Cyanazine herbicide monitoring as a hazardous substance by a DNA nanostructure biosensor

Karimi-Maleh, Hassan; Karimi, Fatemeh; Fu, Li; Sanati, Afsaneh L.; Alizadeh, Marzieh; Karaman, Ceren; Orooji, Yasin

doi:10.1016/j.jhazmat.2021.127058

Cited by 301 publications

(54 citation statements)

References 31 publications

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“…Nanomaterials showed many advantages in different branches of science [17][18][19][20][21][22][23][24]. In recent years, nanostructured materials, including metal oxides nanoparticles, have been used to fabricate the modified electrodes for biological, pharmaceutical, energy and environmental purposes [25][26][27][28][29][30][31][32][33]. Among the various nanomaterials, titanium dioxide (TiO2) has outstanding properties such as appropriate sensitivity and stability for its strong affinity to a phosphate group, photocatalytic effect, porosity, steadiness, and high specific surface areas [34,35].…”

Section: Scheme 1 the Chemical Structure Of Olopatadinementioning

confidence: 99%

Construction of a simple and selective electrochemical sensor based on Nafion/TiO2 for the voltammetric determination of olopatadine

Mehmandoust

Erk

2021

J. Electrochem. Sci. Eng.

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A selective and facile voltammetric method based on titanium dioxide nanoparticles and Nafion (Nafion/TiO2 NPs) on the screen-printed electrode (SPE) was proposed for olopatadine determination. Followed by the synthesis of TiO2 nanoparticles, various methods, including high-resolution transmission electron microscopy (HR-TEM), ultraviolet-visible spectroscopy (UV-Vis), energy-dispersive X-ray (EDX) Raman spectrum, and electrochemical impedance spectroscopy (EIS) were utilized to characterize the nanomaterials. Nafion/TiO2 on the screen-printed electrode (NFN/TiO2/SPE) was used to determine olopatadine in concentration ranges of 0.01 to 0.07 and 0.07 to 14.6 µM with a limit of quantification as low as 7.0 nM, via differential pulse voltammetry technique. The NFN/TiO2/SPE offered a high-performance ability to determine olopatadine in the eye drop sample with satisfactory recovery data of 98.2–99.0 %. Also, the developed electrode showed good reproducibility, repeatability, and high selectivity features. The obtained results indicate that NFN/TiO2/SPE could be utilized as an appropriate candidate for electrochemical olopatadine sensing.

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Section: Scheme 1 the Chemical Structure Of Olopatadinementioning

confidence: 99%

Construction of a simple and selective electrochemical sensor based on Nafion/TiO2 for the voltammetric determination of olopatadine

Mehmandoust

Erk

2021

J. Electrochem. Sci. Eng.

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“…Generally speaking, nanomaterials are most commonly used for the modification of sensor electrodes [29][30][31][32]. Nanomaterials exhibit some properties that are unique from microscopic particles and macroscopic objects because of their particle size up to the nanoscale and the special effects of their large surfaces; for example, surface effect, volume effect, quantum size effect, and macroscopic quantum tunneling effect.…”

Section: Introductionmentioning

confidence: 99%

Conductive Hydrogel-Based Electrochemical Sensor: A Soft Platform for Capturing Analyte

Lai

2021

Chemosensors

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Electrode modifications for electrochemical sensors attract a lot of attention every year. Among them, hydrogels are a relatively special class of electrode modifier. Since hydrogels often contain polymers, even though they are conductive polymers, they are not ideal electrode modifiers because of their poor conductivity. However, the micro-aqueous environment and the three-dimensional structure of hydrogels are an excellent platform for immobilizing bioactive molecules and maintaining their activity. This gives the hydrogel-modified electrochemical sensor the potential to perform specific recognition. At the same time, the rapid development of nanomaterials also makes the composite hydrogel have good electrical conductivity. This has led many scientists to become interested in hydrogel-based electrochemical sensors. In this review, we summarize the development process of hydrogel-based electrochemical sensors, starting from 2000. Hydrogel-based electrochemical sensors were initially used only as a carrier for biomolecules, mostly for loading enzymes and for specific recognition. With the widespread use of noble metal nanoparticles and carbon materials, hydrogels can now be used to prepare enzyme-free sensors. Although there are some sporadic studies on the use of hydrogels for practical applications, the vast majority of reports are still limited to the detection of common model molecules, such as glucose and H2O2. In the review, we classify hydrogels according to their different conducting strategies, and present the current status of the application of different hydrogels in electrochemical sensors. We also summarize the advantages and shortcomings of hydrogel-based electrochemical sensors. In addition, future prospects regarding hydrogel for electrochemical sensor use have been provided at the end.

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“…Voltammetric techniques, because of their quick reaction, high sensitivity and selectivity, and electrochemical techniques, particularly square wave voltammetry (SWV) and differential pulse voltammetry (DPV), have been used [18][19][20]. According to previous research, the performances of the electrochemical methods described are more appropriate than the other methods due to merit, such as a quick response to the analyte and the selectability in the presence of interfering agents [21][22][23][24][25][26]. Modifying electrode surfaces can remarkably enhance the surface sensitivity with appropriate stability and reproducibility [27][28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Sensitive and Selective Electrochemical Detection of Epirubicin as Anticancer Drug Based on Nickel Ferrite Decorated with Gold Nanoparticles

et al. 2021

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The accurate and precise monitoring of epirubicin (EPR), one of the most widely used anticancer drugs, is significant for human and environmental health. In this context, we developed a highly sensitive electrochemical electrode for EPR detection based on nickel ferrite decorated with gold nanoparticles (Au@NiFe2O4) on the screen-printed electrode (SPE). Various spectral characteristic methods such as Fourier transform infrared spectra (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), ultraviolet-visible spectroscopy (UV-Vis), energy-dispersive X-ray spectroscopy (EDX) and electrochemical impedance spectroscopy (EIS) were used to investigate the surface morphology and structure of the synthesized Au@NiFe2O4 nanocomposite. The novel decorated electrode exhibited a high electrocatalytic activity toward the electrooxidation of EPR, and a nanomolar limit of detection (5.3 nM) was estimated using differential pulse voltammetry (DPV) with linear concentration ranges from 0.01 to 0.7 and 0.7 to 3.6 µM. The stability, selectivity, repeatability reproducibility and reusability, with a very low electrode response detection limit, make it very appropriate for determining trace amounts of EPR in pharmaceutical and clinical preparations.

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Cyanazine herbicide monitoring as a hazardous substance by a DNA nanostructure biosensor

Cited by 301 publications

References 31 publications

Construction of a simple and selective electrochemical sensor based on Nafion/TiO2 for the voltammetric determination of olopatadine

Construction of a simple and selective electrochemical sensor based on Nafion/TiO2 for the voltammetric determination of olopatadine

Conductive Hydrogel-Based Electrochemical Sensor: A Soft Platform for Capturing Analyte

Sensitive and Selective Electrochemical Detection of Epirubicin as Anticancer Drug Based on Nickel Ferrite Decorated with Gold Nanoparticles

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