Research Progress on Rare Earth Nanocrystals for In Vivo Imaging and Sensing in Near Infrared Region

2019 ◽  
Vol 77 (12) ◽  
pp. 1239 ◽  
Author(s):  
Lin Xiong ◽  
Yong Fan ◽  
Fan Zhang
2016 ◽  
Vol 4 (37) ◽  
pp. 6271-6278 ◽  
Author(s):  
Jun Chen ◽  
Yifei Kong ◽  
Yan Wo ◽  
Hongwei Fang ◽  
Yunxia Li ◽  
...  

Effectivein vivofluorescence imaging based on β-LG-Ag2S quantum dots at the second near-infrared region.


2020 ◽  
Vol 56 (78) ◽  
pp. 11681-11684
Author(s):  
Jun Li ◽  
Yun Ma ◽  
Suyi Liu ◽  
Zhu Mao ◽  
Zhenguo Chi ◽  
...  

A novel soft salt complex-based near infrared probe was successfully developed for application in in vivo imaging for the first time.


2012 ◽  
Vol 51 (39) ◽  
pp. 9818-9821 ◽  
Author(s):  
Guosong Hong ◽  
Joshua T. Robinson ◽  
Yejun Zhang ◽  
Shuo Diao ◽  
Alexander L. Antaris ◽  
...  

1985 ◽  
Vol 40 (7) ◽  
pp. 699-705 ◽  
Author(s):  
H.-D. Autenrieth ◽  
B. Kottmann ◽  
S. Kemmler-Sack

By activation of the new host lattice Ca3La2Te2O12 with trivalent rare earth ions an emission in the visible (Ln3+=Sm, Eu, Tb, Dy, Ho, Er, Tm) or near infrared region (Nd, Ho, Er, Tm, Yb) is observed. Energy transfer from Nd3+ to Yb3+ , from Er3+, Yb3+ to Ho3+ and from Yb3+ to Tm3+ has been found to occur. The excitation, emission and diffuse reflectance spectra are analyzed.


2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Zhuxin Wei ◽  
Guangxin Duan ◽  
Baoxing Huang ◽  
Shanshan Qiu ◽  
Dandan Zhou ◽  
...  

Abstract Background Fluorescence imaging as the beacon for optical navigation has wildly developed in preclinical studies due to its prominent advantages, including noninvasiveness and superior temporal resolution. However, the traditional optical methods based on ultraviolet (UV, 200–400 nm) and visible light (Vis, 400–650 nm) limited by their low penetration, signal-to-noise ratio, and high background auto-fluorescence interference. Therefore, the development of near-infrared-II (NIR-II 1000–1700 nm) nanoprobe attracted significant attentions toward in vivo imaging. Regrettably, most of the NIR-II fluorescence probes, especially for inorganic NPs, were hardly excreted from the reticuloendothelial system (RES), yielding the anonymous long-term circulatory safety issue. Results Here, we develop a facile strategy for the fabrication of Nd3+-doped rare-earth core–shell nanoparticles (Nd-RENPs), NaGdF4:5%Nd@NaLuF4, with strong emission in the NIR-II window. What’s more, the Nd-RENPs could be quickly eliminated from the hepatobiliary pathway, reducing the potential risk with the long-term retention in the RES. Further, the Nd-RENPs are successfully utilized for NIR-II in vivo imaging and magnetic resonance imaging (MRI) contrast agents, enabling the precise detection of breast cancer. Conclusions The rationally designed Nd-RENPs nanoprobes manifest rapid-clearance property revealing the potential application toward the noninvasive preoperative imaging of tumor lesions and real-time intra-operative supervision. Graphical abstract


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