A highly sensitive surface plasmon resonance biosensor using photonic crystal fiber filled with gold nanowire encircled by silicon lining

Selvendran, S.; Raja, Anita; Yogalakshmi, S.

doi:10.1016/j.ijleo.2017.10.157

Cited by 19 publications

(6 citation statements)

References 21 publications

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“…The silicon coating enhanced coupling by increasing the depth of penetration, thereby increasing sensitivity. Sensitivity also increases with increasing silicon thickness, but this behavior is limited by the expansion of the SPR spectrum [ 129 ]. This type of biosensor can be used as a potential candidate for organic analyte detection in the medical field.…”

Section: Application Of 1d Nanomaterials In the Field Of Optical Fibe...mentioning

confidence: 99%

Advances in Novel Nanomaterial-Based Optical Fiber Biosensors—A Review

Singh

Wang

et al. 2022

Biosensors

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This article presents a concise summary of current advancements in novel nanomaterial-based optical fiber biosensors. The beneficial optical and biological properties of nanomaterials, such as nanoparticle size-dependent signal amplification, plasmon resonance, and charge-transfer capabilities, are widely used in biosensing applications. Due to the biocompatibility and bioreceptor combination, the nanomaterials enhance the sensitivity, limit of detection, specificity, and response time of sensing probes, as well as the signal-to-noise ratio of fiber optic biosensing platforms. This has established a practical method for improving the performance of fiber optic biosensors. With the aforementioned outstanding nanomaterial properties, the development of fiber optic biosensors has been efficiently promoted. This paper reviews the application of numerous novel nanomaterials in the field of optical fiber biosensing and provides a brief explanation of the fiber sensing mechanism.

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Section: Application Of 1d Nanomaterials In the Field Of Optical Fibe...mentioning

confidence: 99%

Advances in Novel Nanomaterial-Based Optical Fiber Biosensors—A Review

Singh

Wang

et al. 2022

Biosensors

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“…This wavelength shift scheme provides higher sensitivity and accuracy. Depending on where the analyte is positioned within the sensor structure, sensing techniques are categorized as either internal sensing [20] or external sensing [21]. Yang et al created a PCF sensor utilizing SPR method with a gold-graphene configuration, where gold acted as the plasmonic substance and graphene was incorporated to enhance sensor efficiency.…”

Section: Introductionmentioning

confidence: 99%

A Novel Plasmonic Sensor Based on Dual-Channel D-Shaped Photonic Crystal Fiber for Enhanced Sensitivity in Simultaneous Detection of Different Analytes

Divya

Selvendran

Raja³

et al. 2024

IEEE Trans.on Nanobioscience

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A dual-channel D-shaped photonic crystal fiber (PCF) based plasmonic sensor is proposed in this paper for the simultaneous detection of two different analytes using the surface plasmon resonance (SPR) technique. The sensor employs a 50 nm-thick layer of chemically stable gold on both cleaved surfaces of the PCF to induce the SPR effect. This configuration offers superior sensitivity and rapid response, making it highly effective for sensing applications. Numerical investigations are conducted using the finite element method (FEM). After optimizing the structural parameters, the sensor exhibits a maximum wavelength sensitivity of 10000 nm/RIU and an amplitude sensitivity of -216 RIU -1 between the two channels. Additionally, each channel of the sensor exhibits its unique maximal wavelength and amplitude sensitivities for different refractive index (RI) ranges. Both channels demonstrate a maximal wavelength sensitivity of 6000 nm/RIU. In the RI range of 1.31-1.41, Channel 1 (Ch1) and Channel 2 (Ch2) achieved their maximum amplitude sensitivities of -85.39RIU -1 and -304.52 RIU -1 , respectively, with a resolution of 5x10 -5 . This sensor structure is noteworthy for its ability to measure both amplitude and wavelength sensitivity, providing enhanced performance characteristics suitable for various sensing purposes in chemical, biomedical, and industrial fields.

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“…The first one is internal sensing, the plasmonic metal and an analyte are selectively filling inside the fiber structure. Based on this internal sensing technique, Selvendran et al proposed a gold nanowire encircled by silicon lining PCFbased SPR biosensor and obtained the highest sensitivity of 4000 nm RIU −1 [22]. Rifat et al designed a selective filled PCF-based plasmonic SPR sensor with 11 000 nm RIU −1 enhanced sensitivity [23].…”

Section: Introductionmentioning

confidence: 99%

A novel plasmonic sensor using solid core D-shaped negative curvature optical fiber with AU–TiO₂ layer

Divya¹,

Selvendran²

2022

Laser Phys.

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Recently, unique structure fiber enacts a significant role in sensing applications. A novel D-shaped negative curvature fiber based surface plasmon resonance (SPR) sensor is proposed. The design consists of negative curvature solid core fiber surrounded by a cladding composed of double-layer adjoined airholes. An outside layer of the cladding contains semi-circular airholes, and the interior layer has small circular air holes to overwhelm the higher-order modes. The external sensing approach detects changes in the refractive index between 1.33 and 1.37. Employing gold as a plasmonic material, SPR is developed on top of the photonic crystal fiber (PCF). Between the gold layer and the PCF, a small layer of titanium dioxide is placed for binding the plasmonic material to the fiber. And it acts as an adhesive layer. The finite element method is used to perform numerical analyses. After improving the structural parameters, an enhanced sensitivity of 26 000 nm RIU−1 is achieved. Because of its enhanced sensitivity, this sensor is used in a bio-medical application to detect and prevent diseases in the early stage.

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A highly sensitive surface plasmon resonance biosensor using photonic crystal fiber filled with gold nanowire encircled by silicon lining

Cited by 19 publications

References 21 publications

Advances in Novel Nanomaterial-Based Optical Fiber Biosensors—A Review

Advances in Novel Nanomaterial-Based Optical Fiber Biosensors—A Review

A Novel Plasmonic Sensor Based on Dual-Channel D-Shaped Photonic Crystal Fiber for Enhanced Sensitivity in Simultaneous Detection of Different Analytes

A novel plasmonic sensor using solid core D-shaped negative curvature optical fiber with AU–TiO₂ layer

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A highly sensitive surface plasmon resonance biosensor using photonic crystal fiber filled with gold nanowire encircled by silicon lining

Cited by 19 publications

References 21 publications

Advances in Novel Nanomaterial-Based Optical Fiber Biosensors—A Review

Advances in Novel Nanomaterial-Based Optical Fiber Biosensors—A Review

A Novel Plasmonic Sensor Based on Dual-Channel D-Shaped Photonic Crystal Fiber for Enhanced Sensitivity in Simultaneous Detection of Different Analytes

A novel plasmonic sensor using solid core D-shaped negative curvature optical fiber with AU–TiO2 layer

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A novel plasmonic sensor using solid core D-shaped negative curvature optical fiber with AU–TiO₂ layer