Fluorescent peptide-based sensors for the ratiometric detection of nanomolar concentration of heparin in aqueous solutions and in serum.
本研究采用固相合成法制备了三种基于短肽(1–3聚精氨酸)的荧光传感器(1–3),用于血清中肝素的监测。传感器2和3在10 mM HEPES缓冲液(pH 7.4)及2%人血清中均对肝素表现出灵敏的比值响应:芘单体376 nm发射降低,同时芘激基复合物480 nm发射增强;传感器1仅表现为376 nm单体发射降低的关型响应。2和3对肝素...