A Simple and Rapid Method Based on Anti-aggregation of Silver Nanoparticles for Detection of Poly(diallyldimethylammonium chloride) in Tap Water

Trisaranakul, Wichaya; Chompoosor, Apiwat; Maneeprakorn, Weerakanya; Nacapricha, Duangjai; Choengchan, Nathawut; Teerasong, Saowapak

doi:10.2116/analsci.32.769

Cited by 20 publications

(11 citation statements)

References 24 publications

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“…14 Silver nanoparticle (AgNP) sensors have also become popular because they can afford sharper extinction bands with higher extinction coefficients. 1,[15][16][17][18][19][20] Owing to the vase-like shape required to accommodate a guest molecule, calixarene has been used as the receptor molecule for AgNPs. [21][22][23] For example, AgNPs coated with calix [4]arene-p-tetrasulfonate (CAS) in aqueous solutions change their color from yellow to red by aggregation through bridging of the AgNPs by inclusion of a guest molecule, such as histidine 21 and isocarbophos 22 to CAS molecules on different particles.…”

Section: Introductionmentioning

confidence: 99%

Multi-coloration of Calixarene-coated Silver Nanoparticles for the Visual Discrimination of Metal Elements

Abe

Iki

2017

ANAL. SCI.

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Upon mixing with metal ions such as Cd II , Tb III , Cu II , Ni II , Pb II , Zn II , and Co II at pH 10.0, solutions of silver nanoparticles (AgNPs) coated with calix[4]arene-p-tetrasulfonate (CAS-AgNP) exhibited multi-coloration from yellow to orange, violet, and green, depending on the metal elements present, which allowed for visual discrimination of the ions. This is contrary to the AgNP sensors exhibiting a uniform color change from yellow to red upon binding of a receptor molecules at the surface of AgNPs to an analyte. The TEM images of the samples obtained from the resultant solution showed two regions. First, a region where CAS-AgNPs assembled on the surface of the metal hydroxides. The size of the hydroxide crystals varied from 50 to 200 nm with the type of metal element present, and roughly correlated with the extinction band of the aggregated AgNPs. Second, the amorphous region in which CAS-AgNPs dispersed randomly. The difference in the amount of the crystal region and the area seemed to lead to the multi-coloration.

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Section: Introductionmentioning

confidence: 99%

Multi-coloration of Calixarene-coated Silver Nanoparticles for the Visual Discrimination of Metal Elements

Abe

Iki

2017

ANAL. SCI.

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“…13 In this case, a stabilization effect could be observed upon antigen-antibody interaction, 14,15 resulted from the variation of surface potential (zeta potential). 15 Recently, several colorimetric assays based on MNPs have been developed for the detection of small analytes, [16][17][18] polymers, 19 biomolecules, [20][21][22] and microbes. [23][24][25] Gold nanoparticles (AuNPs) are used in the majority of colorimetric methods because their simple preparation, high chemical stability and well known conjugation protocols.…”

Section: Introductionmentioning

confidence: 99%

Immunoassay for Human IgG Using Antibody-functionalized Silver Nanoparticles

2017

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A simple colorimetric immunoassay for quantification of human immunoglobulin G (hIgG) is herein described. The assay is based on the aggregation inhibition of silver nanoparticles (AgNP) functionalized with hIgG antibody (anti-hIgG) on the surface. The aggregation is measured in terms of attenuance values ratio at 400 and 530 nm (A400/A530). A linear response between A400/A530 and hIgG concentration is observed in the range 25 -200 ng mL -1 , and the detection limit is estimated as 11 ng mL -1 hIgG.

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“…As a result, a UV-Vis spectral change accompanied by a visual color change could be observed. [31][32][33][34][35] Up to now, AgNPs used as a colorimetric sensor for 6-MP detection has not been reported.…”

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confidence: 99%

“…Citrate has three pKa values (3.1, 4.7 and 6.4). 35 When the pH value was below 6.4, the carboxylic groups of citrate were protonated. While the carboxylic groups were deprotonated at pH 6.6.…”

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confidence: 99%

A Facile Colorimetric Sensor for 6-Mercaptopurine Based on Silver Nanoparticles

Duan

Hou

et al. 2020

ANAL. SCI.

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A facile colorimetric method was developed for detecting 6-mercaptopurine (6-MP) using silver nanoparticles (AgNPs). The addition of 6-MP to AgNPs led to the aggregation of AgNPs with a color change from yellow to brown. The ratio between the absorbance at 394 and 530 nm (A394/A530) was used for a quantitative analysis of 6-MP. A linear range of 0 -0.5 μM was obtained with a detection limit of 10 nM. The developed method is cost-effective and simple.

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A Simple and Rapid Method Based on Anti-aggregation of Silver Nanoparticles for Detection of Poly(diallyldimethylammonium chloride) in Tap Water

Cited by 20 publications

References 24 publications

Multi-coloration of Calixarene-coated Silver Nanoparticles for the Visual Discrimination of Metal Elements

Multi-coloration of Calixarene-coated Silver Nanoparticles for the Visual Discrimination of Metal Elements

Immunoassay for Human IgG Using Antibody-functionalized Silver Nanoparticles

A Facile Colorimetric Sensor for 6-Mercaptopurine Based on Silver Nanoparticles

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