Synthesis of water-soluble, ultrabright Cu nanoclusters with core-shell structure via facile reduction approach for determination of 4-nitrophenol

2021 ◽  
Author(s):  
Jian-Hang Yin ◽  
Mengxuan Liu ◽  
Lei Meng ◽  
Nai-Di Tan ◽  
Na Xu
Keyword(s):  
Shell Structure ◽  
Water Soluble ◽  
Core Shell ◽  
Core Shell Structure ◽  
Cu Nanoclusters ◽  
Reduction Approach

Sensitive determination of catechol using a glassy carbon electrode modified with l-cysteine and ZnS:Ni/ZnS quantum dots

2015 ◽  
Vol 7 (1) ◽  
pp. 260-265 ◽  
Author(s):  
Jianying Qu ◽  
Yong Wang ◽  
Ying Dong ◽  
Zhuanying Zhu ◽  
Huanhuan Xing
Keyword(s):  
Quantum Dots ◽  
Electrochemical Sensor ◽  
Glassy Carbon ◽  
Shell Structure ◽  
Water Soluble ◽  
Core Shell ◽  
Carbon Electrode ◽  
Sensitive Determination ◽  
Core Shell Structure

In this work, water-soluble ZnS:Ni/ZnS quantum dots with core/shell structure were obtained successfully. Based on this, a novel electrochemical sensor for sensitive determination of CC was fabricated.

Medicated structural PVP/PEG composites fabricated using coaxial electrospinning

e-Polymers ◽  
2017 ◽  
Vol 17 (1) ◽  
pp. 39-44 ◽  
Author(s):  
Yong-Hui Wu ◽  
Deng-Guang Yu ◽  
Hai-Peng Li ◽  
Xiang-Yang Wu ◽  
Xiao-Yan Li
Keyword(s):  
Electron Microscope ◽  
Citric Acid ◽  
Shell Structure ◽  
Water Soluble ◽  
Working Fluid ◽  
Coaxial Electrospinning ◽  
Core Shell ◽  
The Core ◽  
Poorly Water Soluble ◽  
Core Shell Structure

AbstractA new type of medicated polymeric composite consisting of acyclovir (ACY), polyvinylpyrrolidone K60 (PVP) and polyethylene glycol 6000 (PEG) with core-shell structure were prepared by a coaxial electrospinning process. The composites could enhance the dissolution of the poorly water-soluble drug. The shell layers were formed from a spinnable working fluid containing the filament-forming PVP and citric acid while the core parts were prepared from an un-spinnable co-dissolving solution composed of ACY, sodium hydrate and PEG. Scanning electron microscope and transmission electron microscope observations demonstrated that the composites had a homogeneous linear topography with a slippery surface, a diameter of 670±130 nm, and an obvious core-shell structure. X-ray diffraction (XRD) and attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy results demonstrated that the drug and citric acid contained in the core and shell parts were in an amorphous status. In vitro dissolution experiments exhibited that ACY was able to be free within 1 min, and the dissolution media were neutral due to acid-basic action within the core-shell structures. The medicated nanocomposites resulted from a combined usage of hydrophilic polymeric excipients PVP and PEG could provide a new solution to the problem associated with the dissolution of poorly water-soluble drugs.

Application of the apparent lattice parameter to determination of the core-shell structure of nanocrystals

2007 ◽  
Vol 222 (11/2007) ◽  
Author(s):  
Bogdan Palosz ◽  
Svetlana Stelmakh ◽  
Ewa Grzanka ◽  
Stanislaw Gierlotka ◽  
Witold Palosz
Keyword(s):  
Shell Model ◽  
Shell Structure ◽  
Lattice Parameter ◽  
Core Shell ◽  
Bragg Scattering ◽  
The Core ◽  
Core Shell Structure

In this review work we discuss applicability of Bragg scattering to examination of nanocrystals. We approximate the structure of nanograins by a commonly accepted core-shell model. We show that, for principal reasons, the Bragg equation is not applicable directly to nanocrystals. We use the Bragg relation through application of the

Synthesis and properties of water-soluble CdSe/ZnS nanocrystals with the type-I core/shell structure

2008 ◽  
Vol 23 (5) ◽  
pp. 600-605 ◽  
Author(s):  
Deping Wang ◽  
Meijuan Yu ◽  
Wenhai Huang ◽  
Wangxing Xie ◽  
Lu Wang
Keyword(s):  
Shell Structure ◽  
Water Soluble ◽  
Core Shell ◽  
Type I ◽  
Zns Nanocrystals ◽  
Core Shell Structure

Water-soluble, high-quality ZnSe@ZnS core/shell structure nanocrystals

2013 ◽  
Vol 1 (1) ◽  
pp. 56-64 ◽  
Author(s):  
Yongling Ding ◽  
Huadong Sun ◽  
Dong Liu ◽  
Futian Liu ◽  
Dongzhi Wang ◽  
...  
Keyword(s):  
Shell Structure ◽  
Water Soluble ◽  
Core Shell ◽  
High Quality ◽  
Core Shell Structure

Determination of and evidence for non-core-shell structure of particles containing black carbon using the Single-Particle Soot Photometer (SP2)

2012 ◽  
Vol 39 (6) ◽  
pp. n/a-n/a ◽  
Author(s):  
Arthur J. Sedlacek ◽  
Ernie R. Lewis ◽  
Lawrence Kleinman ◽  
Jianzhong Xu ◽  
Qi Zhang
Keyword(s):  
Black Carbon ◽  
Single Particle ◽  
Shell Structure ◽  
Core Shell ◽  
Core Shell Structure

Application of the apparent lattice parameter to determination of the core-shell structure of nanocrystals

nano Online ◽  
2016 ◽  
Author(s):  
Bogdan Palosz ◽  
Svetlana Stelmakh ◽  
Ewa Grzanka ◽  
Stanislaw Gierlotka ◽  
Witold Palosz
Keyword(s):  
Shell Structure ◽  
Lattice Parameter ◽  
Core Shell ◽  
The Core ◽  
Core Shell Structure

scholarly journals 2D analysis of polydisperse core–shell nanoparticles using analytical ultracentrifugation

The Analyst ◽  
2017 ◽  
Vol 142 (1) ◽  
pp. 206-217 ◽  
Author(s):  
Johannes Walter ◽  
Gary Gorbet ◽  
Tugce Akdas ◽  
Doris Segets ◽  
Borries Demeler ◽  
...  
Keyword(s):  
Shell Structure ◽  
Analytical Ultracentrifugation ◽  
Accurate Determination ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Core Shell Structure ◽  
Core Shell Nanoparticles

A tool for the 2D analysis of polydisperse core–shell nanoparticles using analytical ultracentrifugation is presented. It allows for the accurate determination of sizes and densities of sub-10 nm particles, thereby revealing important information on their core–shell structure.

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