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...

background chlorhexidine gluconate (chx) is the most common antimicrobial agent used against oral pathogens, however information on its ability to inhibit and disrupt anaerobic single and multispecies biofilms is relatively unknown. objectives the purpose of this study was to test the efficacy of chx for its biofilm inhibition and disruption properties using crystal violet assay. materials and ...

In the present study, comparative batch adsorption of basic dye namely Crystal Violet (CV) using the almond shell as an adsorbent in untreated form and activated with sodium hydroxide was carried out in search of optimum adsorption conditions. The operation parameters investigated was contact time (10 to 80 min), initial dye concentrations (40-240 mg/L), temperature, (20-5...

Aims: Lactate acid functions as not only an energy source but a signaling molecule through the lactate receptor GPR81 under physiological conditions. However, pathological role of lactic in tumor microenvironment remains unclear, particularly for immune cells.
 Methodology: NK-92 cells were treated with L-lactic solutions at final concentrations 10, 20, 30, and 40 mM, its cell viability cy...

results ll-37 and its truncated analogs were effective in inhibiting the growth of pdrab and had a rapid killing ability. after exposure to the peptides, the development of the pdrab biofilm was inhibited. strong inhibitory and dispersion effects of ff/cap18 on the biofilm were confirmed by fluorescence microscopy and field emission scanning electron microscopy. conclusions this results show th...

Surfactant-dye interactions are very important in chemical and dyeing processes. The dyes interact strongly with surfactant and show new spectrophotometric properties, so the UV-vis absorption spectrophotometric method has been used to study this process and extract some thermodynamic parameters. In this work, the association equilibrium between ionic dyes and ionic surfactant were studied by a...