Synthesizing Ag+: MgS, Ag+: Nb2S5, Sm3+: Y2S3, Sm3+:Er2S3, and Sm3+:ZrS2 Compound Nanoparticles for Multicolor Fluorescence Imaging of Biotissues

Zongan Li; Yongzhe Li; Yingcheng Lin; Muhammad Zulfiker Alam; Ye Wu

doi:10.1021/acsomega.0c02788

Synthesizing Ag⁺: MgS, Ag⁺: Nb₂S₅, Sm³⁺: Y₂S₃, Sm³⁺:Er₂S₃, and Sm³⁺:ZrS₂ Compound Nanoparticles for Multicolor Fluorescence Imaging of Biotissues

ACS Omega. 2020 Dec 14;5(51):32868-32876. doi: 10.1021/acsomega.0c02788. eCollection 2020 Dec 29.

Authors

Zongan Li^{1

2}, Yongzhe Li¹, Yingcheng Lin³, Muhammad Zulfiker Alam⁴, Ye Wu^{1

5}

Affiliations

¹ School of Electrical and Automation Engineering, Jiangsu Key Laboratory of 3D Printing Equipment and Manufacturing, Nanjing Normal University, Nanjing, Jiangsu 210046, China.
² Nanjing Industry Institute for Advanced Intelligent Equipment, Nanjing, Jiangsu 210042, China.
³ 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.
⁴ Department of Electrical and Computer Engineering, Queen's University, Kingston, Ontario K7L 3N6, Canada.
⁵ Anhui Key Laboratory of Photoelectric-Magnetic Functional Materials, Anhui Key Laboratory of Functional Coordination, Anqing, Anhui 246133, China.

Abstract

Development of the fluorophores whose fluorescence bands can be flexibly selected is of great interest for biotissue imaging. Compounds of Ag⁺:MgS, Ag⁺:Nb₂S₅, Sm³⁺:Y₂S₃, Sm³⁺:Er₂S₃, and Sm³⁺:ZrS₂ were obtained through new chemical synthesis. They were characterized by X-ray photoelectron spectroscopy, X-ray diffraction spectroscopy, and transmission electron microscopy. They revealed polychromatic-photoluminescence spectra when excited by 280, 380, 480, 580, 680, and 785 nm light. Especially, near-infrared emission ranging from 800-1100 nm was found upon 785 nm light excitation. A band model was proposed to explain transitions responsible for the observed components of emission. Their broad fluorescence spectra cover from the ultraviolet to near-infrared spectral range. Their ability of emitting wide-range fluorescence was utilized for multicolor fluorescence imaging of biotissues, as demonstrated by pig-kidney tissue samples.