Layer-by-layer assembly strategy for fabrication of polydopamine-polyethyleneimine hybrid modified fibers and their application to solid-phase microextraction of bioactive molecules from medicinal plant samples followed by surface plasmon resonance biosensor validation.

本文提出一种固相微萃取（SPME）方法，用于克服传统植物化学鉴定中药活性化合物时分离纯化繁琐、耗时长和有机溶剂消耗大的问题。作者采用层层组装策略制备聚偏二氟乙烯纤维@聚多巴胺@聚乙烯亚胺@受体（PVDF@PDA@PEI@receptor）功能化纤维，将其浸入中药样品溶液，经搅拌后取出，并用有机溶剂使受体结合的配体解离。以黄嘌呤氧化酶...