Nanosensors Based on Localized Surface Plasmon Resonance

Yıldırım, Deniz Umut; Ghobadi, Amir; Özbay, Ekmel

doi:10.1002/9783527830343.ch2

Cited by 6 publications

(4 citation statements)

References 149 publications

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“…128 SPR eliminates the use of markers or probes for cortisol detection. 129 There are limitations of this technique, namely the high cost and complex process for sampling. This has led to the development of an aptamer-based SPR sensor.…”

Section: Surface Plasmon Resonance (Spr) Sensingmentioning

confidence: 99%

Sensing methods for stress biomarker detection in human saliva: a new frontier for wearable electronics and biosensing

Pandit,

Crewther,

Cook

et al. 2024

Mater. Adv.

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Section: Surface Plasmon Resonance (Spr) Sensingmentioning

confidence: 99%

Sensing methods for stress biomarker detection in human saliva: a new frontier for wearable electronics and biosensing

Pandit,

Crewther,

Cook

et al. 2024

Mater. Adv.

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“…One of the most intriguing and extensively researched devices is one made by utilizing surface nanopatterning technology. Nanopattern subwavelength characteristics promote actions such as guided mode resonance [ 56 ], SERS [ 56 ], or localized SPR [ 57 ]. Those structures make it possible to identify light interactions with certain biological analytes at the sensor surface effectively.…”

Section: Sars-cov-2 Biosensorsmentioning

confidence: 99%

A Framework for Biosensors Assisted by Multiphoton Effects and Machine Learning

et al. 2022

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The ability to interpret information through automatic sensors is one of the most important pillars of modern technology. In particular, the potential of biosensors has been used to evaluate biological information of living organisms, and to detect danger or predict urgent situations in a battlefield, as in the invasion of SARS-CoV-2 in this era. This work is devoted to describing a panoramic overview of optical biosensors that can be improved by the assistance of nonlinear optics and machine learning methods. Optical biosensors have demonstrated their effectiveness in detecting a diverse range of viruses. Specifically, the SARS-CoV-2 virus has generated disturbance all over the world, and biosensors have emerged as a key for providing an analysis based on physical and chemical phenomena. In this perspective, we highlight how multiphoton interactions can be responsible for an enhancement in sensibility exhibited by biosensors. The nonlinear optical effects open up a series of options to expand the applications of optical biosensors. Nonlinearities together with computer tools are suitable for the identification of complex low-dimensional agents. Machine learning methods can approximate functions to reveal patterns in the detection of dynamic objects in the human body and determine viruses, harmful entities, or strange kinetics in cells.

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“…Exclusively, plasmonic-organic hybrids have gathered a lot of attention due to their flexible and versatile interaction mechanisms which can be further fine-tuned to achieve the desired photonic characteristics. Plasmon coupled organic molecules have led to substantial progress in high-throughput DNA detection [19,20], bio-imaging [21], drug delivery [22], photovoltaic [23] and light-emitting diodes [24], surface-enhanced Raman spectroscopy [11], nanoscale lasers [25], ultrasensitive chemical and biological sensors [26].…”

Section: Introductionmentioning

confidence: 99%

Types of Nonlinear Interactions between Plasmonic-Excitonic Hybrids

Gambhir¹,

Vedeshwar²

2023

Plasmonic Nanostructures - Basic Concepts, Optimization and Applications

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The unique ability of plasmonic structures to concentrate and manipulate photonic signals in deep sub-wavelength domain provides new efficient pathways to generate, guide, modulate and detect light. Due to collective oscillations exhibited by the conducting electrons of metallic nanoparticles, their local fields can be greatly enhanced at the localized surface plasmon resonance (LSPR). Hence, they offer a versatile platform, where localized surface plasmons can be tuned over a broad range of wavelengths by controlling their shape, size and material properties. It has been realized that plasmonic excitations can strengthen nonlinear optical effects in three ways. First, the coupling between the incident beam of light and surface plasmons results in a strong local confinement of the electromagnetic fields, which in turn enhances the optical response. Second, the sensitivity of plasmonic excitations toward the dielectric properties of the metal and the surrounding medium forms the basis for label-free plasmonic sensors. Finally, the excitation and relaxation dynamics of plasmonic nanostructures responds to a timescale of femtoseconds regime, thus allowing ultrafast processing of the incident optical signals. This chapter aims to discuss all the aforementioned interactions of plasmons and their excitonic hybrids in detail and also represent a glimpse of their experimental realizations.

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Nanosensors Based on Localized Surface Plasmon Resonance

Cited by 6 publications

References 149 publications

Sensing methods for stress biomarker detection in human saliva: a new frontier for wearable electronics and biosensing

Sensing methods for stress biomarker detection in human saliva: a new frontier for wearable electronics and biosensing

A Framework for Biosensors Assisted by Multiphoton Effects and Machine Learning

Types of Nonlinear Interactions between Plasmonic-Excitonic Hybrids

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