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| 1 | Adhesion and immunomodulatory effects of Bifidobacterium lactis HN019 on intestinal epithelial cells INT-407显示文摘AIM:To elucidate the adherence and immunomodulatory properties of a probiotic strain Bifidobacterium lactis(B.lactis) HN019.METHODS:Adhesion assays of B.lactis HN019 and Salmonella typhimurium(S.typhimurium) ATCC 14028 to INT-407 cells were carried out by detecting copies of species-specific genes with real-time polymerase chain reaction.Morphological study was further conducted by transmission electron microscopy.Interleukin-1β(IL-1β),interleukin-8,and tumor necrosis factor-α(TNF-α) gene expression were assessed while enzyme linked immunosorbent assay was used to detect IL-8 protein secretion.RESULTS:The attachment of S.typhimurium ATCC 14028 to INT407 intestinal epithelial cells was inhibited significantly by B.lactis HN019.B.lactis HN019 could be internalized into the INT-407 cells and attenuated IL-8 mRNA level at both baseline and S.typhimuriuminduced pro-inflammatory responses.IL-8 secretion was reduced while IL-1β and TNF-α mRNA expression level remained unchanged at baseline after treated with B.lactis HN019.CONCLUSION:B.lactis HN019 does not up-regulate the intestinal epithelium expressed pro-inflammatory cytokine,it showed the potential to protect enterocytes from an acute inflammatory response induced by enteropathogen. | Liu, Chang Zhang, Zhuo-Yang Dong, Ke Guo, Xiao-Kui | 2010 | World Journal of Gastroenterology2010，16，18： | 24 |
| 2 | New technological partition for “three zones” spontaneous coal combustion in goaf显示文摘On detailed analysis basis of spontaneous coal combustion for the three zones in mine goaf,we use O2 and CO concentrations to divide the three zones of the coal combustion.Through our experiment,we selected a typical working face and focused on the changes in gas concentrations.In order to overcome establishment limitations of actual layout location and underground conditions in a mine goaf,we based our observations on the three zones,combined them with numerical simulation,described the distribution and the changes in O2 and CO concentrations during the coal spontaneous combustion in the goaf,which provided us with an understanding of the distribution of coal spontaneous combustion in the three zones in the form of maps.Essentially,our study summarizes the changes of O2and CO concentrations in the entire goaf and shows them to be in agreement with our observations at the scene.The study shows that it is feasible to divide the three zones,given our comprehensive targets of O2,CO and our numerical simulation.This method avoids the limitation of dividing the three zones with a single target and the likely errors of observations at the scene.In addition,the method offers a basis for optimizing measures of fre-fghting with important and practical effects. | Pan Rongkun Cheng Yuanping Yu Minggao Lu Chang Yang Ke | 2013 | International Journal of Mining Science and Technology2013，23，4： | 20 |
| 3 | Antibiotic Resistance of Probiotic Strains of Lactic Acid Bacteria Isolated from Marketed Foods and Drugs显示文摘Objective To identify the antimicrobial resistance of commercial lactic acid bacteria present in microbial foods and drug additives by analyzing their isolated strains used for fermentation and probiotics. Methods Antimicrobial susceptibility of 41 screened isolates was tested with disc diffusion and E-test methods after species-level identification. Resistant strains were selected and examined for the presence of resistance genes by PCR. Results Distribution of resistance was found in different species. All isolates were susceptible to chloramphenicol, tetracycline, ampicillin, amoxicillin/clavulanic acid, cephalothin, and imipenem. In addition, isolates resistant to vancomycin, rifampicin, streptomycin, bacitracin, and erythromycin were detected, although the incidence of resistance to these antibiotics was relatively low. In contrast, most strains were resistant to ciprofloxacin, amikacin, trimethoprim/sulphamethoxazole, and gentamycin. The genes msrC, vanX, and dfrA were detected in strains of Enterococcus faecium, Lactobacillus plantarum, Streptococcus thermophilus, and Lactococcus lactis. Conclusion Antibiotic resistance is present in different species of probiotic strains, which poses a threat to food safety. Evaluation of the safety of lactic acid bacteria for human consumption should be guided by established criteria, guidelines and regulations. | CHANG LIU, ZHUO-YANG ZHANG, KE DONG, JIAN-PING YUAN, AND XIAO-KUI GUO P1 P Department of Medical Microbiology and Parasitology, Institutes of Medical Sciences, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China | 2009 | Biomedical and Environmental Sciences2009，22，5： | 19 |
| 4 | PGC-1α induces apoptosis in human epithelial ovarian cancer cells through a PPARy-dependent pathway显示文摘Peroxisome 激活 proliferator 的受体鲸鱼群妈(PPAR γ) coactivator-1 高山哈(PGC-1 α) coactivates 多重抄写因素并且调整几个代谢过程。Thecurrent 学习在人的上皮的卵巢的癌症房间在 apoptosis 的正式就职调查了 PGC-1 α的角色。在人的卵巢和人的卵巢的上皮的肿瘤之间的 PGC-1 α信使 rna 水平被量的 RT-PCR 检验。更少的 PGC-1 α表示与正常卵巢相比在恶意的肿瘤的表面上皮被发现。在人的上皮的卵巢的癌症房间线 Ho-8910 的 PGC-1 α的 Overexpression 通过 Bcl-2 和 Bax 表示的协调规定导致了房间 apoptosis。Microarray 分析证实 PGC-1 α戏剧性地在 Ho-8910 房间影响了 apoptosis 相关的基因。 Mitochondrial 功能的试金证明 apoptosis 的正式就职通过由细胞色素 c.Furthermore 的版本的终端阶段,导致的 apoptosis 部分是,然而并非完全,由 PPAR γa ntagonist ( GW9662 )堵住了的 PGC-1 α-,并且由 siRNA 的 PPAR γ 表示的抑制也在 Ho-8910 房间禁止了 PGC-1 α- inducedapoptosis 。这些数据建议 PGC-1 α通过 aPPAR γ - 依赖者小径施加了它的效果。我们的调查结果显示 PGC-1 α涉及 apoptotic signaltransduction 小径, PGC-1 α的 down 规定可以是在支持上皮的卵巢的癌症生长和前进的一个关键点。 | Yan Zhang Yi Ba Chang Liu Guoxun Sun Li Ding Songyuan Gao Jihui Hao Zhentao Yu Junfeng Zhang Ke Zen Zhongsheng Tong Yang Xiang Chen-Yu Zhang | 2007 | Cell Research2007，17，4： | 14 |
| 5 | Using the Prostate Imaging Reporting and Data System version 2 (PI-RIDS v2) to detect prostate cancer can prevent unnecessary biopsies and invasive treatment显示文摘 | Chang Liu Shi-Liang Liu Zhi-Xian Wang Kai Yu Chun-Xiang Feng Zan Ke Liang Wang Xiao-Yong Zeng | 2018 | Asian Journal of Andrology2018，20，5： | 13 |
| 6 | Molecular Typing of Brucella Suis Collected from 1960s to 2010s in China by MLVA and PFGE显示文摘Brucellosis is a bacterial anthropozoonosis usually caused by Brucella abortus, Brucella melitensis, Brucella suis and Brucella canis. Brucella suis, the causative agent of swine brucellosis, is classified into five biovars and preferentially infects different animal hosts [1] . | LI Zhen Jun CUI Bu Yun CHEN Hai CHEN Jing Diao ZHAO Hong Yan PIAO Dong Ri JIANG Hai ZHANG Li TANG Xu KE Chang Wen YAO zhen TIAN Guo Zhong | 2013 | Biomedical and Environmental Sciences2013，26，6： | 13 |
| 7 | Association Between Serum Uric Acid and Prevalence of Type 2 Diabetes Diagnosed using HbA1c Criteria Among Chinese Adults in Qingdao,China显示文摘Objective To determine whether elevated serum uric acid(UA)levels are associated with type 2 diabetes diagnosed using Hb A1 c levels among Chinese adults.Methods We conducted two population-based cross-sectional studies in Qingdao in China in 2006 and 2009.A total of 6894(39.4% men)subjects aged 35-74 years were included in the data analysis.Newly diagnosed diabetes was defined as Hb A1 c level of ≥6.5%,and prediabetes was classified as Hb A1 c level between 5.7% and 6.4% according to the International Diabetes Federation criteria.Multivariate logistic regression was employed to assess the association between UA and prevalence of type 2 diabetes defined using Glycated hemoglobin A1c(Hb A1 c levels.Results Subjects with prediabetes had higher UA levels than those with normal glucose tolerance,newly diagnosed diabetes,and known diabetes,with corresponding values of 325.1(82.5)μmol/L,310.9(84.2)μmol/L,291.3(81.7)μmol/L,305.2(83.6)μmol/L,respectively(P<0.001 for all comparisons).Binary logistic regression analysis showed that UA was a possible predictor for the prevalence of type 2 diabetes diagnosed using Hb A1 c levels,and the second quartile of UA levels had a higher odds ratio(OR:4.088;95% CI:2.900-5.765)for Hb A1 c than the other quartiles after adjusting for age,body mass index,sex,marital status,education,income,alcohol consumption,smoking,and cardiometabolic parameters.Conclusion Serum UA is significantly associated with type 2 diabetes diagnosed using Hb A1 c levels,independent of other cardiometabolic parameters. | XUE Bai TAN Ji Bin NING Feng SUN Jian Ping ZHANG Ke Yi LIU Li WANG Shao Jie ZHANG Dong Feng QIAO Qing PANG Zeng Chang | 2015 | Biomedical and Environmental Sciences2015，28，12： | 9 |
| 8 | Mutation of kri1l causes definitive hematopoiesis failure via PERK-dependent excessive autophagy induction显示文摘 | Xiao-E Jia Ke Ma Tao Xu Lei Gao Shuang Wu Cong Fu Wenjuan Zhang Zhizhang Wang Kaiyu Liu Mei Dong Changbin Jing Chunguang Ren Zhiwei Dong Yi Chen Yi Jin Qiuhua Huang Xing Chang Min Deng Li Li Lingfei Luo Jun Zhu Yongjun Dang Hung-Chun Chang Leonard I Zon Yi Zhou Saijuan Chen Weijun Pan | 2015 | Cell Research2015，25，8： | 8 |
| 9 | The effects of coal blending on the formation and properties of particulate matter during combustion显示文摘The control of particulate matter (PM) emissions from coal combustion becomes an urgent work due to their adverse effects on human health. Coal blending is a promising option for submicron particulate (PM1) reduction. This study addressed the effects of coal blending on the formation and properties of particulate matter in combustion process. Coal blends from lignite and bituminous coal,with different blend ratios (9:1,7:3,5:5,3:7 and 1:9),were combusted in a drop tube furnace. The mass size distribution,concentration,elemental composition and morphology of the particulate matter generated under O2/N2 and O2/CO2 conditions were characterized. Particulate matter was collected by a low pressure impactor (LPI),which aerodynamically segregated particulates into thirteen fractions with sizes ranging from 0.03 to 9.8 μm. The results showed that coal blending reduced PM1 generation,compared with the calculated average values from the combustion of constituent coals. This indicated that the mineral interactions had a great effect on PM1 reduction. The blend ratio also played an important role in the suppression of PM1 genera-tion. In this experimental study,PM1 generation suffered a maximum suppression at the blend ratio of 7:3. The O2/CO2 atmos-phere affected the formation and properties of the PM1 during coal blends combustion. Compared with the O2/N2 combustion,the interaction of minerals was weakened under O2/CO2 combustion,thus the suppression of PM1 generation decreased after coal blending. Compared with the calculated values,the concentrations and percentages of Ca,Fe in PM1 decreased,but the concentra-tions of Ca,Fe,Si and Al in coarse particulates (PM10+) increased after coal blends combustion. The interactions between the aluminosilicates in the bituminous coal and volatile elements Ca,Fe in the lignite were thought to contribute to the suppression of PM1 generation during the combustion of coal blends. | ZHOU Ke XU MingHou YU DunXi WEN Chang ZHAN ZhongHua YAO Hong | 2010 | Chinese Science Bulletin2010，55，30： | 7 |
| 10 | Notch signaling pathway mediates the immunomodulatory mechanism of Yangfei Huoxue decoction alleviating bleomycin-induced pulmonary fibrosis in rats显示文摘OBJECTIVE: To investigate the immunomodulatory mechanism by which Yangfei Huoxue decoction(YHD) alleviates bleomycin(BLM)-induced pulmonary fibrosis(PF) in rats.METHODS: Rats were randomly divided into two time-point groups(day 14 and 28), and each timepoint group comprised the following six subgroups: control, BLM, dexamethasone(DXM), YHD high dose(YHD-H), YHD middle dose(YHD-M), and YHD low dose(YHD-L). Haematoxylin and eosin and Masson staining, flow cytometry, enzymelinked immunosorbent assay, Western blotting and UPLC-QT of analyses were examined.RESULTS: The results showed that YHD reduced the degree of alveolar inflammation and fibrosis;downregulated the expression of CD28, CD80,CD86, Delta-like 1, Notch2, and Notch3;and upregulated the proportions of Th1/Th2 and Tc1/Tc2. The seven components of YHD were detected.CONCLUSION: The current study indicates that YHD mainly functions by regulating the immune system and that the molecular mechanism may be related to the regulation of the Notch signaling pathway. | Chen Hui Liu Xiao Su Yinxu Chang Ke Wu Haotian Su Guangbao Gong Jiening | 2020 | Journal of Traditional Chinese Medicine2020，40，2： | 7 |
| 11 | A review of recent researches on Bunsen reaction for hydrogen production via S–I water and H2S splitting cycles显示文摘The Bunsen reaction is the center reaction for both the sulfur–iodine water splitting cycle for hydrogen production and the novel hydrogen sulfide splitting cycle for hydrogen and sulfuric acid production from the sulfur-containing gases.This paper reviews the research progress of the Bunsen reaction in recent 10–15 years.Researches were initially focused on the optimization of the operating conditions of the conventional Bunsen reaction requiring excessive water and iodine to improve the products separation efficiency and to avoid the side reactions and iodine vapor deposition.Alternative methods including electrochemical methods,precipitation methods,and non-aqueous solvent methods had their respective advantages,but still faced challenges.In development of the technology of H2S splitting cycle,dissolving iodine in toluene solvent could render the Bunsen reaction to occur with the flowable I2 stream at ambient temperature such that the side reactions and iodine vaporization can be avoided and the corrosion hazard lessened.It also prevented the Bunsen reaction from using excessive iodine and water.The products from the Bunsen reaction including HI,H2SO4,H2O,and toluene could be directly electrolyzed. | Ke Zhang Weiren Bao Liping Chang Hui Wangg | 2019 | Journal of Energy Chemistry2019，28，6： | 7 |
| 12 | 狄氏副拟杆菌通过产生琥珀酸和次级胆汁酸减轻肥胖和代谢功能障碍显示文摘文章简介狄氏副拟杆菌是人体核心菌群之一,相关性分析表明其含量与肥胖、非酒精性脂肪肝、糖尿病等疾病状态呈显著负相关,提示其可能在糖脂代谢方面发挥正向调节作用。本研究发现狄氏副拟杆菌可以显著改善高脂饮食诱导肥胖(DIO)小鼠及ob/ob肥胖模型小鼠的肥胖、胰岛素抵抗、脂代谢紊乱及非酒精性脂肪肝症状。 | 汪锴 廖明芳 周楠 Li Bao Ke Ma Zhongyong Zheng Yujing Wang Chang Liu Wenzhao Wang Jun Wang 刘双江 刘宏伟 | 2020 | 科学新闻2020，，2： | 6 |
| 13 | High levels of circulating GM-CSF^(+) CD4^(+) T cells are predictive of poor outcomes in sepsis patients: a prospective cohort study显示文摘Granulocyte colony-stimulating factor(GM-CSF),produced by CD4^(+)T cells,has recently been implicated in the pathogenesis of inflammatory diseases,such as multiple sclerosis and juvenile arthritis.However,the role of GM-CSF-producing CD4^(+)T cells in sepsis remains unknown.This study reports peripheral changes in GM-CSF-producing CD4^(+)T cells in septic patients and the possible underlying mechanism by which GM-CSF influences the outcome of sepsis.Forty-three septic patients,20 SIRS patients,and 20 healthy controls were enrolled in this study and followed for 28 days to assess mortality.We measured the peripheral frequency of GM-CSF^(+)CD4^(+)T cells and recorded their associated relationship with disease progression.Our data demonstrated that peripheral GM-CSF-producing CD4^(+)T cells were significantly higher in septic patients than in both SIRS patients and healthy controls.These cells exhibit a memory phenotype and impaired IFN-γ-secreting capacity in sepsis patients.Using a receiver operating curve analysis with 8.01%as a cut-off point,the percentage of GM-CSF^(+)CD4^(+)T cells could predict the outcome of septic patients.Combined with the increase in GM-CSF-producing CD4^(+)T cells,inflammatory cytokines IL-1βand IL-6 were also upregulated.Using an in vitro neutrophil model,we found that GM-CSF inhibited C3aR expression,while inducing IL-8 production.Furthermore,this effect was transferrable in plasma from sepsis patients and was attenuated by inhibition of GM-CSF using an anti-GM-CSF antibody.These results indicate that GM-CSF-producing CD4^(+)T cells may serve as a marker of sepsis severity.Thus,targeting GM-CSF overproduction may benefit sepsis patients. | Huihuang Huang Siyu Wang Tianjun Jiang Rong Fan Zheng Zhang Jinsong Mu Ke Li Yonggang Wang Lei Jin Fang Lin Jie Xia Lijian Sun Biao Xu Chengcheng Ji Jing Chen Juan Chang Bo Tu Bing Song Chao Zhang Fu-Sheng Wang Ruonan Xu | 2019 | Cellular & Molecular Immunology2019，16，6： | 6 |
| 14 | Cloning and characterization of three cheB genes in Leptospira interrogans显示文摘活动性和趋化性系统为 leptospires 的毒力是批评的。有在 leptospires 定位的通常认为的趋化性相当或相同的事物的多重拷贝大染色体。从螺旋体 interrogans 紧张 Lai 的 CheB1 和 CheB3 被预言有一个全球象 CheB 一样领域,但是 CheB2 被预言仅仅有一个 C 终端受动器领域。以便验证三通常认为的 cheB 基因的功能,他们被克隆进 pQE31 向量然后分别地,在野类型的 Escherichia coli 紧张 RP437 和 cheB 有缺陷者紧张 RP4972 表示了。聚集的试金的结果和 CheB1 的预言的第三的结构和 L 的 CheB3。interrogans 紧张 Lai 建议一个 N 终端规章的领域的缺席可以是原因之一让 CheB2 的失败补充 E。coli cheB 异种。而且, CheB2 在 leptospires 的相互作用网络完全连接到 CheR1 和 CheR3。一起拿,这些结果显示 CheB2 不能独自工作,并且在某些生理的条件下面,工作可以要求 CheB3 和 CheR1。趋化性基因相当或相同的事物的多重拷贝的存在建议了那 L。interrogans 紧张 Lai 可能有一条更复杂的化学感应的小径。 | Ke Dong Qingtian Li Chang Liu Yunyi Zhang Guoping Zhao Xiaokui Guo | 2010 | Acta Biochimica et Biophysica Sinica2010，42，3： | 5 |
| 15 | Relationship of the preoperative NRS 2002 score,PG-SGA score,and serum indices with postoperative complications in patients with gastric cancer显示文摘Objective To examine the utility of the Nutrition Risk Screening 2002(NRS 2002),Patient-Generated Subjective Global Assessment(PG-SGA)and serum factors for the preoperative evaluation of gastric cancer patients.Methods We examined 181 gastric cancer patients treated at the First Affiliated Hospital of Guangxi Medical University from January 2015 to January 2018.Nutritional assessments were administered within 48 h of admission.The body mass index(BMI)and serum factors were measured,and information on preoperative nutritional support and postoperative complications was recorded.Results Both the NRS 2002 and PG-SGA had positive correlations with age(P<0.05),and negative correlations with albumin,prealbumin,transferrin,hemoglobin,BMI,and bodyweight(P<0.05).The NRS 2002 and PG-SGA scores were positively correlated with each other(r=0.683,P<0.01),but had poor consistency(κ=0.357,P<0.01).During the preoperative period,33.2%of patients received nutritional support,mainly enteral nutrition.The nutritional risk group(NRS 2002≥3)received more support than the group without nutritional risk(NRS 2002<3;P<0.05).Patients with nutritional risk or malnutrition who received preoperative nutritional support had fewer postoperative complications than unsupported patients.The overall rate of complications was 12.2%,and the rate of severe complications(gradeⅢor above)was 5.5%.The malnutrition and nutritional risk groups had higher rates of severe complications.Conclusions The combined application of the NRS 2002,PG-SGA,BMI,and serum nutritional indices was useful for the nutritional screening and assessment of preoperative gastric cancer patients.The NRS 2002 and PG-SGA provided guidance on the need for nutritional support during the preoperative period. | Dao Lai Huang Xiang Hua Wu Chang Li Wang Jun Qiang Chen Kui Jia Jing Zhou Li Sheng Lu Yong Sheng Zhang Jing Jin Ke Ke Huang | 2021 | Journal of Nutritional Oncology2021，6，2： | 5 |
| 16 | A Fiber Tractography Study of Social-Emotional Related Fiber Tracts in Children and Adolescents with Autism Spectrum Disorder显示文摘The symptoms of autism spectrum disorder(ASD) have been hypothesized to be caused by changes in brain connectivity. From the clinical perspective, the‘‘disconnectivity'' hypothesis has been used to explain characteristic impairments in ‘‘socio-emotional'' function.Therefore, in this study we compared the facial emotional recognition(FER) feature and the integrity of socialemotional-related white-matter tracts between children and adolescents with high-functioning ASD(HFA) and their typically developing(TD) counterparts. The correlation between the two factors was explored to find out if impairment of the white-matter tracts is the neural basis of social-emotional disorders. Compared with the TD group,FER was significantly impaired and the fractional anisotropy value of the right cingulate fasciculus was increased in the HFA group(P \ 0.01). In conclusion, the FER function of children and adolescents with HFA was impaired and the microstructure of the cingulate fasciculus had abnormalities. | Yun Li Hui Fang Wenming Zheng Lu Qian Yunhua Xiao Qiaorong Wu Chen Chang Chaoyong Xiao Kangkang Chu Xiaoyan Ke | 2017 | Neuroscience Bulletin2017，33，6： | 5 |
| 17 | Calcium-mineralized polypeptide nanoparticle for intracellular drug delivery in osteosarcoma chemotherapy显示文摘The acidic microenvironments of tumor tissue and cells provide an opportunity for the development of pHresponsive drug delivery systems in cancer therapy.In this work,we designed a calcium carbonate(CaCO3)-corecrosslinked nanoparticle of methoxy poly(ethylene glycol)-block-poly(L-glutamic acid)through mineralization for intracellular delivery of doxorubicin(DOX),referred to as CaNP/DOX.CaNP/DOX exhibited high drug loading capability,uniform nanoparticle size,and pH-dependent DOX release.In the meantime,the enhanced cell uptake,superior cytotoxicity toward mouse osteosarcoma K7 cells,extended circulation half-life,and improved accumulation of DOX in K7 allograft tumor from CaNP/DOX were also demonstrated.More interestingly,CaNP/DOX displayed improved antitumor effect and reduced side effects against the K7 osteosarcoma-allografted mouse model and the 143B orthotopic osteosarcoma mouse model.Given the superior properties of Ca-mineralized polypeptide nanoparticle for intracellular drug delivery,the smart drug delivery system showed strong competitiveness in clinical chemotherapy of cancers. | Ke Li Di Li Li Zhao Yonghe Chang Yi Zhang Yan Cui Zhiyu Zhang | 2020 | Bioactive Materials2020，5，3： | 4 |
| 18 | Two new compounds from Zingiber officinale显示文摘新周期的 diarylheptanoid, 1,5-epoxy-3-hydroxy-1-(3-methoxy-4,5-dihydroxyphenyl )-7-(4-hydroxyphenyl)-heptane (1 ) ,以及新单音的萜烯, 10-O- β - d-glucopyranosyl-hydroxy cineole (2 ) 从姜 officinale 的根茎被孤立。混合物的结构 1 和 2 被建立基于他们的光谱数据。另外,这些混合物的抗氧化剂活动也被测量。 | Yu Zhao Qiao Feng Tao Rong Ping Zhang Chang Xin Zhou Hui Dou Shu Yun Shi Ye Cheng Xiao Lian Li Sun Su Zeng Ke Xin Huang Xiao Dong Zhang Xiao Kun Li | 2007 | Chinese Chemical Letters2007，18，10： | 4 |
| 19 | Synthesis and activity evaluation of some novel derivatives of 4,5,6,7-tetrahydrothieno [3,2-c]-pyridine显示文摘4,5,6,7-tetrahydrothieno 的新奇衍生物的二个系列[3,2-c ] pyridine 被 1H NMR 和 MS 综合,在结构上描绘了。他们的在里面 vivo antiplatelet 聚集活动被评估。 | Die Cheng Deng Ke Liu MO Liu Ying Liu Wei Ren Xu Chang Xiao Liu | 2008 | Chinese Chemical Letters2008，19，6： | 4 |
| 20 | Boosting triplet self-trapped exciton emission in Te(IV)-doped Cs_(2)SnCl_(6) perovskite variants显示文摘Perovskite variants have attracted wide interest because of the lead-free nature and strong self-trapped exciton (STE) emission. Divalent Sn(II) in CsSnX3 perovskites is easily oxidized to tetravalent Sn(IV), and the resulted Cs2SnCl6 vacancy-ordered perovskite variant exhibits poor photoluminescence property although it has a direct band gap. Controllable doping is an effective strategy to regulate the optical properties of Cs2SnX6. Herein, combining the first principles calculation and spectral analysis, we attempted to understand the luminescence mechanism of Te4+-doped Cs2SnCl6 lead-free perovskite variants. The chemical potential and defect formation energy are calculated to confirm theoretically the feasible substitutability of tetravalent Te4+ ions in Cs2SnCl6 lattices for the Sn-site. Through analysis of the absorption, emission/excitation, and time-resolved photoluminescence (PL) spectroscopy, the intense green-yellow emission in Te4+:Cs2SnCl6 was considered to originate from the triplet Te(IV) ion 3P1→1S0 STE recombination. Temperature-dependent PL spectra demonstrated the strong electron-phonon coupling that inducing an evident lattice distortion to produce STEs. We further calculated the electronic band structure and molecular orbital levels to reveal the underlying photophysical process. These results will shed light on the doping modulated luminescence properties in stable lead-free Cs2MX6 vacancy-ordered perovskite variants and be helpful to understand the optical properties and physical processes of doped perovskite variants. | Ruosheng Zeng Kun Bai Qilin Wei Tong Chang Jun Yan Bao Ke Jialuo Huang Liushun Wang Weichang Zhou Sheng Cao Jialong Zhao Bingsuo Zou | 2021 | Nano Research2021，14，5： | 4 |
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