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Science China Chemistry 2023年第7期66卷 1989-1996页

作者： Wei deng Ying-Qian Zhou shan-Nan Du Ze-Yu Ruan Si-Guo Wu Jun-Liang Liu Ming-Liang Tong Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistrySun Yat-Sen UniversityGuangzhou 510006China

Crystal-field symmetry of lanthanide ions plays a critical role in suppressing quantum tunneling of magnetization(QTM)in single-molecule magnets(SMMs),but high-performance SMM design and modulation remain challenging only in view of the geometric symmetry of the first coordination ***,two bis(semicarbazone)/bis(thiosemicarbazone)dysprosium singleion magnets with pentagonal bipyramid geometry were reported,and bis(thiosemicarbazone)lanthanide complexes have never been reported to the best of our *** served as good archetypes to study the magneto-structural relationships based on the charge *** complex with more ideal geometric symmetry displays fast zero-field QTM with negligible“effective barrier”,owing to the defective charge *** modulating the transverse crystal field via the replacement of the O sites with the less charged and larger radius S atoms,it results in lower geometric but higher charge-distribution symmetry,giving rise to the significant suppression of QTM and the enhancement of reversal barrier up to ca.1,000 *** results demonstrate that the charge-distribution symmetry can be chemically tailored by modification of the crystal field,which is essential for designing high-performance SMMs.

关键词： single-molecule magnets crystal field symmetry strategy electrostatic potential analysis bis(thiosemicarbazone)

Low-Temperature Aging Provides 22% E cient Bromine-Free and Passivation Layer-Free Planar Perovskite Solar Cells

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Nano-Micro Letters 2020年第7期12卷 29-42页

作者： Xin Wang Luyao Wang Tong shan Shibing Leng Hongliang Zhong Qinye Bao Zheng-Hong Lu Lin-Long deng Chun-Chao Chen School of Material Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China School of Chemistry and Chemical Engineering Shanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Key Laboratory of Solar Materials and Devices Department of Electronic ScienceSchool of Physics and Electronic ScienceEast China Normal UniversityShanghai 200240People’s Republic of China Department of Materials Science and Engineering University of Toronto184 College StreetTorontoON M5S 3E4Canada Pen-Tung Sah Institute of Micro-Nano Science and Technology Xiamen UniversityXiamen 361005People’s Republic of China

Previous reports of formamidinium/methylamine(FAMA)-mixed halide perovskite solar cells have focused mainly on controlling the morphology of the perovskite film and its interface—for example,through the inclusion of bromine and surface *** this paper,we describe a new processing pathway for the growth of a high-quality bromine-free FAMAPbI3 halide perovskites via the control of intermediate *** low-temperature aging growth(LTAG)of a freshly deposited perovskite film,α-phase perovskites can be seeded in the intermediate phase and,at the same time,prevent beta-phase perovskite to *** postannealing,large grain-size perovskites with significantly reduced PbI2 presence on the surface can be obtained,thereby eliminating the need of additional surface passivation *** pristine LTAG-treated solar cells could provide PCEs of greater than 22%without elaborate use of bromine or an additional passivation *** importantly,when using this LTAG process,the growth of the pure alpha-phase FAMAPbI3 was highly reproducible.

关键词： Aging growth Bromine-free Passivation layer Lead iodide Perovskite solar cells

Quasi-angle-preserving mesh deformation using the least-squares approach

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Journal of Zhejiang University-Science C(Computers and Electronics) 2014年第9期15卷 754-763页

作者： Gang XU Li-shan deng Wen-bing GE Kin-chuen HUI Guo-zhao WANG Yi-gang WANG Department of Computer Science Hangzhou Dianzi University Department of Mechanical and Automation Engineering The Chinese University of Hong Kong Department of Mathematics Zhejiang University

We propose an angle-based mesh representation, which is invariant under translation, rotation, and uniform scaling, to encode the geometric details of a triangular mesh. Angle-based mesh representation consists of angle quantities defined on the mesh, from which the mesh can be reconstructed uniquely up to translation, rotation,and uniform scaling. The reconstruction process requires solving three sparse linear systems: the first system encodes the length of edges between vertices on the mesh, the second system encodes the relationship of local frames between two adjacent vertices on the mesh, and the third system defines the position of the vertices via the edge length and the local frames. From this angle-based mesh representation, we propose a quasi-angle-preserving mesh deformation system with the least-squares approach via handle translation, rotation, and uniform scaling. Several detail-preserving mesh editing examples are presented to demonstrate the effectiveness of the proposed method.

关键词： Mesh deformation Angle-based representation Detail-preserving Least-squares approach

Propofol vs traditional sedative agents for endoscopic retrograde cholangiopancreatography:A meta-analysis

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World Journal of Gastroenterology 2011年第30期17卷 3538-3543页

作者： Lu-Long Bo Yu Bai Jin-Jun Bian Ping-shan Wen Jin-Bao Li Xiao-Ming deng Department of Anesthesiology and Intensive Care Changhai Hospital Second Military Medical University 200433 Shanghai China Evidence-Based Medicine Group Department of Gastro-enterology Changhai Hospital Second Military Medical University 200433 Shanghai China

AIM:To investigate the efficacy and safety of propofol sedation for endoscopic retrograde cholangiopancreatography(ERCP).METHODS:Databases including PubMed,Embase,and the Cochrane Central Register of Controlled Trials updated as of October 2010 were *** outcome measures were ERCP procedure duration,recovery time,incidence of hypotension and ***:Six trials with a total of 663 patients were *** pooled mean difference in ERCP procedure duration between the propofol and traditional sedative agents was-8.05(95%CI:-16.74 to 0.63),with no significant difference between the *** mean difference in the recovery time was-18.69(95%CI:-25.44 to-11.93),which showed a significant reduction with use of propofol *** with traditional sedative agents,the pooled OR with propofol sedation for ERCP causing hypotension or hypoxia was 1.69(95%CI:0.82-3.50)and 0.90(95%CI:0.55-1.49),respectively,which indicated no significant difference between the ***:Propofol sedation during ERCP leads to shorter recovery time without an increase of cardiopulmonary side *** sedation can provide adequate sedation during ERCP.

关键词： Endoscopic retrograde cholangiopancrea-tography Propofol Sedative agents Meta-analysis Outcomes

Mild hyperthermia-enhanced chemo-photothermal synergistic therapy using doxorubicin-loaded gold nanovesicles

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Chinese Chemical Letters 2021年第8期32卷 2411-2414页

作者： Zhuoting deng Chao Jiang Muhammad Rizwan Younis shan Lei Yaling He Haoxing Zheng Peng Huang Jing Lin Marshall Laboratory of Biomedical Engineering International Cancer CenterLaboratory of Evolutionary Theranostics(LET)School of Biomedical EngineeringShenzhen University Health Science CenterShenzhen 518060China

Gold nanovesicles(GVs) with unique plasmonic property and large cavity hold great potential as a stimuli-responsive nanocarrier to deliver drugs for efficient tumor chemotherapy and other therapies ***,we developed doxorubicin-loaded gold nanovesicles(DGVs),offering infrared thermal(IRT) and photoacoustic(PA) dual-modal imaging guided mild hype rthermia-enhanced chemophotothermal cancer synergistic *** DGVs are self-assembled by gold nanoparticles modified with amphiphilic copolymer in a predetermined concentration of doxorubicin through film rehydration *** the influence of laser excitation,the as-prepared DGVs exhibited good photothermal effect,which triggered the structural disruption of GVs and thus,allowed the efficient release of encapsulated DOX to enhance cell uptake for fluorescence imaging and tumor chemotherapy,*** addition,DGVs also showed a strong PA and IRT signals in *** study demonstrated the potential of DGVs as stimuli-responsive drug delivery systems and cancer theranostics.

关键词： Mild hyperthermia Chemo-photothermal synergistic therapy Gold nanovesicles Doxorubicin Photoacoustic imaging

PhaseⅠstudy of chlorogenic acid injection for recurrent high-grade glioma with long-term follow-up

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Cancer Biology & Medicine 2023年第6期20卷 465-476页

作者： Zhuang Kang shan Li Xun Kang Jing deng Huarong Yang Feng Chen Jiandong Jiang Jie Zhang Wenbin Li Department of Neuro-oncology Cancer CenterBeijing Tiantan HospitalCapital Medical UniversityBeijing 100070China Department of Oncology Beijing Shijitan HospitalCapital Medical UniversityBeijing 100038China Sichuan Jiuzhang Biological Science and Technology Co.Ltd Chengdu 610095China Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100070China

Objective:This study was aimed at analyzing the efficacy and safety of an injectable form of chlorogenic acid(CGA)in patients with recurrent high-grade glioma after standard of care treatments,through a first-in-human,open-label,dose-escalation phase I ***:A total of 26 eligible patients were enrolled,received intramuscular CGA injections at 5 dose levels,and were followed up for 5 *** was well tolerated,and the maximum tolerated dose was 5.5 mg/***:The most common treatment-related adverse events occurred at the sites of *** grade 3 or 4 adverse events(e.g.,drug allergy)were reported for these patients except for induration at the injection sites.A clinical pharmacokinetic study showed that CGA was rapidly eliminated from the plasma,with a t_(1/2)of 0.95–1.27 h on day 1 and 1.19–1.39 h on day 30,and no detectable CGA was observed on days 9,11,13,23,25,27,and 29 before CGA *** the first treatment cycle,52.2%of patients(12 of 23)achieved stable ***-term follow-up indicated an estimated median overall survival of 11.3 months for all 23 evaluable *** the 18 patients with grade 3 glioma,the median overall survival was 9.5 *** patients remained alive at the cutoff ***:This phase I study demonstrated that CGA has a favorable safety profile(with no severe toxicity),and provides preliminary clinical benefits for patients with high grade glioma relapsing after prior standard therapies,thus shedding light on the potential clinical application of CGA for recurrent grade 4 glioma.

关键词： injection glioma treatment

Parity and carotid atherosclerosis in elderly Chinese women

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Journal of Geriatric Cardiology 2020年第12期17卷 759-765页

作者： Xiao-Yan WANG Fei YE Li-Xiong ZENG shan TU Wen-Zhi LUO Xu deng Zhi-Hui ZHANG Department of Cardiology the Third Xiangya HospitalCentral South UniversityChangshaChina

Background The relationship between parity and atherosclerosis has been reported in some ethnic ***,results regarding Chinese women are still *** study aimed to investigate the association of parity and carotid atherosclerosis,which has a predictive value of subsequent atherosclerotic events in elderly Chinese *** A total of 2,052 participants from the medical examination center of the Third Xiangya Hospital were enrolled in the study.A standardized,structured questionnaire was administered to collect information on subjects’demographic characteristics,socioeconomic status,and cardiovascular risk ***-resolution ultrasound was used to examine carotid plaques and carotid intima-media thickness(IMT).Results The mean age of participants was 66.1±5.5 *** with more birth appeared to have a higher risk of carotid artery plaques.A multivariate-adjusted model yielded an odds ratio of 1.38(95%CI:12%-70%,P=0.003)per birth.A positive association was observed between parity and common carotid IMT(β±SE:0.029±0.006,P<0.001),and internal carotid IMT(β±SE:0.011±0.005,P=0.03)in a univariate model;however,these associations became non-significant in multivariate-adjusted *** common carotid IMT was classified into an IMT≥1 mm group and an IMT<1 mm group,higher parity was associated with more obvious thickening both in the unadjusted model(OR=1.61,95%CI:1.29-2.00,P<0.001)and in the fully adjusted model(OR=1.43,95%CI:1.09-1.88,P=0.01).Conclusions There is a positive association between parity and risk of carotid plaques,as well as between parity and risk of obvious thickening for common carotid IMT in elderly Chinese women,indicating multiparous women might experience more atherosclerotic challenges.

关键词： Atherosclerosis Elderly women Parity

NUMERICAL SIMULATION OF TURBULENT FLOW THROUGH THROAT-TYPE ENERGY-DISSIPATORS

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Journal of Hydrodynamics 2002年第3期14卷 135-138页

作者： Dong, Jian-Wei Xu, Wei-Lin deng, Jun Liu, shan-Jun Wang, Wei Qu, Jing-Xue Hydraulics Lab. of High Speed Flows Sichuan Univ. Chengdu 610065 China

The flow through the throat-type energy-dissipators is calculated by using an axis-symmetrical K-Ε turbulence model. The velocity field, the pressure field and the distributions of turbulent energy and its dissipation rate are acquired. The energy dissipation through the throat-type energy-dissipators can be seen in detail. The calculated pressure distribution is compared with the measured and is in good agreement. The results are useful to understand deeply the flow characteristics of the throat-type energy-dissipators.

关键词： Computer simulation Flow of fluids Pressure distribution Turbulent flow Velocity

Efficacy of noninvasive evaluations in monitoring inflammatory bowel disease activity: a prospective study in China

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World Journal of Gastroenterology 2017年第46期23卷 8235-8247页

作者： Jin-Min Chen Tao Liu shan Gao Xu-Dong Tong Fei-Hong deng Biao Nie Department of Gastroenterology Xiangyang Central HospitalHubei University of Arts and Science Department of Gastroenterology the Sixth Affiliated Hospital of Sun Yat-sen University Guangdong Provincial Key Laboratory of Gastroenterology Department of GastroenterologyNanfang HospitalSouthern Medical University Department of Gastroenterology the First Affiliated Hospital of Jinan UniversityJinan University

AIM To optimize the efficacy of noninvasive evaluations in monitoring the endoscopic activity of inflammatory bowel disease(IBD).METHODS Fecal calprotectin(FC), clinical activity index(CDAI or CAI), C-reactive protein(CRP), erythrocyte sedimentation rate(ESR), and procalcitonin(PCT) were measured for 136 IBD patients. Also, FC was measured in 25 irritable bowel syndrome(IBS) patients that served as controls. Then, endoscopic activity was determined by other two endoscopists for colonic or ileo-colonic Crohn's disease(CICD) with the "simple endoscopic score for Crohn's disease"(SES-CD), CDrelated surgery patients with the Rutgeerts score, and ulcerative colitis(UC) with the Mayo score. The efficacies of these evaluations to predict the endoscopic disease activity were assessed by Mann-Whitney test, χ~2 test, Spearman's correlation, and multiple linear regression *** The median FC levels in CD, UC, and IBS patients were 449.6(IQR, 137.9-1344.8), 497.9(IQR, 131.7-118.0), and 9.9(IQR, 0-49.7) μg/g, respectively(P < 0.001). For FC, CDAI or CAI, CRP, and ESR differed significantly between endoscopic active and remission in CICD and UC patients, but not in CD-related surgery patients. The SES-CD correlated closely with levels of FC(r = 0.802), followed by CDAI(r = 0.734), CRP(r = 0.658), and ESR(r = 0.557). The Mayo score also correlated significantly with FC(r = 0.837), CAI(r = 0.776), ESR(r = 0.644), and CRP(r = 0.634). For FC, a cut-off value of 250 μg/g indicated endoscopic active inflammation with accuracies of 87.5%, 60%, and 91.1%, respectively, for CICD, CD-related surgery, and UC patients. Moreover, clinical FC activity(CFA) calculated as 0.8 × FC + 4.6 × CDAI showed higher area under the curve(AUC) of 0.962 for CICD and CFA calculated as 0.2 × FC + 50 × CAI showed higher AUC(0.980) for UC patients than the FC. Also, the diagnostic accuracy of FC in identifying patients with mucosal inflammation in clinical remission was reflected by an AUC of 0.91 fo

关键词： Inflammatory bowel disease Crohn’s disease Ulcerative colitis Fecal calprotectin Disease activity

Engineering a high-barrier d-f single-molecule magnet centered with hexagonal bipyramidal Dy(Ⅲ)unit

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Science China Chemistry 2024年第10期67卷 3291-3298页

作者： Wei deng Chan-Ying Yao Yan-Cong Chen Ying-Qian Zhou shan-Nan Du Jun-Liang Liu Ming-Liang Tong Key Laboratory of Bioinorganic and Synthetic Chemistry of Ministry of Education School of ChemistryInstitute of Green Chemistry and Molecular EngineeringGuangdong Basic Research Center of Excellence for Functional Molecular EngineeringSun Yat-sen UniversityGuangzhou 510006China

In the pursuit of high-performance single-molecule magnets(SMMs),incorporating intramolecular magnetic coupling emerges as a pivotal *** these,d-f SMMs have garnered significant attention due to their remarkable versatility,which lies in their ability to tune coordination environments and facilely substitute metal ***,achieving performance-centric d-f SMMs through the synergistic interplay between highly anisotropic f ions and d-f magnetic interactions remains a formidable *** mononuclear hexagonal bipyramidal(D_(6h))Dy^(Ⅲ)SMMs have been successfully isolated,the exploration of d-f SMMs featuring D_(6h)-lanthanide metal centers remains uncharted *** this study,we employed planar bipodal ligands in conjunction with“staple-like”axial phenoxide ligands to synthesize the first hexagonal bipyramidal d-f ***,this compound exhibits alternating-current magnetic susceptibilities peaking up to 68 K with an energy barrier surpassing 1,200 K,thus establishing a new benchmark within the heterometallic d-f SMM landscape inclusive of complexes with diamagnetic d metals and paramagnetic f ***,the ferromagnetic interaction at the d-f sites engenders oscillating relaxation times contingent on the magnetic field—a characteristic distinct from mononuclear *** findings shed light on a deliberate design approach for d-f SMMs,emphasizing the cooperative utilization of high-barrier lanthanide modules alongside d ions through magnetic *** synergy significantly enhances and diversifies the magnetic dynamics of these intriguing molecular systems.

关键词： single-molecule magnets magnetic coupling crystal engineering hexagonal bipyramid energy barrier