Locally resonant porous phononic crystal sensor for heavy metals detection: A new approach of highly sensitive liquid sensors

Alrowaili, Z.A.; Aouassa, Mansour; Mahmoud, M.H.; El‐Nasser, Karam S.; El-Sayed, Hesham; Taha, T.A.; Ahmed, Ashour M.; Hajjiah, Ali; Mehaney, Ahmed

doi:10.1016/j.molliq.2022.120964

Cited by 20 publications

(4 citation statements)

References 62 publications

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“…The damping, which defines how the acoustic waves in the designed PnCs decay after a disturbance across the structure, controls the sharpness of resonance-transmitted peaks. 5,87–89 …”

Section: Resultsmentioning

confidence: 99%

Periodic and quasi-periodic one-dimensional phononic crystal biosensor: a comprehensive study for optimum sensor design

et al. 2023

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“…The damping, which defines how the acoustic waves in the designed PnCs decay after a disturbance across the structure, controls the sharpness of resonance-transmitted peaks. 5,87–89 …”

Section: Resultsmentioning

confidence: 99%

Periodic and quasi-periodic one-dimensional phononic crystal biosensor: a comprehensive study for optimum sensor design

et al. 2023

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“…Finally, another performance parameter (i.e., the damping rate) was also considered. The damping, which defines how the acoustic waves in the designed PnCs decay following a disturbance across the structure, determines the sharpness of the resonance-transmitted peaks [ 42 , 43 , 44 , 45 ]:

…”

Section: Resultsmentioning

confidence: 99%

One-Dimensional Phononic Crystals: A Simplified Platform for Effective Detection of Heavy Metals in Water with High Sensitivity

et al. 2023

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Recently, the pollution of fresh water with heavy metals due to technological and industrial breakthroughs has reached record levels. Therefore, monitoring these metals in fresh water has become essentially urgent. Meanwhile, the conventional periodic one-dimensional phononic crystals can provide a novel platform for detecting the pollution of heavy metals in fresh water with high sensitivity. A simplified design of a defective, one-dimensional phononic crystals (1D-PnC) structure is introduced in this paper. The sensor is designed from a lead-epoxy multilayer with a central defect layer filled with an aqueous solution from cadmium bromide (CdBr2). The formation of a resonant peak through the transmittance spectrum is highly expected. This study primarily aims to monitor and detect the concentration of cadmium bromide in pure water based on shifting the position of this resonant peak. Notably, any change in cadmium bromide concentration can affect the acoustic properties of cadmium bromide directly. The transfer matrix method has been used to calculate the transmission spectra of the incident acoustic wave. The numerical findings are mainly based on the optimization of the cadmium bromide layer thickness, lead layer thickness, epoxy layer thickness, and the number of periods to investigate the most optimum sensor performance. The introduced sensor in this study has provided a remarkably high sensitivity (S = 1904.25 Hz) within a concentration range of (0–10,000 ppm). The proposed sensor provides a quality factor (QF), a resolution, and a figure of merit of 1398.51752, 48,875,750 Hz, and 4.12088 × 10−5 (/ppm), respectively. Accordingly, this sensor can be a potentially robust base for a promising platform to detect small concentrations of heavy metal ions in fresh water.

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“…The shift in the resonant wavelength or frequency confined in a fluid-filled layer or cavity is highly influenced by changes in the sound speed of the fluid. In this connection, PnCs have engaged severe attention in various sensing attempts 13 , 14 . Recently, numerous scientific research has been done on using defective one-dimensional PnCs (1D-PnCs) with periodic materials in sensing applications 15 – 17 .…”

Section: Introductionmentioning

confidence: 99%

Theoretical optimisation of a novel gas sensor using periodically closed resonators

Zaky,

Al-Dossari,

Sharma

et al. 2024

Sci Rep

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This study investigates using the phononic crystal with periodically closed resonators as a greenhouse gas sensor. The transfer matrix and green methods are used to investigate the dispersion relation theoretically and numerically. A linear acoustic design is proposed, and the waveguides are filled with gas samples. At the center of the structure, a defect resonator is used to excite an acoustic resonant peak inside the phononic bandgap. The localized acoustic peak is shifted to higher frequencies by increasing the acoustic speed and decreasing the density of gas samples. The sensitivity, transmittance of the resonant peak, bandwidth, and figure of merit are calculated at different geometrical conditions to select the optimum dimensions. The proposed closed resonator gas sensor records a sensitivity of 4.1 Hz m−1 s, a figure of merit of 332 m−1 s, a quality factor of 113,962, and a detection limit of 0.0003 m s−1. As a result of its high performance and simplicity, the proposed design can significantly contribute to gas sensors and bio-sensing applications.

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Locally resonant porous phononic crystal sensor for heavy metals detection: A new approach of highly sensitive liquid sensors

Cited by 20 publications

References 62 publications

Periodic and quasi-periodic one-dimensional phononic crystal biosensor: a comprehensive study for optimum sensor design

Periodic and quasi-periodic one-dimensional phononic crystal biosensor: a comprehensive study for optimum sensor design

One-Dimensional Phononic Crystals: A Simplified Platform for Effective Detection of Heavy Metals in Water with High Sensitivity

Theoretical optimisation of a novel gas sensor using periodically closed resonators

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