A signal on-off ratiometric electrochemical sensor coupled with a molecular imprinted polymer for selective and stable determination of imidacloprid

Determination of chloropropanol with an imprinted electrochemical sensor based on multi-walled carbon nanotubes/metal–organic framework composites

“…It introduces a novel development and research to analytical chemistry. [7][8][9][10] Owing to high speci-city for target molecules, remarkable sensitivity, and simple operation, 11 MIECS have extensive applications in the elds of food security, pesticide residues, environmental detection, clinical medicine and so on. [12][13][14] To increase the surface area of the modied electrode, materials with excellent performance are usually incorporated.…”

LSPR immuno-sensing based on iso-Y nanopillars for highly sensitive and specific imidacloprid detection

“…It must be mentioned that the obtained LOD value of 0.75 ppb is extremely competitive considering the imidacloprid detection systems reported in the literature. [13][14][15][16][17][18] Moreover, we believe that our work represents an outstanding result considering that is the first example of imidacloprid detection achieved using a LSPR tool.…”

“…16 Zhang et al used MIP as a recognition element to realize an electrochemical sensor based on a ratiometric strategy found a LOD = 47 nM (12 ng mL À1 ). 17 Among the variety of transduction elements that can be adopted for the simple, label-free, cost-effective and on-site investigation of hazardous agents to ensure environmental protection and food safety, localized surface plasmon resonance (LSPR) has proved to be particularly favourable. 18 This phenomenon exploits a coherent oscillation of the conduction electrons generated in metallic nanoelements upon interaction with photons of appropriate wavelength, causing both transmitted light attenuation and electric near-field amplification.…”

3D‐Architectured MoS2‐Microflower‐Modified Electrodes toward Electrochemical Determination of Imidacloprid

“…They exhibit high efficiency and low toxicity and can bind the nicotinic acetylcholine receptors in the central nervous system of insects, leading to paralysis, and ultimately the death of the insects. [1,2] Among the various neonics, imidacloprid (IMI) is a commercially available agricultural insecticide for controlling pests in various crops (rice, cotton, peanuts etc. ), fruits and vegetables.…”

“…Since IMI is an electroactive material, electroanalytical techniques have received much attention for the detection of IMI. [2,3,12] These techniques allow simple operation and offer rapid and on-site response with high sensitivity. In electrochemical measurements, electrodes are the key components and their modifications with various nanomaterials/composites have facilitated the enhanced performance of the fabricated biosensors.…”