Wavelength-based localized surface plasmon resonance optical fiber biosensor

Cao, Jie; Tu, M.H.; Sun, Tao; Grattan, K. T. V.

doi:10.1016/j.snb.2013.02.052

Cited by 139 publications

(80 citation statements)

References 33 publications

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“…13.14 Absorbance spectra of a 60 nm Au nanospheres based LSPR sensor when the refractive index of the testing solutions increase. Reprinted from [130] with permission from Elsevier films or nanoparticles have been described, highlighting their advantages and the reasons that make them suitable for the fabrication of optical fiber sensors.…”

Section: Discussionmentioning

confidence: 99%

“…Reprinted from [124] with permission from Elsevier advances have allowed obtaining optical fiber sensors based on localized surface plasmon resonances (LSPR) from metallic-nanoparticles thin films [9,107]. This kind of sensors is acquiring particular relevance in the field of optical fiber sensing and biosensing [120,122,[125][126][127][128][129]. As an example, in Fig.…”

Section: Metallic Nano Thin Filmsmentioning

confidence: 99%

“…As an example, in Fig. 13.14 the response to external refractive index variations of a LSPR-based sensor made of Au nanospheres is shown [130].…”

Section: Metallic Nano Thin Filmsmentioning

confidence: 99%

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Fiber Optic Sensors Based on Nanostructured Materials

Elosúa

Hernáez

Matı́as

et al. 2014

Springer Series in Surface Sciences

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Fiber optic sensors have been developed taking advantage on the synergy between the properties of nanostructured materials and the ones that characterize an optical fiber. The mechanical properties of optical fiber introduce some restrictions to the techniques used for the deposition of materials. As an alternative to the classical deposition procedures, wet coating techniques have been successfully applied in these cases. The current chapter put emphasis on materials that can be incorporated using wet coating techniques. The first one presented is the multilayer based nanostructures: among the different alternatives, we have focused on materials prepared with the Layer-by-Layer technique. Another type of products used for the fabrication of optical fiber sensors is sol-gel matrices, which are made of silica, so that its optical properties are similar to the ones of an optical fiber. The other two described type of products have focused the attention of many researchers in the recent years. Firstly, materials with an enhanced selectivity are presented: the molecularly imprinted polymers (MIPs). Finally, sensors based on metallic nanolayers and particles are presented. All these materials and techniques have acquired a great importance in the field of optical fiber sensors due to their versatility and the good features that offer.

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Section: Discussionmentioning

confidence: 99%

Section: Metallic Nano Thin Filmsmentioning

confidence: 99%

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Fiber Optic Sensors Based on Nanostructured Materials

Elosúa

Hernáez

Matı́as

et al. 2014

Springer Series in Surface Sciences

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“…Meanwhile, SPR-based [9,10] and conventional LPFG-based [12] biosensors have too wide FWHM, which results in relatively low detection accuracy. Therefore, all the above advantages make Ex-TFGs a favorable platform for biochemical sensing.…”

Section: Fabrication Of Ex-tfgs and Apparatusmentioning

confidence: 99%

“…Besides, owning to high sensitivity and specificity, compact structure, and capacity of rapid detection, label-free optical immunosensors attract increasing attention from researchers in recent years. Indeed, many types have been proposed, including optical biosensors based on interferometric strategy [7,8], surface Plasmon resonance (SPR) based biosensors [9,10], a planar waveguide ring resonator designed for detecting multiple lung cancer biomarkers [11], and long period fiber grating (LPFG) for differentiated thyroid cancer biomarker detection [12].…”

Section: Introductionmentioning

confidence: 99%

Human heart failure biomarker immunosensor based on excessively tilted fiber gratings

Luo¹,

Wu²,

Zhang³

et al. 2016

Biomed. Opt. Express

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Abstract:A label-free immunosensor platform based on excessively tilted fiber gratings (ExTFGs) was developed for highly specific and fast detection of human N-terminal pro-B-type natriuretic peptide (NT-proBNP), which is considered a powerful biomarker for prognosis and risk stratification of heart failure (HF). High-purity anti-NT-proBNP monoclonal antibodies (MAbs) prepared in our laboratory were immobilized on fiber surface through the staphylococcal protein A (SPA) method for subsequent specific binding of the targeted NTproBNP. Utilizing fiber optic grating demodulation system (FOGDS), immunoassays were carried out in vitro by monitoring the resonance wavelength shift of Ex-TFG biosensor with immobilized anti-NT-proBNP MAbs. Lowest detectable concentration of ~0.5ng/mL for NTproBNP was obtained, and average sensitivity for NT-proBNP at a concentration range of 0~1.0 ng/mL was approximately 45.967 pm/(ng/mL). Several human serum samples were assessed by the proposed Ex-TFG biomarker sensor, with high specificity for NT-proBNP, indicating potential application in early diagnosing patients with acute HF symptoms. , 3023-3027 (2015).

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Spoof Localized Surface Plasmons for Sensing Applications

Zhang

Cui

et al. 2021

Adv Materials Technologies

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Localized surface plasmons (LSPs) are localized oscillations of free electrons in metal nanoparticles at optical frequencies. Confined mode profiles and near‐field enhancements make LSPs ultrasensitive to the dielectric environment, making them good candidates as sensors. The concept and applications have been generalized to spoof LSPs in microwave and terahertz frequencies, via plasmonic metamaterials composed of subwavelength corrugations. Herein, the basic physics, sensing prototypes, detection schemes, and state‐of‐the‐art progress are broadly reviewed from optical LSP sensing to microwave spoof LSP sensing. While optical LSPs exhibit localized sensitivity enhancement with high attenuation, spoof LSPs in microwave and terahertz frequencies combine the characteristics of deep‐subwavelength confinement and sensitivity enhancement of optical LSPs with low loss, high quality factor, multipole modes, and on‐chip detection of optical microcavities. Meanwhile, advances in printed circuits, integrated circuits, wireless communications, wearable devices, and Internet of things have endowed microwave sensing with a solid technical foundation and promising prospects. Applications in liquid sensing, gas sensing, and wearable sensing are demonstrated. Discussions are extended to electromagnetic sensing throughout the wave spectra, with concerns about key supporting technologies. The prospect of microwave sensing is emphatically investigated, specifically on leveraging the advantages of plasmonic enhancement.

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Wavelength-based localized surface plasmon resonance optical fiber biosensor

Cited by 139 publications

References 33 publications

Fiber Optic Sensors Based on Nanostructured Materials

Fiber Optic Sensors Based on Nanostructured Materials

Human heart failure biomarker immunosensor based on excessively tilted fiber gratings

Spoof Localized Surface Plasmons for Sensing Applications

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