Insights of nanomaterials integrated analytical approaches for detection of plant hormones in agricultural and environmental samples

Raval, Juhi B.; Mehta, Vaibhavkumar N.; Singhal, Rakesh Kumar; Basu, Hirakendu; Jha, Sanjay Kumar; Kailasa, Suresh Kumar

doi:10.1016/j.teac.2023.e00205

Cited by 15 publications

(3 citation statements)

References 81 publications

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“…Recently, there has been a significant focus on the advancement of nanosensor technology because of its high sensitivity, rapid response, and ability to detect various analytes. , Among the various metallic nanoparticles explored for sensor applications, gold nanoparticles (AuNPs) have emerged as a promising candidate for environmental and biological samples due to their selective, low-cost, and remarkable optical properties for analysis. − By exploiting the strong surface plasmon resonance (SPR) of AuNPs, a colorimetric assay based on AuNPs has been developed since the SPR peak undergoes a shifting and broadening as a result of color change due to the aggregation and dispersion of colloidal particles; thus, a colorimetric assay based on AuNPs can be utilized as an indicator of the presence or absence of target analytes. , Several literature studies have reported that the aggregation of AuNPs can be used to detect analytes such as histamine. , The prominent colorimetric changes and its advantage of an easy-to-use platform pave the way for in-field analysis. However, these approaches involve sequential processes in functionalizing their sensor in response to target analytes and require a long incubation time during reaction.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of PEGylated Gold Nanoparticles for Enhanced Colorimetric Detection of Histamine

Omping,

Unabia,

Reazo

et al. 2024

ACS Omega

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Histamine is among the biogenic amines that are formed during the microbial decarboxylation of amino acids in various food products, posing a significant threat to both food safety and human health. Herein, we present a one-step synthesis of PEGylated gold nanoparticles (PEG-AuNPs) for rapid, simple, and cost-effective colorimetric histamine detection. PEG-AuNPs' surface plasmon resonance (SPR) range at 520−530 nm with a hydrodynamic size distribution of 20−40 nm. Fourier transform infrared (FT-IR) spectra confirmed the reduction of AuNPs at 1645 cm −1 along with the other observed peaks at 2870, 1350, and 1100 cm −1 as a strong evidence for the presence of PEG. Upon the addition of histamine to the PEG-AuNP solution, transmission electron microscopy (TEM) highlighted the aggregation of nanoparticles. In addition, red shifting and a decrease in the absorbance of the SPR peak along with the appearance of an additional peak at ∼690 nm was observed in the PEG-AuNP absorption spectra in the presence of histamine. Increasing the PEG concentration in the gold colloids leads to the formation of a protective barrier around the surface of nanoparticles, which influences the colloidal stability by impeding the aggregation of PEG-AuNPs upon histamine addition. The minimum colorimetric response of PEG-AuNPs to histamine concentration is 30 ppm, as assessed by the naked eye. The absorption ratio (A 690 /A 526 ) showed a linear dynamic range from 20 to 100 ppm with a limit of detection of 9.357 μM. Additionally, the assay demonstrates a commendable selectivity toward histamine analyte.

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Section: Introductionmentioning

confidence: 99%

Facile Synthesis of PEGylated Gold Nanoparticles for Enhanced Colorimetric Detection of Histamine

Omping,

Unabia,

Reazo

et al. 2024

ACS Omega

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“…However, these techniques are expensive, time‐consuming, need sample preparation, and are highly sophisticated. Compared with these techniques, fluorescence spectroscopy gives a fast response, requires less time for analysis, has easy sample preparation, and gives accurate results [20, 21]. So, taking advantage of these factors, in this study, molybdenum nanoclusters were integrated with fluorescence spectroscopy for the detection of NS and K + ions via a turn‐off–on mechanism.…”

Section: Introductionmentioning

confidence: 99%

Fluorescence ‘turn‐off–on’ assays for neomycin sulphate and K⁺ ions with orange‐red fluorescent molybdenum nanoclusters

Sadhu,

Jha,

Park

et al. 2024

Luminescence

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Fluorescent metal nanoclusters (MNCs) have found extensive application in recognizing molecular species. Here, orange‐red fluorescent Arg–A. paniculata–MoNCs were synthesized using Andrographis paniculata leaf extract, arginine as a ligand, and MoCl5 as a metal precursor. The Arg–A. paniculata–MoNCs complex exhibited a quantum yield (QY) of 16.91% and excitation/emission wavelengths of 400/665 nm. The synthesized Arg–A. paniculata–MoNCs successfully acted as a probe for assaying neomycin sulphate (NS) via fluorescence turn‐off and K+ ions via fluorescence turn‐on mechanisms, respectively. Moreover, the developed probe was effectively used to develop a cellulose paper strip‐based sensor for detection of NS and K+ ions. Arg–A. paniculata–MoNCs demonstrated great potential for sensing NS and K+ ions, with concentration ranges of 0.1–80 and 0.25–110 μM for NS and K+ ions, respectively. The as‐synthesized Arg–A. paniculata–MoNCs efficiently detected NS and K+ ions in food and biofluid samples, respectively.

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“…In addition, the high surface area of nanomaterials can improve the assembly of biorecognition elements on the electrode surface. [19] Carbon nitride (C 3 N 4 ) has attracted attention for its potential applications in fields such as photocatalysis, energy storage, and electronic devices. [20,21] C 3 N 4 is a two-dimensional material composed of carbon and nitrogen atoms arranged in a hexagonal lattice structure.…”

Section: Introductionmentioning

confidence: 99%

Polydopamine Modified Carbon Nitride and PAMAM Assembled Electrochemical Immunosensor for Detection of Indole‐3‐Acetic Acid

Zhang,

Li,

et al. 2024

ChemElectroChem

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Indole‐3‐acetic acid (IAA) assumes a pivotal role as a phytohormone of utmost importance, intricately orchestrating the nuanced processes associated with the growth and developmental trajectories of botanical organisms. In this study, we have designed and fabricated a label‐free electrochemical impedance immunosensor for the precise detection of IAA. The detection strategy predominantly relied upon polydopamine modified carbon nitride (C3N4) nanosheets (PCN) and polyamidoamine (PAMAM) dendrimer. Through the modification with PCN and PAMAM, the electrode has increased the active area and enhanced the immobilization capacity of antibodies for IAA. The immunosensor‘s ability to capture IAA was significantly improved by enhancing the immunoreaction between the antibody and antigen. This enhancement led to an increased response in the electrochemical behavior of the Fe(CN)63−/4− redox probe. The impedance immunosensor developed exhibits remarkable sensitivity, exceptional selectivity, and consistent performance in the detection of IAA. This assay method, with the potential to replace antibodies, could offer an alternative approach for detecting various phytohormones.

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Insights of nanomaterials integrated analytical approaches for detection of plant hormones in agricultural and environmental samples

Cited by 15 publications

References 81 publications

Facile Synthesis of PEGylated Gold Nanoparticles for Enhanced Colorimetric Detection of Histamine

Facile Synthesis of PEGylated Gold Nanoparticles for Enhanced Colorimetric Detection of Histamine

Fluorescence ‘turn‐off–on’ assays for neomycin sulphate and K⁺ ions with orange‐red fluorescent molybdenum nanoclusters

Polydopamine Modified Carbon Nitride and PAMAM Assembled Electrochemical Immunosensor for Detection of Indole‐3‐Acetic Acid

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Insights of nanomaterials integrated analytical approaches for detection of plant hormones in agricultural and environmental samples

Cited by 15 publications

References 81 publications

Facile Synthesis of PEGylated Gold Nanoparticles for Enhanced Colorimetric Detection of Histamine

Facile Synthesis of PEGylated Gold Nanoparticles for Enhanced Colorimetric Detection of Histamine

Fluorescence ‘turn‐off–on’ assays for neomycin sulphate and K+ ions with orange‐red fluorescent molybdenum nanoclusters

Polydopamine Modified Carbon Nitride and PAMAM Assembled Electrochemical Immunosensor for Detection of Indole‐3‐Acetic Acid

Contact Info

Product

Resources

About

Fluorescence ‘turn‐off–on’ assays for neomycin sulphate and K⁺ ions with orange‐red fluorescent molybdenum nanoclusters