Synthesis and fabrication of 2D Tungsten trioxide nanosheets based platform for impedimetric sensing of cardiac biomarker

Sandil, Deepika; Srivastava, Saurabh; Khatri, Ritika; Sharma, Kanika; Puri, Nitin K.

doi:10.1016/j.sbsr.2021.100423

Cited by 3 publications

(1 citation statement)

References 41 publications

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“…Nanomaterials made of metal oxides, like other nanomaterials, provide a high specific surface area for immobilization. Among metal oxides, nanoparticles and nanostructures of TiO 2 , ZnO, WO 3 , and others are most often used [51,[139][140][141][142][143][144][145]. The charge transfer resistance R ct in non-faradaic EIS biosensors can tend to infinity if dielectric materials are used for immobilization [146][147][148].…”

Section: Metal Oxides and Dielectricsmentioning

confidence: 99%

Hybrid Impedimetric Biosensors for Express Protein Markers Detection

Sitkov,

Ryabko,

Moshnikov

et al. 2024

Micromachines

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Impedimetric biosensors represent a powerful and promising tool for studying and monitoring biological processes associated with proteins and can contribute to the development of new approaches in the diagnosis and treatment of diseases. The basic principles, analytical methods, and applications of hybrid impedimetric biosensors for express protein detection in biological fluids are described. The advantages of this type of biosensors, such as simplicity and speed of operation, sensitivity and selectivity of analysis, cost-effectiveness, and an ability to be integrated into hybrid microfluidic systems, are demonstrated. Current challenges and development prospects in this area are analyzed. They include (a) the selection of materials for electrodes and formation of nanostructures on their surface; (b) the development of efficient methods for biorecognition elements’ deposition on the electrodes’ surface, providing the specificity and sensitivity of biosensing; (c) the reducing of nonspecific binding and interference, which could affect specificity; (d) adapting biosensors to real samples and conditions of operation; (e) expanding the range of detected proteins; and, finally, (f) the development of biosensor integration into large microanalytical system technologies. This review could be useful for researchers working in the field of impedimetric biosensors for protein detection, as well as for those interested in the application of this type of biosensor in biomedical diagnostics.

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Section: Metal Oxides and Dielectricsmentioning

confidence: 99%

Hybrid Impedimetric Biosensors for Express Protein Markers Detection

Sitkov,

Ryabko,

Moshnikov

et al. 2024

Micromachines

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The Structural Modulation of Amorphous 2D Tungsten Oxide Materials in Magnetron Sputtering

Zhang

Čičmancová

Beneš

et al. 2022

Adv Materials Inter

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Abstract2D oxide materials have gained tremendous attention in the applications. Herein, a synthesis route of 2D WO3 materials via magnetron sputtering is reported. A deposition between 2D monolayers and thin film structure are accomplished according to the temperature of substrate. And 2D monolayers are only formed on a cooled substrate. Ag doping helps to exfoliate 2D WO3 into freestanding monolayers, in which the thickness of 2D monolayer is only ≈3 nm. The ultralarge size of 2D WO3 shows unique features from the traditional 2D material. Resistive switching device and photocatalysis are discussed as examples of application. There is a clear intermediate resistance state in the device with 2D structure. And the failure of resistive switching device is closely related with the 2D structure of WO3. In the application of photocatalysis, an improved two‐step exfoliation, achieving a stack of WO3 monolayers with a large internal volume, is utilized. The enhancements of photocatalysis are obtained with 2D WO3 after exfoliation.

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Synergistic Effects of Mechanical, Thermal, and Optical Properties of Polyimide Composite Films Reinforced with WO₃ Nanorods

Niu

Shi

Pei

et al. 2022

Macro Materials & Eng

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In this study, WO 3 nanorods are directly blended with polyamic acid (PAA) solutions to improve the electrochromic capacity of WO 3 /PAA composite films. Specifically, the hexagonal WO 3 nanorods are prepared as inorganic reinforcements using a hydrothermal method and modified by 𝜸-aminopropyl triethoxysilane. After curing at 300 °C, the WO 3 nanorods/polyimide (PI) composite films demonstrate excellent mechanical and thermal properties. The tensile strength of the 1 wt% WO 3 /PI composite film is ≈110.27 MPa. The thermal stability of the 5 wt% WO 3 /PI composite film is better than that of the others, and the T 5 (5% thermal weight loss temperature) value is ≈560.05 °C. Moreover, the WO 3 /PAA composite films demonstrate electrochromic behaviors. The electrochromic range of the 5 wt% WO 3 /PAA composite film exceeds to 68%. For the WO 3 /PAA samples, the oxidation peak of the WO 3 nanorods is evident in the cyclic voltammetry curves. The color contrast of WO 3 /PI nanocomposites can be enhanced owing to the significant synergistic effects of the electron donor-acceptor system.

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Synthesis and fabrication of 2D Tungsten trioxide nanosheets based platform for impedimetric sensing of cardiac biomarker

Cited by 3 publications

References 41 publications

Hybrid Impedimetric Biosensors for Express Protein Markers Detection

Hybrid Impedimetric Biosensors for Express Protein Markers Detection

The Structural Modulation of Amorphous 2D Tungsten Oxide Materials in Magnetron Sputtering

Synergistic Effects of Mechanical, Thermal, and Optical Properties of Polyimide Composite Films Reinforced with WO₃ Nanorods

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Synthesis and fabrication of 2D Tungsten trioxide nanosheets based platform for impedimetric sensing of cardiac biomarker

Cited by 3 publications

References 41 publications

Hybrid Impedimetric Biosensors for Express Protein Markers Detection

Hybrid Impedimetric Biosensors for Express Protein Markers Detection

The Structural Modulation of Amorphous 2D Tungsten Oxide Materials in Magnetron Sputtering

Synergistic Effects of Mechanical, Thermal, and Optical Properties of Polyimide Composite Films Reinforced with WO3 Nanorods

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Synergistic Effects of Mechanical, Thermal, and Optical Properties of Polyimide Composite Films Reinforced with WO₃ Nanorods