Graphene oxide-based biosensors for detection of lung cancer: A review

Results in Chemistry, Год журнала: 2023, Номер 7, С. 101300 - 101300

Опубликована: Дек. 31, 2023

Lung cancer is one of the most common diseases worldwide today and has highest mortality rate among cancers. Therefore, early diagnosis this disease special importance. Due to fact that methods for detecting lung are costly time-consuming, providing cheaper faster received attention. With significant development nanotechnology in recent years various nanomaterials, activities have been carried out field. Recent studies show graphene oxide due their unique properties, a high potential design biosensors detect cancer.

Язык: Английский

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Novel nanocomposite zinc phosphate/ polyvinyl alcohol / carboxymethyl cellulose: Synthesis, characterization and investigation of antibacterial and anticorrosive properties

Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 9, С. 100591 - 100591

Опубликована: Дек. 23, 2023

in this paper, two novel Composites zinc phosphate/Polyvinyl alcohol (ZnP-PVA) and Zinc Phosphate/Polyvinyl alcohol/Carboxymethyl cellulose (ZnP-PVA/CMC) had been synthesized by a low-temperature one-step ultrasonic-template assisted route. For characterization of samples, Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), Transmission (TEM), Fourier-transform infrared spectroscopy (FTIR), Energy Dispersive X-Ray Analysis (EDAX), MIC/MBC EIS were used. FTIR spectra the composite confirmed functional groups present PVA/CMC/Zn2+ ions infraction also SEM TEM images showed composites have layered structure with rectangular microcrystals (2.8 mm width ZnP-PVA was able 100% to completely remove bacteria tested sample. As results show, Anti-corrosion efficiency inhibitor is 92.8% at 2 h, 70.6% 4 68.0% 24 h aslo ZnP-PVA/CMC 67.7% 45.6% 50.5% 24h, has investigated.

Язык: Английский

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Preparation and characterization of anticorrosive and antibacterial coatable nanocomposite based on zinc phosphate modified by Hydroxy Apatite/alginate: Investigation of electrochemical impedance spectroscopy (EIS)

Case Studies in Chemical and Environmental Engineering, Год журнала: 2024, Номер 9, С. 100694 - 100694

Опубликована: Март 18, 2024

In This study, three new surface-modified antibacterial and anticorrosive nanocomposites (zinc Phosphate- Polyvinyl Pyrrolidone, Zinc Pyrrolidone/Hydroxy Apatite Apatite/Alginate) were synthesized in low-temperature by facile efficient method. We crosslink Alg with Zn2+ Ca2+ to make it insoluble enhancing of their physical biological properties Apatite/Alginate). Nanocrystals characterized (XRD), (FT-IR), (EDX), (SEM) (TEM). the TEM image showed that core shell nanocrystal had good dispersion a particle size 8–36, 12–38 10–45 nm, respectively. Antibacterial rate Apatite/Alginate NPs reached near 100%. To analyze EIS results obtained from equivalent circuits, parameters such as Rct, CPEdl, Rf, n, CPEf, Rt extracted. Nyquist diagrams demonstrated sample better protection than Pyrrolidone sample, at all immersion time. The phase angle (-θ 11°/96 h) was greater value compared Alginate 10°/96 4.2°/96 h), indicating transition capacitive inductive behavior longer times.

Язык: Английский

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Silver@copper-polyaniline nanotubes: Synthesis, characterization and biosensor analytical study

Results in Chemistry, Год журнала: 2024, Номер 9, С. 101614 - 101614

Опубликована: Июнь 27, 2024

We introduce silver-copper nanoparticles incorporated into polyaniline (PANI) nanotubes using a straightforward and efficient reduction process. In this regard, PANI with amine groups were fabricated through oxidation polymerization, followed by the attachment of Ag Cu precursors to enable synthesis Ag-Cu bimetallic (NPs) on pre-formed use hydrazine as reducing agent. The structural characterization synthesized NPs was investigated UV–Vis spectrophotometer (UV–Vis), Dark-field emission, (EDX), X-ray diffraction (XRD) field emission (FESEM), while electrochemical properties estimated (CV) differential pulse voltammetry (DPV). findings indicated that present in nanoscale range, well-dispersed, attached surface nanotubes. Electrochemical investigations revealed Ag-Cu@PANI nanotube electrode demonstrated electrooxidation dopamine hydroquinone without any interfering reactions, suggesting its potential an biosensor for simultaneous detection hydroquinone. proposed NPs-based connected concurrently identify hydroquinone, illustrating moo distinguish Confinements 0.46 µM 0.23 mM separately. Additionally, manufactured sensor identified wide direct run (5–25 µM), (0.5–2.5 mM). Alongside these promising comes about, actualized great solidness reproducibility, making it favorable stage biosensing

Язык: Английский

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Fabrication and investigating of a nano-structured electrochemical sensor to measure the amount of atrazine pollution poison in water and wastewater

Chemical Data Collections, Год журнала: 2024, Номер 51, С. 101135 - 101135

Опубликована: Апрель 2, 2024

Язык: Английский

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