Electro-Optical Detection of Single Nanoparticles on a Nanopore-Optofluidic Chip

2014 ◽  
Vol 1720 ◽  
Author(s):  
Shuo Liu ◽  
Yue Zhao ◽  
Matthew Stott ◽  
Joshua W. Parks ◽  
Aaron R. Hawkins ◽  
...  
Keyword(s):  
Solid State ◽  
Flow Velocity ◽  
Optical Waveguide ◽  
Wavelength Range ◽  
Fluorescence Detection ◽  
Optical Detection ◽  
Liquid Core ◽  
Optical Signals ◽  
Different Types ◽  
Optofluidic Chip

ABSTRACTA solid-state nanopore was integrated into an optofluidic sensor chip, liquid-core anti-resonant reflecting optical waveguide (ARROW). The solid-state nanopore worked as a smart gate, which simultaneously provided characteristic electrical signals and controlled the entry of single nanoparticles into the liquid-core channel. The subsequent fluorescence detection further identified the nanoparticles by providing optical signals within a specific wavelength range. In this work, correlated electrical and optical detection of single nanoparticles, H1N1 viruses, and λ-DNA molecules was demonstrated. Different types of particles in a mixture were successfully discriminated. Moreover, the flow velocity in the liquid-core channel was extracted with the help of combined analysis of electrical and optical signals. Enhanced electrical sensitivity using a solid-state nanopore with a thin limiting aperture sculpted by SiO2 deposition was also shown.

Fabrication and effect study of microfluidic SERS chip with integrated surface liquid core optical waveguide modified with nano gold

2016 ◽  
Vol 23 (8) ◽  
pp. 3059-3068 ◽  
Author(s):  
Chunyan Wang ◽  
Yi Xu ◽  
Rong Wang ◽  
Huazhou Zhao ◽  
Songtao Xiang ◽  
...  
Keyword(s):  
Optical Waveguide ◽  
Liquid Core ◽  
Effect Study ◽  
Nano Gold ◽  
Surface Liquid

scholarly journals CO2 activation through silylimido and silylamido zirconium hydrides supported on N-donor chelating SBA15 surface ligands

2016 ◽  
Vol 52 (12) ◽  
pp. 2577-2580 ◽  
Author(s):  
Farhan Ahmad Pasha ◽  
Anissa Bendjeriou-Sedjerari ◽  
Edy Abou-Hamad ◽  
Kuo-Wei Huang ◽  
Jean-Marie Basset
Keyword(s):  
Density Functional Theory ◽  
Solid State ◽  
Solid State Nmr ◽  
Density Functional ◽  
Density Functional Theory Calculations ◽  
Co2 Activation ◽  
Functional Theory ◽  
Surface Ligands ◽  
Different Types ◽  
Zirconium Hydrides

Density functional theory calculations and 2D 1H–13C HETCOR solid state NMR spectroscopy prove that CO2 can be used to probe, by its own reactivity, different types of N-donor surface ligands on SBA15-supported ZrIV hydrides: [(Si–O–)(Si–N)[Zr]H] and [(Si–NH–)(Si–X–)[Zr]H2] (XO or NH).

Minute Torsional Reorganization Elicited Large Visible Range Fluorescence Gain in Terphenyl Derived Crystals

2022 ◽  
Author(s):  
Tapan Ghosh ◽  
Madalasa Mondal ◽  
Ratheesh Vijayaraghavan
Keyword(s):  
Solid State ◽  
Intermolecular Interactions ◽  
Organic Semiconductor ◽  
Structural Rearrangement ◽  
Semiconductor Materials ◽  
Visible Range ◽  
Optical Signals ◽  
Electro Optic ◽  
Organic Semiconductor Materials

Understanding the variations in the solid-state optical signals of organic semiconductor materials upon subtle structural rearrangement or intermolecular interactions would help to extract the best performance in their electro-optic devices....

scholarly journals A Liquid-core Liquid-cladding Optical Waveguide Based on Thermal Gradients across the Laminar Flow of Water in Capillary Tubing

2019 ◽  
Vol 35 (2) ◽  
pp. 215-218
Author(s):  
Manami NAKAMURA ◽  
Hiroyasu MURATA ◽  
Kiichi SATO ◽  
Kin-ichi TSUNODA
Keyword(s):  
Laminar Flow ◽  
Optical Waveguide ◽  
Liquid Core ◽  
Thermal Gradients ◽  
Capillary Tubing

Research of a New All-Optical Solid-State Scanner Based on GaAs

2013 ◽  
Vol 710 ◽  
pp. 269-272
Author(s):  
Guo Ya Xu ◽  
Jun Hua He ◽  
Fan Sen ◽  
Yuan Tao Zhu
Keyword(s):  
Solid State ◽  
Optical Waveguide ◽  
High Speed ◽  
Refractive Index Change ◽  
Core Layer ◽  
Beam Deflection ◽  
Optical Scanning ◽  
Signal Light ◽  
Change Effect ◽  
All Optical

Design an all-optical solid-state scanner chip, which can realize high speed light deflection in a very small space, instead of electron beam deflection scan image converter tube and opto-mechanical scanner, cancel the complicated mechanical components, use the all-optical scanning to realize the super fast phenomenon observation. The beam deflection system is based on semiconductor optical waveguide core layer carrier induced refractive index change effect to realize, its development work is mainly divided into semiconductor optical waveguide and saw prisms two parts. And through the experiment, we measured deflection angle of the scanner chip to 1053nm signal light.

A quick and selective rhodamine based “smart probe” for “signal-on” optical detection of Cu2+ and Al3+ in water, cell imaging, computational studies and solid state analysis

2018 ◽  
Vol 266 ◽  
pp. 95-105 ◽  
Author(s):  
Abhishek Rai ◽  
Alok Kumar Singh ◽  
Kamini Tripathi ◽  
Avinash Kumar Sonkar ◽  
Brijesh Singh Chauhan ◽  
...  
Keyword(s):  
Solid State ◽  
Cell Imaging ◽  
Optical Detection ◽  
Computational Studies ◽  
Water Cell ◽  
State Analysis

Numerical Simulation of Impacts of Different Types of Air Duct Outlets on Ventilation Efficiency

2013 ◽  
Vol 438-439 ◽  
pp. 1098-1103
Author(s):  
Chun Zi Nan ◽  
Ji Ming Ma ◽  
Luo Zhao
Keyword(s):  
Numerical Simulation ◽  
Flow Field ◽  
Velocity Distribution ◽  
Flow Velocity ◽  
Numerical Method ◽  
Concentration Effect ◽  
Mixing Zone ◽  
Mixing Effect ◽  
Ventilation Efficiency ◽  
Different Types

To enhance the exhaust efficiency during ventilation, three types of air duct outlets were imported. According to the characteristics of velocity distribution simulated by numerical method, the flow field is divided into the mixing zone and the exhaust zone. The gradual contracted air duct outlet can enhance the mixing effect between fresh air and smoke. In the exhaust zone, however, the flow velocity on the upper section of the tunnel is weakened, which is unfavorable for smoke exhaust. Gradual expanded air duct outlet, on the contrary, may weaken the concentration effect of the airflow. The flow velocity on the upper section of the tunnel is increased in the exhaust zone, thus the flow field is more homogenized, which is in favor of smoke exhaust.

scholarly journals Effects of Using Channelling Devices to Increase Efficiency of Hydrokinetic Devices

2015 ◽  
Vol 52 (2) ◽  
pp. 3-12
Author(s):  
A. Kalnacs ◽  
J. Kalnacs ◽  
A. Mutule ◽  
V. Entins
Keyword(s):  
Flow Control ◽  
Flow Velocity ◽  
Cross Section ◽  
Power Output ◽  
High Importance ◽  
Different Types ◽  
The Cross ◽  
Increase Efficiency ◽  
Flow Velocities

Abstract In the rivers of Latvia and of many other countries the flow velocity in the places that are most suitable for installation of hydrokinetic devices is 0.4 to 0.9 m/s. In a stream or a river the hydrokinetic devices can reach full efficiency starting from about twice higher flow velocities. It is advisable to at least double this velocity thus increasing the efficiency and power output of the hydrokinetic devices installed in such places. Since Latvia has abundance of slow rivers and almost none are fast, research in this field is of high importance. Diversified technical methods are known that allow increasing substantially the efficiency of hydrokinetic devices. These methods include the use of diffusers, concentrators, different types of other channelling devices and means of flow control. Desirable effects are achieved through changing the cross-section and/or direction of a flow, its pressure, minimizing the turbulence, etc. This work substantiates the use of such devices for increasing the efficiency of hydrokinetic devices. A method is proposed for evaluation of the effects on power output gained owing to the use of channelling devices. Results show that the efficiency of hydrokinetic devices can be increased by at least 110%.

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