Design of Plasmonic-Waveguiding Structures for Sensor Applications

Vlček, Jaroslav; Pištora, Jaromı́r; Lesňák, Michal

doi:10.3390/nano9091227

Cited by 15 publications

(11 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Owing to this simple and distinctive phenomenon, SPR-based biosensors have gained extensive attention to develop label-free and real-time biosensors with minimal sample preparation procedures [ 32 , 33 , 34 , 35 , 36 ]. Furthermore, as the dimension of EVs perfectly matches the sensing depth of SPR (200 nm), SPR-based biosensors are effective for quantifying EVs from complex biologic fluids [ 37 , 38 , 39 , 40 ]. In this section, recent studies related to SPR-based exosomal detection platforms are briefly introduced.…”

Section: Surface Plasmon Resonance-based Analysis Methods For Ev Dmentioning

confidence: 99%

Applications of Bionano Sensor for Extracellular Vesicles Analysis

2020

View full text Add to dashboard Cite

Recently, extracellular vesicles (EVs) and their contents have been revealed to play crucial roles in the intrinsic intercellular communications and have received extensive attention as next-generation biomarkers for diagnosis of diseases such as cancers. However, due to the structural nature of the EVs, the precise isolation and characterization are extremely challenging. To this end, tremendous efforts have been made to develop bionano sensors for the precise and sensitive characterization of EVs from a complex biologic fluid. In this review, we will provide a detailed discussion of recently developed bionano sensors in which EVs analysis applications were achieved, typically in optical and electrochemical methods. We believe that the topics discussed in this review will be useful to provide a concise guideline in the development of bionano sensors for EVs monitoring in the future. The development of a novel strategy to monitor various bio/chemical materials from EVs will provide promising information to understand cellular activities in a more precise manner and accelerates research on both cancer and cell-based therapy.

show abstract

Section: Surface Plasmon Resonance-based Analysis Methods For Ev Dmentioning

confidence: 99%

Applications of Bionano Sensor for Extracellular Vesicles Analysis

2020

View full text Add to dashboard Cite

show abstract

“…Therefore, the spectral SNR [ 24 ] curve is a key factor affecting sensor performance. Vlek et al changed the sensor layer structure and the metal layer structure to enhance the resolution of the SPR sensor [ 25 ]. Maharana et al changed the prism material and metal layer material to enhance the resolution of the SPR sensor [ 15 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Spectral Signal-to-Noise Ratio on Resolution Enhancement at Surface Plasmon Resonance

Xia

Shen

et al. 2021

Sensors

View full text Add to dashboard Cite

Refractive index resolution is an important indicator for a wavelength interrogation surface plasmon resonance sensor, which can be affected by signal-to-noise ratio. This paper investigates the impact of spectral signal-to-noise ratio on a surface plasmon resonance sensor. The effects of different spectral powers and noises are compared and verified through simulation and experiments. The results indicate that the optimal resonance wavelength is changed and the refractive index resolution can even be nearly twice as good when the spectral signal-to-noise ratio is increased. The optimal resonance wavelength can be found by changing the spectral power distribution or noise.

show abstract

“…[29,33] or PMMA ( [34]). Again at λ=632.8 nm the reflectance/incident angle graph displays a Fano resonance that is very sensitive to changes of the refractive index in a solution containing a chemical or a biological system to be analyzed [7,15,8,9].…”

Section: Introductionmentioning

confidence: 99%

Metal-insulator-metal thin film stack: flux enhancement due to coupling of surface plasmon polariton with wave guide modes

Raşeev¹,

Achlan²

2020

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

An theoretical study is presented of the dispersion of surface plasmon polariton (SPP) and wave guide (WG) modes of a metal-insulator-metal (MIM) thin film stack. We study the dispersion of the reflectance and of the transmitted flux, originating from a local excitation source, of an asymmetric MIM air-Au-SiO 2 -Au-Ti-glass material system in the infrared and visible spectral region for a wide range of SiO 2 and gold thicknesses, d SiO2 and d Au . In comparison to reference stacks of air-Au-glass or air-SiO 2 -glass, between 1.4 and 2.0 eV, the transmitted flux intensity is enhanced 12 or 25 times, in the emission direction of the in-plane wave vector k ρ {k 0 «1.05 and for a thickness of d SiO2 P[300-700] nm, respectively. This enhancement is attributed to the coupling, through the avoided crossings, between the SPP air and WG modes. As the fields of the SPP air and WG modes are located in different regions of space the enhancement is nearly independent of the number of nodes in the WG mode. In summary we have identified sets of parameters giving rise to the observables enhancement. Therefore the present MIM thin film stack is a simple and a versatile system for the use in applications.

show abstract

Design of Plasmonic-Waveguiding Structures for Sensor Applications

Cited by 15 publications

References 20 publications

Applications of Bionano Sensor for Extracellular Vesicles Analysis

Applications of Bionano Sensor for Extracellular Vesicles Analysis

Effect of Spectral Signal-to-Noise Ratio on Resolution Enhancement at Surface Plasmon Resonance

Metal-insulator-metal thin film stack: flux enhancement due to coupling of surface plasmon polariton with wave guide modes

Contact Info

Product

Resources

About