A cost-effective and open mobile sensor platform for networked surveillance

2011 ◽  
Author(s):  
Gang Li ◽  
Jianhao Du ◽  
Chun Zhu ◽  
Weihua Sheng
Keyword(s):  
Cost Effective ◽  
Mobile Sensor ◽  
Sensor Platform

A Mobile Sensor Platform for Measurement of Soil pH and Buffering

2004 ◽  
Author(s):  
Colin Christy ◽  
Kevin Collings ◽  
Paul Drummond ◽  
Eric Lund
Keyword(s):  
Soil Ph ◽  
Mobile Sensor ◽  
Sensor Platform

A noble gas sensor platform: linear dense assemblies of single-walled carbon nanotubes (LACNTs) in a multi-layered ceramic/metal electrode system (MLES)

2018 ◽  
Vol 6 (5) ◽  
pp. 972-979 ◽  
Author(s):  
Tae-Yeon Hwang ◽  
Yomin Choi ◽  
YoSeb Song ◽  
Nu Si A. Eom ◽  
Seil Kim ◽  
...  
Keyword(s):  
Noble Gas ◽  
Cost Effective ◽  
Hydrogen Sensor ◽  
Metal Electrode ◽  
Electrode System ◽  
Sensor Platform ◽  
Walled Carbon Nanotubes ◽  
Effective Hydrogen ◽  
Layered Ceramic ◽  
Pt Catalyzed

Monodispersed nano Pt catalyzed linear dense assembly of SWCNTs bundles on a noble multi-layered electrode system for cost-effective hydrogen sensor.

scholarly journals Synthetic aperture guided wave imaging using a mobile sensor platform

2012 ◽  
Author(s):  
Gordon Dobie ◽  
Walter Galbraith ◽  
Charles MacLeod ◽  
Rahul Summan ◽  
Gareth Pierce
Keyword(s):  
Guided Wave ◽  
Synthetic Aperture ◽  
Mobile Sensor ◽  
Sensor Platform ◽  
Wave Imaging

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.

The feasibility of synthetic aperture guided wave imaging to a mobile sensor platform

2013 ◽  
Vol 58 ◽  
pp. 10-17 ◽  
Author(s):  
Gordon Dobie ◽  
S. Gareth Pierce ◽  
Gordon Hayward
Keyword(s):  
Guided Wave ◽  
Synthetic Aperture ◽  
Mobile Sensor ◽  
Sensor Platform ◽  
Wave Imaging

scholarly journals Hand-held Colorimetry Sensor Platform for Determining Salivary α-Amylase Activity and Its Applications for Stress Assessment

Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1571 ◽  
Author(s):  
Hsien-Yi Hsiao ◽  
Richie Chen ◽  
Chih-Chi Chou ◽  
Tzong-Jih Cheng
Keyword(s):  
Assessment Tool ◽  
Amylase Activity ◽  
Cost Effective ◽  
Serum Cortisol ◽  
Soluble Starch ◽  
Stress Assessment ◽  
Sensor Platform ◽  
Colored Product ◽  
And Performance ◽  
Physiological Stressor

This study develops a hand-held stress assessment meter with a chemically colorimetric strip for determining salivary α-amylase activity, using a 3,5 dinitrosalicylic acid (DNS) assay to quantify the reducing sugar released from soluble starch via α-amylase hydrolysis. The colorimetric reaction is produced by heating the strip with a mini polyester heater plate at boiling temperature to form a brick red colored product, which measured at 525 nm wavelength. This investigation describes in detail the design, construction, and performance evaluation of a hand-held α-amylase activity colorimeter with a light emitted diode (LED) and photo-detector with built-in filters. The dimensions and mass of the proposed prototype are only 120 × 60 × 60 mm3 and 200 g, respectively. This prototype has an excellent correlation coefficient (>0.995), comparable with a commercial ultraviolet–visible spectroscope, and has a measurable α-amylase activity range of 0.1–1.0 U mL−1. The hand-held device can measure the salivary α-amylase activity with only 5 μL of saliva within 12 min of testing. This sensor platform effectively demonstrates that the level of salivary α-amylase activity increases more significantly than serum cortisol, the other physiological stressor biomarker, under physiologically stressful exercise conditions. Thus, this work demonstrates that the hand-held α-amylase activity meter is an easy to use and cost-effective stress assessment tool for psychoneuroendocrinology research.

PHOTOPLASTIC MICROCANTILEVER SENSOR PLATFORM FOR EXPLOSIVE DETECTION

2011 ◽  
Vol 10 (04n05) ◽  
pp. 739-743 ◽  
Author(s):  
V. SEENA ◽  
AVIL FERNANDES ◽  
SOUMYO MUKHERJI ◽  
V. RAMGOPAL RAO
Keyword(s):  
Mechanical Properties ◽  
Composite Materials ◽  
Polymer Composite ◽  
Cost Effective ◽  
Polymer Composite Materials ◽  
Explosive Detection ◽  
Electrical Detection ◽  
Vapor Detection ◽  
Sensor Platform ◽  
Electrical Responses

We present an ultrasensitive and cost effective polymeric microcantilever sensor platform for explosive vapor detection. These sensors were fabricated using SU-8 polymer composite materials with two transduction approaches namely (i) optical and (ii) electrical detection. The cantilevers have been characterized for their electrical and mechanical properties. The functionalization of these microcantilevers has been carried out using selective chemicals for most popular explosives such as TNT and RDX. Optical and electrical responses of respective microcantilevers to TNT and RDX vapors are also presented here.

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