نتایج جستجو برای: based assay
تعداد نتایج: 3113259 فیلتر نتایج به سال:
Access to point-of-care (POC), rapid, inexpensive, sensitive, and instrument-free tests for the diagnosis of tuberculosis (TB) remains a major challenge. Here, we report a simple and low-cost microchip-based TB ELISA (MTBE) platform for the detection of anti-mycobacterial IgG in plasma samples in less than 15 minutes. The MTBE employs a flow-less, magnet-actuated, bead-based ELISA for simultane...
We report a rapid and versatile organophosphorus hydrolase (OPH)-based method for measurement of organophosphates. This assay is based on a substrate-dependent change in pH at the local vicinity of the enzyme. The pH change is monitored using fluorescein isothiocyanate (FITC), which is covalently immobilized to the enzyme. This method employs the use of poly(methyl methacrylate) beads to which ...
A novel electrochemical assay to quantify transglutaminase activity is reported. The assay is based on the enzyme-controlled diffusion of Fe(CN)6(3-/4-) through amino-functionalized nanochannels of a mesoporous silica thin film on a Au surface in the presence of N-benzyloxycarbonyl-L-glutaminylglycine.
پیش زمینه و هدف: رسوراترول (3، 4، 5 تری هیدروکسی- ترانس استیل بن، یک استیل بنوئید)، نوعی ترکیب فنول طبیعی است. این ترکیب در پوست انگور قرمز، همچنین در ریشه knotweed ژاپنی (polygonum cuspidatum گیاه هفت بند) نیز وجود دارد. رسوراترول همچنین در گیاه gnetum cleistostachyum (از تیره گیاه ریش بز) نیز وجود دارد. در سال های اخیر مطالعاتی در خصوص خواص ضدالتهابی و ضد کانسری این ترکیب بخصوص در کانسرهای گو...
background and objectives: angiogenesis is essential for tumor survival. inhibiting angiogenesis could be a mechanism for hindering tumor development. numerous studies have now been focused on agiogenesis inhibitors and many of such studies have targeted plant materials. in the present study, crocus pallasii subsp. haussknechtii has been evaluated for anti-angiogenesis properties. methods: anti...
Objective To compare specificity and sensitivity of a commercially available fixed cell-based assay (F-CBA) to radioimmunoprecipitation (RIPA) for acetylcholine receptor antibody (anti-AChR) detection in myasthenia gravis (MG). Background Approximately 50% ocular 85% generalized MG are anti-AChR positive by RIPA, the current gold standard test. Clustered live (L-CBA) can detect low-affinity tha...
the aim of this study was to evaluate an enzyme - linked immunosorbent assay (elisa) for the detection of anti - helicobacter pylori (h. pylori) specific igg antibodies in specimens of oral fluid. all subjects over the age 18 years undergoing endoscopy for any reason were asked to participate in the study. two groups of 44 patients in each were selected as hp+ and hp-. at the same time, 5 milli...
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