scholarly journals A Pr3+ doping strategy for simultaneously optimizing the size and near infrared persistent luminescence of ZGGO:Cr3+ nanoparticles for potential bio-imaging

2017 ◽  
Vol 19 (36) ◽  
pp. 24513-24521 ◽  
Author(s):  
Zheng Gong ◽  
Yuxue Liu ◽  
Jian Yang ◽  
Duanting Yan ◽  
Hancheng Zhu ◽  
...  
Keyword(s):  
Near Infrared ◽  
Persistent Luminescence ◽  
Deep Tissue ◽  
Bio Imaging

The improved near infrared persistent luminescence of ZGGO:Cr3+ nanoparticles achieved by adopting a Pr3+ doping strategy facilitates deep tissue bio-imaging.

Native point defect modulated Cr3+–LaAlO3 as an in vitro excited contrast medium for in vivo near-infrared persistent deep-tissue bio-imaging

2021 ◽  
Vol 57 (74) ◽  
pp. 9366-9369
Author(s):  
Lu Lu ◽  
Mingzi Sun ◽  
Tong Wu ◽  
Qiuyang Lu ◽  
Bolong Huang
Keyword(s):  
Contrast Medium ◽  
Decay Time ◽  
Luminescence Intensity ◽  
Near Infrared ◽  
Persistent Luminescence ◽  
Deep Tissue ◽  
Native Point Defect ◽  
Bio Imaging

A comprehensive defected-assisted mechanism for persistent luminescence in the NIR-II and NIR-III windows has been proposed in Cr-doped LaAlO3 nanoparticles, where both decay time and luminescence intensity can be flexibly tuned by different defects.

Near-infrared persistent luminescence hollow mesoporous nanospheres for drug delivery and in vivo renewable imaging

2016 ◽  
Vol 4 (48) ◽  
pp. 7845-7851 ◽  
Author(s):  
Junpeng Shi ◽  
Meng Sun ◽  
Xia Sun ◽  
Hongwu Zhang
Keyword(s):  
Drug Delivery ◽  
Near Infrared ◽  
High Sensitivity ◽  
Drug Carriers ◽  
Template Method ◽  
Persistent Luminescence ◽  
Deep Tissue ◽  
Large Capacity

Near-infrared persistent luminescence hollow mesoporous nanospheres have been synthesized via a template method. These nanospheres can be used as large capacity drug carriers and realize super long-term and high sensitivity tracking of drug delivery in deep tissue.

A vacuum-annealing strategy for improving near-infrared super long persistent luminescence in Cr3+ doped zinc gallogermanate nanoparticles for bio-imaging

2016 ◽  
Vol 45 (4) ◽  
pp. 1364-1372 ◽  
Author(s):  
Jian Yang ◽  
Yuxue Liu ◽  
Duanting Yan ◽  
Hancheng Zhu ◽  
Chunguang Liu ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Near Infrared ◽  
Vacuum Annealing ◽  
Persistent Luminescence ◽  
Long Afterglow ◽  
Bio Imaging

Novel ZGGO:Cr3+ nanoparticles with NIR super long afterglow were prepared via a hydrothermal method and a subsequent vacuum-annealing strategy.

scholarly journals Synthesis and Biomedical Applications of Lanthanides-Doped Persistent Luminescence Phosphors With NIR Emissions

2020 ◽  
Vol 8 ◽  
Author(s):  
Xinyuan Qin ◽  
Jie Wang ◽  
Quan Yuan
Keyword(s):  
Energy Transfer ◽  
Light Scattering ◽  
Biomedical Applications ◽  
Near Infrared ◽  
Crystal Defects ◽  
Research Progress ◽  
Persistent Luminescence ◽  
Deep Tissue ◽  
Reduced Light ◽  
Transfer Channels

Persistent luminescence phosphors (PLPs) are largely used in biomedical areas owing to their unique advantages in reducing the autofluorescence and light-scattering interference from tissues. Moreover, PLPs with long-lived luminescence in the near-infrared (NIR) region are able to be applied in deep-tissue bioimaging or therapy due to the reduced light absorption of tissues in NIR region. Because of their abundant election levels and energy transfer channels, lanthanides are widely doped in PLPs for the generation of NIR persistent emissions. In addition, the crystal defects introduced by lanthanides-doping can serves as charge traps in PLPs, which contributes to the enhancement of persistent luminescence intensity and the increase of persistent time. In this paper, the research progress in the synthesis and biomedical applications of lanthanides-doped PLPs with NIR emissions are systematically summarized, which can provide instructions for the design and applications of PLPs in the future.

scholarly journals Near-infrared long persistent luminescence of Er3+ in garnet for the third bio-imaging window

2016 ◽  
Vol 4 (47) ◽  
pp. 11096-11103 ◽  
Author(s):  
Jian Xu ◽  
Daisuke Murata ◽  
Jumpei Ueda ◽  
Setsuhisa Tanabe
Keyword(s):  
Energy Transfer ◽  
Near Infrared ◽  
Persistent Luminescence ◽  
The Third ◽  
Bio Imaging

By utilizing efficient persistent energy transfer from Ce3+ to Er3+, we have successfully developed a novel garnet persistent phosphor of Y3Al2Ga3O12 doped with Er3+, Ce3+, Cr3+ ions (YAGG:Er–Ce–Cr) exhibiting long (>10 h) near-infrared (NIR) persistent luminescence (PersL) in the broad range from 1450 nm to 1670 nm due to the typical Er3+:4I13/2 → 4I15/2 transition in garnet.

Low-dose X-ray-stimulated LaGaO3:Sb,Cr near-infrared persistent luminescence nanoparticles for deep-tissue and renewable in vivo bioimaging

2021 ◽  
Vol 404 ◽  
pp. 127133 ◽  
Author(s):  
Bo-Mei Liu ◽  
Rui Zou ◽  
Sun-Qi Lou ◽  
Yi-Fan Gao ◽  
Li Ma ◽  
...  
Keyword(s):  
Low Dose ◽  
Near Infrared ◽  
Persistent Luminescence ◽  
Deep Tissue ◽  
X Ray

scholarly journals Photostimulable Near-Infrared Persistent Luminescent Nanoprobes for Ultrasensitive and Longitudinal Deep-Tissue Bio-Imaging

Theranostics ◽  
2014 ◽  
Vol 4 (11) ◽  
pp. 1112-1122 ◽  
Author(s):  
Yen-Jun Chuang ◽  
Zipeng Zhen ◽  
Fan Zhang ◽  
Feng Liu ◽  
Jyoti P. Mishra ◽  
...  
Keyword(s):  
Near Infrared ◽  
Deep Tissue ◽  
Bio Imaging

Responsive optical probes for deep-tissue imaging: Photoacoustics and second near-infrared fluorescence

2021 ◽  
Vol 173 ◽  
pp. 141-163
Author(s):  
Fei Ding ◽  
Jing Feng ◽  
Xueli Zhang ◽  
Jielin Sun ◽  
Chunhai Fan ◽  
...  
Keyword(s):  
Near Infrared ◽  
Tissue Imaging ◽  
Deep Tissue ◽  
Optical Probes ◽  
Near Infrared Fluorescence ◽  
Deep Tissue Imaging

scholarly journals Uniform Spheres of α-NaYF4:RE3+ (RE=Eu, Tb, Ce, Er, and Tm): Template-Free Synthesis, Multi-Color Photoluminescence, and Their Application in Cellular Imaging

Crystals ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 119
Author(s):  
Xiaofeng Fan ◽  
Laiqin Gu ◽  
Yiling Hu ◽  
Qi Zhu
Keyword(s):  
Near Infrared ◽  
Infrared Emission ◽  
Particle Sizes ◽  
Hydrothermal Processing ◽  
High Brightness ◽  
Luminescent Probes ◽  
Bio Imaging ◽  
Template Free ◽  
Near Infrared Emission

Uniformly dispersed luminescent probes with a high brightness and high resolution are desired in bio imaging fields. Here, ~100 nm sized and well-dispersed spheres of RE3+ doped α-NaYF4 (rare earth (RE) = Eu, Tb, Ce, Er, and Tm) have been facile synthesized through hydrothermal processing in the absence of a template, followed by a proper annealing. The processing window of the cubic structured spheres is wide, because the hydrothermal products are independent of the processing conditions, including reaction time and temperature. The original morphology and crystal structure can be well retained with a calcination temperature up to 600 °C. However, calcination gives rise to a reduction of particle sizes, as a result of the crystallite growth and densification. Under ultraviolet radiation, α-NaYF4:RE3+ spheres show characteristic f-f emissions of RE3+ (RE = Eu, Tb, Ce, Er, and Tm), and exhibit orange red, green, ultraviolet (UV), blue green, and blue emissions, respectively. Mainly because of the near-infrared emission at ~697 nm (5D0→7F4 transitions of Eu3+), the successful imaging of macrophages was achieved by NH2-NaYF4:Eu3+ probes, indicating their excellent imaging capacity for cells in vitro.

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