An efficient approach to the synthesis of water-soluble cyanine dyes using poly(ethylene glycol) as a soluble support
作者:Lin-Ling Jiang、Li-Fang Dou、Bao-Lin Li
DOI:10.1016/j.tetlet.2007.06.060
日期:2007.8
An efficient synthesis approach to unsymmetrical water-soluble cyanine dyes has been established. Loading and activation of sulfoindolenium to poly(ethyleneglycol) (PEG) have been achieved via a simple strategy. Cyanine dyes are released by the attack of heterocyclic carbon nucleophile and the cleavage of PEG-bound hemicyanine. The efficient approach delivers cyanine dyes in high purity without the
New indodicarbocyanine dyes for the biological microchip technology
作者:V. E. Kuznetsova、V. A. Vasiliskov、O. V. Antonova、V. M. Mikhailovich、A. S. Zasedatelev、A. V. Chudinov
DOI:10.1134/s1068162008010184
日期:2008.1
New indodicarbocyanine dyes with the carboxybutyl group in position-3 of the indolenine fragment bearing methyl and sulfonic groups in positions 5 and 7 of the cycle were synthesized in order to find the most effective fluorescent labels for the biological microchip technology. The position of absorption and fluorescence maxima, the total charge of the dye molecule, and water solubility depend on the location and the total amount of methyl and sulfonic groups. The spectral characteristics of the dyes synthesized were determined. The relative fluorescence efficiencies of the dyes at equal concentrations were measured at excitation wavelengths of 635 and 655 nm and emission wavelengths of 670 and 690 nm, respectively.
Bioorthogonally Applicable Fluorogenic Cyanine-Tetrazines for No-Wash Super-Resolution Imaging
作者:Gergely Knorr、Eszter Kozma、Judith M. Schaart、Krisztina Németh、György Török、Péter Kele
DOI:10.1021/acs.bioconjchem.8b00061
日期:2018.4.18
The synthesis, fluorogenic characterization, and labeling application of four tetrazine-quenched cyanine probes with emission maxima in the red–far red range is reported. Fluorescence of the cyanine-cores is quenched via through-bond-energy-transfer (TBET) exerted by a bioorthogonal tetrazine unit. Upon bioorthogonal labeling reaction with cyclooctyne tagged proteins, the quenching effect ceases, and
Labeling reagents and labeled targets, target labeling processes and other processes for using same in nucleic acid determinations and analyses
申请人:——
公开号:US20030225247A1
公开(公告)日:2003-12-04
This invention provides for labeling reagents, labeled targets and processes for preparing labeling reagents. The labeling reagents can take the form of cyanine dyes, xanthene dyes, porphyrin dyes, coumarin dyes or composite dyes. These labeling reagents are useful for labeling probes or targets, including nucleic acids and proteins. These reagents can be usefully applied to protein and nucleic acid probe based assays. They are also applicable to real-time detection processes.