–In this study cotton fabric was pretreated with nano TiO2 (<100nm) particles by Pad-Dry-Cure technique. The deposition of nano particles on the fabric was observed by SEM and elementally analyzed by oxford –Inca software using SEM. The treated fabric was analyzed for the change in their physical, biological and functional properties compared to the untreated cotton fabric. Very encouraging res...

A series of investigations on light induced thylakoid membrane conformational changes has been carried out using scattering changes measured either at 90° or 180° (transmittance changes) as criteria for changes in membrane structure upon illum ination. These two phenom ena were found to react similarly to a range o f photosynthetic inhibitors, to changes in the ionic (M g2+, H+) concentration, ...

the lethality of pulsed ultra-violet (uv) rich light for the inactivation of pathogenic bacteria has been investigated. a low pressure xenon filled flash lamps that produced uv intensities have been used. the pulsed operation of the system enable the release of electrical energy stored in the capacitor into the flash lamp within a short time and produces the high current and high peak power req...

The stability constants o f the 1:1 com plexes form ed betw een M g2+, Ca2+, Sr2+, B a2+, M n2+, C o2+, N i2+, Cu2+, Z n2+ or Cd2+ (= M 2+) and 5,6-dichloro-l-(/?-D-ribofuranosyl)benzim idazole (D R B ) were determ ined by potentiom etric pH titrations in aqueous solution (25 °C; I = 0.5 m, 8 N a N 0 3). The acidity constant o f H (D R B )+, the proton being at N 3, was m easured by the sam e m...

the method has been developed and validated for the determination of hydroquinone in liposomal formulation. the samples were dissolved in methanol and evaluated in 293 nm. the validation parameters such as linearity, accuracy, precision, specificity, limit of detection (lod) and limit of quantitation (loq) were determined. the calibration curve was linear in 1-50 µg /ml range of hydroquinone an...

in this paper the photocatalytic degradation of the anionic surfactant, linear alkylbenzene sulfonicacid (labsa) was investigated using uv radiation in the presence of tio2. our findingsdemonstrate that various parameters exert their individual influence on the photocatalytic degradationof surfactant in wastewaters. the mentioned parameters have been categorized as follow: the initialph of the ...