Polyyne bridged AIE luminogens with red emission: design, synthesis, properties and applications

Zheng Zhao; Huifang Su; Pengfei Zhang; Yuanjing Cai; Ryan T.K. Kwok; Yuncong Chen; Zikai He; Xinggui Gu; Xuewen He; Herman H.Y. Sung; Ian D. Willimas; Jacky W.Y. Lam; Zhenfeng Zhang; Ben Zhong Tang

doi:10.1039/c7tb00112f

Polyyne bridged AIE luminogens with red emission: design, synthesis, properties and applications

Zheng Zhao, Huifang Su, Pengfei Zhang, Yuanjing Cai, Ryan T.K. Kwok, Yuncong Chen, Zikai He, Xinggui Gu, Xuewen He, Herman H.Y. Sung, Ian D. Willimas, Jacky W.Y. Lam, Zhenfeng Zhang^*, Ben Zhong Tang

^*Corresponding author for this work

Research output: Contribution to journal › Journal Article › peer-review

59 Citations (Scopus)

Abstract

Construction of a donor-acceptor (D-A) structure and extension of π-conjugation are the commonly used strategies to shift the emission of luminophores to the red region. However, molecules with high conjugation and a strong D-A effect tend to show weak emission due to the severe π-π interactions and twisted intramolecular charge transfer (TICT) effects. The turn-on characteristic of AIE luminogens (AIEgens) will also be lost due to the conjugation-enhanced emission in the solution state. Herein, a polyyne-bridged AIE luminogen (2TPE-4E) with long wavelength absorption and red emission has been afforded. Despite its large π-conjugation, 2TPE-4E suffers from no emission quenching resulted from strong π-π interactions and twisted intramolecular charge transfer effects. The strong red emission and the high photostability of 2TPE-4E inspired us to use it for targeted-imaging of cancer cells and monitoring the receptor mediated endocytosis process.

Original language	English
Pages (from-to)	1650-1657
Number of pages	8
Journal	Journal of Materials Chemistry B
Volume	5
Issue number	8
DOIs	https://doi.org/10.1039/c7tb00112f
Publication status	Published - 2017

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© The Royal Society of Chemistry.

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@article{6006d39981a542aca2284b4783462567,

title = "Polyyne bridged AIE luminogens with red emission: design, synthesis, properties and applications",

abstract = "Construction of a donor-acceptor (D-A) structure and extension of π-conjugation are the commonly used strategies to shift the emission of luminophores to the red region. However, molecules with high conjugation and a strong D-A effect tend to show weak emission due to the severe π-π interactions and twisted intramolecular charge transfer (TICT) effects. The turn-on characteristic of AIE luminogens (AIEgens) will also be lost due to the conjugation-enhanced emission in the solution state. Herein, a polyyne-bridged AIE luminogen (2TPE-4E) with long wavelength absorption and red emission has been afforded. Despite its large π-conjugation, 2TPE-4E suffers from no emission quenching resulted from strong π-π interactions and twisted intramolecular charge transfer effects. The strong red emission and the high photostability of 2TPE-4E inspired us to use it for targeted-imaging of cancer cells and monitoring the receptor mediated endocytosis process.",

author = "Zheng Zhao and Huifang Su and Pengfei Zhang and Yuanjing Cai and Kwok, \{Ryan T.K.\} and Yuncong Chen and Zikai He and Xinggui Gu and Xuewen He and Sung, \{Herman H.Y.\} and Willimas, \{Ian D.\} and Lam, \{Jacky W.Y.\} and Zhenfeng Zhang and Tang, \{Ben Zhong\}",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

year = "2017",

doi = "10.1039/c7tb00112f",

language = "English",

volume = "5",

pages = "1650--1657",

journal = "Journal of Materials Chemistry B",

issn = "2050-7518",

number = "8",

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TY - JOUR

T1 - Polyyne bridged AIE luminogens with red emission

T2 - design, synthesis, properties and applications

AU - Zhao, Zheng

AU - Su, Huifang

AU - Zhang, Pengfei

AU - Cai, Yuanjing

AU - Kwok, Ryan T.K.

AU - Chen, Yuncong

AU - He, Zikai

AU - Gu, Xinggui

AU - He, Xuewen

AU - Sung, Herman H.Y.

AU - Willimas, Ian D.

AU - Lam, Jacky W.Y.

AU - Zhang, Zhenfeng

AU - Tang, Ben Zhong

PY - 2017

Y1 - 2017

N2 - Construction of a donor-acceptor (D-A) structure and extension of π-conjugation are the commonly used strategies to shift the emission of luminophores to the red region. However, molecules with high conjugation and a strong D-A effect tend to show weak emission due to the severe π-π interactions and twisted intramolecular charge transfer (TICT) effects. The turn-on characteristic of AIE luminogens (AIEgens) will also be lost due to the conjugation-enhanced emission in the solution state. Herein, a polyyne-bridged AIE luminogen (2TPE-4E) with long wavelength absorption and red emission has been afforded. Despite its large π-conjugation, 2TPE-4E suffers from no emission quenching resulted from strong π-π interactions and twisted intramolecular charge transfer effects. The strong red emission and the high photostability of 2TPE-4E inspired us to use it for targeted-imaging of cancer cells and monitoring the receptor mediated endocytosis process.

AB - Construction of a donor-acceptor (D-A) structure and extension of π-conjugation are the commonly used strategies to shift the emission of luminophores to the red region. However, molecules with high conjugation and a strong D-A effect tend to show weak emission due to the severe π-π interactions and twisted intramolecular charge transfer (TICT) effects. The turn-on characteristic of AIE luminogens (AIEgens) will also be lost due to the conjugation-enhanced emission in the solution state. Herein, a polyyne-bridged AIE luminogen (2TPE-4E) with long wavelength absorption and red emission has been afforded. Despite its large π-conjugation, 2TPE-4E suffers from no emission quenching resulted from strong π-π interactions and twisted intramolecular charge transfer effects. The strong red emission and the high photostability of 2TPE-4E inspired us to use it for targeted-imaging of cancer cells and monitoring the receptor mediated endocytosis process.

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000395921100013

UR - https://openalex.org/W2581662325

UR - https://www.scopus.com/pages/publications/85013749184

U2 - 10.1039/c7tb00112f

DO - 10.1039/c7tb00112f

M3 - Journal Article

C2 - 32263937

SN - 2050-7518

VL - 5

SP - 1650

EP - 1657

JO - Journal of Materials Chemistry B

JF - Journal of Materials Chemistry B

IS - 8

ER -

Polyyne bridged AIE luminogens with red emission: design, synthesis, properties and applications

Abstract

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