Nanostructured Films of Perylene Derivatives: High Performance Materials for Taste Sensor Applications

2004 ◽  
Vol 2 (2) ◽  
pp. 95-101 ◽  
Author(s):  
C.J.L. Constantino ◽  
P.A. Antunes ◽  
E.C. Venancio ◽  
N. Consolin ◽  
F.J. Fonseca ◽  
...  
Keyword(s):  
High Performance ◽  
Nanostructured Films ◽  
Sensor Applications ◽  
Perylene Derivatives ◽  
Taste Sensor

Star-Fruit-Shaped CuO Structures for High Performance Ethanol Gas Sensor Device

2021 ◽  
Vol 13 (4) ◽  
pp. 724-733
Author(s):  
Ahmad Umar ◽  
Ahmed A. Ibrahim ◽  
Rajesh Kumar ◽  
Hassan Algadi ◽  
Hasan Albargi ◽  
...  
Keyword(s):  
Gas Sensor ◽  
High Performance ◽  
Crystal Size ◽  
Gas Sensing ◽  
Sensor Applications ◽  
Sensor Device ◽  
Star Fruit ◽  
Micro Structures ◽  
Gas Response ◽  
Structural Crystal

In this paper, star-fruit-shaped CuO microstructures were hydrothermally synthesized and subsequently characterized through different techniques to understand morphological, compositional, structural, crystal, optical and vibrational properties. The formation of star-fruit-shaped structures along with some polygonal and spherical nanostructures was confirmed by FESEM analysis. XRD data and Raman spectrum confirmed the monoclinic tenorite crystalline phase of the CuO with crystal size 17.61 nm. Star-fruit-shaped CuO microstructures were examined for ethanol gas sensing behavior at various operating temperatures and concentrations. The gas response of 135% was observed at the optimal temperature of 225 °C. Due to excellent selectivity, stability and re-usability, the as-fabricated sensor based on star-fruit-shaped CuO micro-structures may be explored for future toxic gas sensor applications.

scholarly journals Advanced Strategies to Improve Performances of Molybdenum-Based Gas Sensors

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Angga Hermawan ◽  
Ni Luh Wulan Septiani ◽  
Ardiansyah Taufik ◽  
Brian Yuliarto ◽  
Suyatman ◽  
...  
Keyword(s):  
High Performance ◽  
Gas Sensing ◽  
Low Cost ◽  
Molybdenum Oxides ◽  
Exhaled Breath ◽  
Sensor Applications ◽  
Theoretical Investigations ◽  
Gas Sensing Properties ◽  
Future Challenges ◽  
Made In

AbstractMolybdenum-based materials have been intensively investigated for high-performance gas sensor applications. Particularly, molybdenum oxides and dichalcogenides nanostructures have been widely examined due to their tunable structural and physicochemical properties that meet sensor requirements. These materials have good durability, are naturally abundant, low cost, and have facile preparation, allowing scalable fabrication to fulfill the growing demand of susceptible sensor devices. Significant advances have been made in recent decades to design and fabricate various molybdenum oxides- and dichalcogenides-based sensing materials, though it is still challenging to achieve high performances. Therefore, many experimental and theoretical investigations have been devoted to exploring suitable approaches which can significantly enhance their gas sensing properties. This review comprehensively examines recent advanced strategies to improve the nanostructured molybdenum-based material performance for detecting harmful pollutants, dangerous gases, or even exhaled breath monitoring. The summary and future challenges to advance their gas sensing performances will also be presented.

scholarly journals Electrospinning Nanoparticles-Based Materials Interfaces for Sensor Applications

Sensors ◽  
2019 ◽  
Vol 19 (18) ◽  
pp. 3977 ◽  
Author(s):  
Zhang ◽  
Jia ◽  
Liu ◽  
Wei ◽  
Su
Keyword(s):  
High Performance ◽  
Environmental Science ◽  
Materials Science ◽  
Functional Materials ◽  
Label Free ◽  
Structure Property ◽  
Metallic Oxide ◽  
Electrospinning Technique ◽  
Sensor Applications ◽  
Surface Enhanced Raman

Electrospinning is a facile technique to fabricate nanofibrous materials with adjustable structure, property, and functions. Electrospun materials have exhibited wide applications in the fields of materials science, biomedicine, tissue engineering, energy storage, environmental science, sensing, and others. In this review, we present recent advance in the fabrication of nanoparticles (NPs)-based materials interfaces through electrospinning technique and their applications for high-performance sensors. To achieve this aim, first the strategies for fabricating various materials interfaces through electrospinning NPs, such as metallic, oxide, alloy/metal oxide, and carbon NPs, are demonstrated and discussed, and then the sensor applications of the fabricated NPs-based materials interfaces in electrochemical, electric, fluorescent, colorimetric, surface-enhanced Raman scattering, photoelectric, and chemoresistance-based sensing and detection are presented and discussed in detail. We believe that this study will be helpful for readers to understand the fabrication of functional materials interfaces by electrospinning, and at the same time will promote the design and fabrication of electrospun nano/micro-devices for wider applications in bioanalysis and label-free sensors.

High-performance, high-temperature piezoelectric BiB3O6 crystals

2015 ◽  
Vol 3 (2) ◽  
pp. 329-338 ◽  
Author(s):  
Fapeng Yu ◽  
Qingming Lu ◽  
Shujun Zhang ◽  
Hewei Wang ◽  
Xiufeng Cheng ◽  
...  
Keyword(s):  
High Temperature ◽  
High Performance ◽  
Piezoelectric Properties ◽  
Temperature Stability ◽  
Piezoelectric Sensor ◽  
High Temperature Stability ◽  
Sensor Applications

BiB3O6 crystals possess large piezoelectric coefficients and high-temperature stability of their piezoelectric properties, which is promising for piezoelectric sensor applications.

scholarly journals Phase-delay Induced Variation of Synchronization Bandwidth and Frequency Stability in a Micromechanical Oscillator

2021 ◽  
Author(s):  
Zhan Shi ◽  
Dong Pu ◽  
Xuefeng Wang ◽  
Ronghua Huan ◽  
Zhuangde Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Experimental Tests ◽  
Frequency Stability ◽  
Phase Delay ◽  
Variation Pattern ◽  
Beam Resonator ◽  
Electrostatically Actuated ◽  
Sensor Applications ◽  
Mems Oscillator ◽  
Induced Variation

Abstract Phase feedback is commonly utilized to set up a synchronized MEMS oscillator for high performance sensor applications. It's a consensus that the synchronization region varies with phase delay with a `Anti-U' mode within 0 to pi and phase delay is typically fixed on pi/2 to achieve maximum synchronization range and best frequency stability. In this paper, phase-delay induced variation of synchronization bandwidth and frequency stability in a micromechanical oscillator is investigated analytically and experimentally. A self-sustained oscillator is built by applying phase feedback to an electrostatically actuated micro-beam resonator and synchronization phenomenon is observed after coupling it to a weak external periodic excitation. The analytical expression for predicting the synchronization bandwidth with phase delay is derived based on the dynamic model, from which three different types (`U', `Anti-U' and `M') of variation pattern of synchronization bandwidth are observed as feedback tuning. The variation of frequency stability along phase delay is also studied. The synchronization bandwidth and the frequency stability have exactly opposite variation pattern with phase delay in linear oscillators while they are totally consistent in nonlinear oscillators. Experimental tests in vacuum environment are carried out to validate the analytical observations. Our work presented here provides a precise way for achieving best performance of a synchronized MEMS oscillator in the sensor application.

Hexagonal Co3O4 anchored reduced graphene oxide sheets for high-performance supercapacitors and non-enzymatic glucose sensing

2018 ◽  
Vol 6 (29) ◽  
pp. 14367-14379 ◽  
Author(s):  
A. T. Ezhil Vilian ◽  
Bose Dinesh ◽  
Muruganantham Rethinasabapathy ◽  
Seung-Kyu Hwang ◽  
Chang-Soo Jin ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Glucose Sensor ◽  
Metal Organic Framework ◽  
Glucose Sensing ◽  
Hydrothermal Route ◽  
Sensor Applications ◽  
Reduced Graphene ◽  
Metal Organic

Reduced graphene oxide (RGO) incorporated onto metal–organic framework (MOF)-derived Co3O4 hexagons is prepared via a hydrothermal route for supercapacitor and glucose sensor applications.

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