欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
发光共振能量转移（LRET）与给体-受体间的距离密切相关,可体现分子间距离的变化,在生命科学领域有着重要的应用.本文设计并合成了Au@SiO2/LaF3∶Ce,Tb复合纳米结构,研究了LaF3∶Ce,Tb（给体）与Au纳米颗粒（受体）间的LRET行为.通过调控SiO2层厚度,可以改变给体-受体之间的距离.当SiO2层厚度增加到42 nm时,仍能观察到明显的LRET现象.这一距离远超过通常荧光共振能量转移的有效范围,表明由长发光寿命的稀土发光纳米材料与金纳米颗粒形成的给体-受体对可在更大的距离上实现能量转移.
英文摘要：
Au@SiO2/LaF3∶Ce,Tb nanostructures were synthesized simply by the coprecipitation of LaF3∶Ce,Tb in the presence of Au@SiO2 nanoparticles.The as-obtained nanostructures were used as a model system to investigate the luminescence resonance energy transfer（LRET） process,where Tb3＋,Au,and SiO2 served as long-lifetime donor,quenching acceptor,and distance spacer,respectively.The LRET efficiency decreased with the increase of the thickness of silica shell.Importantly,the LRET process could still be observed even when the thickness of silica shell increased up to 42 nm.This long-distance LRET phenomenon can be attributed to the long lifetime of Tb^3＋ and the ＂point-to-surface＂ transfer model modified for Au nanoparticle acceptor.This result indicates that the analogous systems could be employed to study the LRET processes that take place over larger distances（10 nm）.
同期刊论文项目
同项目期刊论文
Superparamagnetic and upconversion emitting Fe3O4/NaYF4:Yb,Er hetero-nanoparticles via a crosslinker
Synthesis and assembly of rare earth nanostructures directed by the principle of coordination chemis
The Role of Surface Ligands in the Nanoparticle Assemblies: A Case Study of Regularly Shaped Colloid
Effects of dyes, gold nanocrystals, pH, and metal ions on the plasmonic and molecular resonance coup
Heteroepitaxial growth of core-shell and core-multishell nanocrystals composed of palladium and gold
H(2)InB(5)O(10): A New Pentaborate Constructed from 2D Tetrahedrally Four-Connected Borate Layers an
Monazite and Zircon Type LaVO(4):Eu Nanocrystals-Synthesis, Luminescent Properties, and Spectroscopi
Luminescence Modulation of Ordered Upconversion Nanopatterns by a Photochromic Diarylethene: Rewrita
Colloidal synthesis and blue based multicolor upconversion emissions of size and composition control
Self-assembled 3-D flower-shaped SnO(2) nanostructures with improved electrochemical performance for
Promoted H(2) Generation from NH(3)BH(3) Thermal Dehydrogenation Catalyzed by Metal-Organic Framewor
Low-temperature mass production of superconducting MgB(2) nanofibers from Mg(BH(4))(2) decomposition
Interfacial growth behavior of SnO2 nanorods on {11(2)over-bar0} and {10(1)over-bar0} facets of alph
Variations of phase transition temperature and enthalpy in the systems Na2Mo1-xWxO4 and Na2Mo1-ySyO4
Bubble assisted synthesis of Sn-Sb-Cu alloy hollow nanostructures and their improved lithium storage
Ionic Liquid-Based Route to Spherical NaYF(4) Nanoclusters with the Assistance of Microwave Radiatio
Low-temperature growth of vertically aligned In(2)O(3) nanoblades with improved lithium storage prop
Superparamagnetic and upconversion emitting Fe(3)O(4)/NaYF(4):Yb,Er hetero-nanoparticles via a cross
Tuning kinetics of controlled-release in disulfide-linked MSN-folate conjugates with different fabri
Role of Surface Ligands in the Nanoparticle Assemblies: A Case Study of Regularly Shaped Colloidal C
The shape-stabilized phase change materials composed of polyethylene glycol and various mesoporous m
Synthesis and Cyclic Hydrogenation Properties of Magnesium Ultrafine Nanoparticles Prepared by Acety
Synthesis of magnesium nanoparticles with superior hydrogen storage properties by acetylene plasma m
Preparation and characterization of polyethylene glycol/active carbon composites as shape-stabilized
Decomposition pathway of Mg(BH(4))(2) under pressure: Metastable phases and thermodynamic parameters
Syntheses and Crystal Structures of Two New Bismuth Hydroxyl Borates Containing [Bi(2)O(2)](2+) Laye
Influence of thermal treatments on the low frequency conductivity and microwave dielectric loss of C
Study on the crystal structure of the rare earth oxyborate Yb(26)B(12)O(57) from powder X-ray and ne
Facile Synthesis of Highly Ordered Mesoporous ZnTiO(3) with Crystalline Walls by Self-Adjusting Meth
Syntheses, Structures, and Structural Transformations of Mixed Na(I) and Zn(II) Metal-Organic Framew
Bioimaging and toxicity assessments of near-infrared upconversion luminescent NaYF(4):Yb,Tm nanocrys
Fluorescent-magnetic nanocrystals: synthesis and property of YP(x)V(1-x)O(4):Eu@GdPO(4) core/shell s
A facile route to ordered mesoporous-alumina-supported catalysts, and their catalytic activities for
A highly efficient Co (0) catalyst derived from metal-organic framework for the hydrolysis of ammoni
Erbium-formate frameworks templated by diammonium cations: syntheses, structures, structural transit
Preparation and study of alkyl carbamylated polyrotaxanes with large hysteresis during sol-gel phase
Synthesis, characterization, and photocatalytic properties of Ag modified hollow SiO(2)/TiO(2) hybri
Reversible luminescence switching of NaYF4:Yb,Er nanoparticles with controlled assembly of gold nano
Ag nanowires enhanced upconversion emission of NaYF4:Yb,Er nanocrystals via a direct assembly method
Luminescence Switching of a Cyclometalated Iridium(III) Complex through a Redox-active Tetrathiafulv
Facile Synthesis of Macrocellular Mesoporous Foam-like Ce-Sn Mixed Oxide with Nanocrystalline Framew
An enhanced fluorescence in a tunable face-to-face p×××p stacking assembly directed by the H-bonding
Intramolecular Charge Transfer in 5-Methoxy-2-(2-pyridyl)thiazole-Derived Fluorescent Molecules with
Orientational Organization of Organic Semiconductors within the Periodical Nanoscale Silica Channels
Logic Circuits Constructed with an Ion-sensitive Fluorescent Molecule 1,2-di[5-methoxy-2- (2-pyridyl
Mesostructured Hybrids Containing Potential Donors and Acceptors with Molecular-Scale and Meso-Scale
Synthesis and Characterization of a Fluorotitanophosphate (NH(4))(0.16)K(1.84)[Ti(2)F(2)(PO(4))(2)(P
Facile Synthesis of Macrocellular Mesoporous Foamlike Ce-Sn Mixed Oxides with a Nanocrystalline Fram
Controllable Assembly of Diverse Rare-Earth Nanocrystals via the Langmuir-Blodgett Technique and the
Solid-to-Hollow Single-Particle Manipulation of a Self-Assembled Luminescent NaYF(4):Yb,Er Nanocryst
General and facile synthesis of ceria-based solid solution nanocrystals and their catalytic properti
Highly ordered mesoporous titania-zirconia photocatalyst for applications in degradation of rhodamin
Self-Assembled Ferromagnetic Monodisperse Manganese Oxide Nanoplates Synthesized by a Modified Nonhy
Uniform Alkaline Earth Fluoride Nanocrystals with Diverse Shapes Grown from Thermolysis of Metal Tri
Optically active uniform potassium and lithium rare earth fluoride nanocrystals derived from metal t
Orientational Organization of Organic Semiconductors within Periodic Nanoscale Silica Channels: Modi
Hydrogen absorption-desorption, optical transmission properties and annealing effect of Mg thin film
Clean and Flexible Modification Strategy for Carboxyl/Aldehyde-Functionalized Upconversion Nanoparti
Fe(5)O(5)[B(6)O(10)(OH)(3)] center dot nH(2)O: Wave-Layered Iron Borate and Frustrated Antiferromagn
PKU-9: An Aluminogermanate with a New Three-Dimensional Zeolite Framework Constructed from CGS Layer
One-Dimensional Chainlike Arrays of Fe(3)O(4) Hollow Nanospheres Synthesized by Aging Iron Nanoparti
Hierarchical gamma-Al(2)O(3) monoliths with highly ordered 2D hexagonal mesopores in macroporous wal
Formation of polyhedral ceria nanoparticles with enhanced catalytic CO oxidation activity in thermal
期刊信息
位置：