Plasmonic Sensor Based on Silver Nanoparticles for the Detection of Glucose

Li, Lingqiao; Cui, Wei; He, Zhihui; Xue, Weiwei; He, Hui

doi:10.1007/s11468-022-01617-8

Cited by 5 publications

(3 citation statements)

References 24 publications

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“…Even though optical systems have benefits and drawbacks, technical advancements in glucose monitoring have continuously improved. Structural modification of fiber optic sensors has been done to achieve better sensitivity and enhanced performance [44]. Photonic crystal fiber for glucose sensing, S shaped for immunosensing application, U shaped, D shaped probe for glucose sensing have been reported as an improvement in the structure for advancement of the sensors [45][46][47][48].…”

Section: Glucose Sensormentioning

confidence: 99%

Synthesis, characterization, and applications of gold nanoparticles in development of plasmonic optical fiber-based sensors

2022

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Gold nanoparticles (Au-NPs) are readily used nanoparticles which finds applications in fields like biosensors, drug delivery, optical bioimaging and many state of art systems used for detection. In the recent years fiber optic sensors have seen utilization of Au-NPs along with other nanoparticles for implementation of sensors for sensing various biomolecules like cholesterol, glucose, and uric acid. The cancer cells, creatinine and bacteria can also be detected with the fiber optic sensors. Given the significance of gold nanoparticles in fibre optic sensors, the current work is a review of the synthesis, the common methods used for characterization, and the applications of Au-NPs. It is important to discuss and analyse the work reported in the literature to understand the trend and gaps in developing plasmonic optical fiber sensors.

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Section: Glucose Sensormentioning

confidence: 99%

Synthesis, characterization, and applications of gold nanoparticles in development of plasmonic optical fiber-based sensors

2022

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“…Much higher sensitivities can be achieved with silver as a material. [ 6 ] For silver particles, both the absorption and the scattering cross‐sections are at least one order of magnitude higher than with gold of the same geometry. [ 7,8 ] In addition to the material, the geometry of the nanoparticles plays an important role in sensing.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Bulk Refractive Index Sensitivity of Silver NanoPrisms

Szántó,

Pritzke,

Kluitmann

et al. 2024

Advanced Optical Materials

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The sensitivity and optical properties of silver nanoprisms (triangular plates with round‐truncated corners) are investigated in this paper. Results of boundary element method simulations are compared with experimental results and literature data. Based on electron microscopy images of the synthesized nanoprisms, a single‐particle model is set up for simulations with three running parameters: edge length, thickness, and roundness (defined as the radius of the circumscribed circle divided by the edge length). These geometric parameters can be optimized during chemical synthesis to create sensors with improved sensitivity. The effect of biomolecular layers is also investigated. As a novel approach to improve the agreement between the simulated and experimentally measured extinction spectra, the single‐particle model is extended to consider the variation of the prisms' parameters in the form of distributions. The resulting extinction cross‐section spectra correspond well with the experimental data. The calculated bulk refractive index sensitivity is 670 nm/RIU (RIU stands for refractive index unit) for the single particle model (length = 150 nm, thickness = 10 nm, and roundness = 0.1), while (690 ± 5) nm/RIU for the extended model. The presented model and obtained relations between sensitivity and geometry can be effectively used to design and optimize the fabrication technologies for silver nanoprism‐based sensing applications.

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“…In another concept investigated by Zhu et al [ 18 ], plasmonic sensor design on fiber optics tips based on PDMS was experimented and a maximum sensitivity level of −4.13 nm/°C was reported. Similarly, a sensor design comprising Ag nanoparticles [ 19 ] was also investigated and tested as the RI sensor with glucose samples showing a maximum sensitivity of 1144 nm/RIU. Nejat et al [ 20 ] claimed a highly sophisticated sensor design by using MIM Ag-air grating with a complex grooved structure and reported a sensitivity as high as 1460 nm/RIU for glucose syrup and other biological fluids.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Refractive Index and Temperature Sensor Based on Graphene and LiNbO3

Irfan

Khan

Rehman

et al. 2022

Sensors

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A high-efficiency dual-purpose plasmonic perfect absorber sensor based on LiNbO3 and graphene layers was investigated in this paper for the refractive index and thermal sensing. The sensor design was kept simple for easy fabrication, comprising a LiNbO3 substrate with a quartz layer, thin layer of graphene, four gold nanorods, and a nanocavity in each unit cell. The nanocavity is located in the middle of the cell to facilitate the penetration of EM energy to the subsurface layers. The proposed sensor design achieved an output response of 99.9% reflection, which was easy to detect without having any specialized conditions for operability. The performance of the device was numerically investigated for the biomedical refractive index range of 1.33 to 1.40, yielding a sensitivity value of 981 nm/RIU with a figure-of-merit of 61.31 RIU−1. By including an additional polydimethylsiloxane polymer functional layer on the top, the device was also tested as a thermal sensor, which yielded a sensitivity level of −0.23 nm/°C.

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Plasmonic Sensor Based on Silver Nanoparticles for the Detection of Glucose

Cited by 5 publications

References 24 publications

Synthesis, characterization, and applications of gold nanoparticles in development of plasmonic optical fiber-based sensors

Synthesis, characterization, and applications of gold nanoparticles in development of plasmonic optical fiber-based sensors

Optimization of the Bulk Refractive Index Sensitivity of Silver NanoPrisms

Plasmonic Refractive Index and Temperature Sensor Based on Graphene and LiNbO3

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