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Tuning optical properties of water-soluble CdTe quantum dots for biological applications
- Source :
- Journal of Nanoparticle Research. 19
- Publication Year :
- 2017
- Publisher :
- Springer Science and Business Media LLC, 2017.
-
Abstract
- In this study, two different synthetic methods in aqueous solution are presented to tune the optical properties of CdTe and CdSe semiconductor nanoparticles. Additionally, the influence of different temperatures, pressures, precursor ratios, surface ligands, bases, and core components in the synthesis was investigated with regard to the particle sizes and optical properties. As a result, a red shift of the emission and absorption maxima with increasing reaction temperature (100 to 220°C), pressure (1 to 25 bar), and different ratios of core components of alloyed semiconductor nanoparticles could be observed without a change of the particle size. An increase in particle size from 2.5 to 5 nm was only achieved by variation of the mercaptocarboxylic acid ligands in combination with the reaction time and used base. To get a first hint on the cytotoxic effects and cell uptake of the synthesized quantum dots, in vitro tests mesenchymal stem cells (MSCs) were carried out.
- Subjects :
- Properties of water
Materials science
Base (chemistry)
Bioengineering
Nanotechnology
02 engineering and technology
010402 general chemistry
01 natural sciences
chemistry.chemical_compound
General Materials Science
chemistry.chemical_classification
Aqueous solution
General Chemistry
021001 nanoscience & nanotechnology
Condensed Matter Physics
Atomic and Molecular Physics, and Optics
Cadmium telluride photovoltaics
0104 chemical sciences
chemistry
Chemical engineering
Quantum dot
Modeling and Simulation
Particle
Particle size
Absorption (chemistry)
0210 nano-technology
Subjects
Details
- ISSN :
- 1572896X and 13880764
- Volume :
- 19
- Database :
- OpenAIRE
- Journal :
- Journal of Nanoparticle Research
- Accession number :
- edsair.doi...........8c3b16824e4f27f03080cd1ca05325ac