The electrocatalytic oxidation of captopril (CAP) was studied by modified carbon nanotubes paste electrode in the presence of isoproterenol (ISPT) using cyclic voltammetry (CV), chronoamperometry and square wave voltammetry (SWV). Also, the values of catalytic rate constant (k), and electron transfer coefficient (α) for CAP were calculated. The mechanism of CA electrochemical behavior at the mo...

bacillus thuringiensis (bt) has been extensively used in biopesticidal formulations due to its safe environmental and human health records. the widespread use of bt is often challenged by production as well as formulation costs which are in direct contact with downstream processing, i.e. the separation/purification step. downstream separation/purification efficacy governs the marketability of a...

this study was conducted to determine soil properties that correlate with the arbuscular mycorrhizal fungal (amf) spore numbers in semiarid calcareous soils of hamadan province in northwestern of iran. soil samples from six sites managed differently were collected from a 0 to 30 cm depth. the results showed that land use and management systems had a significant effect on amf spore number in soi...

seed cap tightness is known to be highly associated with the low germinability of sugar beet fruits. despite, accomplishment of physiological phases of germination in germinating sugar beet seed with a tight cap, seedling emergence is usually suppress by the cap. as the seed coat (including the cap) is originated from ovary wall of the mother plant, seed cap tightness could be considered as one...

Objective(s): Silver nanostructures have gathered remarkable attention due to their applications in diversefields. Researchers have recently demonstrated that bacterial spores are capable of reducing silver ions toelemental silver leading to formation of nanoparticles.Materials and Methods: In this study, spores of Bacillus subtilis and Geobacillus stearothermophilus wereemployed to produce sil...

Metallic nanoparticles are traditionally synthesized by wet chemical techniques, where the chemicals used are often toxic and flammable. In the present study, the spore crystal mixture of Bacillus thuringiensis was used for the synthesis of silver nanoparticles. Nanoparticles were characterized using UV-Vis absorption spectroscopy, XRD and TEM. X-ray diffraction and TEM analysis showed the aver...

In this study seven plant species were collected from the forest of Arasbaran located in the northwest of Iran. Sampling was conducted in May and August and roots were used for calculating vesicular arbuscular mycorrhizal colonization percentage during the same period. Fine roots were separated, washed and put in FAA solution as a fixative. Through the time, root colonization of all plant speci...

Fresh mushrooms (Agaricus bisporus) were inoculated in the stem, gill, or cap with Clostridium botulinum spores. They were placed with uninoculated mushrooms in paper board trays, which were then covered and sealed in a polyvinyl chloride stretch film to simulate prepackaged mushrooms available at retail stores. When incubated at 20 C, botulinum toxin could be detected as early as day 3, or 4,...

The Escherichia coli catabolite activator protein (CAP) activates transcription at Plac, Pgal, and other promoters through interactions with the RNA polymerase subunit carboxyl-terminal domain ( CTD). We determined the crystal structure of the CAPCTD-DNA complex at a resolution of 3.1 angstroms. CAP makes direct protein-protein interactions with CTD, and CTD makes direct protein-DNA interaction...