Journal article

Publication year: 2017

Journal: Journal of Nanoparticle Research

Volume number: 19

Issue number: 2

ISSN: 1388-0764

eISSN: 1572-896X

DOI Link: https://doi.org/10.1007/s11051-017-3757-2

Publisher: Springer

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 220A degrees 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.

Harvard Citation style: Schulze, A., Tavernaro, I., Machka, F., Dakischew, O., Lips, K. and Wickleder, M. (2017) Tuning optical properties of water-soluble CdTe quantum dots for biological applications, Journal of Nanoparticle Research, 19(2), Article 70. https://doi.org/10.1007/s11051-017-3757-2

APA Citation style: Schulze, A., Tavernaro, I., Machka, F., Dakischew, O., Lips, K., & Wickleder, M. (2017). Tuning optical properties of water-soluble CdTe quantum dots for biological applications. Journal of Nanoparticle Research. 19(2), Article 70. https://doi.org/10.1007/s11051-017-3757-2