N-(Di)icosyl-Substituted Benzo[a]phenoxazinium Chlorides: Synthesis and Evaluation as Near-Infrared Membrane Probes
作者:Sarala Naik、Carla M. A. Alves、Paulo J. G. Coutinho、M. Sameiro T. Gonçalves
DOI:10.1002/ejoc.201001579
日期:2011.5
Five benzo[a]phenoxaziniumchlorides containing alkyl chains with twenty carbon atoms at the 5- or 9-positions of the tetracyclic ring were efficiently synthesised and characterised by UV/Vis and NIR spectroscopy. The absorption and emission maxima in ethanol occur in the range 627-641 nm and 645-676 nm, respectively, with quantum yields varying from 0.14 to 0.38. Preliminary photophysical studies
Clickable fluorophores for biological labeling—with or without copper
作者:Péter Kele、Xiaohua Li、Martin Link、Krisztina Nagy、András Herner、Krisztián Lőrincz、Szabolcs Béni、Otto S. Wolfbeis
DOI:10.1039/b907741c
日期:——
for fluorescentlabeling of biomolecules is presented by examples on model frameworks representing major biopolymer building blocks. The versatility of these dyes is presented in cell labeling experiments as well as by labeling the azide modified surface glycans of CHO-cells either by copper catalyzed or copper-free clickreaction. These dyes are expected to have a large variety of applications in (bio)orthogonal
The present invention relates to chromophores for selective staining of cells
or cell parts comprising a fluorescent chromophore of the general formulae I.
The invention further comprises a method for cell sorting, a method for cell targeting,
as well as a method for cell identification.
A fluorescence sustained probe to reveal the micro-environment polarity change during the protein aggregation process.
一种荧光持续探针,用于揭示蛋白质聚集过程中微环境极性变化。
2-Hydroxyoxanilic acid derivatives and salts, their preparation and pharmaceutical compositions containing them
申请人:YAMANOUCHI PHARMACEUTICAL CO. LTD.
公开号:EP0030436A1
公开(公告)日:1981-06-17
2-hydroxyoxanilic acid derivatives shown by the following formula
and salts thereof possess an immunoregulatory action and can be useful as antiallergic agents, antiasthmatics, antirheumatics, carcinostatic agents, therapeutic agents for autoimmune disease, and suppressants of rejection in tissue transplants and skin grafts. They can be made from the corresponding aminophenols and oxalylic acids.