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Selection, Characterization, and Optimization of Aptamers against Hemin and Aflatoxins B1

Abstract

小分子物质,特别是有毒小分子物质的检测是抗体技术在现代分析化学领域应用的一个瓶颈。基于指数富集配体系统进化(SELEX)技术的核酸适体(aptamer),被誉为“人工抗体”,它不仅能与靶分子高亲和力和高特异性结合,而且具有靶分子广泛、分子量小、化学合成便捷经济、稳定性高、无免疫原性、以及易于精确定点修饰等诸多优点,是潜在的抗体替代物,在生化分析检测领域显示出巨大的应用前景。目前,基于核酸适体的识别与检测方法,正逐渐成为一种新的普遍适用的技术。但是,靶向小分子物质的核酸适体并不多见,限制了其广泛应用;核酸适体在生化检测分析中的应用尚处于起步阶段。因此,筛选小分子物质的特异性核酸适体并发展核酸适体...As we know, detection of small molecules, especially toxic substances is a bottleneck of antibody technology in the field of modern analytical chemistry. A new kind of ligand-binding functional nucleic acid probe named aptamer evolved by SELEX is known as the “artificial antibody” with high affinity and strong specificity to targets. Aptamers show their own dominance over antibodies such as ...学位:理学硕士院系专业:化学化工学院化学系_化学生物学学号:2052009115142

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