检索结果-内蒙古大学图书馆

A strategy for accurate detection of glucose in human serum and whole blood based on an upconversion nanoparticles-polydopamine nanosystem

引用

Nano Research 2018年第6期11卷 3164-3174页

作者： Yan Liu Datao Tu Wei Zheng Lianyu Lu Wenwu You Shanyong Zhou Ping Huang Renfu Li Xueyuan Chen CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China University of Chinese Academy of Sciences Beijing 100049 China

The accurate detection of blood glucose is of critical importance in the diagnosis and management of diabetes and its complications. Herein, we report a novel strategy based on an upconversion nanoparticles-polydopamine （UCNPs-PDA） nanosystem for the accurate detection of glucose in human serum and whole blood through a simple blending of test samples with ligand-free UCNPs, dopamine, and glucose oxidase （GOx）. Owing to the high affinity of lanthanide ions exposed on the surface of ligand-free UCNPs, dopamine monomers could spontaneously attach to the UCNPs and further polymerize to form a PDA shell resulting in a remarkable upconversion luminescence （UCL） quenching （97.4%） of UCNPs under 980-nm excitation. Such UCL quenching can be effectively inhibited by H2O2 produced from the GOx/glucose enzymatic reaction, thus enabling the detection of H2O2 or glucose based on the UCL quenching/inhibition bioassay. Owing to the highly sensitive UCL response and background-free interference of the UCNPs-PDA nanosystem, we achieved a sensitive, selective, and high-throughput bioassay for glucose in human serum and whole blood, thereby revealing the great potential of the UCNPs-PDA nanosystem for the accurate detection of blood glucose or other HRO2-generated biomolecules in clinical bioassays.

关键词： upconversion nanoparficles polydopamine F6rster resonance energy transfer blood glucose bioassay

来源：评论

学校读者我要写书评

暂无评论

Direct Z-Scheme Heterostructure of In-Situ Planted Zno Nanorods on G-C3n4 Thin Sheets Sprayed on Tio2 Layer: A Strategy for Ternary-Photoanode Engineering Towards Enhanced Photoelectrochemical Water Splitting

SSRN

引用

SSRN 2023年

作者： Hung, Chen-Hsiung Aboubakr, Ahmed Esmail A. Hussien, Mahmoud Kamal Sabbah, Amr Hassan, Ahmed E. Elsayed, Mohamed Hammad Wen, Zhenhai Chen, Kuei-Hsien Sustainable Chemical Science and Technology Taiwan International Graduate Program Taiwan Department of Applied Chemistry National Yang Ming Chiao Tung University Hsinchu30010 Taiwan Institute of Chemistry Academia Sinica 128 Sec 2 Academia Rd. Nankang Taipei11529 Taiwan Department of Chemistry Faculty of Science Assiut University Assiut71516 Egypt Institute of Atomic and Molecular Sciences Academia Sinica Taipei10617 Taiwan Center for Condensed Matter Sciences National Taiwan University Taipei10617 Taiwan CAS Key Laboratory of Design and Assembly of Functional Nanostructures And Fujian Provincial Key Laboratory of Materials and Techniques Toward Hydrogen Energy Fujian Institute of Research on The Structure of Matter Chinese Academy of Sciences Fujian Fuzhou350002 China University of Chinese Academy of Sciences Beijing100049 China Department of Chemistry Faculty of Science Al-Azhar University Nasr City Cairo11884 Egypt

A novel approach to enhance the separation and transfer of charge carriers of photoanode for photoelectrochemical water splitting has developed. We improved the procedures for in-situ implantation of ZnO on g-C3N4, resulting in strong chemical adhesion between the interface of ZnO and g-C3N4. Our airbrushing procedure for fabricating the g-C3N4/ZnO composite on TiO2 also enhanced the charge collection efficiency, enabling us to construct a high performance photoanode. The Z-scheme type charge migration route was verified by EPR spectroscopy through trapping the radicals generated by charges and holes. PEC-WS measurements showed that TiO2/g-C3N4/ZnO heterostructure improved the produced photocurrent by about 160-, 40-, 20-, 8-, 2-, and 2-fold, relative to pristine g-C3N4, pristine ZnO nanorods, ZnO/g-C3N4 composite, pristine TiO2, TiO2/ZnO, and TiO2/g-C3N4, respectively, versus reversible hydrogen electrode (RHE) at 1.23 V. © 2023, The Authors. All rights reserved.

关键词： Zinc oxide

来源：评论

学校读者我要写书评

暂无评论

Molten-Salt-Assisted Synthesis of Bismuth Nanosheets for Long-term Continuous Electrocatalytic Conversion of CO2 to Formate

引用

Angewandte Chemie 2020年第45期132卷

作者： Yi L. Chen J. Shao P. Huang J. Peng X. Li J. Wang G. Zhang C. Wen Z. CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China University of Chinese Academy of Science Beijing 100049 China

Two-dimensional (2D) monometallic pnictogens (antimony or Sb, and bismuth or Bi) nanosheets demonstrate potential in a variety of fields, including quantum devices, catalysis, biomedicine and energy, because of their unique physical, chemical, electronic and optical properties. However, the development of general and high-efficiency preparative routes toward high-quality pnictogen nanosheets is challenging. A general method involving a molten-salt-assisted aluminothermic reduction process is reported for the synthesis of Sb and Bi nanosheets in high yields (>90 %). Electrocatalytic CO2 reduction was investigated on the Bi nanosheets, and high catalytic selectively to formate was demonstrated with a considerable current density at a low overpotential and an impressive stability. Bi nanosheets continuously convert CO2 into formate in a flow cell operating for one month, with a yield rate of 787.5 mmol cm−2 h−1. Theoretical results suggest that the edge sites of Bi are far more active than the terrace sites. © 2020 Wiley-VCH GmbH

关键词： bismuth nanosheets electrocatalysis formate long-term operation selectivity

来源：评论

学校读者我要写书评

暂无评论

Corrigendum to ’Ultrafast-Kinetics, Ultralong-Cycle-Life, Bifunctional Inorganic Open-Framework for Potassium-Ion Batteries’

引用

Energy Storage Materials 2022年 45卷 1238-1238页

作者： Jingze Bao Wenzhuo Deng Jiandongyong Liu Chuan-Fu Sun CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 P.R. China University of Chinese Academy of Sciences Beijing 100039 P.R. China

来源：评论

学校读者我要写书评

暂无评论

Pseudo-2D Layered Organic-Inorganic Manganese Bromide with a Near-Unity Photoluminescence Quantum Yield for White Light-Emitting Diode and X-Ray Scintillator

引用

Angewandte Chemie 2023年第45期135卷

作者： Wei Zhang Ping Sui Prof. Wei Zheng Prof. Lingyun Li Prof. Shuaihua Wang Prof. Ping Huang Wen Zhang Qi Zhang Prof. Yan Yu Prof. Xueyuan Chen Key Laboratory of Advanced Materials Technologies and International (Hongkong Macao and Taiwan) Joint Laboratory on Advanced Materials Technologies College of Materials Science and Engineering Fuzhou University 350108 Fuzhou Fujian China CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences 350002 Fuzhou Fujian China Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China 350108 Fuzhou Fujian China

Eco-friendly lead-free organic–inorganic manganese halides (OIMHs) have attracted considerable attention in various optoelectronic applications because of their superior optical properties and flexible solution processibility. Herein, we report a novel pseudo-2D layered OIMH (MTP) 2 MnBr 4 (MTP: methyltriphenylphosphonium), which exhibits intense green emission under UV/blue or X-ray excitation, with a near-unity photoluminescence quantum yield, high resistance to thermal quenching (I 150 °C =84.1 %) and good photochemical stability. These features enable (MTP) 2 MnBr 4 as an efficient green phosphor for blue-converted white light-emitting diodes, demonstrating a commercial-level luminous efficiency of 101 lm W −1 and a wide color gamut of 116 % NTSC. Moreover, these (MTP) 2 MnBr 4 crystals showcase outstanding X-ray scintillation properties, delivering a light yield of 67000 photon MeV −1 , a detection limit of 82.4 nGy s −1 , and a competitive spatial resolution of 6.2 lp mm −1 for X-ray imaging. This work presents a new avenue for the exploration of eco-friendly luminescent OIMHs towards multifunctional light-emitting applications.

关键词： Manganese Halide Photoluminescence Scintillator WLED X-Ray Imaging

来源：评论

学校读者我要写书评

暂无评论

Ultrasensitive detection of cancer biomarker microRNA by amplification of fluorescence of lanthanide nanoprobes

引用

Nano Research 2018年第1期11卷 264-273页

作者： Lianyu Lu Datao Tu Yan Liu Shanyong Zhou Wei Zheng Xueyuan Chen College of Chemistry Fuzhou University Fuzhou 350116 China CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 China

Sensitive detection of cancer biomarker microRNAs （miRNAs） is of vital importance for cancer diagnosis and treatment. Nonetheless, the detection sensitivity in the existing miRNA bioassays is severely limited by the structural characteristics of miRNA （including small length and high sequence homology） because most of these methods are based on target amplification. Herein, we report a novel approach to sensitive and specific detection of low-abundance miRNA via a unique strategy of nanoprobe dissolution-enhanced fluorescence amplification, in which a capture probe featuring molecular beacon structure is designed. By means of this strategy, miRNA-21 was detected in a linear range from 10 fM to 100 pM with a detection limit as low as 1.38 fM. High selectivity of the newly developed biosensor was demonstrated by the good discrimination against a target with a single-base mismatch. Furthermore, this assay was used for the detection of miRNA-21 added into fetal bovine serum samples with the recovery in the range of 90.2%--108% and coefficients of variation below 10.1%, indicating its promising applications to RNA immunoassays and early cancer diagnosis.

关键词： microRNA lanthanide nanoparticles fluorescence amplification cancer biomarker molecular beacon

来源：评论

学校读者我要写书评

暂无评论

Effective reduction of matrix thermal conductivity through composite softening

引用

Newton 2025年第1期1卷

作者： Jiajing Huang James Patrick Male Yandong Sun Ramya Gurunathan Pochung Huang Gerald Jeffrey Snyder Yue Lin CAS Key Laboratory of Design and Assembly of Functional Nanostructures and State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou Fujian 350002 China Fujian Science & Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou Fujian 350108 China University of Chinese Academy of Sciences Beijing 100049 China Department of Materials Science and Engineering Northwestern University Evanston IL 60208 USA Materials Science and Engineering Division National Institute of Standards and Technology Gaithersburg 20899 MD USA

Conventional wisdom suggests that incorporating high-thermal-conductivity nanomaterials, such as graphene and carbon nanotubes, can enhance the thermal conductivity of composite matrices. However, our study on graphene nanoplatelets (GNPs) within a lead telluride (PbTe) matrix, along with an extensive review of 18 composites, reveals that such additions can lead to a significant decrease in thermal conductivity. This reduction is attributed to a decrease in phonon velocity, as seen by measuring the sound velocity v s , which strongly impacts lattice thermal conductivity ( κ L ). For instance, a volume fraction of just 1.47% GNPs results in an 11.1% reduction in PbTe’s v s , cutting κ L by 29.7%. We introduce a dimensionless parameter, χ , derived from the contrasts in Young’s modulus and density between the composite constituents. This parameter allows for the prediction of the degree to which v s and, consequently, κ L are reduced, based on the mechanical properties of the composite components. Alongside interfacial phonon scattering, this research pivots the focus toward composite softening as a critical factor in manipulating thermal conductivity.

关键词： structure-properties relationship composites phenomenological model thermal conductivity graphene thermoelectrics

来源：评论

学校读者我要写书评

暂无评论

Cyanide-based Covalent Organic Frameworks for Enhanced Overall Photocatalytic Hydrogen Peroxide Production

引用

Angewandte Chemie 2024年第19期136卷

作者： Enbo Zhou Futong Wang Xiang Zhang Yangdan Hui Prof. Yaobing Wang CAS Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Provincial Key Laboratory of Nanomaterials State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou 350002 Fujian P. R. China University of Chinese Academy of Sciences Beijing 100049 P. R. China Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350108 Fujian P. R. China Fuzhou University Fuzhou 350108 Fujian P. R. China

Photocatalytic oxygen reduction to produce hydrogen peroxide (H 2 O 2 ) is a promising route to providing oxidants for various industrial applications. However, the lack of well-designed photocatalysts for efficient overall H 2 O 2 production in pure water has impeded ongoing research and practical thrusts. Here we present a cyanide-based covalent organic framework (TBTN-COFs) combining 2,4,6-trimethylbenzene-1,3,5-tricarbonitrile (TBTN) and benzotrithiophene-2,5,8-tricarbaldehyde (BTT) building blocks with water-affinity and charge-separation. The ultrafast intramolecular electron transfer (<500 fs) and prolonged excited state lifetime (748 ps) can be realized by TBTN-COF, resulting in a hole accumulated BTT and electron-rich TBTN building block. Under one sun, the 11013 μmol h −1 g −1 yield rate of H 2 O 2 can be achieved without any sacrificial agent, outperforming most previous reports. Furthermore, the DFT calculation and in situ DRIFTS spectrums suggesting a Yeager-type absorption of *O 2 ⋅ − intermediate in the cyanide active site, which prohibits the formation of superoxide radical and revealing a favored H 2 O 2 production pathway.

关键词： Covalent organic framework Photocatalytic H2O2 production Oxygen reduction reaction Charge-separation Intramolecular electron transfer

来源：评论

学校读者我要写书评

暂无评论

Synthesis and Characterization of a Novel Coordination Complex Based on Fluorescein

引用

Chinese Journal of Structural Chemistry 2018年第1期37卷 113-118页

作者：张冠华吴小园王洒洒蒋晓瑜卢灿忠 Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences Graduate University of Chinese Academy of Sciences Fujian University of Technology

A novel coordination complex,{[Cd）2（C（20）H（10）O5）2（H2O）4]·10H2O}n,has been synthesized based on fluorescein（2-（6-hydroxy-3-oxo-3 H-xanthen-9-yl） benzoic acid） and systematically characterized by elemental analysis,infrared（IR） spectrum,thermo gravimetric analysis（TGA）,powder X-ray diffraction（PXRD） and single-crystal X-ray *** 1 crystallizes in monoclinic,space group P2/n with a = 20.428（5）,b = 8.084（2）,c = 21.689（5）A,β = 96.360（5）°,Mr = 993.46,V = 3559.7（15）A^3,Z = 4,Dx = 1.845 g/cm^3,μ = 1.276 mm^-1,F（000） = 1974,GOOF = 1.044,λ（Mo Kα） = 0.71073 ？,the final R = 0.0553 and wR = 0.1720 for 7245 observed reflections with I 〉 2σ（I）.

关键词： crystal structure coordination complex fluorescein

来源：评论

学校读者我要写书评

暂无评论

Robust 3D network architectures of MnO nanoparticles bridged by ultrathin graphitic carbon for high-performance lithium-ion battery anodes

引用

Nano Research 2018年第2期11卷 1135-1145页

作者： Jingchun Jia Xiang Hu Zhenhai Wen Key Laboratory of Design and Assembly of Functional Nanostructures Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou China Fujian Provincial Key Laboratory of Nanomaterials Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou China

A strategy was developed to fabricate a set of MnO@C nanohybrids with MnO nanopartides （NPs） embedded in an ultrathin three-dimensional （3D） carbon framework for use as anode materials for lithium-ion batteries （LIBs）. The 3D carbon frameworks provide MnO NPs with electrical pathways and mechanical robustness, which efficiently improved the reaction kinetics, prevented the MnO from fracturing and agglomerating, and limited the formation of a solid electrolyte interface （SEI） at the MnO-electrolyte interface. Benefitting from the unique 3D framework structure, the MnO/C nanohybrids carbonized at 500 ℃ exhibited a highly reversible specific capacity of 1,420 mAh.g-1 at 0.2 A.g-1, excellent cycling stability with 98% capacity retention, and enhanced rate performance of 680 mAh-g-1 at 2 A.g-L The feasibility of the large-scale production of such MnO/C nanohybrids, associated with their outstanding Li-ion storage properties, opens a promising avenue for the development of high-performance anodes for next- generation LIBs.

关键词： network architectures ultrathin carbon MnO Li-ion batter anode

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：