期刊
BIOCONJUGATE CHEMISTRY
卷 19, 期 12, 页码 2487-2491出版社
AMER CHEMICAL SOC
DOI: 10.1021/bc800417b
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资金
- NIH [1-U01-HL080731]
A facile synthetic route to prepare monofunctional carbocyanine dyes for biological application is developed. Three pentamethine carbocyanine dyes have been successfully modified with a variety of functional groups such as: carboxylic acids, azides, or alkynes. The new dyes are characterized by strong NIR fluorescence emission, high extinction coefficients and good quantum yields. The azide and alkyne dyes have potential utility as components in bioorthogonal labeling schemes via [2 + 3] dipolar cycloaddition click reactions. The application of one derivative, CyAM-5 alkyne, for bioorthogonal labeling is demonstrated. Fluorescence microscopy shows coupling of CyAM-5 alkyne to Chinese hamster ovary (CHO) cells preincubated with azide modified glycans.
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