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液态生物芯片技术及其应用 被引量:6

Liquid Bio-chip Technique and Its Application
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摘要 目前,在核酸和蛋白质研究领域出现了一种全新的、称之为悬浮式点阵(suspension array)的检测手段和技术,该技术在很大程度上依赖最近在光电转换和数字信号处理的进步,通过一束激光识别高分子(如聚苯乙烯)微球所产生的特异性荧光,另一束激光识别微球表面发生生物学反应后所产生的荧光信号,荧光编码不同的微球来实现检测指标的分类,进而实现高通量生物样品的分析;而通过生物学反应所产生的荧光信号可以实现分析的特异性.目前,这种基于荧光编码微球的高通量分析技术可提供快速、敏感、对一个样品进行至多可达100个分析指标的检测.分析荧光微球的速度最高可达5000个/秒.应用时,把对应不同检测物的乳胶颗粒混合后再加入微量样品,在悬液中与微球进行特异性结合.结合的结果可以在瞬间经激光判定后由电脑数据信息的形式记录下来.因为分子杂交是在悬浮溶液中进行,检测速度快,所以又有"液态生物芯片"之称.
出处 《中国计划生育学杂志》 2004年第6期382-384,共3页 Chinese Journal of Family Planning
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