This study demonstrates the spectral data for two triarylmethane dyes, malachite green (MG) and crystal violet (CV) at room temperature. Effects of micellar environment, and crown ether addition on the spectral behaviour of the dyes were studied using absorption spectroscopic method. The dye-anionic surfactant interactions in micellar media were investigated. The chosen surfactants with differe...

this study demonstrates the spectral data for two triarylmethane dyes, malachite green (mg) and crystal violet (cv) at room temperature. effects of micellar environment, and crown ether addition on the spectral behaviour of the dyes were studied using absorption spectroscopic method. the dye-anionic surfactant interactions in micellar media were investigated. the chosen surfactants with differe...

a green and convenient méthode for the synthesis of  a variety of xanthene derivatives by condensation reaction between aldehydes and β-naphthol or dimedone in an micellar solution of sodium dodecylphosphonate is described. this method offers several advantages, such as using of a cheap and environmentally benign reaction media, low loadings of sodium dodecylphosphonate as catalyst and easy wor...

a simple and green synthesis of α-hydroxy phosphonates has been performed by reaction between aldehydes and triethyl phosphite using sodium dodecylphosphonate as anionic surfactant in micellar media under reflux conditions. the novel structures were recognized by 1h nmr, 13c nmr and 31p-nmr. the employ of green media, clean reaction profiles, simple experimental and work up procedures and high ...

The palladium-catalyzed trifluoromethylation of aryl bromides has been achieved in micellar media. The micellar conditions result in enhanced yields and are applicable to bromoaromatics with ketone, aldehyde, hydroxyl and amine functionalities.

Highly stable and homogeneously dispersed amino acid coated silver nanoparticles (ANP) of ≈ 10 nm diameter, ranging from 420 to 430 nm are prepared on AgNO3 solution addition to gum of Azadirachta indica solution at 373.15 K. The amino acids were selected based on their polarity. The synthesized nanoparticles were characterized by UV-Vis, FTIR spectroscopy, HR-TEM, XRD, SEM and 1H-NMR. The coat...

Migration of charged compounds in micellar electrokinetic chromatography (MEKC) is based on micellar solubilization as well as electrophoretic migration. Consequently, the migration behaviour of these compounds can be described with a retention model or a mobility model. Both models are discussed and evaluated for the migration behaviour of monovalent weak acids in a sodium dodecyl sulphate mic...

A green and convenient méthode for the synthesis of  a variety of xanthene derivatives by condensation reaction between aldehydes and β-naphthol or dimedone in an micellar solution of sodium dodecylphosphonate is described. This method offers several advantages, such as using of a cheap and environmentally benign reaction media, low loadings of sodium dodecylphosphonate as catalyst and...

Hydrolysis of Thiamine Pyrophosphate (TPP) is too sluggish even at elevated temperatures in aqueous buffer media. However, the hydrolysis reactions of thiamine pyrophosphate (TPP) are dramatically accelerated under micellar conditions even at room temperature by the addition of anionic (SDS) and nonionic (Tx) micelles. Menger – Portnoy’s enzymatic model and Piszkiewicz co-operativity model were...

The dissociation equilibria of ascorbic and maleic acids have been studied in certain cationic, anionic and non-ionic micellar media and their pK(a) values have been evaluated by the potentiometric, conductometric and spectrophotometric techniques. These pK(a) values have been found to shift in micellar media as compared to those in pure water. The differences in the values have been attributed...