Host-guest Assembly Based on γ-Cyclodextrin-functionalized Multiwalled Carbon Nanotubes for Rutin Electrochemical Sensing

被引：0

作者：

Neto, Antonio Gomes dos Santos ^{[1
]}

Morawski, Franciele de Matos ^{[2
]}

Santos, Ana Caroline Ferreira ^{[3
]}

da Rocha, Claudia Quintino

de Lima, Roberto Batista ^{[1
]}

Goulart, Marilia Oliveira Fonseca ^{[3
,6
]}

dos Santos, Clenilton Costa ^{[4
]}

Colmati, Flavio ^{[5
]}

Santana, Antonio Euzebio Goulart ^{[3
]}

Garcia, Marco Aurelio Suller ^{[1
]}

Tanaka, Auro Atsushi ^{[1
,6
]}

机构：

[1] Univ Fed Maranhao, Dept Quim, Av Portugueses 1966, BR-65080805 Sao Luis, MA, Brazil

[2] Univ Fed Santa Catarina, Dept Quim, R Eng Agron Andrei Cristian Ferreira S-N, BR-88040900 Florianopolis, SC, Brazil

[3] Univ Fed Alagoas, Inst Quim & Biotecnol, Av Lourival Melo Mota, BR-57072970 Maceio, AL, Brazil

[4] Univ Fed Maranhao, Dept Fis, Av Portugueses 1966, BR-65080805 Sao Luis, MA, Brazil

[5] Univ Fed Goias, Inst Quim, Av Goias, BR-74001970 Goiania, GO, Brazil

[6] Inst Nacl Ciencia & Tecnol Bioanalit, Caixa Postal 6154, BR-13083970 Campinas, SP, Brazil

来源：

ELECTROANALYSIS | 2023年 / 35卷 / 05期

关键词：

Supramolecular Chemistry; Multi-walled Carbon Nanotubes; Rutin; Host-guest; Square Wave Voltammetry; Flavonoids; Pharmaceutical Compounds; BETA-CYCLODEXTRIN; SENSITIVE DETERMINATION; GRAPHENE OXIDE; SENSOR; ELECTRODE; PHTHALOCYANINE; OXIDATION;

D O I：

10.1002/elan.202200390

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Here, we report multiwalled carbon nanotubes (MWCNTs) functionalized with gamma-cyclodextrins (gamma CD) as a novel electrochemical strategy for Rutin determination, showing superior performance than beta-cyclodextrins (beta CD) 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.

引用

页数：11

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