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Atomically Substitutional Engineering of Transition Metal Dichalcogenide Layers for Enhancing Tailored Properties and Superior Applications

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Nano-Micro Letters 2024年第5期16卷 248-284页

作者： Zhaosu Liu Si Yin Tee Guijian Guan ming‑yong han Institute of Molecular Plus Tianjin UniversityTianjin 300072People’s Republic of China Institute of Materials Research and Engineering A*STARSingapore 138634Singapore

Transition metal dichalcogenides(TMDs)are a promising class of layered materials in the post-graphene era,with extensive research attention due to their diverse alternative elements and fascinating semiconductor *** MX2 layers with different metal and/or chalcogen elements have similar structural parameters but varied optoelectronic properties,providing opportunities for atomically substitutional engineering via partial alteration of metal or/and chalcogenide atoms to produce ternary or quaternary *** resulting multinary TMD layers still maintain structural integrity and homogeneity while achieving tunable(opto)electronic properties across a full range of composition with arbitrary ratios of introduced metal or chalcogen to original counterparts(0–100%).Atomic substitution in TMD layers offers new adjustable degrees of freedom for tailoring crystal phase,band alignment/structure,carrier density,and surface reactive activity,enabling novel and promising *** review comprehensively elaborates on atomically substitutional engineering in TMD layers,including theoretical foundations,synthetic strategies,tailored properties,and superior *** emerging type of ternary TMDs,Janus TMDs,is presented specifically to highlight their typical compounds,fabrication methods,and potential ***,opportunities and challenges for further development of multinary TMDs are envisioned to expedite the evolution of this pivotal field.

关键词： Transition metal dichalcogenides Atomic substitution Tailored structure Tunable bandgap Enhanced applications

Effective Activation of Melamine for Synchronous Synthesis of Catalytically Active Nanosheets and Fluorescence-Responsive Quantum Dots

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Transactions of Tianjin University 2024年第3期30卷 284-296页

作者： Jie Xuan Guijian Guan ming-yong han Institute of Molecular Plus Tianjin UniversityTianjin 300072China

Because of the low reactivity of cyclic nitrides,liquid-phase synthesis of carbon nitride introduces challenges despite its favorable potential for energy-efficient preparation and superior *** this study,we demonstrate a strong interaction between citric acid and melamine through experimental observation and theoretical simulation,which eff ectively activates melamine-condensation activity and produces carbon-rich carbon nitride nanosheets(CCN NSs)during hydrothermal *** a large specific surface area and increased light absorption,these CCN NSs demonstrate significantly enhanced photocatalytic activity in CO_(2) reduction,increasing the CO production rate by approximately tenfold compared with hexagonal melamine(h-Me).Moreover,the product selectivity of CCN NSs reaches up to 93.5%to generate CO from CO_(2).Furthermore,the annealed CCN NSs exhibit a CO conversion rate of up to 95.30μmol/(g h),which indicates an 18-fold increase compared with traditional carbon *** the CCN NS synthesis,nitrogen-doped carbon quantum dots(NDC QDs)are simultaneously produced and remain suspended in the supernatant after *** QDs disperse well in water and exhibit excellent luminescent properties(QY=67.2%),allowing their application in the design of selective and sensitive sensors to detect pollutants such as pesticide 2,4-dichlorophenol with a detection limit of as low as 0.04μmol/***,the simultaneous synthesis of CCN NSs and NDC QDs provides a cost-eff ective and highly efficient process,yielding products with superior capabilities for catalytic conversion of CO_(2) and pollutant detection,respectively.

关键词： Carbon nitride Hydrothermal reaction Photocatalysis Carbon dioxide Quantum dots

PREPARATION AND CHARACTERIZATION OF A NEW HEXAHYDROPYRROLIZINE DERIVATIVE OF FULLERENE

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Chinese Chemical Letters 1995年第3期6卷 201-204页

作者： Hone Xian han Yu Liang LI yong Fang LI ming yong han Zi WU Yi ming MO Fend Lian BAI Dao Ben ZHU Institute of Chemistry Chinese Academy of SciencesBeijing 100080

C60 undergoes 1 .3-dipolar cycloaddition reaction with the 1.3-dipole derived from heating 4-hydroxy-L-proline and paraformaldehyde to form a monoadduct in yield of 29.3%.

关键词： 1?

Continuous release of interleukin 12 from microencapsulated engineered cells for colon cancer therapy

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World Journal of Gastroenterology 2003年第5期9卷 951-955页

作者： Shu Zheng Zuo-Xiang Xiao Yue-Long Pan ming-yong han Qi Dong Cancer Institute,Zhejiang University,hangzhou 310009,Zhejiang Province,China Cancer Institute Zhejiang University Hangzhou 310009 Zhejiang Province China. zhengshu@***

AIM: To explore the anti-tumor immunity against CT26 colon tumor of the microencapsulated cells modified with murine interleukine-12 (mIL-12) ***: Mouse fibroblasts (NIH3T3) were stably transfected to express mIL-12 using expression plasmids carrying mIL-12 gene (p35 and p40), and NIH3T3-mIL-12cells were encapsulated in alginate microcapsules for longterm delivery of mIL-12. mIL-12 released from the microencapsulated NIH3T3-mIL-12 cells was confirmed using ELISA assay. Transplantation of the microencapsulated NIH3T3-mIL-12 cells was performed in the tumor-bearing mice with CT26 cells. The anti-tumor responses and the anti-tumor activities of the microencapsulated NIH3T3-mIL12 cells were ***: Microencapsulated NIH3T3-mIL-12 cells could release mIL-12 continuously and stably for a long time. After the microencapsulated NIH3T3-mIL-12 cells were transplanted subcutaneously into the tumor-bearing mice for 21 d, the serum concentrations of mIL-12, mIL-2 and mIFN-γ the cytotoxicity of the CTL from the splenocytes and the NK activity in the treatment group were significantly higher than those in the controls. Moreover, mIL-12 released from the microencapsulated NIH3T3-mIL-12 cells resulted in a significant inhibition of tumor proliferation and a prolonged survival of tumor-bearing ***: The microencapsulated NIH3T3-mIL-12cells have a significant therapeutic effect on the experimental colon tumor by activating anti-tumor immune responses in vivo. Microencapsulated and genetically engineered cells may be an extremely versatile tool for tumor gene therapy.

关键词：微胶囊化工程细胞白细胞介素-12 结肠癌肿瘤治疗学肿瘤抑制细胞因子

Clinical significance of vascular endothelial growth factor expression and neovascularization in colorectal carcinoma

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World Journal of Gastroenterology 2003年第6期9卷 1227-1230页

作者： Shu Zheng ming-yong han Zuo-Xiang Xiao Jia-Ping Peng Qi Dong Cancer Institute,Zhejiang University,hangzhou 310009,Zhejiang Province,China Cancer Institute Zhejiang University Hangzhou 310009 Zhejiang Province China.

AIM: To clarify the association of vascular endothelial growth factor (VEGF) and microvascular density (MVD) expression with the angiogenesis and prognosis of colorectal ***: A total of 97 cases of colorectal cardnomas were examined by immunohistochemical staining (SP method), using anti-VEGF and anti-factor CD34^+ monodonal antibodies,RESULTS: VEGF positive staining was obtained in 68 out of 97 cases (70.1%), and observed mainly in the cytoplasm of tumor cells, and also frequently in stromal cells. VEGF expression was more intense in poorly differentiated adenocarcinoma in comparison with others, but there was no significant correlation between VEGF expression and age,sex and stage. A significant correlation was found between the MVD and grades, and there was no significant relationship between the MVD and age, sex, and stage. The MVD in the VEGF positive group (68 cases) was higher than that in the negative group. Upon multivariate analysis, the significant variables were stage, tumor grade and MVD; VEGF expression was not an independent prognostic ***: The expression of VEGF has a significant correlation with MVD; MVD expression has prognostic value but VEGF has not in colon cancer.

关键词：结肠癌直肠癌血管生成血管内皮生成因子微血管密度

Protective effect of electroacupuncture preconditioning at zúsānlǐ(足三里 ST36) on mitochondria in the intestinal ischemia/reperfusion injury

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World Journal of Acupuncture-Moxibustion 2018年第3期28卷 191-197,I0005页

作者： Zheng HUANG yong-ming han Xiao-ping HONG Yan-jun DUAN Tao CHEN Jiao-rong CHEN Department of Anatomy and Histology and Embryology Basic Medical College Hubei University of traditional Chinese medicine Wuhan Hubei 430065 China pathology Department of the Central Hospital of Wuhan Huazhong University of Science and Technology Wuhan Hubei 430014 China

Objective： The study explored the effect of applying electroacupuncture（EA） preconditioning at ST 36 on mitochondria in rats with intestinal ischemia/reperfusion ***： Forty SD rats were divided into four sets： sham operation group（sham group）; intestinal ischemia/reperfusion group（I/R group）; EA preconditioning at ST 36 followed by intestinal ischemia/reperfusion injury（ST 36 ＋ I/R group）; EA preconditioning at the lateral site away from ST360.5 cm followed by intestinal ischemia/reperfusion injury（N＋I/R group）. For the sham group, the rats were opened abdominal cavity for 3 h and 20 min and their abdominal cavities were covered with wet gauze avoiding drying and kept on the thermostat at 37 0 C. For the ischemia/reperfusion（I/R） group,rats were anaesthetised and their abdominal cavities were opened to expose jejunum segments. The segment＇s collateral blood supply was restricted by bilateral ligation of the intestine. Next, one of the branches of a mesenteric artery was occluded with a thread for 20 min and then the thread was released after such ischemia conditions, keeping reperfusion for 3 h. For the ST36 ＋ I/R group, the electroacupuncture at ST36 was first performed, then the intestinal ischemia/reperfusion model was constructed. For the N ＋ I/R group, electroacupuncture at non ST36 acupoint, which is away from ST36 about 0.5 cm, and then the intestinal ischemia/reperfusion model was performed. Measurements of the levels of inflammatory markers tumour necrosis factor a（TNFa） and interleukin-1 beta（IL-1β）, cytochrome c（CYCS）, and the mitochondrial membrane pro-apoptotic protein（BAX）, anti-apoptotic protein Bcl-2 were ***： Compared to I/R group, the intensity of cytoplasmic CYCS in intestinal tissues was significantly decreased in the ST 36 ＋ I/R group（1.65 vs. 0.18, p〈0.05）. Compared to N ＋ I/R group, the intensity of cytoplasmic CYCS in intestinal tissues was also dramatically declined in the ST 36 ＋ I/R group（1.37 vs. 0.18, p〈0.05）. Th

关键词： Electroacupuncture ST36 (Zusanli acupoint) Intestinal ischemia/reperfusion Intestinal ischemia/reperfusion Mitochondria Cytochrome c

Crystallization Modulation and Holistic Passivation Enables Efficient Two‑Terminal Perovskite/CuIn(Ga)Se_(2)Tandem Solar Cells

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Nano-Micro Letters 2025年第1期17卷 205-215页

作者： Cong Geng Kuanxiang Zhang Changhua Wang Chung Hsien Wu Jiwen Jiang Fei Long Liyuan han Qifeng han Yi‑Bing Cheng yong Peng State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070People’s Republic of China Triumph Photovoltaic Materials Co. Ltd.No.1001 Yannan AvenueHigh‑Tech Development DistrictBengbuAnhui 233000People’s Republic of China College of Materials Science and Engineering Guilin University of TechnologyGuilin 541004People’s Republic of China State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Two-terminal(2-T)perovskite(PVK)/CuIn(Ga)Se_(2)(CIGS)tandem solar cells(TSCs)have been considered as an ideal tandem cell because of their best bandgap matching regarding to Shockley–Queisser(S–Q)***,the nature of the irregular rough morphology of commercial CIGS prevents people from improving tandem device *** this paper,D-homoserine lactone hydrochloride is proven to improve coverage of PVK materials on irregular rough CIGS surfaces and also passivate bulk defects by modulating the growth of PVK *** addition,the minority carriers near the PVK/C60 interface and the incompletely passivated trap states caused interface recombination.A surface reconstruction with 2-thiopheneethylammonium iodide and N,N-dimethylformamide assisted passivates the defect sites located at the surface and grain ***,LiF is used to create this field effect,repelling hole carriers away from the PVK and C60 interface and thus reducing *** a result,a 2-T PVK/CIGS tandem yielded a power conversion efficiency of 24.6%(0.16 cm^(2)),one of the highest results for 2-T PVK/CIGS TSCs to our *** validation underscores the potential of our methodology in achieving superior performance in PVK/CIGS tandem solar cells.

关键词： PVK/CIGS TSCs Irregular rough surfaces Modulating the growth PVK/C60 interface recombination

A Retrospective study of Plasma Cell Infiltrate in Explanted Renal Allograft

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A Retrospective study of Plasma Cell Infiltrate in Explanted...

Induced antigen-specific CD4+CD25highFoxP3+ regulatory T cells following transplant

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作者： XU Xiaoguang,SHI Bingyi, CAI ming,han yong,WANG Qiang,XU Liang, XIAO Li,ZHOU Wenqiang Transplantation Center, the Second Affiliated Hospital, Chinese PLA General Hospital, Beijing , China 100091

Renal transplantation is the most effective therapy in end-stage renal disease. The prognosis of transplant survival is still determined by rejection. Plasma cells predominate in the cellular infiltrate of allograft in rejection is called plasma cell rich rejection, and plasma cell rich allograft has a poor prognosis. In order to study the correlation between plasma cell infiltrate and the humoral rejection,

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Induced antigen-specific CD4+CD25highFoxP3+ regulatory T cel...