BioAIEgens derived from rosin: how does molecular motion affect their photophysical processes in solid state?

Xu-Min Cai, Yuting Lin, Ying Li, Xinfei Chen, Zaiyu Wang, Xueqian Zhao, Shenlin Huang (), Zheng Zhao () and Ben Zhong Tang ()
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Xu-Min Cai: Nanjing Forestry University
Yuting Lin: Nanjing Forestry University
Ying Li: The Hong Kong University of Science and Technology, Clear Water Bay
Xinfei Chen: Nanjing Forestry University
Zaiyu Wang: The Hong Kong University of Science and Technology, Clear Water Bay
Xueqian Zhao: The Hong Kong University of Science and Technology, Clear Water Bay
Shenlin Huang: Nanjing Forestry University
Zheng Zhao: The Hong Kong University of Science and Technology, Clear Water Bay
Ben Zhong Tang: The Hong Kong University of Science and Technology, Clear Water Bay

Nature Communications, 2021, vol. 12, issue 1, 1-9

Abstract: Abstract The exploration of artificial luminogens with bright emission has been fully developed with the advancement of synthetic chemistry. However, many of them face problems like weakened emission in the aggregated state as well as poor renewability and sustainability. Therefore, the development of renewable and sustainable luminogens with anti-quenching function in the solid state, as well as to unveil the key factors that influence their luminescence behavior become highly significant. Herein, a new class of natural rosin-derived luminogens with aggregation-induced emission property (AIEgens) have been facilely obtained with good biocompatibility and targeted organelle imaging capability as well as photochromic behavior in the solid state. Mechanistic study indicates that the introduction of the alicyclic moiety helps suppress the excited-state molecular motion to enhance the solid-state emission. The current work fundamentally elucidates the role of alicyclic moiety in luminogen design and practically demonstrates a new source to large-scalely obtain biocompatible AIEgens.

Date: 2021
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DOI: 10.1038/s41467-021-22061-y

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