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Synthesis and characterization of intrinsically radiolabeled quantum dots for bimodal detection.

Minghao Sun、David Hoffman、Gobalakrishnan Sundaresan 等 6 位作者2012-01-01PubMed

A novel approach was developed to synthesize radioactive quantum dots (r-QDs) thereby enabling both optical and radionuclide signals to be detected from the same intrinsic bimodal probe. This proof-of-concept is exemplified by the incorporation of the radionuclide (109)Cadmium into the core/shell of the nanoparticle.…

Advanced biosensing and bioanalysis techniquesQuantum Dots Synthesis And PropertiesCarbon and Quantum Dots Applications

Characteristics of Food Contact surface materials: stainless steel

Jeffrey S. Erickson、Steven R. Sims2012-01-01OpenAlex

summary This technical review article describes the properties and characteristics of stainless steel in sanitary design when used as a food contact surface, particularly when compliance with the requirements of standards promulgated by 3-A Sanitary Standards, Inc. is intended. It discusses the general characteristics…

Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsMaterial Selection and Properties

Mathematical Simulation of Cloaking Metamaterial Structures

Jichun Li、Yunqing Huang2012-01-01Advances in Applied Mathematics and Mechanics

Abstract In this paper we present a rigorous derivation of the material parameters for both the cylinder and rectangle cloaking structures. Numerical results using these material parameters are presented to demonstrate the cloaking effect.

Metamaterials and Metasurfaces ApplicationsElectromagnetic Scattering and AnalysisAdvanced Antenna and Metasurface Technologies

ANTIMICROBIAL ACTIVITY OF EXTRACELLULARLY SYNTHESIZED SILVER NANOPARTICLES USING LACTOBACILLUS SPECIES OBTAINED FROM VIZYLAC CAPSULE

Pratik R. Chaudhari、Shalaka A. Masurkar、Vrishali B. Shidore2012-01-01OpenAlex

The development of green experimental processes for the synthesis of nanoparticles is a need in the field of nanotechnology. In present study deals with the extracellular biosynthesis of silver nanoparticles using VIZYLAC capsule containing about 10 Lactobacillus. Two different Species of Lactobacillus obtained from V…

Nanoparticles: synthesis and applicationsAdvanced Nanomaterials in CatalysisGraphene and Nanomaterials Applications

Proteomics analysis of MKN45 cell line before and after treatment with Lavender aqueous extract.

Mona Zamanian Azodi、Mostafa Rezaei–Tavirani、Saeid Heydari-Kashal 等 6 位作者2012-01-01PubMed

AIM: In this study the anticancer activity of Lavender aqueous extract against MKN45 cell line was evaluated. BACKGROUND: Plant-based drugs are regarded as promising therapies. Lavender is a plant that has been cultivated from ancient times. An aqueous extract of Lavender has shown therapeutic effects on the nervous s…

Bioactive Natural Diterpenoids ResearchPhytochemistry and Bioactive CompoundsPhytochemistry and Bioactivity Studies

Fluorescence quenching in Zn2+-bis-terpyridine coordination polymers: a single molecule study

Ronald Siebert、Yuxi Tian、Rafael Camacho 等 10 位作者2012-01-01Journal of Materials Chemistry

A Zn2+-bis-terpyridine coordination polymer is investigated by single-molecule fluorescence spectroscopy (SMS). The bis-terpyridine ligands of the coordination polymers bear conjugated chromophores connecting the terpyridine spheres of the ligands, which resemble structural features of MEH-PPV. To the best of our know…

Porphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent MaterialsNonlinear Optical Materials Studies

A novel functional conducting polymer: synthesis and application to biomolecule immobilization

Fulya Ekiz Kanık、Eda Rende、Suna Tımur 等 4 位作者2012-01-01Journal of Materials Chemistry

A recently synthesized conducting polymer poly(TBT6–NH2); poly(6-(4,7-di(thiophen-2-yl)-2H-benzo[d][1,2,3]triazol-2-yl)hexan-1-amine) was utilized as a matrix for biomolecule immobilization. After successful electrochemical deposition the polymer poly(TBT6–NH2) on the graphite electrodes, immobilization of choline oxi…

Electrochemical sensors and biosensorsConducting polymers and applicationsAnalytical Chemistry and Sensors

A new metallostar complex based on an aluminum(iii) 8-hydroxyquinoline core as a potential bimodal contrast agent

Elke Debroye、Geert Dehaen、Svetlana V. Eliseeva 等 8 位作者2012-01-01Dalton Transactions

A ditopic DTPA monoamide derivative containing an 8-hydroxyquinoline moiety was synthesized and the corresponding gadolinium(III) complex ([Gd(H5)(H(2)O)](-)) was prepared. After adding aluminum(III), the 8-hydroxyquinoline part self-assembled into a heteropolymetallic triscomplex [(Gd5)(3)Al(H(2)O)(3)](3-). The magne…

Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Metal-Support Interaction of Pt Nanoparticles with Ionically and Non-Ionically Conductive Supports for CO Oxidation

Rima J. Isaifan、Holly A. E. Dole、Emil Obeid 等 6 位作者2012-01-01Electrochemical and Solid-State Letters

Metal-Support Interaction of Pt Nanoparticles with Ionically and Non-Ionically Conductive Supports for CO Oxidation, Isaifan, Rima J., Dole, Holly A. E., Obeid, Emil, Lizarraga, Leonardo, Vernoux, Philippe, Baranova, Elena A.

Electrocatalysts for Energy ConversionCatalytic Processes in Materials ScienceCatalysis and Oxidation Reactions

Dual photorecording on cholesteric azobenzene-containing LC polymer films using helix pitch phototuning and holographic grating recording

Alexander Ryabchun、Alexey Bobrovsky、Anna Sobolewska 等 5 位作者2012-01-01Journal of Materials Chemistry

For the first time the possibility to perform dual recording in cholesteric LC polymer films was demonstrated by means of helix pitch photo-tuning and holographic grating recording, as far as these two photo-processes take place under the exposure to light with different wavelengths. For this purpose the cholesteric m…

Liquid Crystal Research AdvancementsSynthesis and Properties of Aromatic CompoundsPhotochromic and Fluorescence Chemistry

Field-Emission and Photoelectrical Characteristics of ZnO Nanorods Photodetectors Prepared on Flexible Substrate

T. P. Chen、Sheng‐Joue Young、Shoou‐Jinn Chang 等 5 位作者2012-01-01Journal of The Electrochemical Society

Vertical zinc oxide nanorods were synthesized on flexible polyimide (PI) substrate by a low temperature process, aqueous method. The field emission performance of ZnO nanorods can be greatly enhanced by illuminating UV light. It was found that the turn-on electric field can be reduced from 4.3 to 2.0 V/μm and it is at…

ZnO doping and propertiesGas Sensing Nanomaterials and SensorsGa2O3 and related materials

Leptadenia hastata: A Review of its Traditional uses and its Pharmacological Activity

Steven Thomas2012-01-01Medicinal Chemistry

Leptadenia hastata (Pers.) Decne is often used traditionally for hypertension, catarrh, skin diseases, woundhealing, prostate complaints and as an aphrodisiac. In traditional systems of medicine, different parts are used including the leaves, latex, roots and even whole plant. Leptadenia hastata is reported to contain…

Phytochemistry Medicinal Plant ApplicationsChemical synthesis and alkaloidsPhytochemistry and Bioactive Compounds

Synthesis and recognition properties of higher order tetrathiafulvalene (TTF) calix[n]pyrroles (n = 4–6)

Jung Su Park、Christopher Bejger、Karina R. Larsen 等 9 位作者2012-01-01Chemical Science

Two new benzoTTF-annulated calix[n]pyrroles (n = 5 and 6) were synthesized via a one-step acid catalyzed condensation reaction and fully characterized via single crystallographic analyses. As compared to the known tetra-TTF annulated calix[4]pyrrole, which is also produced under the conditions of the condensation reac…

Molecular Sensors and Ion DetectionOrganic and Molecular Conductors ResearchSolid-state spectroscopy and crystallography

Phase structural formation and oscillation in polystyrene-block-polydimethylsiloxane thin films

I‐Fan Hsieh、Hao‐Jan Sun、Qiang Fu 等 6 位作者2012-01-01Soft Matter

The solvent-induced spherical structure in a polystyrene-block-polydimethylsiloxane (PS-b-PDMS) block copolymer was obtained and stabilized by preparing both the bulk and thin films from propylene glycol methyl ether acetate (PGMEA) solutions. The diblock copolymer possessed a total molecular weight of 42 kDa with a P…

Advanced Polymer Synthesis and CharacterizationRheology and Fluid Dynamics StudiesBlock Copolymer Self-Assembly

Ru(ii) sensitized lanthanide luminescence: synthesis, photophysical properties, and near-infrared luminescent determination of alpha-fetal protein (AFP)

Qiao‐Hua Wei、Yan-Fang Lei、Wen-Ran Xu 等 5 位作者2012-01-01Dalton Transactions

A series of dinuclear compounds of [Ru(bpy)(2)(tpphz)Ln(TTA)(3)](PF(6))(2) (tpphz = tetrapyrido[3,2-a:2',3'-c:3'',2''-h:3''',4'''-j]phenazine; Ln = Er(III), Nd(III), Yb(III) and Gd(III); TTA = 2-thenoyltrifluoroacetone) have been prepared by attachment of a [Ln(TTA)(3)] fragment at the vacant diimine site of the lumin…

Advanced MRI Techniques and ApplicationsRadioactive element chemistry and processingLanthanide and Transition Metal Complexes

Protected Graft Copolymer (PGC) in Imaging and Therapy: A Platform for the Delivery of Covalently and Non-Covalently Bound Drugs

Alexei Bogdanov、Mary L. Mazzanti、Gerardo M. Castillo 等 4 位作者2012-01-01Theranostics

Initially developed in 1992 as an MR imaging agent, the family of protected graft copolymers (PGC) is based on a conjugate of polylysine backbone to which methoxypoly(ethylene glycol) (MPEG) chains are covalently linked in a random fasion via N-ε-amino groups. While PGC is relatively simple in terms of its chemcial co…

Nanoparticle-Based Drug DeliveryHydrogels: synthesis, properties, applicationsRNA Interference and Gene Delivery

Functionalization of graphene by tetraphenylethylene using nitrene chemistry

Xiujuan Xu、Wei Lv、Jing Huang 等 9 位作者2012-01-01RSC Advances

We have demonstrated that via nitrene addition, graphene was covalently functionalized by tetraphenylethylene, which is a typical aggregation-induced emission (AIE) molecule with a twisted conformation. The obtained new nanocomposite TPE–C4N3–G–S was characterized by transmission electron microscopy (TEM), fourier tra…

Graphene research and applicationsLuminescence and Fluorescent MaterialsCarbon and Quantum Dots Applications

Two-dimensional frameworks built from Single-Molecule Magnets

Athanassios D. Katsenis、Ross Inglis、Alessandro Prescimone 等 5 位作者2012-01-01CrystEngComm

Fine tuning the Mn/salicylaldoxime/trimesic acid reaction conditions leads to the formation of a regular 2D net held together by dative bonds and to a non-regular 2D net stabilised by both dative and hydrogen bonds. Both networks are built from [Mn6] Single-Molecule Magnets.

Metal-Organic Frameworks: Synthesis and ApplicationsMagnetism in coordination complexesOrganic and Molecular Conductors Research

Insights from impedance spectroscopy into the mechanism of thermal decomposition of M(NH2BH3), M = H, Li, Na, Li0.5Na0.5, hydrogen stores

Karol J. Fijałkowski、Rafał Jurczakowski、Wiktor Koźmiński 等 4 位作者2012-01-01Physical Chemistry Chemical Physics

We report the first solid-state impedance study of hydrogen-rich ammonia borane, AB, and its three alkali metal amidoborane derivatives. Temperature-dependent impedance spectra of solid M(NH(2)BH(3)) salts are predominated by ionic conductivity, which at room temperature ranges from 5.5 μS cm(-1) (M = Li) to 2.2-3.0 m…

Hydrogen Storage and MaterialsBoron and Carbon Nanomaterials ResearchAmmonia Synthesis and Nitrogen Reduction

Coupling Schemes in Terahertz Planar Metamaterials

Dibakar Roy Chowdhury、Ranjan Singh、Antoinette J. Taylor 等 6 位作者2012-01-01International Journal of Optics

We present a review of the different coupling schemes in a planar array of terahertz metamaterials. The gap-to-gap near-field capacitive coupling between split-ring resonators in a unit cell leads to either blue shift or red shift of the fundamental inductive-capacitive ( LC ) resonance, depending on the position of t…

Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchAdvanced Antenna and Metasurface Technologies