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丙型肝炎病毒(HCV)曾称为肠道外传播的非甲非乙型肝炎病毒。它是一种小型(大小为55-65纳米)、包膜、正义单链RNA病毒,属黄病毒科。它有一个正感单链RNA基因组。基因组由一个单一的开放阅读框组成,长度为9600个核苷酸碱基。这个单一的开放阅读框被翻译成单一的蛋白质产物,然后被进一步加工成更小的活性蛋白质。丙型肝炎病毒是丙型肝炎和一些癌症的病因,如肝癌(肝细胞癌,缩写为HCC)和淋巴瘤。丙型肝炎病毒抗体(HCV-Ab)是由于免疫细胞对丙肝病毒感染所做出的反应而产生的。HCV-Ab呈阳性是HCV感染的标志。 本试剂盒采用间接法酶联免疫吸附试验(ELISA)。往预先包被有人丙型肝炎抗体(HCV-Ab)抗原的微孔中,依次加入样本、阳性对照、阴性对照、HRP标记的二抗,中间经过温育和洗涤,用底物TMB显色,TMB在过氧化物酶(HRP)的催化下转化成蓝色,并在酸的作用下转化成最终的黄色。颜色的深浅和样本中的人丙型肝炎抗体(HCV-Ab)呈正相关。用酶标仪在450nm波长下测定吸光度(OD值),判断样本阴阳性。
This kit employs the indirect enzyme-linked immunosorbent assay (ELISA) principle. Microplate wells are pre-coated with Human HCV-Ab antigen. The sample or standard is first added to the wells, followed by an HRP (horseradish peroxidase)-labeled secondary antibody. The procedure involves incubation and wash steps between each addition. TMB substrate is then added for color development. Under the catalysis of the peroxidase (HRP), TMB is converted into a blue product, which subsequently turns into a final stable yellow color upon the addition of an acid stop solution. The intensity of the yellow color is directly proportional to the concentration of Human HCV-Ab in the sample. The optical density (OD) is measured at a wavelength of 450 nm using a microplate reader, and the concentration of the target analyte in the sample is calculated based on the standard curve.