Synthesis and spectral properties of DNA capped CdS nanoparticles in aqueous and non-aqueous media

Synthesis of novel cadmium sulphide nanoparticles has been carried out in aqueous and non-aqueous media. DNA has been added during the synthesis of the nanoparticles, which results into cadmium-rich nanoparticles forming a stable complex with DNA. These particles exhibit strong fluorescence, spectra...

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Bibliographic Details
Published in:Biosensors & bioelectronics 2005-07, Vol.21 (1), p.95-102
Main Authors: Kulkarni, S.K., Ethiraj, A.S., Kharrazi, S., Deobagkar, D.N., Deobagkar, D.D.
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biosensing Techniques
Biosensors
Biotechnology
Cadmium Compounds - analysis
Cadmium Compounds - chemical synthesis
DNA
DNA - analysis
DNA - chemical synthesis
FTIR
Fundamental and applied biological sciences. Psychology
Methods. Procedures. Technologies
Nanoparticles
Nanostructures - analysis
Nanostructures - chemistry
Photoluminescence
Protein sensor
Proteins - analysis
Quantum Dots
Solvents
Spectrophotometry
Spectroscopy, Fourier Transform Infrared
Sulfides - analysis
Sulfides - chemical synthesis
Various methods and equipments
Water
XPS
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Summary:Synthesis of novel cadmium sulphide nanoparticles has been carried out in aqueous and non-aqueous media. DNA has been added during the synthesis of the nanoparticles, which results into cadmium-rich nanoparticles forming a stable complex with DNA. These particles exhibit strong fluorescence, spectral nature of which depends upon the medium in which the particles are synthesized. When interacted with proteins, fluorescence peak intensity of CdS nanoparticles increases considerably. It is possible that such CdS nanoparticles would be useful as a protein sensor.
ISSN:0956-5663
1873-4235
DOI:10.1016/j.bios.2004.09.004