Luminescence properties of lanthanide upconversion nanoparticles for biomedicine

2019 ◽  
Author(s):  
Olga E. Sarmanova ◽  
Sergey A. Burikov ◽  
Tatiana A. Dolenko
Keyword(s):  
Luminescence Properties ◽  
Upconversion Nanoparticles

Evaluation of Luminescence Properties of Single Hydrophilic Upconversion Nanoparticles by Optical Trapping

2019 ◽  
Vol 123 (15) ◽  
pp. 10107-10113 ◽  
Author(s):  
Ya-Feng Kang ◽  
Bei Zheng ◽  
Chong-Yang Song ◽  
Cheng-Yu Li ◽  
Zhi-Liang Chen ◽  
...  
Keyword(s):  
Optical Trapping ◽  
Luminescence Properties ◽  
Upconversion Nanoparticles

808 nm excited energy migration upconversion nanoparticles driven by a Nd3+–Trinity system with color-tunability and superior luminescence properties

Nanoscale ◽  
2018 ◽  
Vol 10 (6) ◽  
pp. 2790-2803 ◽  
Author(s):  
Shuai Guo ◽  
Ming-Kiu Tsang ◽  
Wai-Sum Lo ◽  
Jianhua Hao ◽  
Wing-Tak Wong
Keyword(s):  
Energy Migration ◽  
Luminescence Properties ◽  
Upconversion Nanoparticles ◽  
Heating Effects ◽  
Color Tunability

A novel nanostructure is fabricated with an 808 nm excited/Nd3+-sensitized EMU system to avoid over-heating effects, gained with favourable luminescence properties.

Synthesis and luminescence properties of NaGdF4: Yb3+, Ce3+, and Ho3+ upconversion nanoparticles doped with Zn2+

CrystEngComm ◽  
2018 ◽  
Vol 20 (19) ◽  
pp. 2663-2668 ◽  
Author(s):  
Ye Kuang ◽  
Jiating Xu ◽  
Chen Wang ◽  
Chuanqing Wang ◽  
Hua Shao ◽  
...  
Keyword(s):  
Crystal Lattice ◽  
Luminescence Properties ◽  
Upconversion Nanoparticles

Due to shrinkage of crystal lattice and formation of F− vacancies, the luminescence intensities show a rise-and-fall change with growing Zn2+ concentration in β-NaGdF4 UCNPs.

scholarly journals Upconversion NaYF4:Yb:Er nanoparticles co-doped with Gd3+ and Nd3+ for thermometry on the nanoscale

RSC Advances ◽  
2015 ◽  
Vol 5 (82) ◽  
pp. 67149-67156 ◽  
Author(s):  
D. T. Klier ◽  
M. U. Kumke
Keyword(s):  
Oleic Acid ◽  
Upconversion Luminescence ◽  
Crystal Phase ◽  
Luminescence Properties ◽  
Upconversion Nanoparticles ◽  
Temperature Range ◽  
Co Doped

The upconversion luminescence properties of oleic acid capped NaYF4:Gd3+:Yb3+:Er3+ upconversion nanoparticles (UCNP) with pure β crystal phase and Nd3+ ions as an additional sensitizer were studied in the temperature range of 288 K < T < 328 K.

Physiochemical properties of greatly enhanced photoluminescence of aqueous dispersible upconversion CaF2:Yb/Er nanoparticles

2017 ◽  
Vol 16 (6) ◽  
pp. 890-896 ◽  
Author(s):  
Anees A. Ansari ◽  
Ranvijay Yadav ◽  
S. B. Rai
Keyword(s):  
Metal Complex ◽  
Surface Coating ◽  
Luminescence Properties ◽  
Upconversion Nanoparticles ◽  
Physiochemical Properties ◽  
Enhanced Photoluminescence ◽  
Silica Layers

Highly aqueous soluble CaF2:Yb/Er@CaF2@SiO2 upconversion nanoparticles were prepared via metal complex decomposition rout. Gradually surface coating with an inert CaF2 and silica layers greatly enhanced their optical and luminescence properties, which are highly usable for luminescent biolabeling or optical bio-probe etc.

scholarly journals Preparation and luminescence properties of monodisperse silica/aminosilane-coated Y2O3:Yb,Ho upconversion nanoparticles

2011 ◽  
Vol 56 (2) ◽  
pp. 137-141 ◽  
Author(s):  
Tao Pang ◽  
WangHe Cao ◽  
MingMing Xing ◽  
XiXian Luo ◽  
ShuJing Xu
Keyword(s):  
Luminescence Properties ◽  
Upconversion Nanoparticles ◽  
Monodisperse Silica

Luminescence from individual dislocations in II-VI and III-V semiconductors

1991 ◽  
Vol 49 ◽  
pp. 834-835
Author(s):  
J W Steeds
Keyword(s):  
Group Iv ◽  
Luminescence Properties ◽  
Carrier Recombination ◽  
Transmission Electron ◽  
Wide Range ◽  
Basic Physics ◽  
Semiconducting Compounds ◽  
Diamond Group ◽  
Non Destructive ◽  
Technological Significance

There is a wide range of experimental results related to dislocations in diamond, group IV, II-VI, III-V semiconducting compounds, but few of these come from isolated, well-characterized individual dislocations. We are here concerned with only those results obtained in a transmission electron microscope so that the dislocations responsible were individually imaged. The luminescence properties of the dislocations were studied by cathodoluminescence performed at low temperatures (~30K) achieved by liquid helium cooling. Both spectra and monochromatic cathodoluminescence images have been obtained, in some cases as a function of temperature.There are two aspects of this work. One is mainly of technological significance. By understanding the luminescence properties of dislocations in epitaxial structures, future non-destructive evaluation will be enhanced. The second aim is to arrive at a good detailed understanding of the basic physics associated with carrier recombination near dislocations as revealed by local luminescence properties.

Construction of a near-infrared responsive upconversion nanoplatform against hypoxic tumors via NO-enhanced photodynamic therapy

Nanoscale ◽  
2020 ◽  
Vol 12 (14) ◽  
pp. 7875-7887 ◽  
Author(s):  
Ying Lan ◽  
Xiaohui Zhu ◽  
Ming Tang ◽  
Yihan Wu ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Near Infrared ◽  
Upconversion Nanoparticles

A near-infrared (NIR) activated theranostic nanoplatform based on upconversion nanoparticles (UCNPs) is developed in order to overcome the hypoxia-associated resistance in photodynamic therapy by photo-release of NO upon NIR illumination.

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