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NIR-IIb-triggered photodynamic therapy combined with chemotherapy platform based on rare-earth-doped nanoparticles

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Rare Metals 2024年第7期43卷 3220-3231页

作者： Zhuo tu Yong Wan Juan Ge Chen-Chen Li Tao Liang Zhen Li Chemistry and Chemical Engineering Hubei UniversityWuhan 430062China

Photodynamic therapy(PDT),with high spatiotemporal selectivity,minimal side effects and less drug resistance,has emerged as a promising approach for the treatment of ***,inadequate penetration depth and poor efficacy seriously restrict its practical *** address these challenges,we developed a combined therapy platform(RENP@C/D-FA)based on rare-earth-doped nanoparticles(RENPs)with a structure of NaErF_(4):Tm(0.5%)@NaYF_(4),on which photosensitizer Ce6(chlorin e6)and chemo-therapeutic drug(DOX)(doxorubicin)were loaded by encapsulating with an amphiphilic polymer distearoyl phosphatidylethanolamine-polyethylene glycol-folic acid(DSPE-PEG-FA).RENPs with NaErF_(4) as the matrix possess multiple excitation/emission peaks,enabling activation of PDT under near-infrared-Ⅱb(NIR-Ⅱb,1500-1700 nm)excitation and luminescence imaging in NIR-Ⅱb region by absorbing 808 nm near-infrared ***,DOX can be selectively released in the acidic microenvironment of *** from the tumor targeting capability of folic acid,this platform can successfully ablate tumor cells and inhibit tumor growth by combining PDT and *** innovative approach holds great promise as a powerful tool for cancer treatment,showing the potential to revolutionize PDT.

关键词： Photodynamic therapy Rare-earth-doped nanoparticles NIR-IIb Chemotherapy Combined therapy

COVID-19 in the immunocompromised population:data from renal allograft recipients throughout full cycle of the outbreak in Hubei province,China

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Chinese Medical Journal 2022年第2期135卷 228-230页

作者： Weijie Zhang Fei Han Xiongfei Wu Zhendi Wang Yanfeng Wang Xiaojun Guo Song Chen Tao Qiu Heng Li yafang tu Zibiao Zhong Jiannan He Bin Liu Hui Zhang Zhitao Cai Long Zhang Xia Lu Lan Zhu Dong Chen Jiangqiao Zhou Qiquan Sun Zhishui Chen Institute of Organ Transplantation Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430030China Key Laboratory of Organ Transplantation Ministry of EducationNational Health CommissionChinese Academy of Medical SciencesWuhanHubei 430030China Organ Transplantation Research Institute of Sun Yat-sen University The Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong 510000China Center of Nephrology and Dialysis TransplantationRenmin Hospital of Wuhan UniversityWuhanHubei 430030China Department of Urology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430030China Zhongnan Hospital of Wuhan University Institute of Hepatobiliary Diseases of Wuhan UniversityTransplant Center of Wuhan UniversityWuhanHubei 430030China Dongfeng Hospital Hubei University of MedicineShiyanHubei 442008China Department of Transplantation Renmin HospitalWuhan UniversityWuhanHubei 430030China.

Coronavirus disease 2019(COVID-19)is an infectious disease caused by a newly discovered coronavirus and has rapidly spread to most of the world and resulted in a global ***,there is a paucity of information available to characterize the immunodeficient population in the COVID-19 pandemic,especially information that focuses on patients after renal transplantation as the typical representative of this population.

关键词： population immuno COV

Transient response of doubly-curved bio-inspired composite shells resting on viscoelastic foundation subject to blast load using improved first-order shear theory and isogeometric approach

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Defence Technology（防务技术） 2024年第8期38卷 171-193页

作者： Thuy Tran Thi Thu tu Nguyen Anh Hue Nguyen Thi Hong Nguyen Thi School of Mechanical and Automotive Engineering Hanoi University of IndustryHanoiViet Nam Faculty of Technical Fundamental University of Transport TechnologyHanoiViet Nam Faculty of Mechanical Engineering Thuyloi University175 Tay SonDong DaHanoiViet Nam

Investigating natural-inspired applications is a perennially appealing subject for scientists. The current increase in the speed of natural-origin structure growth may be linked to their superior mechanical properties and environmental resilience. Biological composite structures with helicoidal schemes and designs have remarkable capacities to absorb impact energy and withstand damage. However, there is a dearth of extensive study on the influence of fiber redirection and reorientation inside the matrix of a helicoid structure on its mechanical performance and reactivity. The present study aimed to explore the static and transient responses of a bio-inspired helicoid laminated composite(B-iHLC) shell under the influence of an explosive load using an isomorphic method. The structural integrity of the shell is maintained by a viscoelastic basis known as the Pasternak foundation, which encompasses two coefficients of stiffness and one coefficient of damping. The equilibrium equations governing shell dynamics are obtained by using Hamilton's principle and including the modified first-order shear theory,therefore obviating the need to employ a shear correction factor. The paper's model and approach are validated by doing numerical comparisons with respected publications. The findings of this study may be used in the construction of military and civilian infrastructure in situations when the structure is subjected to severe stresses that might potentially result in catastrophic collapse. The findings of this paper serve as the foundation for several other issues, including geometric optimization and the dynamic response of similar mechanical structures.

关键词： Blast load Modified first-order shear theory Biological composite structures

肾移植后FSGS复发二例报告并循环渗透因子组风险等级评估的应用

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中华器官移植杂志 2020年第2期41卷 75-78页

作者：李敛涂亚芳廖雯靚王娟吴雄飞武汉大学人民医院肾病与透析移植中心 430060

目的:总结肾移植术后局灶节段性肾小球硬化(FSGS)复发的诊断、治疗及转归;探讨循环渗透因子组风险等级评估对FSGS复发的预测价值。方法:总结2例肾移植术后FSGS复发受者的术前及术后临床病史、肾穿刺活检病理、循环渗透因子组风险等级评... 详细信息

目的:总结肾移植术后局灶节段性肾小球硬化(FSGS)复发的诊断、治疗及转归;探讨循环渗透因子组风险等级评估对FSGS复发的预测价值。方法:总结2例肾移植术后FSGS复发受者的术前及术后临床病史、肾穿刺活检病理、循环渗透因子组风险等级评估、治疗方法及效果;分析循环渗透因子组风险等级评估与FSGS复发之间的关系。结果:2例受者原发病均为原发性FSGS,24 h尿蛋白定量超过10 g,经移植肾活检确诊FSGS复发,术前的循环渗透因子组风险等级评估均为高风险。经过血浆置换联合利妥昔单抗,辅以雷公藤多甙治疗后,24 h尿蛋白定量明显下降,全身水肿减轻,肾功能稳定。结论:肾移植术后复发FSGS经血浆置换联合利妥昔单抗治疗可以有效缓解症状;循环渗透因子组风险等级评估对预测FSGS复发风险可能有参考价值。

关键词：肾移植局灶节段性肾小球硬化复发循环渗透因子风险等级

Unraveling the complexity of polycystic ovary syndrome with animal models

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Journal of Genetics and Genomics 2024年第2期51卷 144-158页

作者： Huanju Liu Mixue tu Zhiyong Yin Dan Zhang Jun Ma Feng He Center for Genetic Medicine The Fourth Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang 310058China Key Laboratory of Women's Reproductive Health of Zhejiang Province and Department of Reproductive Endocrinology Women's HospitalZhejiang University School of MedicineHangzhouZhejiang 310006China Zhejiang Provincial Clinical Research Center for Child Health Women's HospitalZhejiang University School of MedicineHangzhouZhejiang 310006China Clinical Research Center on Birth Defect Prevention and Intervention of Zhejiang Province HangzhouZhejiang 310006China Institute of Genetics Zhejiang University International School of MedicineHangzhouZhejiang 310058China Zhejiang Provincial Key Laboratory of Genetic and Developmental Disorder HangzhouZhejiang 310058China

Polycystic ovary syndrome (PCOS) is a highly familial and heritable endocrine disorder. Over half of the daughters born to women with PCOS may eventually develop their own PCOS-related symptoms. Progress in the treatment of PCOS is currently hindered by the complexity of its clinical manifestations and incomplete knowledge of its etiopathogenesis. Various animal models, including experimentally induced, naturally occurring, and spontaneously arising ones, have been established to emulate a wide range of phenotypical and pathological traits of human PCOS. These studies have led to a paradigm shift in understanding the genetic, developmental, and evolutionary origins of this disorder. Furthermore, emerging evidence suggests that animal models are useful in evaluating state-of-the-art drugs and treatments for PCOS. This review aims to provide a comprehensive summary of recent studies of PCOS in animal models, highlighting the power of these disease models in understanding the biology of PCOS and aiding high-throughput approaches.

关键词： Polycystic ovary syndrome Animal model Genetc manipulation Developmnental progtanning Drug screening

Towards Blockchain-Based Secure BGP Routing,Challenges and Future Research Directions

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Computers, Materials & Continua 2024年第5期79卷 2035-2062页

作者： Qiong Yang Li Ma Shanshan tu Sami Ullah MuhammadWaqas Hisham Alasmary Faculty of Information Technology Beijing University of TechnologyBeijing100124China School of Information Science and Technology North China University of TechnologyBeijing100144China Department of Computer Science Shaheed Benazir Bhutto UniversitySheringal18050Pakistan School of Computing and Mathematical Science Faculty of Engineering and ScienceUniversity of GreenwichLondonSE109LSUK School of Engineering Edith Cowan UniversityPerth6027Australia Department of Computer Science King Khalid UniversityAbha61421Saudi Arabia

Border Gateway Protocol(BGP)is a standard inter-domain routing protocol for the Internet that conveys network layer reachability information and establishes routes to different *** BGP protocol exhibits security design defects,such as an unconditional trust mechanism and the default acceptance of BGP route announcements from peers by BGP neighboring nodes,easily triggering prefix hijacking,path forgery,route leakage,and other BGP security ***,the traditional BGP security mechanism,relying on a public key infrastructure,faces issues like a single point of failure and a single point of *** decentralization,anti-tampering,and traceability advantages of blockchain offer new solution ideas for constructing secure and trusted inter-domain routing *** this paper,we summarize the characteristics of BGP protocol in detail,sort out the BGP security threats and their ***,we analyze the shortcomings of the traditional BGP security mechanism and comprehensively evaluate existing blockchain-based solutions to address the above problems and validate the reliability and effectiveness of blockchain-based BGP security methods in mitigating BGP security ***,we discuss the challenges posed by BGP security problems and outline prospects for future research.

关键词： BGP security blockchain prefix hijacking trust model secure routing

Optimization of mixing speed and time to disperse the composite conductive agent composed of carbon black and graphene in lithium-ion battery slurry

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Particuology 2024年第9期92卷 1-12页

作者： Zhilong Wang Jialong tu Xinhao Yu Feixiang Li Zhenzhen Zhao Yahui Cui Tong Zhao Faculty of Mechanical and Precision Instrument Engineering Xi'an University of TechnologyXi'an710048China

This paper proposed an optimal approach to disperse the composite conductive agent which is composed of carbon black(CB)and graphene(Gr)within lithium-ion battery(LIB)slurry with different mixing speeds and mixing *** internal structures of LIB slurry are characterized by Electrochemical Impedance Spectroscopy,Scanning Electron Microscopy,and Raman ***,a composite conductive solution is prepared by mixing the composite conductive agent with NMP solvent under the conditions of five different mixing speeds n_(1)(n_(1)=1000,1100,1200,1300,1400 rpm)in the case of mixing time t_(1)=10 ***,LIB slurry is prepared by blending the composite conductive solution,LiCoO_(2)and PVDF-NMP solution under the conditions of five different mixing speeds n_(2)(n_(2)=1000±280,1100±280,1200±280,1300±280,1400±280 rpm)in the case of mixing time t_(2)=6 *** analyzing the internal structure of different LIB slurries,it shows that in the case of n_(1)=n_(2)=1200 rpm,a conductive network structure is well formed within LIB ***,in order to determine the optimal time to prepare the composite conductive solution for LIB slurry,nine different t_(1)(t_(1)=0,10,20,30,40,50,60,70,80 min)are *** analyzing the internal structure of different LIB slurries,a well-formed conductive network structure and a uniformly distributed composite conductive agent are deduced in LIB slurry when t_(1)=50 ***,it can be concluded that the composite conductive agent composed of CB and Gr is able to be uniformly dispersed in LIB slurry by establishing a well-formed conductive network structure under the optimal mixing speed n_(1)=n_(2)=1200 rpm and the optimal mixing time t_(1)=50 min,t_(2)=6 *** kind of the internal structure has the potential to be used to further analyze the dispersion characterizations of LIB slurry under different composite conductive agent and CB/Gr ratios with the aim of improving the final performance of LIB.

关键词： Lithium-ion battery slurry Composite conductive agent Carbon black Graphene

Experimental study on temperature fluctuations on plate surface induced by coaxial-jet flow

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Nuclear Science and Techniques 2024年第5期35卷 139-153页

作者： Xue-Yao Xiong Zun-Quan Liu Guo-Yan Zhou Xing Luo Shan-tung tu Key Laboratory of Pressure Systems and Safety(MOE) East China University of Science and TechnologyShanghai 200237China Institute of Thermodynamics Gottfried Wilhelm Leibniz University Hannover30823 GarbsenGermany

In nuclear reactors,temperature fluctuations of fluids may cause fatigue damage to adjacent structures;this is referred to as thermal *** on thermal striping in the upper plenum has mainly focused on fluid *** experimental studies have been reported on solid structures in a fluid field with a coaxial *** study entailed an experimental study of the temperature fluctuations in the fluid and on a plate surface caused by a coaxial *** temperature fluctuations of the fluid and plate surfaces located at different heights were *** cause of the temperature fluctuation was analyzed using a transient temperature *** results show that the mixing of the hot and cold fluids gradually becomes uniform in the positive axial *** average surface temperatures tended to be *** the jet reaches the plate surface,the swing of the jet center,contraction and expansion of the cold jet,and changes in the jet shape result in temperature *** intensity of the temperature fluctuation was affected by the *** attention should be paid when the plate is located at a lower height,and between the hot and cold-fluid nozzles.

关键词： Temperature fluctuation Thermal striping Coaxial jet Thermal mixing The upper plenum of nuclear reactor

高糖对树突状细胞分化成熟和免疫功能的影响及其机制

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中华糖尿病杂志 2019年第9期11卷 624-629页

作者：涂亚芳吴雄飞王娟蔡治涛廖雯靓李敛武汉大学人民医院东院肾脏病透析与移植中心 430060

目的探索树突状细胞(DCs)在高糖环境下分化、成熟、免疫功能的影响及其发生机制,以期进一步探索DCs在糖尿病肾病发病中的作用.方法取小鼠骨髓单个核细胞,在含重组人粒?巨噬细胞集落刺激因子(rhGM-CSF,20 ng/ml)和重组人白细胞介素?4(rhI... 详细信息

目的探索树突状细胞(DCs)在高糖环境下分化、成熟、免疫功能的影响及其发生机制,以期进一步探索DCs在糖尿病肾病发病中的作用.方法取小鼠骨髓单个核细胞,在含重组人粒?巨噬细胞集落刺激因子(rhGM-CSF,20 ng/ml)和重组人白细胞介素?4(rhIL-4,10 ng/ml)的完全培养基中培养,第7天收集不成熟DCs分别在含有5.5 mmol/L D-葡萄糖、30 mmol/L D?葡萄糖、30 mmol/L D-葡萄糖+100μg/ml核因子κB抑制剂吡咯烷二硫氨基甲酸(PDTC)的RPMI1640完全培养基中继续培养48 h后,采用流式细胞术检测DCs表型;以DCs为刺激细胞、同种异体T淋巴细胞为反应细胞按比例混合后,以混合淋巴细胞反应强度观察对树突状细胞抗原递呈、淋巴细胞增殖、淋巴细胞凋亡的影响;ELISA法检测细胞培养上清细胞因子浓度;Western blot检测核因子κB(NF-κB)活化程度.采用Student-t检验分析各组之间差异的显著性.结果与正常对照组相比,30 mmol/L D-葡萄糖能明显增加DCs内NF-κB的活化(IκBɑ:0.29±0.18比0.69±0.79,t=-1.27;p65:0.87±0.18比0.35±0.13,t=2.19;均P<0.01),显著上调DCs表面标志CD11c、主要组织相容性复合体Ⅱ类分子、CD80、CD86、CD40的表达(t=8.97~10.45,均P<0.05),增强了T淋巴细胞的增殖作用(1:100时1.80±0.23比1.57±0.20,t=2.46;1:25时1.74±0.17比1.32±0.18,t=2.82;1:10时1.59±0.25比1.28±0.19,t=3.06;均P<0.05)、减低了T淋巴细胞的凋亡比率(12.0±2比44.0±12.3,t=4.03,P<0.05),并且促进DCs分泌细胞因子白细胞介素12(IL-12)、γ-干扰素(IFN-γ)、肿瘤坏死因子α(TNF-α)(t=3.68~7.68,均P<0.05);而NF-κB抑制剂PDTC则可不同程度阻断上述作用(均P<0.05).结论高糖能够显著增加NF-κB的活化进而促进DCs的成熟,成熟DCs加速和放大了炎症免疫反应,这可能是DCs参与糖尿病肾病的重要机制之一.

关键词：糖尿病肾病树突细胞 NF-κB 免疫炎症反应