Covalent ligation of gold coated iron nanoparticles to the multi-walled carbon nanotubes employing click chemistry

Islam, Md. Rafiqul; Bach, Long Giang; Nga, Tran Thi Viet; Lim, Kwon Taek

doi:10.1016/j.jallcom.2013.01.176

Cited by 14 publications

(7 citation statements)

References 46 publications

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“…The composition of the nanocomposites was further studied by X-ray Diffractive (XRD) analysis. The result (Inset Figure 3 ) presents the XRD patterns of the synthesized nanocomposites, as seen the peaks at 38.20° and 44.40° are assigned to the face centered cubic (fcc) bulk gold planes of (111) and (200), while the diffraction peak at 25.70° is attributed to the graphite crystalline phase of MWCNTs [ 24 , 25 ]. The XRD result indicates that the nanocomposites contained MWCNTs and AuNPs.…”

Section: Methodsmentioning

confidence: 99%

Construction of an Electrochemical Sensor Based on Carbon Nanotubes/Gold Nanoparticles for Trace Determination of Amoxicillin in Bovine Milk

Muhammad

Yusof

Hajian

et al. 2016

Sensors

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In this work, a novel electrochemical sensor was fabricated for determination of amoxicillin in bovine milk samples by decoration of carboxylated multi-walled carbon nanotubes (MWCNTs) with gold nanoparticles (AuNPs) using ethylenediamine (en) as a cross linker (AuNPs/en-MWCNTs). The constructed nanocomposite was homogenized in dimethylformamide and drop casted on screen printed electrode. Field emission scanning electron microscopy (FESEM), energy dispersive X-Ray (EDX), X-Ray diffraction (XRD) and cyclic voltammetry were used to characterize the synthesized nanocomposites. The results show that the synthesized nanocomposites induced a remarkable synergetic effect for the oxidation of amoxicillin. Effect of some parameters, including pH, buffer, scan rate, accumulation potential, accumulation time and amount of casted nanocomposites, on the sensitivity of fabricated sensor were optimized. Under the optimum conditions, there was two linear calibration ranges from 0.2–10 µM and 10–30 µM with equations of Ipa (µA) = 2.88C (µM) + 1.2017; r = 0.9939 and Ipa (µA) = 0.88C (µM) + 22.97; r = 0.9973, respectively. The limit of detection (LOD) and limit of quantitation (LOQ) were calculated as 0.015 µM and 0.149 µM, respectively. The fabricated electrochemical sensor was successfully applied for determination of Amoxicillin in bovine milk samples and all results compared with high performance liquid chromatography (HPLC) standard method.

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Section: Methodsmentioning

confidence: 99%

Construction of an Electrochemical Sensor Based on Carbon Nanotubes/Gold Nanoparticles for Trace Determination of Amoxicillin in Bovine Milk

Muhammad

Yusof

Hajian

et al. 2016

Sensors

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“…Nanoscale materials have been extensively studied with respect to their potential applications and synthesis procedures [1][2][3][4][5][6][7]. Among the research areas, the modification of methods for controlled synthesis of triangular silver nanoplates has attracted a lot of attention in recent years due to the widespread application of silver nanoplates in various fields, such as surface-enhanced Raman scattering (SERS) detection or manufacture of antibacterial agents [8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Controlled Synthesis of Triangular Silver Nanoplates by Gelatin–Chitosan Mixture and the Influence of Their Shape on Antibacterial Activity

Phung

Nguyen

et al. 2019

Processes

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Triangular silver nanoplates were prepared by using the seeding growth approach with the presence of citrate-stabilized silver seeds and a mixture of gelatin-chitosan as the protecting agent. By understanding the critical role of reaction components, the synthesis process was improved to prepare the triangular nanoplates with high yield and efficiency. Different morphologies of silver nanostructures, such as triangular nanoplates, hexagonal nanoprisms, or nanodisks, can be obtained by changing experimental parameters, including precursor AgNO 3 volume, gelatin-chitosan concentration ratios, and the pH conditions. The edge lengths of triangular silver nanoplates were successfully controlled, primarily through the addition of silver nitrate under appropriate condition. As-prepared triangular silver nanoplates were characterized by transmission electron microscopy (TEM), dynamic light scattering (DLS), UV-Vis, Fourier transform infrared spectroscopy (FT-IR), and X-Ray diffraction (XRD). Silver nanoplates had an average edge length of 65-80 nm depending on experimental conditions and exhibited a surface plasma resonance absorbance peak at 340, 450, and 700 nm. The specific interactions of gelatin and chitosan with triangular AgNPs were demonstrated by FT-IR. Based on the characterization, the growth mechanism of triangular silver nanoplates was theoretically proposed regarding the twinned crystal of the initial nanoparticle seeds and the crystal face-blocking role of the gelatin-chitosan mixture. Moreover, the antibacterial activity of triangular silver nanoplates was considerably improved in comparison with that of spherical shape when tested against Gram-positive and Gram-negative bacteria species, with 6.0 ug/mL of triangular silver nanoplates as the MBC (Minimum bactericidal concentration) for Escherichia coli and Vibrio cholera, and 8.0 ug/mL as the MBC for Staphylococcus aureus and Pseudomonas aeruginosa. The MIC (Minimum inhibitory concentration) of triangular Ag nanoplates was 4.0 ug/mL for E. coli, V. cholera, S. aureus, and P. aeruginosa.

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“…The magnetic nanohybrids were found to be highly magnetically sensitive in a colloidal suspension. 91 Palladium NPs of an enhanced electrocatalytic activity were grafted onto ionic liquid-(IL) functionalized CNTs. 92 The resultant Pd@IL(Cl)-CNT catalyst displayed an improved tolerance to poisoning, electrocatalytic activity, and stability compared with Pd NPs immobilized onto CNTs, owing to the effect of IL intrusion.…”

Section: (3 + 2)-cycloadditionmentioning

confidence: 99%

“…The magnetic nanohybrids were found to be highly magnetically sensitive in a colloidal suspension. 91…”

Section: Carbon Nanotubes (Cnts)mentioning

confidence: 99%

Covalent functionalization of 1D and 2D sp²-carbon nanoallotropes – twelve years of progress (2011–2023)

Amjad,

Terzyk,

Boncel

2024

Nanoscale

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Covalent ligation of gold coated iron nanoparticles to the multi-walled carbon nanotubes employing click chemistry

Cited by 14 publications

References 46 publications

Construction of an Electrochemical Sensor Based on Carbon Nanotubes/Gold Nanoparticles for Trace Determination of Amoxicillin in Bovine Milk

Construction of an Electrochemical Sensor Based on Carbon Nanotubes/Gold Nanoparticles for Trace Determination of Amoxicillin in Bovine Milk

Controlled Synthesis of Triangular Silver Nanoplates by Gelatin–Chitosan Mixture and the Influence of Their Shape on Antibacterial Activity

Covalent functionalization of 1D and 2D sp²-carbon nanoallotropes – twelve years of progress (2011–2023)

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Covalent ligation of gold coated iron nanoparticles to the multi-walled carbon nanotubes employing click chemistry

Cited by 14 publications

References 46 publications

Construction of an Electrochemical Sensor Based on Carbon Nanotubes/Gold Nanoparticles for Trace Determination of Amoxicillin in Bovine Milk

Construction of an Electrochemical Sensor Based on Carbon Nanotubes/Gold Nanoparticles for Trace Determination of Amoxicillin in Bovine Milk

Controlled Synthesis of Triangular Silver Nanoplates by Gelatin–Chitosan Mixture and the Influence of Their Shape on Antibacterial Activity

Covalent functionalization of 1D and 2D sp2-carbon nanoallotropes – twelve years of progress (2011–2023)

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Product

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Covalent functionalization of 1D and 2D sp²-carbon nanoallotropes – twelve years of progress (2011–2023)