Soluble tetraaminophthalocyanines indium functionalized graphene platforms for rapid and ultra-sensitive determination of rutin in Tartary buckwheat tea

Shi, Yanmei; Chao, Liqin; Mei, Lin; Chen, Zhihong; Li, Xiumin; Miao, Mingsan

doi:10.1016/j.foodcont.2021.108550

Cited by 19 publications

(7 citation statements)

References 54 publications

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“…4c) and the ΔE p,QC = (E pa,QC -E pc,QC ) was greater than the value of 59/n mV expected for a reversible system, suggesting its quasi-reversible adsorption-controlled process (Fig. 4a) [27].…”

Section: Resultsmentioning

confidence: 80%

Sensitively electrochemical determination of quercetin and folic acid with cobalt nanoparticle functionalized multi-walled carbon nanotube

Xu,

Gao,

Tao

et al. 2024

Preprint

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A nanocomposite of cobalt nanoparticle (CoNPs) functionalized carbon nanotube (Co@CNT) was prepared to be modified on glassy carbon electrode (Co@CNT/GCE). Characterization indicates the morphology of Co@CNT is CoNPs adhering on CNTs. As the nano-interface, Co@CNT processes large surface area, highly catalytic activity and efficient electron transfer, makes Co@CNT/GCE exhibiting satisfactory electrochemical response toward quercetin (QC) and folic acid (FA). pH investigation indicates the same number of electron and proton involves in the redox process of the analytes, the optimized pH value for the detection of FA and QC is 7.0 and 3.0, respectively. The saturated absorption capacity (Γ*) and catalytic rate constant (kcat) of Co@CNT/GCE for QC and FA are calculated as 1.76×10− 9, 3.94×10− 10 mol∙cm− 2 and 3.04×102, 0.569×102 M− 1∙s− 1. The linear range for both of FA and QC is estimated to be 5.0 nM-10 µM, the LODs (3σ/s) were calculated as 2.30 nM and 2.50 nM, respectively. The contents of FA and QC in real samples determined by Co@CNT/GCE are approximate with the results determined by HPLC. The recoveries were in the range of 90.5%~114% and the total RSD was lower than 8.67%, further confirms the reliability of the proposed electrode for the practical detection.

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Section: Resultsmentioning

confidence: 80%

Sensitively electrochemical determination of quercetin and folic acid with cobalt nanoparticle functionalized multi-walled carbon nanotube

Xu,

Gao,

Tao

et al. 2024

Preprint

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“…AuNPs-HCNT/GCE [47] 81 nM 1.0 × 10 −7 -3.1 × 10 −5 M CV PdPc-MWCNT/GCE [48] 75 nM 1.0 × 10 −7 -5.1 × 10 −5 M CA N-MCS@GO/GCE [49] 50 nM 5.0 × 10 −7 -1.9 × 10 −4 M DPV PtNP-rGO/GCE [50] 10 nM 5.0 × 10 −8 -1 × 10 −5 M DPV Au-Ag nanorings/NG [51] 10 nM 5.0 × 10 −7 -2.4 × 10 −4 M DPV [Mn III Mn II (Ldtb)(µ-OAc) 2 ] BPh 4 [52] 17.5 nM 9.99 × 10 −7 -6.54 × 10 −5 M SWV rGO-InTAPc/GCE [53] 2.0 nM 5.0 × 10 −9 -1.0 × 10 −4 M DPV PC/CoWO 4 /GCE [54] 0.45 ng/mL 5-5000 ng/mL DPV CAU−1/MWCNT/GCE (This work) 0.67 nM 1.0 × 10 −9 -3.0 × 10 −6 M DPV AuNPs-HCNTs: gold nanoparticle-decorated helical carbon nanotube nanocomposites; PdPc-MWCNTs: palladium phthalocyanine-multiwalled carbon nanotube; CA: chronoamperometry; N-MCS: N-doped mesoporous carbon nanospheres; PtNP: platinum nanoparticle; NG: N-doped graphene; [Mn III Mn II (Ldtb)(µ-OAc) 2 ] BPh 4 : mixed-valence diacetate-bridged manganese complex; SWV: square wave voltammograms; rGO-InTAPc: phthalocyanine indium-decorated reduced graphene oxide; PC: porous carbon.…”

Section: Rutin Sensors Lod Linear Range Detection Measuresmentioning

confidence: 99%

Ultrasensitive Determination of Natural Flavonoid Rutin Using an Electrochemical Sensor Based on Metal-Organic Framework CAU−1/Acidified Carbon Nanotubes Composites

Tang

Lin

et al. 2022

Molecules

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Rutin, a natural flavonol glycoside, is widely present in plants and foods, such as black tea and wheat tea. The antioxidant and anti-inflammatory effects of flavonoids are well known. In this study, a new electrochemical rutin sensor was developed using multiwalled carbon nanotubes/aluminum-based metal–organic frameworks (MWCNT/CAU-1) (CAU−1, a type of Al-MOF) as the electrode modification material. The suspension of multiwalled carbon tubes was dropped on the surface of the GCE electrode to make MWCNT/GCEs, and CAU−1 was then attached to the electrode surface by electrodeposition. MWCNTs and CAU−1 were characterized using scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). Due to the synergistic effect of CAU−1 and MWCNT-COOH, the prepared sensor showed an ultrasensitive electrochemical response to rutin. Under optimized conditions, the sensor showed a linear relationship between 1.0 × 10−9~3.0 × 10−6 M with a detection limit of 6.7 × 10−10 M (S/N = 3). The sensor also showed satisfactory stability and accuracy in the detection of real samples.

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“…12 The effect of RUT on the increase in high-density lipoprotein (HDL) cholesterol and triacylglycerol levels in hyperlipidemic rats was investigated, and it was determined that RUT caused the maximum decrease in the cholesterol level. 14 When a literature review was conducted on the studies performed for RUT analysis, it was seen that the available studies are based on electrochemical nanosensors, [15][16][17][18][19][20][21][22][23][24][25][26][27] capillary electrophoresis, 28 electrochemiluminescence, 29 high-performance liquid chromatography (HPLC) with an ultraviolet (UV) detector, 8,30 HPLC with a diode array detector, 31 HPLC with chemiluminescence (CL) detection, 32 and molecularly imprinted polymer (MIP)-based electrochemical sensors. [33][34][35][36] Although the mentioned studies offer advantages such as high sensitivity for RUT determination, the most important challenges of chromatographic methods are that they require highly skilled operators, expensive equipment, and labor-intensive procedures.…”

Section: Introductionmentioning

confidence: 99%

A novel electrochemical sensor based on a molecularly imprinted polymer for highly selective and sensitive determination of rutin from herbal supplements and plant extracts

Hurkul,

Yayla,

Cetinkaya

et al. 2024

Anal. Methods

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Soluble tetraaminophthalocyanines indium functionalized graphene platforms for rapid and ultra-sensitive determination of rutin in Tartary buckwheat tea

Cited by 19 publications

References 54 publications

Sensitively electrochemical determination of quercetin and folic acid with cobalt nanoparticle functionalized multi-walled carbon nanotube

Sensitively electrochemical determination of quercetin and folic acid with cobalt nanoparticle functionalized multi-walled carbon nanotube

Ultrasensitive Determination of Natural Flavonoid Rutin Using an Electrochemical Sensor Based on Metal-Organic Framework CAU−1/Acidified Carbon Nanotubes Composites

A novel electrochemical sensor based on a molecularly imprinted polymer for highly selective and sensitive determination of rutin from herbal supplements and plant extracts

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