Antibody-based donor-acceptor spatial reconfiguration in decorated lanthanide-doped nanoparticle colloids for the quantification of okadaic acid biotoxin.

随着商业贝类毒素检测逐步摆脱小鼠生物试验，亟需开发可现场部署的新方法。本文报道一种简单、灵敏的纳米颗粒发光检测技术，用于检测海洋生物毒素奥卡达酸（okadaic acid, OA）。将光致发光稀土纳米颗粒与荧光标记的抗奥卡达酸抗体偶联；当抗体结合奥卡达酸后，供体纳米颗粒与受体有机荧光染料间距离缩短，产生从纳米颗粒到染料的发光共振能量...