检索结果-南通市图书馆

Journal of Rare Earths 2015年第2期33卷 160-167页

作者： M.Bradha T.Vijayaraghavan S.P.Suriyaraj R.Selvakumar Anuradha M.Ashok nanotech research facility PSG Institute of Advanced StudiesCoimbatore-641 004 India Nanobiotechnology Laboratory PSG Institute of Advanced StudiesCoimbatore-641 004 India

A-site substituted La0.8A0.2TiO3.5–δ（A=Ba, Sr, Ca） nano perovskites were prepared by sol-gel method and characterized using thermogravimetry/differential thermal analysis（TGA/DTA）, X-ray diffraction（XRD）, ultraviolet-visible（UV-Vis） spectroscopy and transmission electron microscopy（TEM）. XRD analysis showed that the La0.8A0.2TiO3.5–δ（A=Ba, Sr, Ca） nano perovskites derived after calcination at 800 oC were in single phase with orthorhombic structure. The particle size of all nano perovskites was found to be ~20 nm. The synthesized nano perovskites were tested for the photocatalytic decomposition of an azo dye, Congo red. The sequential behavior of La0.8A0.2TiO3.5–δ（A=Ba, Sr, Ca） nanoperovskites for photocatalytic decomposition of congo red in aqueous solution by visible light at room temperature was studied at various time intervals and the efficiency of degradation of the nanoperovskites was compared. Among all the A-site substituted La0.8A0.2TiO3.5–δ（A=Ba, Sr, Ca） nano perovskites, Ba substituted compound showed the highest dye degradation.

关键词： nano perovskite oxidation photocatalyst congo red dye degradation rare earths

Mn^(2+)-doped ZrO_(2)@PDA nanocomposite for multimodal imaging-guided chemo-photothermal combination therapy

在线全文

学校读者我要写书评

暂无评论

Chinese Chemical Letters 2021年第8期32卷 2405-2410页

作者： Ning Chen Wenhui Fu Jie Zhou Linqiang Mei Jimin Yang Yang Tian Qiang Wang Wenyan Yin Laboratory for Micro-sized Functional Materials Department of Chemistry and College of Elementary EducationCapital Normal UniversityBeijing 100048China CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety CAS-HKU Joint Laboratory of Metallomics on Health and EnvironmentBeijing Metallomics FacilityNational Consortium for Excellence in MetallomicsInstitute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China School of Chemistry and Chemical Engineering Linyi UniversityLinyi 276005China Laboratory of Nano-Bio Interface Suzhou Institute of NanoTech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China

Developing low toxicity and multifunctional theranostic nanoplatform is the key for precise cancer diagnosis and ***,an inorganic-organic hybrid nanocomposite is designed by modifying zirconium dioxide(ZrO_(2)) with polydopamine(PDA) followed by doping Mn^(2+) ions and functionalizing with Tween 20(Tween-ZrO_(2)@PDA-Mn2+) for multimodal imaging and chemo-photothermal combination *** as-prepared nanocomposite exhibits good biocompatibility in vitro and in ***,it can be employed as a multifunctional platform not only for computed tomography(CT)imaging and T1-weighted magnetic resonance(MR) imaging,but also for efficient chemotherapeutic drug doxorubicin hydrochloride(DOX) ***,because of the pronounced photothermal conversion performance and controllable DOX release ability triggered by the near-infrared(NIR)irradiation and acidic pH,the synergistic effect between photothermal the rapy and chemotherapy results in an enhanced cancer treatment efficacy in *** work provides a high-performance inorganicorganic hybrid nanotheranostic platform for chemo-photothermal cancer therapy guided by CT and MR imaging.

关键词： ZrO_(2)nanoparticles Polydopamine Multimodal imaging Chemo-photothermal therapy

Honeycomb-Like Hydrogel Microspheres for 3D Bulk Construction of Tumor Models

在线全文

学校读者我要写书评

暂无评论

research 2022年第2期2022卷 245-258页

作者： Jiachen He Chichi Chen Liang Chen Ruoyu Cheng Jie Sun Xingzhi Liu Lin Wang Can Zhu Sihan Hu Yuan Xue Jian Lu Huiling Yang Wenguo Cui Qin Shi Department of Orthopedics The First ffliated Hospital of Soochow UrniversilyOrthopedic Institute of Soochow University899 Pinghai RoadSuzhouJiangsu 215031China National Clinical research Center for Hematologic Diseases The First Afliated Hospital of Soochow University899 Pinghai RoadSuzhouJiangsu 215031China Department of Orthopaedis Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijjin HospitalShanghai liao Tong University School of Medicine197 Ruijini 2nd RoadSharghai 200025China School of nanotech and Nano-Bionics Universily of Science and Techmology of China388 Ruoshui RoadSuzhouJiangsu 215123 China Department of Orthopedics Wiuxi Ninth People's Hospital Afiliated to Soochow UniversityWiuciJiangs 214026China

A two-dimensional(2D)cell culture-based model is widely applied to study tumorigenic mechanisms and drug ***,it cannot authentically simulate the threedimensional(3D)microenvironment of solid tumors and provide reliable and predictable data in response to in vivo,thus leading to the research ilusionis and failure of drug *** this study,honeycomb-like gelatin methacryloyl(GelMA)hydrogel microspheres are developed by synchronous photocrosslinking microluidic technique to construct a 3D model of *** in vitro study shows that ostcosarcoma cells(K7M2)culured in 3D GelMA microspheres have stronger tumorous stemness。proliferation and migration abilitics,more osteoclastogenetic ability,and reistance to chemotherapeutic drugs(DOX)than that of cells in 2D *** imporantly,the 3D-cultured K7M2 cells show more tumorigenicity in immunologically sound mice,characterized by shorter tumorigenesis time,larger tumor volumc,severe bone destruction,and higher *** conclusion,honeycomb like porous microsphere scaffolds are constructed with uniform structure by micofluidic technology to massively produce tumor cells with original *** microspheres could recapitulate the physiology microenvironment of *** ell-cell and cell-extracellular matrix interactions,and thus provide an efective and convenient strategy for tumor pathogenesis and drug screening research.

关键词： drugs maintain shorter

手性晶体CoSi中拓扑费米弧的电荷不稳定性

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science Bulletin 2023年第2期68卷 165-172,M0003页

作者：饶志成胡全欣田尚杰曲青陈聪润高顺业袁震宇唐岑瑶樊文辉黄杰瑞黄耀波王利张露李坊森王克东杨槐馨翁红明钱天徐金朋蒋坤雷和畅孙煜杰丁洪 Beijing National Laboratory for Condensed Matter Physics and Institute of Physics Chinese Academy of SciencesBeijing 100190China Department of Physics Southern University of Science and TechnologyShenzhen 518055China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China School of Materials Science and Engineering Anhui UniversityHefei 230601China Laboratory for Neutron Scattering and Beijing Key Laboratory of Optoelectronic Functional Materials MicroNano DevicesDepartment of PhysicsRenmin University of ChinaBeijing 100872China Shanghai Synchrotron Radiation facility Shanghai Advanced Research InstituteChinese Academy of SciencesShanghai 201204China Vacuum Interconnected nanotech Workstation(Nano-X) Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of SciencesSuzhou 215123China Songshan Lake Materials Laboratory Dongguan 523808China CAS Center for Excellence in Topological Quantum Computation University of Chinese Academy of SciencesBeijing 100190China

拓扑边界态出现在拓扑非平庸态和平庸态之间的边界上,通常是无间隙的或被称为金属态.例如,拓扑绝缘体的表面态是无间隙的狄拉克态.这些金属拓扑边界态往往可以被近自由费米子很好的描述.如果拓扑边界态具有显著的电子-电子相互作用的行... 详细信息

拓扑边界态出现在拓扑非平庸态和平庸态之间的边界上,通常是无间隙的或被称为金属态.例如,拓扑绝缘体的表面态是无间隙的狄拉克态.这些金属拓扑边界态往往可以被近自由费米子很好的描述.如果拓扑边界态具有显著的电子-电子相互作用的行为,无间隙的边界态会转变为有间隙的有序态,例如密度波态或超导态,这在理论上是非常有趣的,但目前还缺少相关的实验证据.本文报道了在Co Si(001)表面观察到了电子-电子相互作用驱动的、在拓扑边界态上形成的非公度电荷密度波(CDW). CDW的波矢随温度的变化而变化,这与拓扑表面费米弧随温度的演化相吻合. CDW相的取向由费米弧的手性决定,这暗示了CDW与费米弧之间存在直接的联系.该发现将促进在拓扑材料边界上寻找更多相互作用驱动的有序态,例如超导和磁性.

关键词：电荷密度波有序态拓扑绝缘体超导态狄拉克金属态表面态

Modulation of electronic state in copper-intercalated 1T-TaS_(2)

在线全文

学校读者我要写书评

暂无评论

Nano research 2022年第5期15卷 4327-4333页

作者： Wenhao Zhang Degong Ding Jingjing Gao Kunliang Bu Zongxiu Wu Li Wang Fangsen Li Wei Wang Xuan Luo Wenjian Lu Chuanhong Jin Yuping Sun Yi Yin Zhejiang Province Key Laboratory of Quantum Technology and Device Department of PhysicsZhejiang UniversityHangzhou 310027China State Key Laboratory of Silicon Materials School of Materials Science and EngineeringZhejiang UniversityHangzhou 310027China Key Laboratory of Materials Physics Institute of Solid State PhysicsHFIPSChinese Academy of SciencesHefei 230031China Vacuum Interconnected nanotech Workstation(Nano-X) Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)Suzhou 215123China High Magnetic Field Laboratory HFIPSChinese Academy of SciencesHefei 230031China Collaborative Innovation Center of Advanced Microstructures Nanjing UniversityNanjing 210093China

Intercalation is an effective method to modify physical properties and induce novel electronic states of transition metal dichalcogenide(TMD)***,it is difficult to reveal the microscopic electronic state evolution in the intercalated *** we successfully synthesize the copper-intercalated 1T-TaS_(2) and characterize the structural and electronic modification combining resistivity measurements,atomic-resolution scanning transmission electron microscopy(ADF-STEM),and scanning tunneling microscopy(STM).The intercalated Cu atom is determined to be directly below the Ta atom and suppresses the commensurate charge density wave(CCDW)*** specific electronic modulations are discovered in the near-commensurate(NC)CDW phase:the electron doping state near the defective star of Davids(SDs)in metallic domains and the spatial evolution of the Mott gap in insulating *** modulations reveal that intercalated Cu atoms act as a medium to enhance the interaction between intralayer SDs,in addition to the general charge transfer *** also solidifies the Mott foundation of the insulating gap in pristine *** intriguing electronic evolution in Cu-intercalated 1T-TaS_(2) will motivate further exploration of novel electronic states in the intercalated TMD materials.

关键词： intercalation scanning tunneling microscopy Mott insulator charge transfer electron doping

Large-area(64 × 64 array) inkjet-printed high-performance metal oxide bilayer heterojunction thin film transistors and n-metal-oxide-semiconductor(NMOS) inverters

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2021年第22期81卷 26-35页

作者： Shuangshuang Shao Kun Liang Xinxing Li Jinfeng Zhang Chuan Liu Zheng Cui Jianwen Zhao Printable Electronics research Center Suzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou215123China School of Engineering Westlake UniversityHangzhou310024China Zhejiang University Hangzhou310027China The Key Laboratory of Optoelectronic Materials and Technologies and the Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou510275China

It is a big challenge to construct large-scale,high-resolution and high-performance inkjet-printed metal oxide thin film transistor(TFT)arrays with independent gates for the new printed ***,a self-confined inkjet printing technology has been developed to construct large-area(64×64 array),high-resolution and high-performance metal oxide bilayer(In_(2)O_(3)/IGZO)heterojunction TFTs with independent bottom gates on transparent glass *** printing In_(2)O_(3) dot arrays with the diameters from 55 to 70μm and the thickness of~10 nm were firstly deposited on UV/ozone treated AlO_(x) dielectric layers,and then IGZO dots were selectively printed on the top of In_(2)O_(3) dots by self-confined technology to form In_(2)O_(3)/IGZO heterojunction *** the inkjet-printed IO layers treated by UV/ozone for more than 30 min or oxygen plasma for 5 min prior to print IGZO thin films,the mobility of the resulting printed In_(2)O_(3)/IGZO heterojunction TFTs are correspondingly enhanced to be 18.80 and 28.44 cm^(2) V^(-1) s^(-1) with excellent on/off ratios(>10^(8))and negligible ***,the printed N-Metal-Oxide-Semiconductor(NMOS)inverter consisted of an In_(2)O_(3)/IGZO TFT and an IGZO TFT has been demonstrated,which show excellent performance with the voltage gain up to *** strategy demonstrated here can be considered as general approaches to realize a new generation of high-performance printed logic gates,circuits and display driving circuits.

关键词： Inkjet printing Heterojunction channel 64×64 arrays High mobility NMOS inverter