Comparing two cortisol aptamers for label-free fluorescent and colorimetric biosensors
Chenqi Niu, Yuzhe Ding, Chong Zhang, Juewen Liu
Abstract
A comparison between two truncated DNA aptamers reported to bind with cortisol was performed and binding was observed only for one of them. Two label-free sensing methods were studied including cortisol/gold nanoparticle interactions critical for colorimetric sensing.
Topics & Concepts
AptamerBiosensorFluorescenceColorimetryDNAChemistryNanotechnologyBiophysicsComputational biologyBiologyBiochemistryMolecular biologyChromatographyMaterials scienceOpticsPhysicsAdvanced biosensing and bioanalysis techniquesBiosensors and Analytical DetectionGold and Silver Nanoparticles Synthesis and Applications