scholarly journals Photonic Biosensor for Label-Free Detection Based on Photonic Nanostructures on Si-Waveguide Ring Resonator

2021 ◽  
Vol 6 (1) ◽  
pp. 39
Author(s):  
Hoang Anh Truong ◽  
Yugang Shang ◽  
Shunsuke Abe ◽  
Nobuyuki Matsuda ◽  
Hirohito Yamada
Keyword(s):  
Quality Factor ◽  
Ring Resonator ◽  
Clinical Diagnostics ◽  
Label Free ◽  
Electromagnetic Simulations ◽  
Label Free Detection ◽  
Matter Interaction ◽  
Light Matter Interaction ◽  
Conventional Structure ◽  
Waveguide Ring

A new structure of a micro-ring resonator for label-free biosensing is proposed. The structure includes sidewall-grating Si waveguide and periodical side-blocks that can enhance the light–matter interaction. From the electromagnetic simulations, the proposed structure exhibits a four-fold improvement in terms of sensitivity compared with the conventional structure. Moreover, the quality factor of the proposed structure is not degraded from that of the conventional structure. The improved sensitivity is promising for the detection of nanoparticles that can be applied to the environmental field and clinical diagnostics.

scholarly journals Label-free detection of morpholino-DNA hybridization using a silicon photonics suspended slab micro-ring resonator

2021 ◽  
pp. 1-1
Author(s):  
Soha Yousuf ◽  
Jongmin Kim ◽  
Ajymurat Orozaliev ◽  
Marcus Dahlem ◽  
Yong-Ak Song ◽  
...  
Keyword(s):  
Silicon Photonics ◽  
Dna Hybridization ◽  
Ring Resonator ◽  
Label Free ◽  
Label Free Detection

scholarly journals Label Free Detection of CD4+ and CD8+ T Cells Using the Optofluidic Ring Resonator

Sensors ◽  
2010 ◽  
Vol 10 (6) ◽  
pp. 5798-5808 ◽  
Author(s):  
John T. Gohring ◽  
Xudong Fan
Keyword(s):  
T Cells ◽  
Cd8 T Cells ◽  
Ring Resonator ◽  
Label Free ◽  
Label Free Detection

scholarly journals Pedestal subwavelength grating metamaterial waveguide ring resonator for ultra-sensitive label-free biosensing

2019 ◽  
Vol 141 ◽  
pp. 111396 ◽  
Author(s):  
Ching-Wen Chang ◽  
Xiaochuan Xu ◽  
Swapnajit Chakravarty ◽  
Hui-Chun Huang ◽  
Li-Wei Tu ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Label Free ◽  
Subwavelength Grating ◽  
Metamaterial Waveguide ◽  
Waveguide Ring

A planar split-ring resonator-based microwave biosensor for label-free detection of biomolecules

2012 ◽  
Vol 169 ◽  
pp. 26-31 ◽  
Author(s):  
Hee-Jo Lee ◽  
Jung-Hyun Lee ◽  
Hui-Sung Moon ◽  
Ik-Soon Jang ◽  
Jong-Soon Choi ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Label Free ◽  
Split Ring ◽  
Label Free Detection ◽  
Detection Of Biomolecules

scholarly journals Real-time cancellation of temperature induced resonance shifts in SOI wire waveguide ring resonator label-free biosensor arrays

2010 ◽  
Vol 18 (22) ◽  
pp. 22867 ◽  
Author(s):  
D.-X. Xu ◽  
M. Vachon ◽  
A. Densmore ◽  
R. Ma ◽  
S. Janz ◽  
...  
Keyword(s):  
Real Time ◽  
Ring Resonator ◽  
Label Free ◽  
Biosensor Arrays ◽  
Waveguide Ring

scholarly journals A packaged optical slot-waveguide ring resonator sensor array for multiplex label-free assays in labs-on-chips

Lab on a Chip ◽  
2010 ◽  
Vol 10 (3) ◽  
pp. 281-290 ◽  
Author(s):  
C. F. Carlborg ◽  
K. B. Gylfason ◽  
A. Kaźmierczak ◽  
F. Dortu ◽  
M. J. Bañuls Polo ◽  
...  
Keyword(s):  
Sensor Array ◽  
Ring Resonator ◽  
Slot Waveguide ◽  
Label Free ◽  
Waveguide Ring

scholarly journals PLASMONIC-PHOTONIC HYBRID NANODEVICE

2012 ◽  
Vol 11 (04) ◽  
pp. 1240019 ◽  
Author(s):  
TAIPING ZHANG ◽  
ALI BELAROUCI ◽  
SÉGOLÈNE CALLARD ◽  
PEDRO ROJO ROMEO ◽  
XAVIER LETARTRE ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Photonic Crystal ◽  
Quality Factor ◽  
Field Enhancement ◽  
High Quality ◽  
Storage Mechanism ◽  
Matter Interaction ◽  
Cavity System ◽  
Light Matter Interaction ◽  
Hybrid Cavity

We propose and demonstrate a hybrid cavity system in which an optical nanoantenna (NA) is evanescently coupled to a dielectric photonic crystal (PC) cavity. While the plasmonic component leads to strongly localized fields, photon storage mechanism is provided by the surrounding photonic crystal structure. The combined effect of plasmonic field enhancement and high quality factor opens new routes for the control of light-matter interaction at the nanoscale.

scholarly journals DNA nanotechnology assisted nanopore-based analysis

2020 ◽  
Vol 48 (6) ◽  
pp. 2791-2806 ◽  
Author(s):  
Taoli Ding ◽  
Jing Yang ◽  
Victor Pan ◽  
Nan Zhao ◽  
Zuhong Lu ◽  
...  
Keyword(s):  
Single Molecule ◽  
Dna Nanotechnology ◽  
Clinical Diagnostics ◽  
Dna Assembly ◽  
Label Free ◽  
One Pot ◽  
Dna Strand Displacement ◽  
Label Free Detection ◽  
Target Molecules ◽  
Dna Strand

Abstract Nanopore technology is a promising label-free detection method. However, challenges exist for its further application in sequencing, clinical diagnostics and ultra-sensitive single molecule detection. The development of DNA nanotechnology nonetheless provides possible solutions to current obstacles hindering nanopore sensing technologies. In this review, we summarize recent relevant research contributing to efforts for developing nanopore methods associated with DNA nanotechnology. For example, DNA carriers can capture specific targets at pre-designed sites and escort them from nanopores at suitable speeds, thereby greatly enhancing capability and resolution for the detection of specific target molecules. In addition, DNA origami structures can be constructed to fulfill various design specifications and one-pot assembly reactions, thus serving as functional nanopores. Moreover, based on DNA strand displacement, nanopores can also be utilized to characterize the outputs of DNA computing and to develop programmable smart diagnostic nanodevices. In summary, DNA assembly-based nanopore research can pave the way for the realization of impactful biological detection and diagnostic platforms via single-biomolecule analysis.

Simulation on biomarker sensor miniaturization based on metamaterial

2019 ◽  
Vol 33 (11) ◽  
pp. 1950135
Author(s):  
Ruitao Liu ◽  
Tianhong Cui
Keyword(s):  
Computer Simulation ◽  
Resonance Frequency ◽  
Ring Resonator ◽  
Split Ring Resonator ◽  
Important Application ◽  
Q Factor ◽  
Label Free ◽  
Split Ring ◽  
Label Free Detection ◽  
Simulation Results

Cancer is always the greatest threat to human health. In this work, a split-ring resonator (SRR)-based sensor was simulated for label-free detection on biomarkers in microwave. The model of biosensor was simulated by Computer Simulation Technology 2017 (CST2017) and some influences of feature parameters on resonance frequency and Q-factor were also discussed. From the simulation results, the model of sensor in our work showed ultrahigh Q-factor and sensitivity under different permittivities and also exhibited a trend of better performance when it works in higher frequency. Therefore, the SRR-based biosensor will become an important application in cancer precaution and treatment in the future.

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