Heavy metals biosensor based on defective one-dimensional phononic crystals

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

“…This can be attributed to the large number of layers that enhance wave losses or attenuation. 56 Consequently, there is very little contact between these waves and the 1D-PnC, and no resonant peaks are formed. To stimulate the resonant peaks, a low value for the number of layers is, therefore, necessary.…”

“…This reaction was necessary because the thick NaI solution layer increased wave damage or distortion. 56 As a result, there is very little interaction between these waves and the 1D-PnCs, and no resonant peaks are formed. Therefore, the minimal NaI solution layer thickness of 0.3 μm is required to activate the resonant peaks.…”

“…Periodic and quasiperiodic PnCs structures have recently attracted considerable attention due to their efficient performance in sensing applications. 47,55,56 Acoustic sound waves are passed through the multilayer PnCs structures. Some acoustic sound waves are reected, while others are transmitted to the output of PnCs.…”

“…56,90 Additionally, this sensor has a very low damping factor (7.19 × 10 −5 ) and a high gure of merit (323.529) compared with other sensors. 56,90 Other performance characteristics of the designed sensor are also very promising and distinctive, as shown in the Fig. 9 The effect of different concentrations on the figure of merit and detection limit of the NaI solution sensor.…”

“…These results are favorably acceptable as they distinguish the designed sensor in this study apart from previous liquid sensors of different types. 40,56,90…”