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炭黑负载Co-吡啶化合物的合成及催化性能研究

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应用化工 2018年第7期47卷 1429-1433页

作者：朱胜兰杨世航黄廷洪杨虎四川理工学院化学工程学院四川自贡643000

采用配位聚合物法制备Co-吡啶催化剂,制成炭黑负载Co-吡啶光催化剂,考察金属配比、催化剂用量、降解时间、降解温度等对催化降解甲基橙效率的影响。结果表明,金属配比钴∶吡啶=1∶0.5,催化剂用量10 mg,紫外光照6 h时,降解率达82.87%;金... 详细信息

采用配位聚合物法制备Co-吡啶催化剂,制成炭黑负载Co-吡啶光催化剂,考察金属配比、催化剂用量、降解时间、降解温度等对催化降解甲基橙效率的影响。结果表明,金属配比钴∶吡啶=1∶0.5,催化剂用量10 mg,紫外光照6 h时,降解率达82.87%;金属配比钴∶吡啶=1∶1,吸附剂用量20 mg,吸附时间90 min,吸附温度60℃时,吸附降解率达98.1%。

关键词： Co-吡啶光催化炭黑负载甲基橙

Pd1/CeO2 single-atom catalyst for alkoxycarbonylation of aryl iodides

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Science China Materials 2020年第6期63卷 959-964页

作者： Fang Chen Tianbo Li xiaoli Pan yalin Guo Bing h an Fei Liu Botao Qiao Aiqin W ang Tao Zhang CAS Key Laboratory of Science and Technology on Applied Catalysis Dalian Institute of Chemical PhysicsChinese Academy of SciencesDalian 116023China University of Chinese Academy of Sciences Beijing 100049China Dalian National Laboratory for Clean Energy Dalian 116023China

heterogenization of the homogeneous catalysis has been studied for almost 50 ***-atom catalysis has the advantages of both homo-and heterogeneous *** has been proposed,and subsequently experimentally verified that single-atom catalysis is able to bridge homo-and heterogeneous catalysis,thus providing a new avenue to realize the heterogenization of homogeneous *** of aryl halides is an effective method for the direct synthesis of carboxylic acid derivatives,and is commonly catalyzed by Pd-based homogeneous complexes with N/P-containing ligands and organic/inorganic ***,we firstly reported that Pd1/CeO2 single-atom catalyst showed good performance in the alkoxycarbonylation of aryl iodides *** base-free and ligand-free conditions,Pd1/CeO2 single-atom catalyst can transfer different aryl iodides to corresponding *** catalyst can be easily recovered and reused four times without significant loss of reactivity.

关键词： single-atom catalyst alkoxycarbonylation Pd1/CeO2 heterogenization base-free

Non-epitaxial growth of highly oriented transition metal dichalcogenides with density-controlled twin boundaries

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The Innovation 2023年第6期4卷 30-37页

作者： Juntong Zhu Zhili hu Shasha Guo Ruichun Luo Maolin yu ang Li Jingbo Pang Minmin xue Stephen J.Pennycook Zheng Li Zhuhua Zhang Wu Zhou School of Physical Sciences CAS Key Laboratory of Vacuum PhysicsUniversity of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Mechanics and Control for Aerospace Structures Key Laboratory for Itelligent Nano Materials and Devices of Ministry of Educationand Institute for Frontier ScienceNanjing University of Aeronautics and AstronauticsNanjing 210013China School of Materials Science and Engineering Nanyang Technological UniversitySingapore 639798Singapore Environmental Chemistry and Materials Centre Nanyang Environment and Water Research InstituteNanyang Technological UniversitySingapore 637141Singapore

Twin boundaries(TBs)in transition metal dichalcogenides(TMDs)constitute distinctive one dimensional electronic systems,exhibiting intriguing physical and chemical properties that have garnered significant attention in the fields of quantum physics and ***,the controlled manipula-tion of TBs in terms of density and specific atomic configurations remains a fomidable *** this study,we present a non-epitaxial growth approach that enables the controlled and large scale fabrication of homoge-neous catalytically active TBs in monolayer TMDs on arbitrary ***,the density achieved using this strategy is six times higher than that observed in convention chemical vapor deposition(CVD)-grown *** rigorous experimental analysis and multigrain Wulff construc tion simulations,we elucidate theroleof regulating themetal source diffusion process,which serves as the key factor for inducing the self-oriented growth ofTMD grains and the formation of unified ***,we demonstrate that this novel growth mode can be readily incorporated into the conventional CVD growth method by making a simple modification of the growth tempera-ture profle,thereby offering a universal approach for engineering of grain boundaries in two-dimensional materials.

关键词： grain transition tempera

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正相伴序列的矩完全收敛性

云南大学学报（自然科学版） 2011年第1期33卷 6-10页

作者：傅可昂浙江工商大学统计与数学学院浙江杭州310018

设{xn;n≥1}是一均值为0、方差有限的正相伴平稳序列.记Sn=sum xk,Mn from k=1 to n =maxk≤n︱Sk︱,n≥1.证明了在一定条件下,由E︱x1︱p(︱x1︱1/α)0,有sum npα-2-αh from n=1 to ∞ (n)E{Mn-εn1/p}+<∞,其中h(n)为一在无穷处的... 详细信息

设{Xn;n≥1}是一均值为0、方差有限的正相伴平稳序列.记Sn=sum Xk,Mn from k=1 to n =maxk≤n︱Sk︱,n≥1.证明了在一定条件下,由E︱X1︱p(︱X1︱1/α)0,有sum npα-2-αh from n=1 to ∞ (n)E{Mn-εn1/p}+h(n)为一在无穷处的缓变函数,{x}+=max{x,0}.

关键词：正相伴序列完全收敛性矩完全收敛性

Spectrophotometric Characterization of the Complex Generated in Solution for the Reaction of h[Ru(III)Cl<sub>2</sub>(h<sub>2</sub>EDTA)] Complex with AETS Modifier Agent

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Open Journal of Synthesis Theory and Applications 2014年第4期3卷 37-43页

作者： angélica M. Lazarin Rosana Lázara Sernaglia Departamento de Química Universidade Estadual de Maringá Maringá Brazil

Spectrophotometric method was used to evaluate the kinetic of the complex formation from the reaction between h[Ru(III)Cl2(h2EDTA)] and the modifier agent [3-(2-aminoethyl)aminopropyl] trimethoxysilane (AEATS) (μ = 0.50 ***-3 with NaCF3COO, 298.15 K), in pseudo-first order conditions. These studies showed that the reactions are successives producing several species influenced by the concentrations ratio. The electronics spectrum of all solutions showed a band in 457 nm with variable molar absorptivity (ε).

关键词： [3-(2-Aminoethyl)aminopropyl]trimethoxysilane h[Ru(III)Cl2(h2EDTA)] Complex Spectrophotometric Method Molar Absorptivity

high Response Rate to Second-Line Combination Antiangiogenic Chemotherapy in Patients with Metastatic Melanoma

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Journal of Cancer Therapy 2016年第12期7卷 908-918页

作者： Ozan haase Ozan angün Ewan A. Langan Franziska hübner Florian M. Vogt Christoph Thorns Detlef Zillikens Patrick Terheyden Department of Dermatology University of Lübeck Lübeck Germany Department of Radiology University of Lübeck Lübeck Germany Institute of Pathology Section for Hematopathology and Endocrine Pathology University of Lübeck Lübeck Germany

Objectives: Despite the array of new treatment strategies for the management of metastatic melanoma, the prognosis remains poor when immune checkpoint inhibition and targeted therapy options are exhausted. The antiangiogenic monoclonal antibody bevacizumab has documented its efficacy in the treatment of several solid tumors, when used in combination with standard chemotherapy. Phase II studies and case series have led to the speculation that it may also improve the prognosis when used in stage IV melanoma. Therefore, we investigated the influence of bevacizumab, combined with a platinum-based chemotherapy, in the treatment of melanoma and sought to identify prognostic factors affecting the response. Methods: Eight patients with metastatic melanoma, with documented progress after at least one previous therapy, received bevacizumab (5 mg/kg intravenously every two weeks) in combination with cisplatin (100 mg/m2 every four weeks) and carboplatin (200 mg/m2 every four weeks). The therapy was continued until renewed disease progression occurred. The response rate, progression-free and overall survival, and toxicity were evaluated. Results: We observed complete remission in two patients (25%) and partial response in an additional four patients. In one patient, the disease remained stable (total disease control rate of 87.5%). Only one patient (12.5%) had progressive disease. The median progression-free survival was 6 months (range 3 - 37 months). The median overall survival time was 15.5 months (range 6 - 77 months). Every patient experienced at least one adverse event of grade 3 - 4, most commonly bleeding associated with severe thrombocytopenia. Conclusion: Our observations indicate that bevacizumab, in combination with cisplatin and carboplatin, may represent an effective treatment option for patients with metastatic melanoma and disease progression.

关键词： Melanoma Cisplatin Carboplatin Bevacizumab Response angiogenesis

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核电用316h不锈钢的蠕变性能评估

稀有金属材料与工程 2021年第2期50卷 531-536页

作者：李昂吴福高蔚张毅核工业理化工程研究院国防科技工业核材料技术创新中心粒子输运与富集技术重点实验室天津300180

通过对核电用316h不锈钢的蠕变数据分析,利用速率温度参数模型拟合得出材料蠕变本构方程。根据相关统计检验方法,确定了材料的蠕变可靠度函数。结合Z’参数的数据分布,分别得出316h不锈钢蠕变应力-RTP参数-可靠度曲线和温度-容许应力-... 详细信息

通过对核电用316h不锈钢的蠕变数据分析,利用速率温度参数模型拟合得出材料蠕变本构方程。根据相关统计检验方法,确定了材料的蠕变可靠度函数。结合Z’参数的数据分布,分别得出316h不锈钢蠕变应力-RTP参数-可靠度曲线和温度-容许应力-可靠度曲线。结合ASME的评价规范,确定了316h不锈钢在550~700℃下的容许应力。结果表明,基于RMB’模型的蠕变本构方程在拟合精度方面优于其他传统模型。实测数据均位于蠕变可靠性模型预测结果的99.7%置信区间内。该模型可以较好地评估316h不锈钢的稳态蠕变性能及容许应力。

关键词： 316h不锈钢蠕变性能速率温度参数模型 Z’参数容许应力

三维石墨烯-碳纳米管磁性气凝胶的制备及其染料吸附性能

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新型炭材料 2022年第2期37卷 424-434页

作者： Zu Rong ang Ing Kong Rachel Shin yie Lee Cin Kong Akesh Babu Kakarla Ai Bao Chai Wei Kong Department of Mechanical Materials and Manufacturing EngineeringUniversity of Nottingham MalaysiaJalan Broga43500 SemenyihSelangorMalaysia School of Computing Engineering and Mathematical SciencesLa Trobe UniversityBendigoVictoria 3552Australia School of Pharmacy University of Nottingham MalaysiaJalan Broga43500 SemenyihSelangorMalaysia Faculty of Engineering Science and TechnologyInfrastructure University Kuala LumpurCorporate BlockUnipark SuriaJalan Ikram-Uniten43000 KajangSelangorMalaysia

将ZnCl_(2)、NiCl_(2)·6h_(2)O、FeCl_(2)·4h_(2)O和FeCl_(3)·6h_(2)O分别加入氧化石墨烯和碳纳米管的悬浮液中,在碱性条件下共沉淀和水中与聚乙烯醇交联后,冷冻干燥制备气凝胶。制备的气凝胶由磁性Ni_(0.5)Zn_(0.5)Fe_(2)O_(4)纳米... 详细信息

将ZnCl_(2)、NiCl_(2)·6h_(2)O、FeCl_(2)·4h_(2)O和FeCl_(3)·6h_(2)O分别加入氧化石墨烯和碳纳米管的悬浮液中,在碱性条件下共沉淀和水中与聚乙烯醇交联后,冷冻干燥制备气凝胶。制备的气凝胶由磁性Ni_(0.5)Zn_(0.5)Fe_(2)O_(4)纳米粒子、氧化石墨烯、碳纳米管和聚乙烯醇组成,不仅具有吸附染料分子的活性位点,而且可通过外加磁场从水中分离。在最佳质量比下,制备的气凝胶对亚甲基蓝具有高的吸附容量(q_(e)=71.03 mg g^(-1))和中等磁性强度(M_(S)=3.519 emu g^(-1))。在染料浓度为0.025 mg mL^(-1)的条件下,气凝胶对亚甲基蓝、甲基橙、结晶紫及其相等质量的混合物的去除效率分别为70.1%、4.2%、8.9%和11.1%。该气凝胶重复使用3次后,再生效率仍超过82%。此外,它对生物体无毒,有望用作处理工业废水的吸附剂。

关键词：磁性气凝胶染料去除石墨烯碳纳米管秀丽隐杆线虫

An esterase-responsive ibuprofen nano-micelle pre-modified embryo derived nucleus pulposus progenitor cells promote the regeneration of intervertebral disc degeneration

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Bioactive Materials 2023年第3期21卷 69-85页

作者： Kai-shun xia Dong-dong Li Cheng-gui Wang Li-wei ying Jing-kai Wang Biao yang Jia-wei Shu xian-peng huang yu-ang Zhang Chao yu xiao-peng Zhou Fang-cai Li Nigel K.h.Slater Jian-bin Tang Qi-xin Chen Cheng-zhen Liang Department of Orthopedics 2nd Affiliated HospitalSchool of MedicineZhejiang UniversityHangzhou310009ZhejiangPR China Orthopedics Research Institute of Zhejiang University Zhejiang UniversityHangzhou310009ZhejiangPR China Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province Hangzhou310009Zhejiang ProvincePR China Clinical Research Center of Motor System Disease of Zhejiang Province Hangzhou310009Zhejiang ProvincePR China Key Laboratory of Biomass Chemical Engineering of Ministry of Education Center for Bionanoengineering Collage of Chemical and Biological EngineeringZhejiang UniversityHangzhou310027ZhejiangPR China The Second Affiliated hospital and yuying Children's hospital of Wenzhou Medical University Wenzhou325000ZhejiangPR China Orthopedic Department Taizhou Hospital Affiliated to Wenzhou Medical UniversityLinhai317099ZhejiangPR China Department of Chemical Engineering and Biotechnology University of CambridgeCambridgeUnited Kingdom

Stem cell-based transplantation is a promising therapeutic approach for intervertebral disc degeneration(IDD).Current limitations of stem cells include with their insufficient cell source,poor proliferation capacity,low nucleus pulposus(NP)-specific differentiation potential,and inability to avoid pyroptosis caused by the acidic IDD microenvironment after *** address these challenges,embryo-derived long-term expandable nucleus pulposus progenitor cells(NPPCs)and esterase-responsive ibuprofen nano-micelles(PEG-PIB)were prepared for synergistic *** this study,we propose a biomaterial pre-modification cell strategy;the PEG-PIB were endocytosed to pre-modify the NPPCs with adaptability in harsh IDD microenvironment through inhibiting *** results indicated that the PEG-PIB pre-modified NPPCs exhibited inhibition of pyroptosis in vitro;their further synergistic transplantation yielded effective functional recovery,histological regeneration,and inhibition of pyroptosis during IDD ***,we offer a novel biomaterial pre-modification cell strategy for synergistic transplantation with promising therapeutic effects in IDD regeneration.

关键词： Intervertebral disc degeneration Nucleus pulposus progenitor cells Esterase-responsive nano micell Biomaterial pre-modification Synergistic transplantation therapy