نتایج جستجو برای: cds nanoparticle

تعداد نتایج: 38671  

H. S.Virk P. Sharma S. Singh

Cadmium Sulphide (CdS) nanoparticles were prepared using microemulsion method using cadmium chloride as cadmium source and sodium sulphide as sulphur source. The obtained nanoparticles structures were characterized by X-ray diffraction (XRD) and Transmission Electron Microscopy (TEM) whereas optical characterization was done by Ultra Violet-Visible absorption. XRD result shows that CdS nanopart...

Journal: :AJNR. American journal of neuroradiology 2003
Robert A Bucek Markus Reiter Albert Dirisamer Markus Haumer Angelika Fritz Erich Minar Johannes Lammer

BACKGROUND AND PURPOSE Color Doppler sonography (CDS) suffers from such disadvantages as high interobserver variability and problems with data presentation and storage. We therefore performed a prospective trial to assess the role of three-dimensional CDS (3D-CDS) in the evaluation of internal carotid artery stenosis (ICAS). METHODS We included 32 consecutive patients with sonographically ver...

M Keshavarz, M R Khanlary,

In this work we report the synthesis and characterization of hybrid nanostructures of multiwall carbon nanotubes (MWCNT) and cadmium sulphide (CdS) nanoparticles. In a solution of thioacetamide and cadmium sulphide, purified MWCNT are added to prepare the CNT/CdS hetrostructure. XRD diagrams, SEM images, and also photoluminescence spectra of the prepared samples are analyzed. SEM images show th...

Journal: :Chemical communications 2009
Xin Xu Fazhi Zhang Sailong Xu Jing He Lianying Wang David G Evans Xue Duan

Highly ordered transparent composite films of CdS and layered double hydroxides (LDHs) have been fabricated using a template synthesis method; the size of the CdS particles in the LDH host can be controlled by adjusting the length of time of the reaction with H(2)S.

Journal: :Nanoscale 2012
Nina V Kuchkina David Gene Morgan Barry D Stein Lada N Puntus Alexander M Sergeev Alexander S Peregudov Lyudmila M Bronstein Zinaida B Shifrina

Semiconductor nanoparticles (NPs) are being actively explored for applications in medical diagnostics and therapy and numerous electronic devices including solar cells. In this paper we demonstrate the influence of the third generation rigid polyphenylenepyridyl dendrimers (PPPDs) of a different architecture on the formation of well-defined CdS NPs. A high temperature approach to the synthesis ...

2007
S. Shankara Narayanan Rupa Sarkar Samir Kumar Pal

In this contribution, we report the synthesis of CdS nanoparticles directly conjugated to an enzyme, R-chymotrypsin (CHT) by chemical reduction in aqueous solution. Matrix-assisted laser desorption ionization (MALDI) mass spectrometry confirms the strong conjugation of CdS nanoparticles to CHT through covalent bonding in the CdS-CHT conjugates. High-resolution transmission electron microscopy (...

Journal: :Physical chemistry chemical physics : PCCP 2016
Wenshuo Wang Cornelia Damm Johannes Walter Thomas J Nacken Wolfgang Peukert

In this work we performed a detailed investigation of the photostability of bottom-up produced carbon nanodots (CDs) prepared from citric acid and urea by solvothermal synthesis. Analytical ultracentrifugation (AUC) reveals that the CDs have a hydrodynamic diameter of <1 nm and a very narrow size distribution. In the community it is widely assumed that CDs are photo-stable. In contrast, we foun...

Journal: :Small structures 2023

For a long time, researchers in nanochemistry have been exploring ways to create 3D structures using cross‐linked nanoparticles, such as lyogels and aerogels. In the present work, how simple modifications nanoparticle surface can be used influence resulting structure targeted manner is demonstrated. Specifically, positively charged ligands containing amine groups are compared negatively typical...

2016
Yuan-Chang Liang Tsai-Wen Lung

CdS crystallites with rod- and flower-like architectures were synthesized using a facile hydrothermal growth method. The hexagonal crystal structure of CdS dominated the growth mechanisms of the rod- and flower-like crystallites under specific growth conditions, as indicated by structural analyses. The flower-like CdS crystallites had a higher crystal defect density and lower optical band gap v...

2015
Mikalai V Malashchonak Alexander V Mazanik Olga V Korolik Еugene А Streltsov Anatoly I Kulak

The photoelectrochemical properties of nanoheterostructures based on the wide band gap oxide substrates (ZnO, TiO2, In2O3) and CdS nanoparticles deposited by the successive ionic layer adsorption and reaction (SILAR) method have been studied as a function of the CdS deposition cycle number (N). The incident photon-to-current conversion efficiency (IPCE) passes through a maximum with the increas...

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