Preparation, antibacterial activity, and electrocatalytic detection of hydrazine based on biogenic CuFeO<sub>2</sub>/PANI nanocomposites synthesized using <i>Aloe barbadensis miller</i>

Singh, Pooja; Singh, Kshitij RB; Verma, Rajendra Kumar; Prasad, Priyanka; Verma, Ranjana; Das, Subha Narayan; Singh, Jay; Singh, Ravindra Pratap

doi:10.1039/d2nj00913g

Cited by 38 publications

(23 citation statements)

References 46 publications

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“…Furthermore, the average crystallite diameter ( d ) values that were calculated using Scherrer’s equation [Equation (1)] are ∼41.8 nm for the Au-Ni/AC nanoparticles using the full width at half maximum (FWHM) of the most intense peak at 43.7°. β is the FWHM value (radians), ‘λ’ is 1.5406 Å, which is the CuKα wavelength, and θ is the Bragg diffraction [ 61 , 62 ]. D = 0.9λ/(β cos θ) …”

Section: Resultsmentioning

confidence: 99%

Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

et al. 2022

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The yellow rust of wheat (caused by Puccinia striiformis f. sp. tritici) is a devastating fungal infection that is responsible for significant wheat yield losses. The main challenge with the detection of this disease is that it can only be visually detected on the leaf surface between 7 and 10 days after infection, and by this point, counter measures such as the use of fungicides are generally less effective. The hypothesis of this study is to develop and use a compact electrochemical-based biosensor for the early detection of P. striiformis, thus enabling fast countermeasures to be taken. The biosensor that was developed consists of three layers. The first layer mimics the wheat leaf surface morphology. The second layer consists of a sucrose/agar mixture that acts as a substrate and contains a wheat-derived terpene volatile organic compound that stimulates the germination and growth of the spores of the yellow rust pathogen P. s. f. sp. tritici. The third layer consists of a nonenzymatic glucose sensor that produces a signal once invertase is produced by P. striiformis, which comes into contact with the second layer, thereby converting sucrose to glucose. The results show the proof that this innovative biosensor can enable the detection of yellow rust spores in 72 h.

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Section: Resultsmentioning

confidence: 99%

Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

et al. 2022

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“…Alternatively, electrochemical methods offer an attractive approach for hydrazine measurements due to their low cost, simple preparation, rapid response, high sensitivity, and potential as portable devices. − For these reasons, we selected electrochemical methods for hydrazine measurements for this present study. There are a plethora of electroanalytical methods that have been developed to provide electrochemical sensing of hydrazine based on the platform of the modified carbon electrode. − In addition, we have reported the utilization of the composite material of electrochemically reduced graphene oxide (ErGO) and conductive polymer-modified electrode for uric acid detection, but it remains interesting to explore our developed sensing platform for the detection of novel electroactive substance hydrazine. We expect that our developed sensing platform could be a versatile electrode for the detection of different electroactive substances.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensors Based on a Composite of Electrochemically Reduced Graphene Oxide and PEDOT:PSS for Hydrazine Detection

Rahman

Rafi

Putra³

et al. 2023

ACS Omega

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In this study, hydrazine sensors were developed from a composite of electrochemically reduced graphene oxide (ErGO) and poly (3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), deposited onto a glassy carbon electrode (GCE). The structural properties, electrochemical characterization, and surface morphologies of this hydrazine sensor were characterized by Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM). In addition, the proposed hydrazine sensor also demonstrates good electrochemical and analytical performance when investigated using cyclic voltammetry (CV), differential pulse voltammetry (DPV), and amperometry techniques under optimal parameters. Using these investigated parameters, DPV and amperometry were chosen as techniques for hydrazine measurements and showed a linear range of concentration in the range of 0.2−100 μM. The obtained limits of detection and limits of quantitation for hydrazine measurements were 0.01 and 0.03 μM, respectively. In addition, the proposed sensor demonstrated good reproducibility and stability in hydrazine measurements in eight consecutive days. This fabricated hydrazine sensor also exhibited good selectivity against interference from Mg 2+ , K + , Zn 2+ , Fe 2+ , Na + , NO 2 − , CH 3 COO − , SO 4 2− , Cl − , ascorbic acid, chlorophenol, and triclosan and combined interferences, as well as it depicted %RSD values of less than 5%. In conclusion, this proposed sensor based on GCE modified with ErGO/PEDOT:PSS displays exceptional electrochemical performance for use in hydrazine measurements and have the potential to be employed in practical applications.

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“…This in turn could enable point-of-care testing and determine agricultural and environmental toxins, namely heavy metals, pesticides, herbicides, etc. In addition, these optical materials could reduce the cost of sensors and make the sensors portable, sensitive, selective, reusable, and simple [8][9][10][11][12]. Therefore, this special issue (SI) entitled 'Smart and intelligent optical materials for sensing applications', published by Luminescence, Wiley focuses on the recent advancement of smart and intelligent optical materials for the fabrication of sensor technology and its use in numerous fields such as pharmaceutical, biomedical, and environmental areas.…”

Section: Introductionmentioning

confidence: 99%

Smart and intelligent optical materials for sensing applications

Singh

2023

Luminescence

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This special issue (SI) entitled 'Smart and intelligent optical materials for sensing applications', published by Luminescence, Wiley focuses on the recent advancement of smart and intelligent optical materials for the fabrication of sensor technology for use in numerous fields such as pharmaceutical, biomedical, and environmental. Also, detailed highlights of their prospects in the fields, for example, of personalized health care, wearable devices, and plant stress monitoring are given. This SI includes 46 peer-reviewed articles, of which 15 are reviews written by well established researchers with expertise in the field, and the remaining 31 are research articles from world-leading scientists.

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Preparation, antibacterial activity, and electrocatalytic detection of hydrazine based on biogenic CuFeO₂/PANI nanocomposites synthesized using Aloe barbadensis miller

Abstract: This work focuses on the biogenic synthesis of CuFeO2 nanocomposites (B-CuFeO2 NCs) and B-CuFeO2/polyaniline (PANI) NCs synthesized by Aloe barbadensis miller gel extracts for demonstrating antibacterial activity and utility as...

Cited by 38 publications

References 46 publications

Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

Electrochemical Sensors Based on a Composite of Electrochemically Reduced Graphene Oxide and PEDOT:PSS for Hydrazine Detection

Smart and intelligent optical materials for sensing applications

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Preparation, antibacterial activity, and electrocatalytic detection of hydrazine based on biogenic CuFeO2/PANI nanocomposites synthesized using Aloe barbadensis miller

Abstract: This work focuses on the biogenic synthesis of CuFeO2 nanocomposites (B-CuFeO2 NCs) and B-CuFeO2/polyaniline (PANI) NCs synthesized by Aloe barbadensis miller gel extracts for demonstrating antibacterial activity and utility as...

Cited by 38 publications

References 46 publications

Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

Multi-Layer Biosensor for Pre-Symptomatic Detection of Puccinia strifformis, the Causal Agent of Yellow Rust

Electrochemical Sensors Based on a Composite of Electrochemically Reduced Graphene Oxide and PEDOT:PSS for Hydrazine Detection

Smart and intelligent optical materials for sensing applications

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Preparation, antibacterial activity, and electrocatalytic detection of hydrazine based on biogenic CuFeO₂/PANI nanocomposites synthesized using Aloe barbadensis miller