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Optimizing the Nanostructure of Electrode Materials for Improved Battery Performance

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Optimizing the Nanostructure of Electrode Materials for Impr...

Controlling the reaction kinetics in solution for uniform nanoshells of metal sul?des with sub-nanometer accuracy

2016淮海绿色功能材料论坛暨第三届徐州清洁能源材料论坛

作者： an-min cao Institute of Chemistry Chinese Academy of Sciences

Two representative work will be discussed in this talk: Firstly the construction of uniform coating layer on different cathode materials for an improved battery performance. I’ll report our research progress on the formation of different types of nanoshells with their thickness being precisely-controlled achieving one nanometer accuracy. Different shell materials will be illustrated here including AlO, carbon and AlPO. The cathode materials with an optimized core-shell structure shows improved cyclability and thermal stability benefiting from the delicate surface control. Secondly I’ll introduce our work on the construction of uniform hollow hybrid microspheres for LiTiO through an interesting synthetic process which we identified as the progressive inward crystallization. I’ll also demonstrate the advantage of such a structure control for its application as a promising anode material in lithium ion battery.

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Science Bulletin 2019年第4期64卷 232-235页

作者： Shu-Yi Duan Zi-Xiao Wu Jun-Yu Piao De-Shan Bin Yong-Gang Sun Xi-Jie Lin an-min cao Li-Jun Wan CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and CAS Research/Education Center for Excellence in Molecular Sciences Institute of ChemistryChinese Academy of Sciences (CAS) University of Chinese Academy of Sciences (UCAS) Institute of Chemical Materials China Academy of Engineering Physics

Core-shell nanostructiKes have found broad potentials in a large variety of applications including catalysis, biomedicine, and energy conversion/storage devices [1,2]. The unique structural configuration endows the compos让e a capability to combine advantages of both core and shell materials, and deliver optimized properties through a rational design of the components [3]. Accordingly, numerous research efforts have been directed to the synthesis control of the coating materials to build desired nanoshells. Particularly, silica-based core-shell structures have witnessed enormous success benefiting from the flexible synthesis capability ensured by the Stober process, which provides favorable growth kinetics in solution to build precise configuration of silica nanoshells su让ed for their applications, for example, silica-based nanocapsules for controlled drug delivery [4].

关键词： Core-shell variety applications

Platinum nanoparticles promote breast cancer cell metastasis by disrupting endothelial barrier and inducing intravasation and extravasation

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Nano Research 2022年第8期15卷 7366-7377页

作者： De-Ping Wang Jing Shen Chuan-Yue Qin Yong-Mei Li Li-Juan Gao Jian Zheng Yan-Lin Feng Zi Yan Xin Zhou Ji-min cao Key Laboratory of Cellular Physiology at Shanxi Medical University Ministry of Educationand the Department of PhysiologyShanxi Medical UniversityTaiyuan 030001China Department of Medical Imaging Shanxi Medical UniversityTaiyuan 030001China

Breast cancer is a common malignancy in women with disappointing prognosis especially the triple-negative ***,nanomedicine becomes a promising therapeutic strategy for breast cancer,such as platinum nanoparticles(PtNPs).Despite the promising anticancer effects of PtNPs,the safety of PtNPs remains to be fully ***,a series of cell and animal experiments demonstrate that PtNPs facilitate breast cancer metastasis by damaging the vascular endothelial *** disrupt endothelial cell proliferation,migration and tube-like structure formation,destruct endothelial adhesions junctions and induce endothelial barrier leakiness in vitro most likely by stimulating intracellular reactive oxygen species(ROS)generation and altering the expression and conformation of endothelial junctional proteins,thus promoting intravasation and extravasation of the implanted 4T1 breast cancer cells and leading to cancer metastasis in female BALB/c nude mice in *** addition,smaller PtNPs(5 nm)are more potent than larger PtNPs(70 nm)in exerting the above *** study provides the first evidence that PtNPs can promote breast cancer metastasis by damaging endothelial *** unexpected detrimental effects of PtNPs should be considered in future nanomedicine designs for the treatment of breast cancer.

关键词： platinum nanoparticle endothelium cell junction breast cancer metastasis

Monodomain Liquid Crystals of Two-Dimensional Sheets by Boundary-Free Sheargraphy

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Nano-Micro Letters 2022年第12期14卷 14-26页

作者： min cao Senping Liu Qingli Zhu Ya Wang Jingyu Ma Zeshen Li Dan Chang Enhui Zhu Xin ming Yingjun Liu Yanqiu Jiang Zhen Xu Chao Gao MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringKey Laboratory of Adsorption and Separation Materials and Technologies of Zhejiang ProvinceZhejiang University38 Zheda RoadHangzhou 310027People’s Republic of China Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering TaiyuanPeople’s Republic of China State Key Lab of Chemical Engineering College of Chemical and Biological EngineeringZhejiang University38 Zheda RoadHangzhou 310027People’s Republic of China

Eliminating topological defects to achieve monodomain liquid crystals is highly significant for the fundamental studies of soft matter and building long-range ordered ***,liquid crystals are metastable and sensitive to external stimuli,such as flow,confinement,and electromagnetic fields,which cause their intrinsic polycrystallinity and topological ***,we achieve the monodomain liquid crystals of graphene oxide over 30 cm through boundary-free *** obtained monodomain liquid crystals exhibit large-area uniform alignment of sheets,which has the same optical polarized angle and *** monodomain liquid crystals provide bidirectionally ordered skeletons,which can be applied as lightweight thermal management materials with bidirectionally high thermal and electrical ***,we extend the controllable topology of two-dimensional colloids by introducing singularities and disclinations in monodomain liquid *** structures with defect strength from−2 to+2 were *** work provides a facile methodology to study the structural order of soft matter at a macroscopic level,facilitating the fabrication of metamaterials with tunable and highly anisotropic architectures.

关键词： Monodomain Liquid crystals Graphene oxide Boundary-free sheargraphy Topological structure

Creutzfeldt-Jakob disease presenting as Korsakoff syndrome caused by E196A mutation in PRNP gene:A case report

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World Journal of Clinical Cases 2023年第25期11卷 5982-5987页

作者： Yong-Kang Zhang Jia-Rui Liu Kang-Li Yin Yuan Zong Yu-Zhen Wang Ye-min cao Diagnosis and Treatment Center of Vascular Disease Shanghai TCM-Integrated HospitalShanghai University of Traditional Chinese MedicineShanghai 200082China

BACKGROUND Prion diseases are a group of degenerative nerve diseases that are caused by infectious prion proteins or gene *** humans,prion diseases result from mutations in the prion protein gene(PRNP).Only a limited number of cases involving a specific PRNP mutation at codon 196(E196A)have been *** coexistence of Korsakoff syndrome in patients with Creutzfeldt-Jakob disease(CJD)caused by E196A mutation has not been documented in the existing *** SUMMARY A 61-year-old Chinese man initially presented with Korsakoff syndrome,followed by rapid-onset dementia,visual hallucinations,akinetic mutism,myoclonus,and *** patient had no significant personal or familial medical *** resonance imaging of the brain revealed extensive hyperintense signals in the cortex,while positron emission tomography/computed tomography showed a diffuse reduction in cerebral cortex *** biochemical and microorganism testing of the cerebrospinal fluid(CSF)yielded normal *** for thyroid function,human immunodeficiency virus,syphilis,vitamin B1 and B12 levels,and autoimmune rheumatic disorders were *** and CSF tests for autoimmune encephalitis and autoantibody-associated paraneoplastic syndrome yielded negative results.A test for 14-3-3 protein in the CSF yielded negative ***-genome sequencing revealed a diseasecausing mutation in *** patient succumbed to the illness 11 months after the initial symptom *** Korsakoff syndrome,typically associated with alcohol intoxication,also manifests in CJD *** with CJD along with PRNP E196A mutation may present with Korsakoff syndrome.

关键词： Prion disease Creutzfeldt-Jakob disease Korsakoff syndrome PRNP gene 14-3-3 proteins Case report

中国西南热带季风区石灰岩和非灰岩森林蕨类植物叶片性状的种间和种内适应性

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Journal of Plant Ecology 2023年第6期16卷 146-157页

作者： Kittisack Phoutthavong Masatoshi Katabuchi Akihiro Nakamura Xiao Cheng min cao CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMenglunMengla 666303China University of Chinese Academy of Sciences Beijing 100049China Center of Plant Ecology Core Botanical GardensChinese Academy of SciencesMenglunMengla 666303China Kunming Institute of Botany Chinese Academy of SciencesKunming 650201China

在热带地区,石灰山森林(LFs)和非石灰山森林(NLFs)之间的植物通常表现出不同的分类学和功能型特征。蕨类植物是热带雨林的主要组成成分之一。然而,我们对LFs中分布的蕨类植物的形态和生理特征了解甚少。在本项研究中,我们评估了中国西... 详细信息

在热带地区,石灰山森林(LFs)和非石灰山森林(NLFs)之间的植物通常表现出不同的分类学和功能型特征。蕨类植物是热带雨林的主要组成成分之一。然而,我们对LFs中分布的蕨类植物的形态和生理特征了解甚少。在本项研究中,我们评估了中国西南热带地区LFs和NLFs中的蕨类植物物种在7个叶片功能性状上的差异。我们测量了25种蕨类植物的叶片水分含量、形态特征(包括叶片大小、叶片厚度、气孔长度和气孔密度),以及生理特征(包括气孔导度和光合速率)。研究结果表明,与NLFs相比,LFs中蕨类植物的叶片更厚、更小,气孔密度和气孔导度更低,这可能反映了它们的水分利用策略。然而,当考虑系统发育关系时,这些差异变得不显著了,这表明系统发育保守性影响了LFs和NLFs的性状差异并最终影响了物种组成。在LFs和NLFs中共同出现的一些物种具有一定的种内性状变异,在LFs中气孔密度更低。这些发现表明,只有少数蕨类植物的水分利用策略能够同时适应LFs和NLFs,因此蕨类植物不太可能发生适应性辐射。

关键词：干旱蕨类石灰山森林蕨类植物叶片功能性状西双版纳

Environmental and spatial contributions to seedling and adult tree assembly across tropical,subtropical and subalpine elevational gradients

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Journal of Plant Ecology 2019年第1期12卷 103-112页

作者： Xiaoyang Song min cao Roger L.Kitching Yong Tang Zhenhua Sun Akihiro Nakamura Melinda J.Laidlaw Jie Yang Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesYunnan 666303China University of Chinese Academy of Sciences Beijing 100049China Griffith School of Environment and Environmental Futures Research Institute Griffith UniversityNathanBrisbane QLD 4111Australia Department of Science Information Technology and InnovationQueensland HerbariumToowongQueensland 4066Australia

Aims Quantifying the relative importance of the mechanisms that drive community assembly in forests is a crucial issue in community *** present study aims to understand the ways in which niche-based and spatially based processes influence community assembly in areas in different climatic conditions and how these processes change during the transition from seedling to *** In this study,we investigated how taxonomic and phylogenetic beta diversity in seedling and adult stages of forest trees change across three elevational transects in tropical,subtropical and subalpine for-ests in Southwest China,and the relationships of these changes to the environment and inter-site *** quantified the relative contribution of environmental conditions and spatial distribution to taxonomic and phylogenetic beta diversity of both seedling and adult life stages along each elevational *** also quantified the taxonomic and phylogenetic similarity between seedlings and adult trees along *** Findings Taxonomic and phylogenetic beta diversity of both seedlings and adult trees increased with an increase in both environmental distance and spatial distance in all three *** both taxonomic and phylo-genetic levels,the effects of environmental filtering and spatial dispos-ition varied between life stages and among forest *** similarity between seedlings and adult trees increased with elevation,although the taxonomic similarity did not show clear elevational *** results suggest that the relative contribution of niche-based and space-based processes to taxonomic and phylogenetic assem-blages varies across major plant life stages and among forest *** findings also highlight the importance of ontogenetic stages for fully understanding community assembly of long-lived tree species.

关键词： beta diversity dispersal limitation environmental filtering phylogeny

Ontogenetic trait variation and metacommunity effects influence species relative abundances during tree community assembly

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Plant Diversity 2022年第4期44卷 360-368页

作者： Yun-Yun He Kwansupa Srisombut Ding-Liang Xing Nanthan G.Swenson Mengesha Asefa min cao Xiao-Yang Song Han-Dong Wen Jie Yang CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of SciencesMengla666303YunnanChina University of Chinese Academy of Sciences Beijing100049China School of Ecological and Environmental Sciences East China Normal UniversityShanghai200241China Department of Biological Sciences University of Notre DameNotre DameIN46556USA Center of Plant Ecology Core Botanical GardensChinese Academy of SciencesMengla666303YunnanChina

Predicting species abundance is one of the most fundamental pursuits of *** the information encoded in functional traits and metacommunities provides a new perspective to predict the abundance of species in *** applied a community assembly via trait selection model to predict quadrat-scale species abundances using functional trait variation on ontogenetic stages and metacommunity information for over 490 plant species in a subtropical forest and a lowland tropical forest in Yunnan,*** relative importance of trait-based selection,mass effects,and stochasticity in shaping local species abundances is evaluated using different null *** found both mass effects and trait selection contribute to local abundance *** selection was detectable at all studied spatial scales(0.04e1 ha),with its strength stronger at larger scales and in the subtropical *** contrast,the importance of stochasticity decreased with spatial scale.A significant mass effect of the metacommunity was observed at small spatial *** results indicate that tree community assembly is primarily driven by ontogenetic traits and metacommunity *** findings also demonstrate that including ontogenetic trait variation into predictive frameworks allows ecologists to infer ecological mechanisms operating in community assembly at the individual level.

关键词： Metacommunity Maximum entropy Ontogenetic trait variation Community assembly Trait-selected process

Different environmental factors drive tree species diversity along elevation gradients in three climatic zones in Yunnan,southern China

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Plant Diversity 2021年第6期43卷 433-443页

作者： Xiaoyang Song min cao Jieqiong Li Roger L.Kitching Akihiro Nakamura Melinda J.Laidlaw Yong Tang Zhenhua Sun Wenfu Zhang Jie Yang CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical GardenChinese Academy of Sciences666303YunnanChina Center of Conservation Biology Core Botanical GardensChinese Academy of SciencesMengla666303China School of Environmental&Natural Sciences Griffith UniversityNathan QLD4111BrisbaneAustralia Department of Environment and Science Queensland HerbariumToowongAustralia

Elevational patterns of tree diversity are well studied ***,few studies have examined how seedlings respond to elevational gradients and whether their responses vary across climatic *** this study,we established three elevational transects in tropical,subtropical and subalpine mountain forests in Yunnan Province,southern China,to examine the responses of tree species and their seedlings to elevational *** each transect,we calculated species diversity indices and composition of both adult trees and seedlings at different *** both adult trees and seedlings,we found that species diversity decreased with increasing elevation in both tropical and subalpine *** composition showed significant elevational separation within all three *** species had specific elevational preferences,but abundant tree species that occurred at specific elevations tended to have very limited recruitment in the *** results highlight that the major factors that determine elevational distributions of tree species vary across climatic ***,we found that the contribution of air temperature to tree species composition increased from tropical to subalpine transects,whereas the contribution of soil moisture decreased across these transects.

关键词： Air temperature Climate zones Montane forest Soil moisture Seedling Tree species distribution