background: leishmaniases are a group of diseases caused by leishmania parasites .  growing of drug unresponsiveness in leishmaniasis patients necessitates the development of new drugs and accor­dingly a suitable assay is needed for evaluation of any modalities.  the aim of this study was to compare four drug assays methods, agar dilution, broth dilution, cylinder plate and disk diffusion, for ...

thirty-five fungal strains which isolated from vegetable wastes, were screened for the use of polygalacturonic acid as the sole carbon source. twenty-five isolates were positive for polygalacturonase activity in cup-plate assay, as evidenced by clear hydrolysation zones. the most productive strain was determined by measuring clear zones formed around colonies stained with ruthenium red. the hig...

HOFF-JORGENSEN, E. AND HANSEN, B. 1955 A microbiological assay of vitamin B1. Acta Chem. Scand., 9, 562-566. JONES, A. AND MORRIS, S. 1949 The use of the plate method for the assay of aneurine in yeast and yeast products. Analyst, 74, 333-339. LEES, K. A. AND TOOTILL, J. P. R. 1955 Microbiological assay on large plates. Analyst, 80, 95-110. MACIASR, F. M. 1957 Improved medium for assay of thiam...

Investigating and understanding the response of microbes to various surfaces requires a versatile parametrisation surface, multiple assays that captures complexity biofilm structures. Here, Staphylococcus aureus viability, polysaccharide poly-N-acetylglucosamine, proteins on cell surface were analysed with agar plate- well plate-based formation assays. Biofilms grown set nanostructured polymeri...

Lactobacillus fermenti strain 36 is the most frequently used microorganism for the assay of thiamine both in the tube method, (Sarett and Cheldelin, 1944; Fitzgerald and Hughes, 1949), and in the plate method, (Bacharach and Cuthbertson, 1948; Jones and Morris, 1949). Other microorganisms have more recently been suggested for the tube assay; Hoff-Jorgensen and Hansen (1955) used the yeast Kloec...

Vibriocidal antibody assay has been a surrogate standard assay in the evaluation of cholera vaccine efficacy because it has a good correlation with protection. Although the optical density-based vibriocidal assay in a 96-well microtiter-plate format is widely used in clinical trials, it has limitations as vibriocidal titers are altered by incubation time and samples with the same end-point tite...