Maslakci, Neslihan NohutEren, EsinDulgerbaki, CigdemYildirim, FatiOksuz, Aysegul Uygun2026-01-242026-01-2420232574-08812574-089Xhttps://doi.org/10.1080/25740881.2023.2169159https://hdl.handle.net/20.500.12868/5928Electrospun fibers of 7-methyl-4-phenyl-8-(4'-methoxy)phenylazopyrazolo[5,1-c][1,2,4]triazine-3-carboxylic acid ethyl ester (PCA-4) and 7-methyl-4-phenyl-8-(2'-methoxy)phenylazopyrazolo[5,1-c][1,2,4]triazine-3-carboxylic acid ethyl ester (PCA-2) were produced using electrospinning technique. Poly(methylmethacrylate) (PMMA) was used as support electrospun polymer. The morphological and chemical characterizations of the PCA-4/PMMA and PCA-2/PMMA electrospun fibers were carried out by scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy analysis (SEM-EDX). The electrochemical behavior of the PCA-4/PMMA and PCA-2/PMMA fibers onto ITO electrodes was examined by cyclic voltammetry (CV) measurements. The new PCA-4/PMMA and PCA-2/PMMA fibers were used for phosphate anion sensing. PCA-4/PMMA fiber indicated the best current response to 0.2 M phosphate buffer solution at -0.67 V.eninfo:eu-repo/semantics/closedAccessElectrochemistryelectrospinningfiberspyrazolo[51-c][124]triazine derivativeArticle10.1080/25740881.2023.21691596278778882-s2.0-85147181373Q2WOS:000919918300001Q3