A facile non-injection phosphorus-free synthesis of semiconductor nanoparticles using new selenium precursors

CrystEngComm ◽  
2020 ◽  
Vol 22 (4) ◽  
pp. 786-793
Author(s):  
Maksym Prodanov ◽  
Maksym Diakov ◽  
Valerii Vashchenko

New Se-precursors enable the phosphorus-free non-injection synthesis of luminescent quantum dots and nanotetrapods as well as the injection-based synthesis of quantum rods.

Nanophotonics ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Stijn Jooken ◽  
Yovan de Coene ◽  
Olivier Deschaume ◽  
Dániel Zámbó ◽  
Tangi Aubert ◽  
...  

Abstract The optoelectronic properties of semiconductor nanoparticles make them valuable candidates for the long-term monitoring of transmembrane electric fields in excitable cells. In this work, we show that the electric field sensitivity of the fluorescence intensity of type-I and quasi-type-II quantum dots and quantum rods is enhanced under two-photon excitation compared to single-photon excitation. Based on the superior electric field sensitivity of the two-photon excited fluorescence, we demonstrate the ability of quantum dots and rods to track fast switching E-fields. These findings indicate the potential of semiconductor nanoparticles as cellular voltage probes in multiphoton imaging.


2016 ◽  
Vol 176 ◽  
pp. 65-70 ◽  
Author(s):  
Irina S. Zharkova ◽  
Natalia E. Markina ◽  
Alexey V. Markin ◽  
Daniil D. Drozd ◽  
Elena S. Speranskaya ◽  
...  

2016 ◽  
Vol 16 (8) ◽  
pp. 8360-8365
Author(s):  
Yuan-Cheng Cao ◽  
Wenjun Wei ◽  
Xueqing Liu ◽  
Linling Zou ◽  
Jiyan Liu

Quantum dots (QDs) have shown promising potential to many biomedical and biological applications, mainly in drug delivery or activation and cellular imaging. These semiconductor nanoparticles, QDs, whose particle size is in the range of 2-10 nanometer with unique photo-chemical and -physical properties that are not possessed by any other isolated molecules, have become one of the distinct class of imaging probes and worldwide platforms for manufacturing of multifunctional nanodevices. In this chapter, properties, applications of QDs, and importance in the biomedical field especially in drug delivery is presented.


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