Opto‐electronic sensing method and device for an acoustic piano

1994 ◽  
Vol 95 (1) ◽  
pp. 593-593
Author(s):  
David T. Starkey ◽  
Anthony G. Williams
Keyword(s):  
Electronic Sensing

scholarly journals Real-Time Optical and Electronic Sensing with a β-Amino Enone Linked, Triazine-Containing 2D Covalent Organic Framework

2019 ◽  
Author(s):  
Ranjit Kulkarni ◽  
Yu Noda ◽  
Deepak K. Barange ◽  
Yaroslav S. Kochergin ◽  
Barbora Balcarova ◽  
...  
Keyword(s):  
Pore Structure ◽  
Real Time ◽  
Visible Spectrum ◽  
Optical Devices ◽  
Two Dimensional ◽  
Bulk Conductivity ◽  
Electronic Response ◽  
Genuine Use ◽  
Predictive Design ◽  
Electronic Sensing

Fully-aromatic, two-dimensional covalent organic frameworks (2D COFs) are hailed as candidates for electronic and optical devices, yet to-date few applications emerged that make genuine use of their rational, predictive design principles and permanent pore structure. Here, we present a 2D COF made up of chemoresistant β-amino enone bridges and Lewis-basic triazine moieties that exhibits a dramatic real-time response in the visible spectrum and an increase in bulk conductivity by two orders of magnitude to a chemical trigger - corrosive HCl vapours. The optical and electronic response is fully reversible using a chemical switch (NH<sub>3</sub> vapours) or physical triggers (temperature or vacuum). These findings demonstrate a useful application of fully-aromatic 2D COFs as real-time responsive chemosensors and switches.

scholarly journals Real-Time Optical and Electronic Sensing with a β-Amino Enone Linked, Triazine-Containing 2D Covalent Organic Framework

2019 ◽  
Author(s):  
Ranjit Kulkarni ◽  
Yu Noda ◽  
Deepak K. Barange ◽  
Yaroslav S. Kochergin ◽  
Barbora Balcarova ◽  
...  
Keyword(s):  
Pore Structure ◽  
Real Time ◽  
Visible Spectrum ◽  
Optical Devices ◽  
Two Dimensional ◽  
Bulk Conductivity ◽  
Electronic Response ◽  
Genuine Use ◽  
Predictive Design ◽  
Electronic Sensing

Fully-aromatic, two-dimensional covalent organic frameworks (2D COFs) are hailed as candidates for electronic and optical devices, yet to-date few applications emerged that make genuine use of their rational, predictive design principles and permanent pore structure. Here, we present a 2D COF made up of chemoresistant β-amino enone bridges and Lewis-basic triazine moieties that exhibits a dramatic real-time response in the visible spectrum and an increase in bulk conductivity by two orders of magnitude to a chemical trigger - corrosive HCl vapours. The optical and electronic response is fully reversible using a chemical switch (NH<sub>3</sub> vapours) or physical triggers (temperature or vacuum). These findings demonstrate a useful application of fully-aromatic 2D COFs as real-time responsive chemosensors and switches.

Low Temperature Fabrication and Surface Modification Methods for Fused Silica Micro- and Nanochannels

2014 ◽  
Vol 1659 ◽  
pp. 15-26
Author(s):  
Sumita Pennathur ◽  
Pete Crisalli
Keyword(s):  
Low Temperature ◽  
Surface Properties ◽  
Fused Silica ◽  
Microfluidic Channels ◽  
Metal Electrodes ◽  
Release Channel ◽  
Nanofluidic Channels ◽  
Novel Method ◽  
Electronic Sensing ◽  
Release Method

ABSTRACTElectrokinetic based micro- and nanofluidic technologies provide revolutionary opportunities to separate, identify and analyze biomolecular species. Key to fully harnessing the power of such systems is the development of a robust method for integrated electrodes as well as a thorough understanding of the influence of the electrokinetic surface properties with and without different surface modifications. In this work, we demonstrate a surface micromachined fabrication approach for integrated addressable metal electrodes within centimeter-long nanofluidic channels using a low-temperature, xenon diflouride dry-release method for novel biosensing applications, as well as recent results from a joint theoretical and experimental study of electrokinetic surface properties in nano- and microfluidic channels fabricated with fused silica. The main contribution of this fabrication process involves the addition of addressable electrodes to a novel dry-release channel fabrication method, produced at <300°C, to be used in nanofluidic electronic sensing of biomolecules. Finally, we also show a novel method with which to coat our channels with silane based chemistries. Certain modifications are observed to show improved resistance to non-specific adhesion of both small molecules and proteins, indicating their further use as compatible surfaces in micro- and nanofluidic applications.

A New Foundry-Based Open-Gate Junction Field-Effect Transistor (OG-JFET) as Electronic Sensing Platform (ESP) for Life Science Applications

2021 ◽  
Author(s):  
Abbas Panahi ◽  
Hamed Osouli Tabrizi ◽  
Priyadarshini Mangannavar ◽  
Oleg Chebotarev ◽  
Andrew Fung ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistor ◽  
Life Science ◽  
Sensing Platform ◽  
Effect Transistor ◽  
Electronic Sensing

Development of Synergistic Opto-Electronic Sensing Platform based on Zinc Oxide Semiconducting Nanostructures

2012 ◽  
Vol 2012 (1) ◽  
pp. 001191-001196
Author(s):  
Anurag Gupta ◽  
Bruce C. Kim ◽  
Mitchell Spryn ◽  
Eugene Edwards ◽  
Christina Brantley ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Cost Effective ◽  
Zinc Oxide Nanowires ◽  
Oxide Nanowires ◽  
Sensing Platform ◽  
Sensor Platform ◽  
Semiconducting Nanostructures ◽  
Ft Ir ◽  
Characterization Studies ◽  
Electronic Sensing

Potential of zinc oxide nanowires for developing a sensitive opto-electronic platform was demonstrated. Zinc oxide nanowires synthesized on insulating sapphire substrates were functionalized with an optically active receptor, 1-pyrenebutyric acid. Appropriate characterization studies including XPS and FT-IR ATR are reported. I-V curves of pristine and receptor-modified nanowires were utilized to highlight the potential of zinc oxide nano-heterostructures for developing a sensitive opto-electronic platform for p-nitrophenol sensing. Packaging issues for achieving an efficient and cost-effective sensor platform have also been outlined.

Liquid Crystal Biosensors

2013 ◽  
Vol 655-657 ◽  
pp. 834-837 ◽  
Author(s):  
Lan Ying Li ◽  
Wei Cheng Jiang ◽  
Yong He
Keyword(s):  
Liquid Crystal ◽  
Research Area ◽  
Exothermic Peak ◽  
Cooling Curve ◽  
Sensor Technology ◽  
Cholesteric Phase ◽  
Sensing Technology ◽  
Sensing Material ◽  
New Research ◽  
Electronic Sensing

The liquid crystal (LCD) biosensor is a new research area of sensor technology, which integrates the modern biotechnology and advanced electronic sensing technology. The feasibility and the principle of the LCD biosensor were mainly introduced in this paper. The chitosan films exhibited cholesteric phase LCD texture which can be seen by using the polarizing microscope (POM), and there is a main endothermic peak and exothermic peak of chitosan LCD solution in the DSC heating curve and cooling curve respectively. Chitosan maybe will be used as a sensing material by using its LCD characteristics. The development prospects are predicted.

Simulation of Electronic Sensing of Biomolecules in Translocation Through a Nanopore in a Semiconductor Membrane

Nanopores ◽  
2011 ◽  
pp. 151-175
Author(s):  
Maria E. Gracheva ◽  
Amandine Leroux ◽  
Jacques Destiné ◽  
Jean-Pierre Leburton
Keyword(s):  
Electronic Sensing ◽  
Semiconductor Membrane

scholarly journals Directly printed wearable electronic sensing textiles towards human–machine interfaces

2018 ◽  
Vol 6 (47) ◽  
pp. 12841-12848 ◽  
Author(s):  
Xinqin Liao ◽  
Weitao Song ◽  
Xiangyu Zhang ◽  
Hua Huang ◽  
Yongtian Wang ◽  
...  
Keyword(s):  
Strain Sensors ◽  
Human Machine Interfaces ◽  
Gesture Control ◽  
Wearable Electronic ◽  
Electronic Sensing

An intelligent glove assembled with stencil printed and ultrasensitive textile strain sensors was prepared for wireless gesture control.

Design of a Mobile Platform for Overhead Detectors for Vehicles on the Highway

2004 ◽  
Author(s):  
Jacob S. Duane ◽  
Joe A. Palen ◽  
Fidelis O. Eke ◽  
Harry H. Cheng
Keyword(s):  
United States ◽  
The United States ◽  
Department Of Transportation ◽  
Ground Vehicles ◽  
Highway Traffic ◽  
Road Vehicles ◽  
California Department ◽  
New Family ◽  
Technical Study ◽  
Electronic Sensing

The California Department of Transportation, like many such departments in the United States, is working on developing a new family of electronic sensing devices for the purpose of monitoring certain characteristics of road vehicles as they move along the highway. The devices currently under development are to be located overhead individual highway traffic lanes, from where they can have a clear “view” of ground vehicles. In order to deploy these devices, there is a need to develop the capability to safely and efficiently mount them above highway traffic lanes, using existing overhead bridges and sign structures as support structures. This paper presents a technical study of a universal support platform for these devices. The study discusses such issues as mobility, reliability, and resistance to environmental and other hazards. Results of tests conducted on a prototype are also presented.

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