Highly sensitive, atmospheric pressure operatable sensor based on Au nanoclusters decorated TiO2@Au heterojunction nanorods for trace level NO2 gas detection

2017 ◽  
Vol 28 (13) ◽  
pp. 9738-9748 ◽  
Author(s):  
Dinesh Veeran Ponnuvelu ◽  
Biji Pullithadathil ◽  
Arun K. Prasad ◽  
Sandip Dhara ◽  
Kamruddin Mohamed ◽  
...  
Keyword(s):  
Atmospheric Pressure ◽  
Gas Detection ◽  
Trace Level ◽  
Au Nanoclusters ◽  
Highly Sensitive

Fluorescent-Dye-Doped Sol−Gel Sensor for Highly Sensitive Carbon Dioxide Gas Detection below Atmospheric Concentrations

2010 ◽  
Vol 82 (2) ◽  
pp. 593-600 ◽  
Author(s):  
Royce N. Dansby-Sparks ◽  
Jun Jin ◽  
Shelly J. Mechery ◽  
Uma Sampathkumaran ◽  
Thomas William Owen ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Sol Gel ◽  
Fluorescent Dye ◽  
Gas Detection ◽  
Carbon Dioxide Gas ◽  
Highly Sensitive ◽  
Atmospheric Concentrations

Highly Sensitive Ammonia Gas Detection with a Silica Toroid Microcavity Packaged in a Box

2017 ◽  
Author(s):  
Taku Okamura ◽  
Misako Kobayashi ◽  
Shun Fujii ◽  
Takasumi Tanabe
Keyword(s):  
Gas Detection ◽  
Ammonia Gas ◽  
Highly Sensitive

Wrinkled reduced graphene oxide nanosheets for highly sensitive and easy recoverable NH3 gas detector

RSC Advances ◽  
2014 ◽  
Vol 4 (87) ◽  
pp. 46930-46933 ◽  
Author(s):  
Su Zhang ◽  
Di Zhang ◽  
Vitaly I. Sysoev ◽  
Olga V. Sedelnikova ◽  
Igor P. Asanov ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Sensitivity ◽  
Graphite Powder ◽  
Gas Detection ◽  
Graphene Oxide Nanosheets ◽  
Chemical Exfoliation ◽  
Reduced Graphene ◽  
Highly Sensitive ◽  
Gas Detector

Highly wrinkled reduced graphene oxide nanosheets were prepared by chemical exfoliation of ball-milled graphite powder. This material showed high sensitivity and simple recovery ability for NH3 gas detection.

scholarly journals Ultrasensitive and Whole-Course Encapsulated Field Detection of 2019-nCoV Gene Applying Exponential Amplification from RNA Combined with Chemical Probes

2020 ◽  
Author(s):  
Simin Xia ◽  
Xi Chen
Keyword(s):  
Reverse Transcription ◽  
Rna Virus ◽  
Detection Methods ◽  
Chemical Probes ◽  
Trace Level ◽  
Field Detection ◽  
Global Epidemic ◽  
Affinity Probe ◽  
Highly Sensitive ◽  
Human Infections

The newly identified 2019-nCoV (SARS-CoV-2) RNA virus has caused over 80,000 laboratory-confirmed human infections in China (as of Mar. 1st, 2020), and is now becoming a global epidemic issue. As a result, highly sensitive, reliable and field-deployable methods to detect 2019-nCoV that can be developed in a shortest possible time are urgently needed. In this work, we introduce whole-course encapsulated and ultrasensitive field detection methods against 2019-nCoV gene. We applied isothermal exponential amplification methods via reverse transcription plus subsequent enzymatic recombinase amplification (ERA), a modified recombinase polymerase amplification (RPA), to amplify trace level of 2019-nCoV RNA. We designed both exo FRET probe and nfo affinity probe for easy detection of the amplified nucleic acids. These methods can be developed within a few days and as low as 0.32 aM (i.e. 0.32×10-18 M) of RNA can be reliably detected.<b></b><br>

Development of a tunable mid-IR difference frequency laser source for highly sensitive airborne trace gas detection

2002 ◽  
Vol 75 (2-3) ◽  
pp. 281-288 ◽  
Author(s):  
D. Richter ◽  
A. Fried ◽  
B.P. Wert ◽  
J.G. Walega ◽  
F.K. Tittel
Keyword(s):  
Difference Frequency ◽  
Gas Detection ◽  
Trace Gas ◽  
Laser Source ◽  
Trace Gas Detection ◽  
Highly Sensitive ◽  
Frequency Laser
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