Results 91 to 100 of about 54,094 (197)

Monitoring Biogenic Amines: Comparative Assessment of Detection Methods for Key Market Marine and Freshwater Species

Journal of Food Science, Volume 91, Issue 5, May 2026.
ABSTRACT Biogenic amines, primarily histamine, cadaverine, and putrescine, are important indicators of microbial spoilage and potential health risks. This review summarizes established and novel analytical methods for quantitatively determining biogenic amines in fish and fish products, along with their limits of detection in these complex matrices ...
Lasse Petersen
wiley   +1 more source

A toroidal SAW gyroscope with focused IDTs for sensitivity enhancement

Microsystems & Nanoengineering
A surface acoustic wave (SAW) gyroscope measures the rate of rotational angular velocity by exploiting a phenomenon known as the SAW gyroscope effect.
Lu Tian, Haitao Zhao, Qiang Shen, Honglong Chang   +3 more
doaj   +1 more source

Surface acoustic wave spectroscopy in investigation of electrical properties of the near-surface region in GaAs crystals

Archives of Acoustics, 2014
The possibility of the appyling the surface acoustic wave of Rayleigh type to semiconductor investigations is described. The transverse acoustoelectric effect has been used to study the real surfaces of GaAs:Cd (111) and GaAs:Si (110) single crystals ...
T. PUSTELNY
doaj  

Room-Temperature NH₃ Gas Surface Acoustic Wave (SAW) Sensors Based on Graphene/PPy Composite Films Decorated by Au Nanoparticles with ppb Detection Ability. [PDF]

Polymers (Basel), 2023
Shen CY, Hung TT, Chuang YW, Lai SK, Tai CM.   +4 more
europepmc   +1 more source

Acoustic impedance-based surface acoustic wave chip for gas leak detection and respiratory monitoring

Communications Engineering
Acoustic impedance enables many interesting acoustic applications. However, acoustic impedance for gas sensing is rare and difficult. Here we introduce a micro-nano surface acoustic wave (SAW) chip based on the acoustic impedance effect to achieve ultra ...
Baile Cui, Wen Wang, Lina Cheng, Jing Jin, Anyu Hu, Zixuan Ren, Xufeng Xue, Yong Liang   +7 more
doaj   +1 more source

A Surface Acoustic Wave (SAW)-Based Lab-on-Chip for the Detection of Active α-Glycosidase. [PDF]

Biosensors (Basel), 2022
Gagliardi M, Agostini M, Lunardelli F, Miranda A, Luminare AG, Cervelli F, Gambineri F, Cecchini M.   +7 more
europepmc   +1 more source

Investigation into Mass Loading Sensitivity of Sezawa Wave Mode-Based Surface Acoustic Wave Sensors

Sensors, 2013
In this work mass loading sensitivity of a Sezawa wave mode based surface acoustic wave (SAW) device is investigated through finite element method (FEM) simulation and the prospects of these devices to function as highly sensitive SAW sensors is reported.
N. Ramakrishnan, R. Parthiban, Sawal Hamid Md Ali, Md Shabiul Islam, Ajay Achath Mohanan   +4 more
doaj   +1 more source

Finite-element analysis of scattering parameters of surface acoustic wave bandpass filter formed on barium titanate thin film

International Journal of Smart and Nano Materials, 2018
The frequency dependence of scattering parameters of interdigital surface acoustic wave transducers placed on ferroelectric barium titanate (BaTiO3) epitaxial film in c-phase coated over magnesium oxide has been studied using the finite-element method ...
Pavel E. Timoshenko, Valery V. Kalinchuk, Vladimir B. Shirokov   +2 more
doaj   +1 more source

A Finite Element Model of a MEMS-based Surface Acoustic Wave Hydrogen Sensor

Sensors, 2010
Hydrogen plays a significant role in various industrial applications, but careful handling and continuous monitoring are crucial since it is explosive when mixed with air. Surface Acoustic Wave (SAW) sensors provide desirable characteristics for hydrogen
Walied A. Moussa, Mohamed M. EL Gowini
doaj   +1 more source

Mode Characterization and Sensitivity Evaluation of a Surface Acoustic Wave (SAW) Resonator Biosensor: Application to the Glial-Fibrillary-Acidic-Protein (GFAP) Biomarker Detection. [PDF]

Micromachines (Basel), 2023
Passeri AM, Lunardelli F, Cavariani D, Cecchini M, Agostini M.   +4 more
europepmc   +1 more source