nickel powder via liquid deposition method using Na2SiO3 as the main source material. MAIN OUTCOME MEASURES: Their microstructures and material properties were investigated by X-ray diffraction, Fourier transform infrared spectrometer, transmission electron microscopy, thermo-gravimetric analysis, differential scanning calorimetry and vibrating sample magnetometer. RESULTS: The experimental results showed that SiO2 shell was in an amorphous state around Ni cores and it avoided agglomeration of the Ni nanoparticles. The oxidation temperature of nanometer nickel powder coated by SiO2 elevated from 287 ℃ to 385 ℃. The analysis result of magnetic properties indicated that the hysteresis loop of Ni had an excursion for the existence of anti-ferromagnetic NiO, the silica coating reduced the saturation magnetization and improved the coercivity. CONCLUSION: Preparation of SiO2/Ni core-shell type nanopartieles was successful; silica coating improved the oxidation resistance of nanometer nickel powder, endowed nanometer nickel powder better ferromagnetism and improved the coercivity.
2.Effect of Mesalazine Hydroxyl-propyl-β-cyclodextrin Inclusion Compound Liquid Suppositories on Ulcera-tive Colitis in Rats
Shuhai YU ; Weizhong HAO ; Danggang YAO ; Peng LIU ; Lingli ZHANG ; Xinglong SONG
China Pharmacist 2016;19(10):1847-1849
Objective:To study the effect of mesalazine hydroxyl-propyl-β-cyclodextrin inclusion compound ( MSZ-HP-β-CD) liq-uid suppositories on ulcerative colitis ( UC) in rats. Methods:Dextran sulfate sodium was used to induce UC in rats. The marketed MSZ suppositories were applied as the positive control, and the changes in morphology and histopathology of the UC rats were observed after the treatment with MSZ-HP-β-CD liquid suppositories. Results:The results of morphology study showed that CMDI was decreased in the two MSZ preparation groups when compared with that in the model group (P<0. 01), and that in MSZ-HP-β-CD liquid supposi-tories group was the lowest (P<0. 05). The results of histopathology study showed that with the treatment of the marketed MSZ sup-positories and MSZ-HP-β-CD liquid suppositories, the ulcer and damage were improved, and the improvement in the MSZ-HP-β-CD liquid suppositories group was more significant. Conclusion: MSZ-HP-β-CD liquid suppositories exhibit better effect on UC in rats when compared with the marketed MSZ suppositories, which is worthy of further studies.
3.Analysis and comparison strategy of mixed DNA profile without known provider
Yu WANG ; Kunyun MAO ; Jiajia CHEN ; Xinglong HAO ; Run JIA
Chinese Journal of Forensic Medicine 2017;32(6):645-648
Objective From the perspective of making full use of database comparison function, giving certain guidelines to analyze mixed DNA profile,compare database,screen comparison results. Methods Using CPI to describe the identification of mixed DNA profile.Using CPBI to estimate reliability of individual samples being included. Results When CPI is less than 10-7, mixed DNA Profile is worth to be compared in database.When the number of alleles at one locus is more than 2, retain an additional allele will not reduce identification too much. According to the CPBI of the included samples,we can find the most reliable sample.
4.Chinese expert consensus on diagnosis, treatment and prevention of venous thrombus embolism associated with chest trauma (2022 version)
Kaibin LIU ; Yi YANG ; Hui LI ; Yonten TSRING ; Zhiming CHEN ; Hao CHEN ; Xinglong FAN ; Congrong GAO ; Chundong GU ; Yutong GU ; Guangwei GUO ; Zhanlin GUO ; Jian HU ; Ping HU ; Hai HUANG ; Lijun HUANG ; Weiwei HE ; Longyu JIN ; Baoli JING ; Zhigang LIANG ; Feng LIN ; Wenpan LIU ; Danqing LI ; Xiaoliang LI ; Zhenyu LI ; Haitao MA ; Guibin QIAO ; Zheng RUAN ; Gang SUI ; Dongbin WANG ; Mingsong WANG ; Lei XUE ; Fei XIA ; Enwu XU ; Quan XU ; Jun YI ; Yunfeng YI ; Jianguo ZHANG ; Dongsheng ZHANG ; Qiang ZHANG ; Zhiming ZHOU ; Zhiqiang ZOU
Chinese Journal of Trauma 2022;38(7):581-591
Chest trauma is one of the most common injuries. Venous thromboembolism (VTE) as a common complication of chest trauma seriously affects the quality of patients′ life and even leads to death. Although there are some consensus and guidelines on the prevention and treatment of VTE at home and abroad, the current literatures lack specificity considering the diagnosis, treatment and prevention of VTE in patients with chest trauma have their own characteristics, especially for those with blunt trauma. Accordingly, China Chest Injury Research Society and editorial board of Chinese Journal of Traumatology organized relevant domestic experts to jointly formulate the Chinese expert consensus on the diagnosis, treatment and prevention of chest trauma venous thromboembolism associated with chest trauma (2022 version). This consensus provides expert recommendations of different levels as academic guidance in terms of the characteristics, clinical manifestations, risk assessment, diagnosis, treatment, and prevention of chest trauma-related VTE, so as to offer a reference for clinical application.