CdSe/CdS Core/Shell Quantum Dots Synthesized with Water Soluble Polymer for Potential Biosensor Applications

Quantum dots (QDs) are very promising advanced materials due to their nanoscale dimensions and properties of quantum confinement. Among the most promising applications of QDs, the use as biomaterials is highlighted, especially as optical biosensors and biomarkers. In this work CdSe-CdS core-shell nanoparticles were obtained through colloidal aqueous route at room temperature. The biocompatible polymer poly (vinyl alcohol) modified with carboxyl groups (PVA-COOH) was used as a stabilizing agent. The effect of growing CdS shell on the quantum properties and dimensions of CdSe nanoparticles (core-shell structure) was studied by UV-vis spectroscopy, photoluminescence (PL) and transmission electron microscopy (TEM). The results showed the influence of the growth of the CdS shell layers in the optical properties of quantum dots. Based on the results it can be stated that conjugated systems of CdS/CdSe-PVA-COOH were obtained and exhibited enhanced photoluminescent behavior, an essential property to use this system in biosensing devices.

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A facile green synthesis of type II water soluble CdTe/CdS core shell nanoparticles

Materials Letters ◽

10.1016/j.matlet.2014.06.152 ◽

2014 ◽

Vol 133 ◽

pp. 9-13 ◽

Cited By ~ 12

Author(s):

Oluwatobi.S. Oluwafemi ◽

Olamide A. Daramola ◽

Vuyelwa Ncapayi

Keyword(s):

Green Synthesis ◽

Water Soluble ◽

Core Shell ◽

Type Ii ◽

Shell Nanoparticles ◽

Core Shell Nanoparticles

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BSA-PLGA-Based Core-Shell Nanoparticles as Carrier System for Water-Soluble Drugs

Pharmaceutical Research ◽

10.1007/s11095-013-1084-6 ◽

2013 ◽

Vol 30 (9) ◽

pp. 2396-2409 ◽

Cited By ~ 39

Author(s):

Deepak Chitkara ◽

Neeraj Kumar

Keyword(s):

Water Soluble ◽

Core Shell ◽

Carrier System ◽

Shell Nanoparticles ◽

Water Soluble Drugs ◽

Core Shell Nanoparticles

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Synthesis of robust water-soluble ZnS:Mn/SiO2 core/shell nanoparticles

Journal of Nanoparticle Research ◽

10.1007/s11051-007-9296-5 ◽

2007 ◽

Vol 10 (4) ◽

pp. 653-658 ◽

Cited By ~ 19

Author(s):

Jing Sun ◽

Jiaqi Zhuang ◽

Shaowei Guan ◽

Wensheng Yang

Keyword(s):

Water Soluble ◽

Core Shell ◽

Shell Nanoparticles ◽

Core Shell Nanoparticles

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ChemInform Abstract: Universal Approach to the Synthesis of Silver Sulfide in the Forms of Nanopowders, Quantum Dots, Core-Shell Nanoparticles, and Heteronanostructures

ChemInform ◽

10.1002/chin.201651224 ◽

2016 ◽

Vol 47 (51) ◽

Author(s):

Stanislav I. Sadovnikov ◽

Aleksandr I. Gusev

Keyword(s):

Quantum Dots ◽

Silver Sulfide ◽

Core Shell ◽

Shell Nanoparticles ◽

Universal Approach ◽

Core Shell Nanoparticles

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Multifunctional gadolinium-labeled silica-coated core/shell quantum dots for magnetic resonance and fluorescence imaging of cancer cells

RSC Advances ◽

10.1039/c4ra02424a ◽

2014 ◽

Vol 4 (40) ◽

pp. 20641-20648 ◽

Cited By ~ 22

Author(s):

Babao Lin ◽

Xiuzhong Yao ◽

Yihua Zhu ◽

Jianhua Shen ◽

Xiaoling Yang ◽

...

Keyword(s):

Quantum Dots ◽

Magnetic Resonance ◽

Cancer Cells ◽

Fluorescence Imaging ◽

Core Shell ◽

Shell Nanoparticles ◽

High Relaxivity ◽

Core Shell Nanoparticles

Multifunctional gadolinium-labeled silica-coated core/shell nanoparticles with high relaxivity and photoluminescence were synthesized for dual-modal contrast.

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Photochromic Core-Shell Nanoparticles

Current Chinese Science ◽

10.2174/2210298101666210114100325 ◽

2021 ◽

Vol 01 ◽

Author(s):

V.A. Barachevsky

Keyword(s):

Quantum Dots ◽

Noble Metals ◽

Kinetic Studies ◽

Core Shell ◽

Shell Nanoparticles ◽

Preparation Methods ◽

Hybrid Compounds ◽

The Core ◽

Core Shell Nanoparticles ◽

Nanoparticles Of Noble Metals

: The results of own spectral-kinetic studies in the field of nanophotochromism of the core‒shell type hybrid compounds are integrated. The properties of photochromic nanoparticles of this type based on photochromic spirocompounds (spiropyrans and spirooxazines), chromenes, and diarylethenes and nanoparticles of noble metals (Ag and Au), diamonds, graphene and its oxide, silica, fullerenes, and quantum dots are considered. Preparation methods of photochromic nanoparticles have been developed.

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