A simple method for organically modifying a natural acid clay (Japanese clay) rapidly with alkylamine has been developed. Japanese mainly consists of acidic montmorillonite and was successfully modified decylamine in water at room temperature short time period (10 min) using an ultrasonic bath without any pretreatments. The structure the changed from exterior surface modification to intercalati...

A new spectrophotometric method is proposed for the assay of ranitidine hydrochloride (RNH) in bulk drug and in its dosage forms using ceric ammonium sulphate (CAS) and two dyes, malachite (MAG) green and crystal violet (CV) as reagents. The method involves the addition of a known excess of ceric ammonium sulphate to ranitidine hydrochloride in acid medium, followed by the determination of unre...

Purple bag urine syndrome (PUBS) is a benign and unique phenomenon of the urine turning a deep violet color within the urinary catheter tubing and bag. This phenomenon is commonly encountered in patients indicated with long-term catheter placement or, in certain conditions like chronic constipation, alkaline urine, limited ambulation, and, in terms of gender distribution, the female sex, predom...

Vibrio parahaemolyticus was subjected to cold shock treatment at 20 or 15 degrees C for 2 or 4 h. The effect of cold shock on the survival of V. parahaemolyticus subjected to subsequent low temperature (5 and -18 degrees C) and other adverse conditions (47 degrees C, 6 ppm crystal violet, 1000 ppm H(2)O(2), 25 mM acetic acid and 25 mM lactic acid) was investigated. Regardless of the cold shock ...

A new water-soluble pyrene-containing fluorescent polymer, 1-{31-S-[poly(acryloyl ethylene diamine hydrochloride)-21-methyl propionic acid]}propionyloxy hexyloxy pyrene (P3) with defined structure, was designed and synthesized using the click reaction between thiol and a carbon-carbon double bond. The intermediate products P1 (S-1-dodecyl-S1-[poly(N-Boc-acryloyl ethylene diamine)-21-methyl prop...

objective(s):the inhibitory effects of iron chelators, and fecl3 chelation on biofilm formation and swarming motility were investigated against an opportunistic human pathogen pseudomonas aeruginosa. materials and methods:the inhibitory activity of 2,2’-bipyridyl, lipoic acid, kojic acid and picolinic acidonbiofilm formation of p. aeruginosa strain pao1 and three clinical isolates (p. aeruginos...

A large number of compounds including actinobolin, adrenochrome, amicetin, anisomycin, aurintricarboxylic acid, blasticidin S, chartreusin, chlortetracycline, cycloheximide, doxycycline, edeine A1, edeine complex, emetine, fusidic acid, gougerotin, GppCH2p, oxytetracycline, pactamycin, polydextran sulphate, puromycin, pyrocatechol violet, sparsomycin and tubulosine have been tested for inhibito...

The effect of Ultra-Violet (UV) irradiation and acridine orange dye on L-glutamic acid producing Bacillus subtilis B. megaterium was investigated. selected mutant strains wild types were immobilized used for production. exposed to UV treated with respectively. survived found reduce as the exposure time concentration mutagens increased in this study. Four mutants two Mutant strain (MAIR4) yielde...