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Open AccessArticle

Synthesis of Samarium-Based Metal Organic Compound Nanoparticles with Polychromatic-Photoluminescence for Bio-Tissue Fluorescence Imaging

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School of Electrical and Automation Engineering, Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing, Nanjing Normal University, Nanjing 210046, China
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Key Laboratory of Dependable Service Computing in Cyber Physical Society of Ministry of Education Chongqing University, College of Microelectronics and Communication Engineering, Chongqing University, Chongqing 400044, China
3
Division of Electrical and Computer Engineering, Louisiana State University, Baton Rouge, Louisiana 70803, USA
*
Authors to whom correspondence should be addressed.
Molecules 2019, 24(20), 3657; https://doi.org/10.3390/molecules24203657
Received: 10 September 2019 / Revised: 30 September 2019 / Accepted: 8 October 2019 / Published: 10 October 2019
The development of nanomaterials with special optical window is critical for clinical applications and the optoelectronic industry. In this work, eight kinds of samarium-based metal organic compound nanoparticles (Sm–Fe, Sm–Ga, Sm–Mn, Sm–Na, Sm–Nb, Sm–W, Sm–Cu, and Sm–Al) were synthesized through a solution method. They show polychromatic-photoluminescence spectra extended from the UV to near-infrared (NIR) region when excited by 280 nm, 380 nm, 480 nm, 580 nm, and 785 nm light. They emit direct white light with respect to UV excitation. Tunable white-to-green fluorescence can be achieved by variation of excitation light around 300–400 nm. When they are excited by a 785 nm light source, they show intense fluorescence around 800–1100 nm, which is promising for NIR bio-imaging. Their application in multicolor ultra-wide-range bio-tissue fluorescence imaging is demonstrated by UV (359–371 nm), blue (450–490 nm), green (540–552 nm), and NIR light (central wavelength = 785 nm) excitation with pig kidney tissue samples.
Keywords: near-infrared fluorescence; bio-tissue; fluorescence imaging; fluorescence probe molecules; UV-Vis-NIR; wide-optical-range imaging near-infrared fluorescence; bio-tissue; fluorescence imaging; fluorescence probe molecules; UV-Vis-NIR; wide-optical-range imaging
MDPI and ACS Style

Wu, Y.; Yang, J.; Lin, Y.; Xu, J. Synthesis of Samarium-Based Metal Organic Compound Nanoparticles with Polychromatic-Photoluminescence for Bio-Tissue Fluorescence Imaging. Molecules 2019, 24, 3657.

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