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Nano Research 2017年第9期10卷 2923-2933页

作者： Wen Qi Xuan Li Hui Li Weikang Wu Pei Li Ying Wu Chunjiang Kuang Shaoxiong Zhou Xiaolin Li Beijing Key Laboratory of Energy nanomaterials Advance Technology & Materials Co. Ltd. China Iron & Steel Research Institute Group Beijing 10008 I China School of Materials Science and Engineering Tianjin University Tianjin 300072 China Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials Ministry of Education Shandong University Jinan250061 China Department of Stationary Energy Storage Pacific Northwest National Laboratory Richland Washington 99354 USA

Iron oxides have attracted considerable interest as abundant materials for high-capacity Li-ion battery anodes. However, their fast capacity fading owing to poorly controlled reversibility of the conversion reactions greatly hinders their application. Here, a sandwich-structured nanocomposite of N-doped graphene and nearly monodisperse Fe3O4 nanoparticles were developed as high-performance Li-ion battery anode. N-doped graphene serves as a conducting framework for the self-assembled structure and controls Fe3O4 nucleation through the interaction of N dopants, surfactant molecules, and iron precursors. Fe3O4 nanoparticles were well dispersed with a uniform diameter of ~15 nm. The unique sandwich structure enables good electron conductivity and Li-ion accessibility and accommodates a large volume change. Hence, it delivers good cycling reversibility and rate performance with a capacity of ~1,227 mA·h·g–1 and 96.8% capacity retention over 1,000 cycles at a current density of 3 A·g–1. Our work provides an ideal structure design for conversion anodes or other electrode materials requiring a large volume change.

关键词： N-doped graphene iron oxides self-assembly Li-ion battery density functional theory

Synthesis,Crystal Structure and Photoluminescence of a TADF Cuprous Complex

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Chinese Journal of Structural Chemistry 2018年第11期37卷 1749-1755页

作者：甘学敏吴小园余荣民卢灿忠 CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences Graduate University of Chinese Academy of Sciences

A four-coordinate mononuclear cuprous complex oCBP-Cu-Pym(1, oCBP =1,2-bis(diphenylphosphine)-nido-carborane, Pym = 2-methyl-6-(1 H-pyrazol-1-yl)pyridine) was synthe-sized and characterized by elemental analysis, NMR, UV-Vis and X-ray single-crystal structure analysis. It crystallizes in monoclinic space group C2/c with a = 28.4182(8), b =16.2994(4), c = 22.2708(5) ?, β = 127.219(2)°, V = 8214.8(3) ?3, Z = 8, Mr = 766.92, ρcalc = 1.24 g/cm3, F(000) = 3160, μ = 2.30 mm–1, GOOF = 1.063, the final R = 0.0700 and wR = 0.1903 for7158 observed reflections with I > 2σ(I). The Cu(I) ion adopts a highly distorted tetrahedral geometry defined by two nitrogen and two phosphorous atoms. Under UV 365 nm at room temperature, this complex exhibits green emission with maximum emission peak at 516 nm,lifetime 32.4 μs and quantum yield(ф = 0.461) in the solid state. Photophysical investigation suggests that the emission of complex 1 at room temperature was attributed to TADF, which is strongly supported by theoretic calculation.

关键词： Cu(Ⅰ) complex crystal structure TADF DFT calculation

Enhanced performance of a solar cell based on a layer-by-layer self-assembled luminescence down-shifting layer of core–shell quantum dots

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Chinese Physics B 2018年第12期27卷 461-465页

作者： Ni Liu Shu-Xin Li Ying-Chun Ye Yan-Li Yao College of Aeronautical Engineering Binzhou UniversityBinzhou 256603China Anhui Key Laboratory of nanomaterials and Technology and Key Laboratory of Materials Physics Hefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China

In this paper, core–shell quantum dots(QDs) with two polar surface functional groups(ZnSe/ZnS–COOH QDs and ZnSe/ZnS–NH_2 QDs) are synthesized in an aqueous phase. Photoluminescence(PL) and absorption spectra clearly indicate luminescence down-shifting(LDS) properties. On the basis of QDs, surface functional group multilayer LDS films(MLDSs) are fabricated through an electrostatic layer-by-layer(LBL) self-assembly method. The PL intensity increases linearly with the number of bilayers, showing a regular and uniform film growth. When the M-LDS is placed on the surface of a Si-based solar cell as an optical conversion layer for the first time, the external quantum efficiency(EQE) and shortcircuit current density(Jsc) notably increases for the LDS process. The EQE response improves in a wavelength region extending from the UV region to the blue region, and its maximum increase reaches more than 15% between 350 nm and 460 nm.

关键词： two-surface functional group LBL self-assembly LDS

Nitric oxide mediated Staphylococcus aureus pathogenesis and protective role of nanoconjugated vancomycin

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Asian Pacific Journal of Tropical Biomedicine 2011年第2期1卷 102-109页

作者： Subhankari Prasad Chakraborty Santanu Kar Mahapatra Sumanta Kumar Sahu Sourav Chattopadhyay Panchanan Pramanik Somenath Roy Immunology and Microbiology laboratory Department of Human Physiology with Community HealthVidyasagar University nanomaterials Laboratory Department of ChemistryIndian Institute of Technology

Objective:To investigate the relation between fruit seeds,plants residuals and appendicitis. Methods:Among cases that underwent appendectomy,the appendicitis cases having fruit seeds and undigested plant residuals in their etiology were examined ***, histopathological features,age,sex,and parameters of morbidity and mortality were used. Results:Fruit seed was found in one case(0.05%) with presence of pus in appendix lumen, undigested plant residuals in 7 cases(0.35%).It was determined that there were appendix inflammation in 2 of the plant residuals cases,while there were obstruction and lymphoid hyperplasia in the appendix lumen of 5 *** mortality was ***:The ratio of acute appendicitis caused by plants is minimal among all appendectomised patients, but avoidence of eating undigested fruit seeds and chewing plants well may help to prevent appendicitis.

关键词： Staphylococcus aureus Lymphocyte Nanoconjugated vancomycin Antioxidant enzymes TNF-α IL-10 Infection Anti-inflammatory Antioxidative effect Bacteremia Oxidative stress Nitric oxide Inflammatory parameter Pathogenesis

Antioxidative effect of folate-modified chitosan nanoparticles

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Asian Pacific Journal of Tropical Biomedicine 2011年第1期1卷 29-38页

作者： Subhankari Prasad Chakraborty Santanu Kar Mahapatra Sumanta Kumar Sahu Panchanan Pramanik Somenath Roy Immunology and Microbiology Laboratory Department of Human Physiology with Community HealthVidyasagar University nanomaterials Laboratory Department of ChemistryIndian Institute of Technology

Objective:To evaluate the potency of carboxymethyl chitosan-2,2' ethylenedioxy bisethylamine-folate(CMC-EDBE-FA) on tissue injury,antioxidant status and glutathione system in tissue mitochondria and serum against nicotine-induced oxidative stress in ***: CMC-EDBE-FA was prepared on basis of carboxymethyl chitosan tagged with folic acid by covalently linkage through 2,2' ethylenedioxy *** were divided into four groups,i.e.,control,nicotine(1 mg/kg bw/day),CMC-EDBE-FA(1 mg/kg bw/day) and nicotine(1 mg/kg bw/day) and CMC-EDBE-FA(1 mg/kg bw/day) for 7 *** of lipid peroxidation, oxidized glutathione level,antioxidant enzyme status and DNA damage were observed and ***:The significantly increase of lipid peroxidation,oxidized glutathione levels and DNA damage was observed in nicotine treated group as compared with control group;those were significantly reduced in CMC-EDBE-FA supplemented ***,significantly reduced antioxidant status in nicotine treated group was effectively ameliorated by the supplementation of *** CMC-EDBE-FA treated groups showed no significant change as compared with control group;rather than it repairs the tissue damage of nicotine treated ***:These findings suggest that CMC-EDBE-FA is non-toxic and ameliorates nicotine-induced toxicity.

关键词： Carboxymethyl chitosan Nicotine Glutathione Antioxidants Deoxyribonucleic acid fragmentation Antioxidative effect Folate Lipid peroxidation Oxidized

nanomaterials for Drugs Delivery

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Soft Nanoscience Letters 2014年第3期4卷 51-52页

作者： Francisco Márquez Carmen Morant Department of Applied Physics Universidad Autónoma de Madrid Madrid Spain nanomaterials Research group School of Science and Technology University of Turabo Gurabo USA

As expected for years, nanotechnology has revolutionized engineering, biology, chemistry, physics and medicine of today. These disciplines are evolving thanks to the ongoing development of new materials and applications. Nanomedicine, as application of nanotechnology in the field of health care, has undergone unprecedented development. Some of these changes have real applications as, for example, the use of nanoparticles in MRI imaging, in hyperthermia, in immunotherapy, or to improve the bioavailability of drugs, among others [1]-[3]. When a drug is administered to a patient, the blood distributes it throughout the body. In the case of very localized diseases (i.e. tumors), only a small fraction of the drug reaches the target. Chemotherapy is one of the most aggressive treatment options used in some types of cancer, and is usually administered intravenously. In this type of therapy, the drug circulates throughout the body, reaching and destroying healthy and cancerous tissues, producing side effects throughout the body, sometimes with serious consequences for the health of the patient (nephrotoxicity, cardiotoxicity, peripheral neuropathy, anemia, etc.). Among the many applications of nanotechnology, the fabrication of nanostructures capable of safely transporting these drugs is seen as a strategy for reducing these side effects. Nanoparticles are able to carry and release the drug in the right place and with the required dose, greatly reducing the problems associated with direct treatment with these drugs. In recent years, there have been continuous improvements in the design and development of new tailor-made drug delivery systems [4], including hollow magnetic nanoparticles, liposomal structures, dendrimers, nanoporous silicon, etc. These structures can be obtained with different molecular weights (in the case of polymers), structures, shapes, and even with the appropriate functional groups for interaction at the desired positions. However, a great effort is sti

关键词： nanomaterials Drug Delivery

氢氧化铝纳米片:结构依赖性癌症化疗药物的储运（英文）

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无机材料学报 2020年第2期35卷 250-256页

作者： LI Xia SHENASHEN Mohamed A MEKAWY Moataz TANIGUCHI Akiyoshi EI-SAFTY Sherif A Research Center for Functional Materials National Institute for Materials ScienceIbaraki 305-0047Japan Cellular Functional nanomaterials group Research Center for Functional MaterialsNational Institute for Materials ScienceIbaraki 305-0044Japan Engineering and Advanced Manufacturing University of SunderlandSunderlandUnited Kingdom

Alum has an excellent safety record and is the only licensed inorganic adjuvant for human ***,the exploration of alum nanosheets as chemotherapy drug delivery system,especially the clarification about the relationship between structures and drug loading properties,is totally ***,aluminum hydroxides(AlOOH)nanosheets with tunable specific surface area and pore size were synthesized by adjusting the synthesis time in the presence of triblock *** obtained materials exhibited the highest surface area about 470 m2/*** structure-dependent chemotherapy drug loading capability for AlOOH nanosheets was observed:the higher specific surface area and pore size are,the higher amount of chemotherapy drug is *** nanosheets loaded with doxorubicin showed a pH-dependent sustained release behavior with quick release in low pH about 5 and slow release in pH around ***-loaded AlOOH nanosheets exhibited much higher cancer cellular uptake efficiency than that in free form by flow ***,doxorubicin-loaded AlOOH nanosheets with high specific surface area showed an increased cellular uptake efficiency and enhanced ratios of apoptosis and necrosis,compared with those showing low specific surface ***,AlOOH nanosheets are promising materials as chemotherapy drug delivery system.

关键词： aluminum hydroxide nanosheet cancer chemotherapy storage drug delivery

Nanomaterial-based delivery vehicles for therapeutic cancer vaccine development

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Cancer Biology & Medicine 2021年第2期18卷 352-371页

作者： Jie Liang Xiao Zhao CAS Key Laboratory for Biomedical Effects of nanomaterials and Nanosafety&CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology of ChinaBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Nanomaterial-based delivery vehicles such as lipid-based,polymer-based,inorganics-based,and bio-inspired vehicles often carry distinct and attractive advantages in the development of therapeutic cancer *** on various delivery vehicles,specifically designed nanomaterials-based vaccines are highly advantageous in boosting therapeutic and prophylactic antitumor ***,therapeutic vaccines featuring unique properties have made major contributions to the enhancement of antigen immunogenicity,encapsulation efficiency,biocompatibility,and stability,as well as promoting antigen cross-presentation and specific CD8^(+)T cell ***,for clinical applications,tumor-associated antigen-derived vaccines could be an obstacle,involving immune tolerance and deficiency of tumor specificities,in achieving maximum therapeutic ***,when using bioinformatics predictions with emerging innovations of in silico tools,neoantigen-based therapeutic vaccines might become potent personalized vaccines for tumor *** this review,we summarize the development of preclinical therapeutic cancer vaccines and the advancements of nanomaterial-based delivery vehicles for cancer immunotherapies,which provide the basis for a personalized vaccine delivery ***,we review the existing challenges and future perspectives of nanomaterial-based personalized vaccines for novel tumor immunotherapies.

关键词： Nanomaterial-based delivery vehicles bioinformatic prediction neoantigen personalized vaccines tumor immunotherapy

Synthesis,Crystal Structure and Photoluminescence of a Dinulear Copper Complex

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Chinese Journal of Structural Chemistry 2018年第10期37卷 1645-1650页

作者： LI Xiao-Ning WU Xiao-Yuan ZHAO Wan-Wan YANG Ming-Xue YU Rong-Min LU Can-Zhong CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of Sciences College of Chemistry and Materials Science Fujian Normal University

A binuclear cuprous complex [Cu（μ-I）（NPPh）]2（1,NPPh = 1-（2-（diphenylphosphanyl）phenyl）-3-phenyl-4,5-dihydro-1 H-pyrazole） was synthesized and characterized by elemental analysis,NMR and X-ray single-crystal structure *** crystallizes in triclinic space group P2_1/n with a = 10.7520（3）,b = 18.1860（5）,c = 11.8487（3）？,β = 91.864（2）,V = 2315.61（11）？~3,Z = 4,Mr = 594.87,Dc = 1.706 g/cm^3,F（000） = 1176.0,μ = 12.582 mm（-1）,GOOF = 1.048,the final R = 0.0289 and wR = 0.0670 for 3787 observed reflections with I 〉 2σ（I）.The Cu atoms in the complex are four-coordinated and adopt distorted tetrahedral coordination *** the solid state,the complex exhibits greenish yellow photoluminescence with a peak maximum of 533 nm,a decay time of 34 μs,and a photoluminescence quantum yield of 63.6% at room temperature,respectively.

关键词： cuprous complex crystal structure emissive property

Pre-fixing defects in carbon framework for revealing the active sites of oxygen reduction reaction at nitrogen-doped carbon nanotubes

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Journal of Energy Chemistry 2021年第12期30卷 521-527,I0012页

作者： Bing Huang Kun Hou Yang Liu Rongtao Hu Lunhui Guan CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002 FujianChina University of Chinese Academy of Sciences Beijing 100049China

Nitrogen-doped carbon-based materials are promising non-platinum group metal electrocatalysts for the oxygen reduction reaction(ORR).Understanding their ORR active sites is vital for the rational design and development of nitrogen-doped carbon-based electrocatalysts with enhanced catalytic efficiency and ***,the conclusive analysis of the ORR mechanism of nitrogen-doped carbon-based electrocatalysts remains a grand challenge because the catalysts have a complex inhomogeneous ***,we elucidate this problem using nitrogen-doped carbon nanotubes framework catalysts with fixed defect concentrations prepared by pre-thermal treatment at a low *** generation of defects under high-temperature treatment was effectively suppressed to enable a simple model for ORR mechanism study.A correlation between ORR pathways and the different nitrogen species in the nitrogen-doped carbon catalysts was revealed through a combination of structural and electrochemical properties ***,our results also demonstrate the importance of defects for *** believe that the results will provide instructive guidance for designing and developing novel carbon nanomaterials for ORR.

关键词： Electrocatalysts Oxygen reduction reaction Defects Nitrogen-doped carbon nanotube