Design nano cluster high Q-factor perfect plasmonic absorber for bacteria detection in the optical range

Nazary, Atefeh; Ebrahimi, Sepideh; Arezoomand, Afsane Saee

doi:10.1016/j.ijleo.2024.171652

Cited by 6 publications

(1 citation statement)

References 48 publications

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“…In terms of bacteria detection, a pentamer and split ring resonator (SRR) hybrid structure formed the basis for a suggested and simulated dual band plasmonic absorber. A sensitivity around 450 nm/RIU and a Figure of Merit of 227 RIU −1 was observed for the optimized structure [ 179 ]. Another cutting-edge multi-layer absorber based on the metal-DNA-metal structure demonstrated that a redshift may be obtained by switching the organic portion to "High Configuration" mode.…”

Section: Classification Of Metamaterials and Metasurfaces In Biosensi...mentioning

confidence: 99%

Recent advances in the metamaterial and metasurface-based biosensor in the gigahertz, terahertz, and optical frequency domains

Shamim,

Mohsin,

Rahman

et al. 2024

Heliyon

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Section: Classification Of Metamaterials and Metasurfaces In Biosensi...mentioning

confidence: 99%

Recent advances in the metamaterial and metasurface-based biosensor in the gigahertz, terahertz, and optical frequency domains

Shamim,

Mohsin,

Rahman

et al. 2024

Heliyon

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A polarization independent highly sensitive metasurface-based biosensor for lab-on-chip applications

Rahad,

Haque,

Mahadi

et al. 2024

Measurement

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Structure of plasmonic multi spectral Apta sensor and analyzing of bulk and surface sensitivity

Parviz,

Shokorlou,

Heidarzadeh

2024

Sci Rep

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In this work, a multispectral aptasensor structure, including a sub-layer and two side walls, was presented. The cells are positioned at the down and top of the structure, with the down cells oriented perpendicular to the walls and the top cells aligned parallel to the walls. The validity of the findings was verified by the utilization of a numerical simulation technique known as 3D Finite Difference Time Domain (FDTD). The biosensor under consideration exhibits sensitivities of 1093.7 nm/RIU, 754 nm/RIU, and 707.43 nm/RIU in mode III, mode II, and mode I, respectively. In the majority of instances, the quantity of analyte available is insufficient to coat the surface of the sensor thoroughly. Consequently, in this study, the evaluation of surface sensitivity was undertaken alongside bulk sensitivity. The surface sensitivity of the suggested structure for mode II in the sensor layer, with thicknesses of 10, 20, 30, and 70 nm, is measured to be 25, 78, 344, and 717.636 nm/RIU, respectively. Our design incorporates a unique arrangement of sub-layer and side walls, with cells positioned to maximize interaction with the target analyte. This innovative configuration, combined with Ag for its superior plasmonic properties, enables the detection of E. coli O157 with remarkable sensitivity.

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Design nano cluster high Q-factor perfect plasmonic absorber for bacteria detection in the optical range

Cited by 6 publications

References 48 publications

Recent advances in the metamaterial and metasurface-based biosensor in the gigahertz, terahertz, and optical frequency domains

Recent advances in the metamaterial and metasurface-based biosensor in the gigahertz, terahertz, and optical frequency domains

A polarization independent highly sensitive metasurface-based biosensor for lab-on-chip applications

Structure of plasmonic multi spectral Apta sensor and analyzing of bulk and surface sensitivity

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