Homogeneous voltammetric sensing strategy for lead ions based on aptamer gated methylthionine chloride@UiO-66-NH 2 framework as smart target-stimulated responsive nanomaterial.
Tingting LiuRuiyong ZhouConglin ZhangYinhui YiGangbing ZhuPublished in: Chemical communications (Cambridge, England) (2023)
Herein an innovative electrochemical method is proposed for the determination of lead ions (Pb 2+ ) based on a homogeneous voltammetric (HVC) sensing strategy using an aptamer gated methylthionine chloride@UiO-66-NH 2 framework as a smart target-stimulated responsive material. The proposed HVC sensor exhibits excellent sensing performance: ultralow detection limit (0.166 pM) and wide linearity (5.0 pM-500.0 nM), simultaneously, it avoids electrodeposition processes and it is simple to modify the electrode compared to previous electrochemical methods for Pb 2+ detection. Thus our method shows great potential in the highly efficient detection of Pb 2+ and other heavy metal ions by simply altering the related specific aptamer.
Keyphrases
- heavy metals
- label free
- gold nanoparticles
- molecularly imprinted
- highly efficient
- aqueous solution
- risk assessment
- loop mediated isothermal amplification
- sensitive detection
- health risk assessment
- quantum dots
- health risk
- reduced graphene oxide
- water soluble
- particulate matter
- real time pcr
- cancer therapy
- sewage sludge
- metal organic framework
- solid phase extraction
- ionic liquid
- human health
- photodynamic therapy
- high resolution
- carbon nanotubes