基于金磁微粒的TORCH-IgM四項(xiàng)免疫層析檢測(cè)方法的建立
[Abstract]:TORCH is an acronym for a group of perinatal infections, including Toxoplasma gondii, rubella virus, cytomegalovirus and herpes simplex virus. The congenital infections they cause can cause serious damage to the fetus. Pregnant women infected with TORCH pathogens generally have no obvious clinical symptoms, even if there are symptoms, also lack specificity. On the other hand, specific IgM antibody, as the first antibody in immune response, is a marker for early detection of pathogens. Therefore, the detection of TORCH specific IgM antibody can realize the early detection of TORCH pathogens, which has high clinical value. In this paper, GoldMag (?) Gold magnetic particles were modified by sodium polystyrene sulfonate (PSS) and poly (sodium methacrylate) (PMAA) respectively. Modified GoldMag (?) The gold magnetic particle can be combined with the corresponding mouse anti-human IgM (渭 chain specific) antibody to form a probe, and a novel GoldMag (?) Four TORCH-IgM immunochromatographic methods were used to detect gold magnetic particles in order to detect TORCH pathogens quickly. The results showed that GoldMag (?) The particle size of gold magnetic particle is obviously smaller and the distribution is uniform. The modified GoldMag (?) The combination of gold magnetic particle and mouse anti-human IgM antibody was used to detect TORCH-IgM by immunochromatography. The method has the advantages of good reproducibility, high sensitivity and strong specificity. Triglycerides, heme, bilirubin and other common interfering substances have no effect on the detection results and there is no cross reaction among the four pathogens. Compared with the commercial TORCH-IgM detection kit, this method has higher sensitivity.
【學(xué)位授予單位】:西北大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2015
【分類號(hào)】:R446.6
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