Ultrasensitive Luteolin Electrochemical Sensor Based on Novel Lamellar CuZn@ Nitrogen-Containing Carbon Nanosheets.
Yuhong LiYaqi YangJiejun LiLi ZhangPengcheng ZhaoJunjie FeiYixi XiePublished in: Nanomaterials (Basel, Switzerland) (2022)
The Cu/Zn-zeolitic imidazolate framework (Cu/Zn-ZIF) was synthesized using the traditional hydrothermal method, and its surface morphology was controlled by adding polyvinylpyrrolidone (PVP) during its synthesis. It was then calcined at 800 °C to form the nitrogen-containing carbon material CuZn@NC, which improved the electron transfer rate. Scanning electron microscopy (SEM), X-ray crystal diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were used to investigate the surface morphology and structure. Finally, the electrochemical sensing platform for luteolin was effectively constructed by changing the metal-ion ratio during synthesis to achieve the most suitable electrode material. The sensor platform detects luteolin well, with an operating curve equation of Ip (A) = 0.0571C (nM) - 1.2913 and a minimum detection limit of 15 nM, and the platform has been successfully employed for luteolin detection in real samples.
Keyphrases
- electron microscopy
- label free
- electron transfer
- gold nanoparticles
- high throughput
- molecularly imprinted
- high resolution
- photodynamic therapy
- heavy metals
- loop mediated isothermal amplification
- metal organic framework
- solid state
- quantum dots
- real time pcr
- ionic liquid
- wastewater treatment
- reduced graphene oxide
- magnetic resonance imaging
- computed tomography
- highly efficient
- mass spectrometry
- risk assessment
- anaerobic digestion
- simultaneous determination