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Photoactivated In Situ Generation of Near Infrared Cyanines for Spatiotemporally Controlled Fluorescence Imaging in Living Cells. 2021

Gang Song, and Hao Heng, and Jiaqi Wang, and Ronghua Liu, and Yiming Huang, and Huan Lu, and Ke Du, and Fude Feng, and Shu Wang
Department of Polymer Science & Engineering, School of Chemistry and Chemical Engineering, Nanjing University, Jiangsu, Nanjing, 210023, P. R. China.

Photoactivated trimerization of 2,3,3-trimethyl-3H-indole derivatives created near infrared fluorophore Cy5. The synthetic method is air-tolerant, photosensitizer free, metal free, and condensation agent free. Living cells make Cy5 on a time scale of minutes under white light irradiation at a low power intensity, with the monomer as the only exogenous agent. The new method is promising to find applications in cell studies for in situ spatiotemporally controlled fluorescence imaging in living cells.

UI MeSH Term Description Entries
D002232 Carbocyanines Compounds that contain three methine groups. They are frequently used as cationic dyes used for differential staining of biological materials. Carbocyanine
D005456 Fluorescent Dyes Chemicals that emit light after excitation by light. The wave length of the emitted light is usually longer than that of the incident light. Fluorochromes are substances that cause fluorescence in other substances, i.e., dyes used to mark or label other compounds with fluorescent tags. Flourescent Agent,Fluorescent Dye,Fluorescent Probe,Fluorescent Probes,Fluorochrome,Fluorochromes,Fluorogenic Substrates,Fluorescence Agents,Fluorescent Agents,Fluorogenic Substrate,Agents, Fluorescence,Agents, Fluorescent,Dyes, Fluorescent,Probes, Fluorescent,Substrates, Fluorogenic
D006367 HeLa Cells The first continuously cultured human malignant CELL LINE, derived from the cervical carcinoma of Henrietta Lacks. These cells are used for, among other things, VIRUS CULTIVATION and PRECLINICAL DRUG EVALUATION assays. Cell, HeLa,Cells, HeLa,HeLa Cell
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D055668 Photochemical Processes Chemical reactions effected by light. Processes, Photochemical
D061848 Optical Imaging The use of light interaction (scattering, absorption, and fluorescence) with biological tissue to obtain morphologically based information. It includes measuring inherent tissue optical properties such as scattering, absorption, and autofluorescence; or optical properties of exogenous targeted fluorescent molecular probes such as those used in optical MOLECULAR IMAGING, or nontargeted optical CONTRAST AGENTS. Fundus Autofluorescence Imaging,Autofluorescence Imaging,Fluorescence Imaging,Autofluorescence Imaging, Fundus,Fundus Autofluorescence Imagings,Imaging, Autofluorescence,Imaging, Fluorescence,Imaging, Fundus Autofluorescence,Imaging, Optical

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