[EN] INDOLINIUM-DERIVED THIOL/DISULFIDE DYE, DYE COMPOSITION COMPRISNG THIS DYE, PROCESS FOR LIGHTENING KERATIN MATERIALS USING THIS DYE<br/>[FR] COLORANT THIOL/DISULFURE DÉRIVÉ D'INDOLIUM, COMPOSITION COLORANTE COMPRENANT LEDIT COLORANT, PROCÉDÉ D'ÉCLAIRCISSEMENT DE MATÉRIAUX À BASE DE KÉRATINE AU MOYEN DE CE COLORANT
申请人:OREAL
公开号:WO2009037348A1
公开(公告)日:2009-03-26
The invention relates to the dyeing of keratin materials using indolinium-derived thiol and disulfide fluorescent dyes. The invention relates to a dye composition comprising an indolinium-derived-chromophore thiol or disulfide dye and to a dyeing process with a lightening effect on keratin fibers such as the hair, using said composition. It similarly relates to novel indolinium-derived-chromophore thiol dyes and to the uses thereof in lightening keratin materials. This composition makes it possible to obtain a coloring with a lightening effect which is particularly resistant and visible on dark keratin fibers.
Spontaneous optical response towards cyanide ion in water by a reactive binding site probe
作者:Jong Ho Park、Ramalingam Manivannan、Palanisamy Jayasudha、Young-A Son
DOI:10.1016/j.saa.2020.118190
日期:2020.6
Indolium derivatives bearing diphenyl amine (R1) and dibenzylamine (R2) linked through benzene was designed, synthesized, characterized and its cyanide recognizing abilities are studied in 100% water. The probes were exhibited dual channel properties i.e. both colorimetric and fluorimetric changes for the effective sensing of cyanide ion. The discrete color variation of probes with cyanide ion makes
Selective detection of cyanide ion in 100 % water by indolium based dual reactive binding site optical sensor
作者:Jong Ho Park、Ramalingam Manivannan、Palanisamy Jayasudha、Young-A Son
DOI:10.1016/j.jphotochem.2020.112571
日期:2020.6
characterized and its cyanide recognizing abilities are examined in 100 % water. The sensor attach with cyanideion through nucleophilic addition to C atom of the indolium CN group. Also the sensor displayed colorimetric and fluorimetric behavior and it can be simply observed by naked eye. The addition of other chosen anions does not affect the sensor response towards cyanideion. Test strip constructed
We show that the equilibrium of intramolecular spirocyclization of coumarin–hemicyanine hybrid fluorophores can be finely tuned by means of chemical modifications to develop activatable fluorescence probes for hydrolases with large Stokes shift.
The photochromic spiropyrans and spirooxazines having a reactive pendant group, including carboxyl, halide, succinimidyl ester and isothiocyanate, were synthesized. Their photochromic behaviors in solution and solid state were studied.