In vitro antibacterial activities of hexane, chloroform and methanolic crude extracts of Abrus precatorius seeds were tested against ten clinical isolates using the agar well diffusion technique. Hexane, chloroform and methanolic extracts were obtained using the soxhlet extractor on A. precatorius seeds. To measure the MIC values, various concentrations of the stock, 500, 250, 100, 75, 50, 35, ...

Nanostructured ZnO thin films were prepared by sol-gel dip coating technique. Zinc acetate and ammonium hydroxide were used as precursors and ethanol was as solvent. Ammonium hydroxide (NH4OH) solution was added drop-wise under vigorous stirring to obtain the sol-gel of different pH (varying from 6.9 to 7.2). ZnO thin films were obtained by dipping the glass substrates for few seconds and then ...

In dip-coating processes a three-dimensional object, e.g. an entire car body, is dipped into a liquid bath. In order to simulate such processes, the space surrounding the object is decomposed into the so-called flow volumes, for which each intersection with a horizontal plane is connected. At any time the liquid’s surface then has a unique level within such a flow volume, which greatly simplifi...

In the Kean method for the colorimetric determination of sulfatide (1968. J. Lipid Res. 9: 319-327), the lipid is partitioned together with a blue cationic compound between two phases formed from chloroform, methanol, and water. The blue cation enters the chloroform-rich phase only as an ion pair with the lipid. This method has been improved by the use of a new mixture of solvents in which the ...

for many years, gutta-percha has been the root canal filling material of choice. chloroform is one of the most efficient solvents widely used for gutta-percha removal in retreatment cases, despite being toxic and carcinogenic. the present case report discusses a chloroform extrusion through an existing perforation to the surrounding periodontal ligament space and subsequent necrosis in supporti...

Electrospinning is an inexpensive and versatile technique for fabricating micro- nano- scaled fibers. There have been limited attempts to employ it the fabrication of thermochromic (TC) fibers, a three-component (dye, developer, solvent) TC material has required use more complicated coaxial electrospinning technique. Herein, simple novel method creating fibers by single strands poly (methyl met...

Agrobacterium-mediated plant transformation via floral-dip is a widely used technique in the field of plant transformation and has been reported to be successful for many plant species. However, flax (Linum usitatissimum) transformation by floral-dip has not been reported. The goal of this protocol is to establish that Agrobacterium and the floral-dip method can be used to generate transgenic f...

background and objectives: food contamination by aflatoxins is an important food safety concern for agricultural products. in order to identify and develop novel antifungal agents, several plant extracts and isolated compounds have been evaluated for their bioactivities. anti-infectious activity of piper betle used in traditional medicine of malaysia has been reported previously. materials and ...