scholarly journals Luminescent biomimetic citrate-coated europium-doped carbonated apatite nanoparticles for use in bioimaging: physico-chemistry and cytocompatibility

RSC Advances ◽  
2018 ◽  
Vol 8 (5) ◽  
pp. 2385-2397 ◽  
Author(s):  
Jaime Gómez-Morales ◽  
Cristóbal Verdugo-Escamilla ◽  
Raquel Fernández-Penas ◽  
Carmen María Parra-Milla ◽  
Christophe Drouet ◽  
...  
Keyword(s):  
Luminescence Intensity ◽  
Tissue Imaging ◽  
Carbonated Apatite ◽  
Cell Tissue ◽  
High Luminescence Intensity

Biomimetic citrate-coated europium doped carbonated apatite nanoparticles show a high luminescence intensity and cytocompatibility for uses in cell/tissue imaging.

Photoluminescence Properties of Ru(bpy)32+ in TEMPO-Oxidized Cellulose Nanofiber Films

2017 ◽  
Vol 900 ◽  
pp. 146-149
Author(s):  
Lu Yang Song ◽  
Kotaro Takahashi ◽  
Takeshi Higuchi ◽  
Tadahiro Aita
Keyword(s):  
Aqueous Solution ◽  
Polymer Films ◽  
Luminescence Intensity ◽  
Cellulose Nanofiber ◽  
Luminescence Spectra ◽  
Oxidized Cellulose ◽  
Photoluminescence Properties ◽  
Decay Measurement ◽  
Cnf Films ◽  
High Luminescence Intensity

In this work, photoluminescent properties of Ru (bpy)32+ incorporated in cellulose nanofiber (CNF) film was investigated by comparing with those in polyvinyl alcohol (PVA) and polyacrylic acid (PAA) films. In the polymer films, the luminescence intensity of Ru (bpy)32+ was high and λmax of luminescence spectra was blue-shifted compared with those in aqueous solution. The high luminescence intensity was also observed in cellulose nanofiber (CNF) films but the spectrum was red-shifted. Luminescence decay measurement showed that the decays in polymer films were exponential and the lifetimes were far longer than that in aqueous solution. On the other hand, in CNF films, the decays were composed of fast and slow ones. The luminescence properties of Ru (bpy)32+ in CNF films were discussed based on the stabilization of excited state and the dispersibility of Ru (bpy)32+ in the films.

Integrated Strategy for High Luminescence Intensity of Upconversion Nanocrystals

ACS Photonics ◽  
2017 ◽  
Vol 4 (8) ◽  
pp. 1930-1936 ◽  
Author(s):  
Yue Yang ◽  
Yingbin Zhu ◽  
Jiajia Zhou ◽  
Fan Wang ◽  
Jianrong Qiu
Keyword(s):  
Luminescence Intensity ◽  
Integrated Strategy ◽  
Upconversion Nanocrystals ◽  
High Luminescence Intensity

Long-lived photoluminescence and high quantum yield of copper(ii) complexes with novel nanostructures

RSC Advances ◽  
2015 ◽  
Vol 5 (122) ◽  
pp. 101155-101161 ◽  
Author(s):  
Wei Chuan Zhang ◽  
Xiaoming Lu
Keyword(s):  
Quantum Yield ◽  
Luminescence Intensity ◽  
High Quantum Yield ◽  
High Quantum ◽  
High Luminescence Intensity

Four novel nano bipy-based copper(ii) complexes with high luminescence intensity, long-lived photoluminescence and quantum yield.

Fluorescent polymeric assemblies as stimuli-responsive vehicles for drug controlled release and cell/tissue imaging

2014 ◽  
Vol 26 (2) ◽  
pp. 025103 ◽  
Author(s):  
Ying Chang ◽  
Yang Li ◽  
Shirong Yu ◽  
Jie Mao ◽  
Cheng Liu ◽  
...  
Keyword(s):  
Controlled Release ◽  
Tissue Imaging ◽  
Stimuli Responsive ◽  
Drug Controlled Release ◽  
Cell Tissue ◽  
Polymeric Assemblies

scholarly journals Multispectral upconversion luminescence intensity ratios for ascertaining the tissue imaging depth

Nanoscale ◽  
2014 ◽  
Vol 6 (15) ◽  
pp. 9257-9263 ◽  
Author(s):  
Kai Liu ◽  
Yu Wang ◽  
Xianggui Kong ◽  
Xiaomin Liu ◽  
Youlin Zhang ◽  
...  
Keyword(s):  
Luminescence Intensity ◽  
Upconversion Luminescence ◽  
Upconversion Emission ◽  
Tissue Imaging ◽  
Intensity Ratios ◽  
Imaging Depth

Ascertaining the tissue imaging depth from upconversion emission of nanoparticles.

scholarly journals Effects of Particle Size and Type of Alumina on the Morphology and Photoluminescence Properties of : Phosphor

2009 ◽  
Vol 2009 ◽  
pp. 1-4 ◽  
Author(s):  
Hom Nath Luitel ◽  
Takanori Watari ◽  
Toshio Torikai ◽  
Mitsunori Yada
Keyword(s):  
Particle Size ◽  
Luminescence Intensity ◽  
Raw Material ◽  
Particle Sizes ◽  
Photoluminescence Properties ◽  
Sem Observation ◽  
Long Afterglow ◽  
High Luminescence Intensity ◽  
Initial Intensity ◽  
Observation Results

: phosphor with high luminescence intensity and long afterglow duration was synthesized using 1.0 m (), 0.1 m (), and 0.05 m () particle sizes of . SEM observation results showed that spike-like thin particles were formed when 0.05 m - was used as raw material. Hexagonal thick particles were observed when 0.1 m - was used. But irregular, thin particles were observed while using 1 m -. Photoluminescence measurements showed that both the initial intensity and the long persistency were much higher for the phosphor prepared using - of 0.05 m particle size.

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