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带有分子内亲核试剂的近红外香豆素-半菁杂化染料用于可激活荧光和拉曼成像

Near-Infrared Coumarin-Hemicyanine Hybrid Dyes Bearing an Intramolecular Nucleophile for Activatable Fluorescence and Raman Imaging.

作者信息

Fujioka Hiroyoshi, Sakamoto Ryo, Hiramatsu Kotaro, Murakami Yusuke, Masaki Minori, Kawatani Minoru, Matsumoto Satoshi, Kojima Ryosuke, Urano Yasuteru, Kano Hideaki, Kamiya Mako

机构信息

Laboratory for Chemistry and Life Science, Institute of Integrated Research, Institute of Science Tokyo, Kanagawa 226-8501, Japan.

Department of Life Science and Technology, Institute of Science Tokyo, Kanagawa 226-8501, Japan.

出版信息

Anal Chem. 2025 Aug 19;97(32):17589-17597. doi: 10.1021/acs.analchem.5c02714. Epub 2025 Aug 11.


DOI:10.1021/acs.analchem.5c02714
PMID:40785624
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12368833/
Abstract

Coumarin-hemicyanine (CHC) hybrid fluorophores bearing an intramolecular nucleophile have been reported as ratiometric fluorescent probes based on the equilibrium between the π-conjugated open and cyclic closed forms. Here, we report red-shifted CHC derivatives that can serve as scaffold dyes of activated fluorescent probes and activated Raman probes. We prepared a series of cyano-substituted CHC derivatives and found that substitution at C-4 of the coumarin moiety is effective in extending the absorption wavelength. The near-infrared (NIR) emission of these 4CN-CHC derivatives exhibits high tissue penetration. Dual-color imaging with 4CN-CHC enabled ratiometric monitoring of the lysosomal pH changes. Furthermore, the coherent anti-Stokes Raman scattering (CARS) signals of 4CN-CHC derivatives could be regulated by modifying the open/closed equilibrium, and the different patterns of CARS spectra enabled us to perform multicomponent imaging. Thus, these 4CN-CHC derivatives expand the repertoire of functional probes for NIR and multiplexed vibrational imaging.

摘要

据报道,带有分子内亲核试剂的香豆素 - 半菁(CHC)杂化荧光团是基于π共轭开放和环状封闭形式之间的平衡的比率荧光探针。在此,我们报道了红移的CHC衍生物,其可作为活化荧光探针和活化拉曼探针的支架染料。我们制备了一系列氰基取代的CHC衍生物,发现香豆素部分C-4位的取代对于延长吸收波长是有效的。这些4CN-CHC衍生物的近红外(NIR)发射表现出高组织穿透性。用4CN-CHC进行双色成像能够对溶酶体pH变化进行比率监测。此外,4CN-CHC衍生物的相干反斯托克斯拉曼散射(CARS)信号可通过改变开放/封闭平衡来调节,并且不同的CARS光谱模式使我们能够进行多组分成像。因此,这些4CN-CHC衍生物扩展了用于近红外和多重振动成像的功能探针库。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d89/12368833/4803b609d847/ac5c02714_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d89/12368833/e51329f1a13d/ac5c02714_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d89/12368833/4e5a8211b109/ac5c02714_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d89/12368833/4803b609d847/ac5c02714_0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d89/12368833/e51329f1a13d/ac5c02714_0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d89/12368833/4e5a8211b109/ac5c02714_0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/4d89/12368833/4803b609d847/ac5c02714_0003.jpg

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Near-Infrared Coumarin-Hemicyanine Hybrid Dyes Bearing an Intramolecular Nucleophile for Activatable Fluorescence and Raman Imaging.

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本文引用的文献

[1]
Viewing 3D spatial biology with highly-multiplexed Raman imaging: from spectroscopy to biotechnology.

Chem Commun (Camb). 2024-8-13

[2]
Label-free biomedical optical imaging.

Nat Photonics. 2023-12

[3]
A general strategy to develop fluorogenic polymethine dyes for bioimaging.

Nat Chem. 2024-1

[4]
A multi-signal mitochondria-targeted fluorescent probe for simultaneously distinguishing biothiols and realtime visualizing its metabolism in cancer cells and tumor models.

Talanta. 2024-1-15

[5]
Strategies to convert organic fluorophores into red/near-infrared emitting analogues and their utilization in bioimaging probes.

Chem Soc Rev. 2023-9-18

[6]
A near-infrared fluorescent probe based on a hemi-cyanine skeleton for detecting CES1 activity and evaluating pesticide toxicity.

J Mater Chem B. 2023-4-26

[7]
Activatable Raman Probes Utilizing Enzyme-Induced Aggregate Formation for Selective Imaging.

J Am Chem Soc. 2023-4-26

[8]
Label-Free Identification of Spore-Forming Bacteria Using Ultrabroadband Multiplex Coherent Anti-Stokes Raman Scattering Microspectroscopy.

J Phys Chem B. 2023-3-9

[9]
One Stone, Three Birds: A Smart Single Fluorescent Probe for Simultaneous and Discriminative Imaging of Lysosomes, Lipid Droplets, and Mitochondria.

Anal Chem. 2023-2-7

[10]
9-Cyano-10-telluriumpyronin Derivatives as Red-light-activatable Raman Probes.

Chem Asian J. 2023-1-17

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