نتایج جستجو برای: species detection
تعداد نتایج: 1092271 فیلتر نتایج به سال:
in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...
background: entamoeba moshkovskii and e. dispar are impossible to differentiate microscopically from the pathogenic species e. histolytica . multiplex polymerase chain reaction (multiplex pcr) is a widespread molecular biology technique for amplification of multiple targets in a single pcr experiment. methods: for detection and differentiation of the three-microscopy indistinguishable entamoeba...
Immunofluorescence can be used to demonstrate mixed species within a mycoplasma culture; however, it may fail to do so if one species is present in very low numbers. To enhance the detection of minor components in such mixtures, a technique was developed, based on the growth inhibition test, whereby the growth of the major component in a mixed culture was inhibited, thus permitting the minor co...
Early detection of invasive species is critical for effective biocontrol to mitigate potential ecological and economic damage. Laser transmission spectroscopy (LTS) is a powerful solution offering real-time, DNA-based species detection in the field. LTS can measure the size, shape and number of nanoparticles in a solution and was used here to detect size shifts resulting from hybridization of t...
The faunistic investigation of beetles has been of a great importance in Iran due to the impresive diversity of species, which is highly promoted by the climatic variation of the Country. Therefore, detection of the ingenious regions, such as Taleqan, is important. In this study, mite-related beetles which were sampled from different areas of Taleqan were investigated and 14 species belonging t...
در این پروژه هدف طراحی و ساخت fluorescence detection systemجهت آشکارسازی مولکول های dna می باشد. در روش pcr، طی چندین چرخه دمایی، مولکول های dna کپی می شوند و سپس با استفاده از روش fluorescence detection، مولکول های بر انگیخته شده dna آشکارسازی می شوند. پس از آشکارسازی می توان به کپی و یا عدم کپی dnaها پی برد.می توان برای جداسازی مولکول های dna بر اساس طولشان، از روش gel electrophoresis استفاده...
A simple analytical system suitable for nephelometric measurements is introduced in this article. The electronic and optical components are simplified so that the apparatus is easily assembled from materials that are generally available. This instrument is designed for the efficient measurement of anions, and microgram quantities of ions may be determined by a convenient method of titration...
Background and Aim: Enteroinvasive Escherichia coli (EIEC) strains include a group of diarrheagenic Escherichia coli (DEC) and are known to cause shigellosis-like symptoms in both adults and children. They belong to a limited number of serotypes and their somatic (O) antigens are identical with, or related to, certain Shigella antigens. EIEC strains are confirmed by demonstration of invasivenes...
Aim & Background the genus Burkholderia (mallei and pseudomallei species) are classified as dangerous human pathogens. Diagnosing cultures for this bacterium is costly and time consuming and on the other hand it is very dangerous to work with and it is very difficult to access this bacterium. the porpose of this research Design and production of a genetically simulant construct for the detectio...
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