Electrochemical Sensor Based on Au NPs@NiPc-Cu MOFs Modified Electrode for the Rapid Detection of Luteolin

Abstract

In this study, a novel electrochemical sensor was designed to detect luteolin (Lu) with the composite of gold nanoparticles and nickel phthalocyanine-based 2D conductive metal-organic frameworks (Au NPs@NiPc-Cu MOFs) for the first time. The NiPc-Cu MOFs exhibit excellent conductivity, large specific surface area, and porous structure, which can accelerate the mass transfer process of target molecules. To further improve the sensitivity of the sensing platform, Au NPs with outstanding conductivity were introduced to the surface of NiPc-Cu MOFs to prepare Au NPs@NiPc-Cu MOFs. The synergistic effect of NiPc-Cu MOFs and Au NPs endows the sensor with excellent electrocatalytic performance and outstanding sensitivity. Under optimal conditions, the electrochemical sensor has a wide linear range (0.1-40 μM). Moreover, the prepared sensor possesses good stability and anti-interference ability. This method does not require complicated sample pretreatment, simple operation, and short detection time, which can provide a new method for the rapid detection of Lu.

Simultaneous Electrochemical Detection of Dopamine and Uric Acid via Au@Cu‐Metal Organic Framework

“…[10] The porous structure of MOFs makes NPs accessible to the environment, indicating a good candidate to be used in sensors and could enhance the electrochemical sensing performance. Among all metal NPs, Au has shown the better results, as reported by the previous literature on Au functionalized MOFs electrode for H 2 O 2 , [11] p-aminophenol, [12] glucose, [13] and luteolin [14] determination.…”

An efficient electrochemical sensor based on the Ce-MOF/g-C3N5 composite for the detection of nitrofurazone

“…The reason for the excellent performance can be inferred as the synergistic effect of g-C 3 N 5 and Ce-MOF. 29–31 On the one hand, Ce-MOF possesses a luxuriant pore structure (Fig. S2†), which is beneficial for the adsorption and diffusion of nitrofurazone.…”

Simple Fabrication of Mesoporous Praseodymium Cerate via an Eco-Friendly Route for Development of Carbendazim Electrochemical Sensor

“…Chemical sensors' repeatability and detection limit have been significantly improved by the use of nanomaterials for selective analyte determination. [32][33][34][35][36][37] Lanthanide ions have large atomic magnetic moments and strong spin-orbit coupling as well as an abundance of coordination modes because of their particular 4 f electron configurations. 38 These ion complexes have special magnetic, electrical, and optical characteristics, which is why lanthanide nanoparticles have recently received a lot of attention.…”