A novel label-free electrochemiluminescence aptasensor using a tetrahedral DNA nanostructure as a scaffold for ultrasensitive detection of organophosphorus pesticides in a luminol–H<sub>2</sub>O<sub>2</sub> system
Fengzhen Yang, Jiansen Li, Haowei Dong, Guanjie Wang, Jie Han, Rui Xu, Qianqian Kong, Jingcheng Huang, Yaodong Xiang, Qingqing Yang, Xia Sun, Yemin Guo
Abstract
(S/N = 3) for phoxim were obtained, respectively. Moreover, the novel tetrahedral structure could be replaced by different types of aptamers to expand its application range and lay a foundation for the development of portable rapid detection devices for pesticide residues.
Topics & Concepts
Detection limitElectrochemiluminescenceAptamerLuminolChemistryLinear rangeCovalent bondNanostructureColloidal goldCombinatorial chemistryChemiluminescenceNanotechnologyTetrahedronPhenoxazineNanoparticleMaterials scienceChromatographyCrystallographyOrganic chemistryBiologyGeneticsPharmacologyMedicinePhenothiazineAdvanced biosensing and bioanalysis techniquesElectrochemical Analysis and ApplicationsElectrochemical sensors and biosensors