Host-guest assembly based on γ-cyclodextrin-functionalized multiwalled carbon nanotubes for Rutin electrochemical sensing

Santos Neto, Antonio Gomes dos; Morawski, Franciele de Matos; Santos, Ana Caroline Ferreira; Rocha, Cláudia Quintino da; Lima, Roberto Batista de; Goulart, Marilia Oliveira Fonseca; Santos, Clenilton Costa dos; Colmati Junior, Flavio; Santana, Antônio Euzébio Goulart; Garcia, Marco Aurélio Suller; Tanaka, Auro Atsushi

Host-guest assembly based on γ-cyclodextrin-functionalized multiwalled carbon nanotubes for Rutin electrochemical sensing

Data

2023

Autores

Santos Neto, Antonio Gomes dos

Morawski, Franciele de Matos

Santos, Ana Caroline Ferreira

Rocha, Cláudia Quintino da

Lima, Roberto Batista de

Goulart, Marilia Oliveira Fonseca

Santos, Clenilton Costa dos

Colmati Junior, Flavio

Santana, Antônio Euzébio Goulart

Garcia, Marco Aurélio Suller

Resumo

Here, we report multiwalled carbon nanotubes (MWCNTs) functionalized with γ-cyclodextrins (γCD) as a novel electrochemical strategy for Rutin determination, showing superior performance than β-cyclodextrins (βCD) modified MWCNTs, suggesting an adequate environment for host-guest interactions. Under optimized conditions, the sensor showed a linear range of 39–975 nmol L−1 and a limit of detection of 7 nmol L−1. When tested with quercetin, catechin, and caffeine, the platform presented high selectivity with an interference response <10 %. The method was employed to quantify Rutin in spiked pharmaceutical and herbal extracts, providing recovery of 93–98.4 %. Also, HPLC-PDA confirmed the method‘s accuracy.

Palavras-chave

Supramolecular chemistry, Multi-walled carbon nanotubes, Rutin, Host-guest, Square wave voltammetry, Flavonoids, Pharmaceutical compounds

Citação

SANTOS NETO, Antônio Gomes dos et al. Host-guest assembly based on γ-cyclodextrin-functionalized multiwalled carbon nanotubes for Rutin electrochemical sensing. Electroanalysis, Weinheim, v. 35, n. 5, e202200390, 2022. DOI: 10.1002/elan.202200390. Disponível em: https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/10.1002/elan.202200390. Acesso em: 12 dez. 2023.