Volume 137, Issue 9 e202420912
Forschungsartikel

Boosting One- and Two-Photon Excited Fluorescence of Interpenetrated Tetraphenylethene-Based Metal–Organic Frameworks (TPE-MOFs) by Linker Installation

Huihui He

Huihui He

Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350017, China

State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China

These authors contributed equally to this work.

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Ji Li

Ji Li

Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350017, China

These authors contributed equally to this work.

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Jiayi Zhuang

Jiayi Zhuang

MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, China

These authors contributed equally to this work.

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Jinyi Huang

Jinyi Huang

Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350017, China

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Yuxuan Meng

Yuxuan Meng

Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350017, China

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Xi Lin

Xi Lin

Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350017, China

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Prof. Dr. Zhangwen Wei

Prof. Dr. Zhangwen Wei

MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, China

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Prof. Dr. Liangliang Zhang

Corresponding Author

Prof. Dr. Liangliang Zhang

Strait Institute of Flexible Electronics (SIFE, Future Technologies), Fujian Normal University and Strait Laboratory of Flexible Electronics (SLoFE), Fuzhou 350017, China

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

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Prof. Dr. Yu Fang

Corresponding Author

Prof. Dr. Yu Fang

State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, Hunan, 410082, China

State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

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Prof. Dr. Mei Pan

Corresponding Author

Prof. Dr. Mei Pan

MOE Laboratory of Bioinorganic and Synthetic Chemistry, Lehn Institute of Functional Materials, School of Chemistry, Sun Yat-Sen University, Guangzhou 510006, China

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First published: 12 January 2025

Abstract

Immobilizing organic chromophores within the rigid framework of metal-organic frameworks (MOFs) augments fluorescence by effectively curtailing molecular motions. Yet, the substantial interspaces and free volumes inherent to MOFs can undermine photoluminescence efficiency, as they partially constrain intramolecular dynamics. In this study, we achieved optimization of both one- and two-photon excited fluorescence by incorporating linkers into an interpenetrated tetraphenylethene-based MOF (TPE-MOF). This linker installation strategy enables fine-tuning of both crystal packing density and ligand conformations. Strikingly, the desolvated MOFs exhibit remarkable two-photon absorption (TPA) cross-sections, reaching an impressive 8801 GM. Consequently, these materials demonstrate exceptional performance in one- and two-photon excited cellular imaging of HepG2 cells. Our work introduces an innovative approach to enhancing two-photon excited fluorescence (TPEF) and broadens the scope of research into one- and two-photon excited fluorescence (1/2 PEF).

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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