Platinum complexes with aggregation-induced emission

Yang, Sheng-Yi; Chen, Yingying; Kwok, Ryan T. K.; Lam, Jacky W. Y.; Tang, Ben Zhong

doi:10.1039/d4cs00218k

Chem. Soc. Rev.

2024

DOI: 10.1039/d4cs00218k

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Platinum complexes with aggregation-induced emission

Sheng-Yi Yang,

Yingying Chen,

Ryan T. K. Kwok

et al.

Abstract: Recent advances in the design of AIE platinum complexes: structural regulation strategies, mechanisms, and applications.

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Cited by 16 publications

References 117 publications

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Bioinspired Passive Cooling Hydrogel for Visualizing Hygroscopicity and Desorption Process

Yang,

Zhou,

et al. 2024

Adv Funct Materials

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Self‐hygroscopic hydrogels, characterized by high evaporation enthalpy, cooling efficiency, and self‐regulating properties, have garnered significant attention. However, most current research focuses on enhancing the hygroscopic and desorption performance, often overlooking the importance of monitoring the self‐regulation process, which limits its further application. Advanced visualization technologies, such as in situ electrical impedance tomography, low‐field nuclear magnetic resonance, and hyperspectral imaging, offer potential insights into this behavior, yet they often require additional devices, incur high costs, and involve complex sample preparation processes. Therefore, drawing inspiration from nature, humidity‐color‐sensitive hydrogels (HCSHs) strategy is proposed for visualized cooling. Benefiting from the strong polar responsiveness of the aggregation‐induced emission (AIE) molecules, the hydrogel's fluorescence significantly changes with varying interior water content, thereby its self‐regulation process is monitored easily. Further, the obtained hydrogel could be applied in the electronic device cooling owing to the polymer skeletons’ high swelling ratio, strong adhesion, and excellent self‐hygroscopic properties. This strategy overcomes current limitations in the visual technology of self‐hygroscopic materials and provides new insights into intelligent thermal management for electronic devices.

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Bioinspired Passive Cooling Hydrogel for Visualizing Hygroscopicity and Desorption Process

Yang,

Zhou,

et al. 2024

Adv Funct Materials

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Complexity made easy: Aggregation‐induced emission small molecules for cancer diagnosis and phototherapies

Chen,

Yuan

et al. 2024

Aggregate

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Phototheranostics has garnered sustained attention due to its significant potential for revolutionizing conventional cancer treatment strategies. While being one of the most commonly employed strategies for constructing phototheranostic systems by engineering the integration of photosensitizers (PSs) into nanosystems, nano‐PSs face challenges including complexity in the preparation process, low delivery efficiency, and potential toxicity issues. Contrastingly, the burgeoning popularity of small molecule PSs characterized by aggregation‐induced emission (AIE) has become evident in the arena of cancer phototheranostics. This preference is underscored by their well‐defined structures, adjustable photophysical properties, and low toxicity. Therefore, acquiring profound insights into the pioneering strides achievable through a solitary small molecule PS with AIE in tumor phototheranostics is of paramount scientific significance. In this review, we will discuss the recent progress of small molecule PSs with AIE properties in cancer diagnosis and phototherapies with representative examples, guided by the ethos of “Complexity made easy”. We also look forward to the future development direction of AIE small molecules, with a central objective of advancing cancer research through a focal emphasis on simplicity, expeditiousness, and safety.

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Crosslink‐Enhanced Emission‐Dominated Design Strategy for Constructing Self‐Protective Carbonized Polymer Dots With Near‐Infrared Room‐Temperature Phosphorescence

Zheng,

Tao,

Zhao

et al. 2024

Angewandte Chemie

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Self‐protective carbonized polymer dots (CPDs) with advantageous crosslinked nano‐structures have attracted considerable attention in metal‐free room temperature phosphorescence (RTP) materials, whereas, their RTP emissions are still limited to short wavelength. Expanding their RTP emission to Near‐Infrared (NIR) range is attractive but suffers from the difficulties in constructing narrow energy levels and inhibiting intense nonradiative decay. Herein, a crosslink‐enhanced emission (CEE)‐dominated construction strategy was proposed, achieving desired NIR RTP (710 nm) in self‐protective CPDs for the first time. Structural factors, i.e.，crosslinking (covalent‐bond CEE), conjugation (conjugated amine with bridging N‐H and C=C group), and steric hindrance (confined‐domain CEE), were confirmed indispensable for triggering NIR RTP emission in CPDs. Contrast experiments and theoretical calculations further revealed the rationality of the design strategy originating from CEE in terms of promoting the narrow energy level emission of triplet excitons and inhibiting the nonradiative quenching. This work not only firstly achieves NIR RTP in self‐protective CPDs, but also helps understand the NIR RTP origin to further guide the synthesis of diverse CPDs with efficient long‐wavelength RTP emission.

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Platinum complexes with aggregation-induced emission

Abstract: Recent advances in the design of AIE platinum complexes: structural regulation strategies, mechanisms, and applications.

Cited by 16 publications

References 117 publications

Bioinspired Passive Cooling Hydrogel for Visualizing Hygroscopicity and Desorption Process

Bioinspired Passive Cooling Hydrogel for Visualizing Hygroscopicity and Desorption Process

Complexity made easy: Aggregation‐induced emission small molecules for cancer diagnosis and phototherapies

Crosslink‐Enhanced Emission‐Dominated Design Strategy for Constructing Self‐Protective Carbonized Polymer Dots With Near‐Infrared Room‐Temperature Phosphorescence

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