Properties of a metallodendritic complex on the carbon nanotube platform for effective voltammetric detection of thiols compounds.
CARMO, Devaney Ribeiro do; FELIPE, Alexsandro dos Santos; PEIXOTO, Murilo Santos; MASTELARO, Valmor Roberto; VICENTE, Fábio Simões de; SOTO, Pablo Colofatti.
CARMO, Devaney Ribeiro do; FELIPE, Alexsandro dos Santos; PEIXOTO, Murilo Santos; MASTELARO, Valmor Roberto; VICENTE, Fábio Simões de; SOTO, Pablo Colofatti.
Abstract: This article describes the spectroscopic and voltammetric properties of a metallodendritic complex (CNTmDCuH) on a carboxylated multi-walled carbon nanotube, as well as its application in the voltammetric detection of thiols compounds such as N-acetylcysteine and L-cysteine. The CNTmDCuH was characterized by spectroscopic and morphological techniques, including Fourier Transform Infrared Spectroscopy (FT-IR), Raman spectroscopy, X-Ray Photoelectron Spectroscopy (XPS), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy-Dispersive X-ray spectroscopy, surface area /porosity analysis, and cyclic voltammetry. The redox couple (II) showed high sensitivity to N-acetylcysteine and L-cysteine. The analytical curve provided a linear response within the concentration ranges of 5.0 × 10 -5 to 1.0 × 10-3mol L-1 for N-acetylcysteine and 9.0 × 10-5 to 1.0 × 10 -3 mol L-1for L-cysteine. The method exhibited limits of detection of 4.13 × 10 -5 mol L-1 and 3.3 × 10-5 mol L-1 for N-acetylcysteine and L-cysteine, respectively.
@article={003298494,author = {CARMO, Devaney Ribeiro do; FELIPE, Alexsandro dos Santos; PEIXOTO, Murilo Santos; MASTELARO, Valmor Roberto; VICENTE, Fábio Simões de; SOTO, Pablo Colofatti.},title={Properties of a metallodendritic complex on the carbon nanotube platform for effective voltammetric detection of thiols compounds},journal={Journal of Inorganic and Organometallic Polymers and Materials},note={v. 36, n. 4, p. 2125-2143 + supplementary materials},year={2026}}