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In this study, we reported the preparation of a conducting polymeric/inorganic nanohybrid consisting of multiwalled carbon nanotubes (MWCNT), N-doped graphene (NGr), and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), and its electrochemical application in intelligent sensors and supercapacitors. The multilayer thin film of the PEDOT:PSS-supported MWCNT-NGr nanohybrid was prepared by a facile layer-by-layer assembly strategy. The obtained conducting polymeric/inorganic nanohybrid modified electrode displayed superior electron transfer ability and a high specific surface area, which was used for electrochemical applications in intelligent sensors and supercapacitors. Remarkably, the fabricated amaranth sensor exhibited a broad linear range of 0.05-10 μM with a limit of detection of 0.015 μM under the optimal conditions. With the help of the response surface methodology, multivariate optimization was used as a substitute for the traditional single variable optimization to reflect the complete real effects of multivariate optimization in a sensing platform. Machine learning implemented by hybrid genetic algorithm-artificial neural network was used as an intelligent analysis model to replace the traditional regression analysis model for realizing intelligent analysis and output of sensing system. The MWCNT-NGr/PEDOT:PSS modified electrode exhibited a considerable specific capacitance of 6.5 mF cm-2 at a current density of 2.0 mA cm-2. The proposed results provided a new thought for a nanosensing platform equipped with a supercapacitor as a self-powered electrochemical energy storage system and machine learning as an intelligent analysis and output system in the near future.

Three modified 1,2,4-trizaole derivatives were synthesized and compounded in pairs. Their structures were confirmed by 1H NMR and ESI-MS. Antibacterial tests were proceeded to evaluate the fungicidal activity of synthesized compounds. The results of antibacterial tests showed that the synthesized compounds exhibited good antibacterial activities against Coriolus versicolor, Gloeophyllum trabeum, Trichoderma viride, and Aspergillus niger at a ratio of 5:5. In order to improve the water solubility of target products, emulsification experiments were carried out and beta-cypermethrin was added as a pesticide. The appropriate emulsifier types and dosage ratios for the synthesized compounds were finally screened out.

This study aimed to evaluate the preservative ability of modified flutriafol derivatives against decay fungi. The bacteriostatic effect of flutriafol on Trichoderma viride was not efficient as expected. Flutriafol was modified as a parent substrate to improve its broad spectrum performance. Six triazole compounds were synthesized by Friedel–Crafts reaction, oxygen–sulfur–ylide reaction, and ring-opening addition reaction. The structures of the target products were determined by 1H NMR and MS. Antibacterial and antileakage tests were performed to optimize the most efficient agents among triazole target products.