Spectral studies of Pinacyanol Chloride in Sodium Alkyl Sulfate

Dependence of Alkyl Chain Conformation of Simple Ionic Surfactants on Head Group Functionality As Studied by Vibrational Sum-Frequency Spectroscopy

The conformational order of sodium dodecyl sulfate (SDS), sodium dodecylsulfonate (DDS), dodecyltrimethylammonium chloride (DTAC), and dodecylammonium chloride (DAC) adsorbed at the D2O/CCl4 interface has been examined by total internal reflection sum-frequency vibrational spectroscopy (VSFS). The vibrational sum-frequency spectra indicate the presence of gauche conformations in the hydrocarbon...

Effect of zinc sulfate and sodium chloride stress on two rootstocks of Qazvini and Badami Zarand pistachio in greenhouse conditions

Efficiency of Spectral Indices Derived from Landsat-8 Images of Maharloo Lake and Its Surrounding Rangelands

Maharloo Lake is one of the salty lakes located in the southeast of Fars province, Iran. Presence of salt domes has a significant role in its salinity. Magnesium-sodium chloride and sodium sulfate are dominant salts of the lake. Due to the drying up of lake, widespread lands surrounding the area are exposed to secondary salinity. It seems necessary to investigate the changes to find salinity le...

Interactions of bacterial polysaccharides with cationic dyes: physicochemical studies.

Capsular polysaccharides (SPS) are an integral component of gram-negative bacteria, and also have potential use as vaccine. In this paper, interactions of SPS isolated from Klebsiella strains K20 and K51 with cationic dyes pinacyanol chloride (PCYN) and acridine orange (AO) were studied by absorbance and fluorescence measurements. Both the polysaccharides having glucuronic acid as the potential...

Studies on the Interaction of Klebsiella K34 Capsular Polysaccharide with Oppositely Charged Dyes and Surfactants

Spectral studies on the interaction of capsular polysaccharide (SPS) isolated from Klebsiella serotype K34, with oppositely charged dyes and surfactants have been reported. The SPS was acidic in nature and induced strong metachromacy (~110 nm blue shift) in the cationic dye pinacyanol chloride (PCYN) which was due to “card-pack stacking” of individual dye monomers on the surface of the polyanio...