A method for testing the sensitivity to streptomycin of strains of Mycobacterium tuberculosis has been recommended by the Streptomycin in Tuberculosis Trials Committee of the Medical Research Council (1948a). The tests are carried out in a modified Tween 80-albumen liquid medium (Dubos and Davis, 1946) containing various concentrations of streptomycin. It seems probable that strains derived fro...

Cellular protein, pH, dissolved oxygen concentration, and static surface tension were measured during growth of Thiobacillus acidophilus on elemental sulfur in the absence and presence of up to 5,000 mg of Tween 80 per liter. The decrease in pH and the increase in sulfate production were observed to be less accurate measurements of growth when compared with the increase in cellular protein. The...

The white rot fungi Stereum ostrea displayed a wide diversity in their response to supplemented inducers, surfactants, and copper sulphate in solid state fermentation. Among the inducers tested, 0.02% veratryl alcohol increased the ligninolytic enzyme production to a significant extent. The addition of copper sulphate at 300 μM concentration has a positive effect on laccase production increasin...

Abstract Background In the current treatment of non-small cell lung cancer (NSCLC), traditional chemotherapy causes high toxicity, so it is necessary to develop safe chemical drug delivery vehicles clinically. Chemotherapy monotherapy prone resistance. combined with other therapies such as nucleic acid drugs an effective way avoid resistance and toxicity continuous chemotherapy. this study, siR...

The formalin-Tween sedimentation method was compared with the formalin-ether sedimentation for parasitic detection. Of a total 297 fecal specimens examined, 72.1% were positive. The formalin-tween technique was effective for ascertaining helminths, particularly Ascaris lumbricoides, Trichuris trichiura and hookworm eggs; however it has less capability for protozoa detection. This method is simp...

Toxicity by oral route administration of S. anacardium extract with peanut oil was compared against the same extract emulsified with Tween-80 saline. The traditional way of administration with peanut oil was found to be safe and upto 25 mg/kg/day x9 days, increase in weight, RBCs & haemoglobin % was observed without mortality. Same dose with Tween-80 saline was found to have adverse effects reg...

This work was aimed at the examination of interaction certain physicochemical properties on micellar systems constituting a polymer (sodium alginate), two surfactants (CTAB and tween 80), Algerian olive oil. Response surface modelling (RSM) applied to study combined effects containing each type surfactant. The monitoring four independent parameters, i.e., interfacial tension (Y1), conductivity ...

Spray freeze drying was developed to produce dry powders suitable for applications such as inhalation delivery. In the current study, the spray freeze drying technique was employed to produce inhalable salmon calcitonin microparticles. Effects of the carrier type, concentration of hydroxyl propyl-β-cyclodextrin and the presence of Tween 80 on the chemical and structural stability, as well as on...