Electrospun Metal Oxide Nanofibers and Their Conductometric Gas Sensor Application. Part 2: Gas Sensors and Their Advantages and Limitations

Korotcenkov, Ghenadii

doi:10.3390/nano11061555

Cited by 28 publications

(16 citation statements)

References 372 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Experimental analysis, as well as theoretical measurement, verified that electrospinning nanofibers are extremely beneficial for trapping airborne contaminants [ 35 , 36 , 37 ]. Figure 3 a–f shows the cold field emission type scanning electron micrographs of the active molecular films of chrysin, baicalein, scutellarein, genistein, quercetin, and baicalin after sampling, respectively.…”

Section: Resultsmentioning

confidence: 99%

Preparation of Electrospun Active Molecules Membrane Application to Atmospheric Free Radicals

Yang

Wang

et al. 2022

Membranes

View full text Add to dashboard Cite

Atmospheric reactive oxygen species (ROS) play a key role in the process of air pollution and oxidative damage to organisms. The analysis of ROS was carried out by the capture-derivative method. Therefore, it is necessary to prepare an effective molecular membrane to trap and detect ROS. Electrospinning membranes were prepared by combining the electrospinning technique with chrysin, baicalein, scutellarin, genistein, quercetin, and baicalin. By comparing the structures of the membranes before and after the reaction, the fluorescence enhancement characteristics of the reactive molecular membranes and the atmospheric radicals were studied. The ability of the active molecular membranes to trap atmospheric radicals was also studied. It was found that the genistein active molecular membrane had good trapping ability in four environments. The fluorescence enhancement rates in ROS, OH radical and O3 simulated environments were 39.32%, 7.99% and 11.92%, respectively. The fluorescence enhancement rate in atmospheric environment was 16.16%. Indeed, the sites where the atmospheric radicals react with the active molecular membranes are discussed. It is found that it is mainly related to the 5,7 phenolic hydroxyl of ring A, catechol structure and the coexistence structure of 4′ phenolic hydroxyl of ring B and 7 phenolic hydroxyl of ring A. Therefore, the genistein molecular membrane has shown great potential in its trapping ability and it is also environmentally friendly.

show abstract

Section: Resultsmentioning

confidence: 99%

Preparation of Electrospun Active Molecules Membrane Application to Atmospheric Free Radicals

Yang

Wang

et al. 2022

Membranes

View full text Add to dashboard Cite

show abstract

“…Other limitations of electrospun nanofibers are their brittleness and inability to fully adhere to the substrate surface after coating with metal oxide. Nanofibers containing metal oxide can become fragile and break after calcination [99]. This fragility will especially limit the use of a flexible biosensor [100].…”

Section: Current Limitations and Future Applicationsmentioning

confidence: 99%

Nanofiber Based on Electrically Conductive Materials for Biosensor Applications

Kelly

Jayasuriya

et al. 2022

Biomedical Materials & Devices

View full text Add to dashboard Cite

Biosensors are analytical tools that enable the transmission of different signals produced from the target analyte to a transducer for the production of real-time clinical diagnostic devices by obtaining meaningful results. Recent research demonstrates that the production of structured nanofiber through various methods has come to light as a potential platform for enhancing the functionality of biosensing devices. The general trend is towards the use of nanofibers for electrochemical biosensors. However, optical and mechanical biosensors are being developed by functionalization of nanofibers. Such nanofibers exhibit a high surface area to volume ratio, surface porosity, electroconductivity and variable morphology. In addition, nanosized structures have shown to be effective as membranes for immobilizing bioanalytes, offering physiologically active molecules a favorable microenvironment that improves the efficiency of biosensing. Cost effective, wearable biosensors are crucial for point of care diagnostics. This review aims to examine the electrically conductive materials, potential forming methods, and wide-ranging applications of nanofiber-based biosensing platforms, with an emphasis on transducers incorporating mechanical, electrochemical and optical and bioreceptors involving cancer biomarker, urea, DNA, microorganisms, primarily in the last decade. The appealing properties of nanofibers mats and the attributes of the biorecognition components are also stated and explored. Finally, consideration is given to the difficulties now affecting the design of nanofiber-based biosensing platforms as well as their future potential.

show abstract

“…Studies have shown that the unique properties of such structures make it possible to optimize the main parameters of gas sensors, such as sensitivity and rate of response [ 1 , 2 , 3 , 4 , 5 ]. In [ 5 , 6 , 7 ], a detailed consideration of the manufacturing features of gas sensors based on 1D and 2D structures and nanofibers was carried out, and the advantages and disadvantages of using such structures in this area were shown. In this article, we will continue the analysis of nanomaterials suitable for the development of gas sensors and focus on the consideration of porous 2D structures.…”

Section: Introductionmentioning

confidence: 99%

Current Trends in Nanomaterials for Metal Oxide-Based Conductometric Gas Sensors: Advantages and Limitations—Part 2: Porous 2D Nanomaterials

Tolstoy

2023

Nanomaterials

Self Cite

View full text Add to dashboard Cite

This article discusses the features of the synthesis and application of porous two-dimensional nanomaterials in developing conductometric gas sensors based on metal oxides. It is concluded that using porous 2D nanomaterials and 3D structures based on them is a promising approach to improving the parameters of gas sensors, such as sensitivity and the rate of response. The limitations that may arise when using 2D structures in gas sensors intended for the sensor market are considered.

show abstract

Electrospun Metal Oxide Nanofibers and Their Conductometric Gas Sensor Application. Part 2: Gas Sensors and Their Advantages and Limitations

Cited by 28 publications

References 372 publications

Preparation of Electrospun Active Molecules Membrane Application to Atmospheric Free Radicals

Preparation of Electrospun Active Molecules Membrane Application to Atmospheric Free Radicals

Nanofiber Based on Electrically Conductive Materials for Biosensor Applications

Current Trends in Nanomaterials for Metal Oxide-Based Conductometric Gas Sensors: Advantages and Limitations—Part 2: Porous 2D Nanomaterials

Contact Info

Product

Resources

About