scholarly journals Graphene chemiresistors modified with functionalized triphenylene for highly sensitive and selective detection of dimethyl methylphosphonate

RSC Advances ◽  
2019 ◽  
Vol 9 (58) ◽  
pp. 33976-33980 ◽  
Author(s):  
Yun-Tae Kim ◽  
Seongwoo Lee ◽  
Sanghwan Park ◽  
Chang Young Lee
Keyword(s):  
Gas Sensors ◽  
Nerve Agent ◽  
Selective Detection ◽  
Dimethyl Methylphosphonate ◽  
Highly Sensitive ◽  
Ppm Level

Graphene gas sensors functionalized with substituted triphenylene selectively detect DMMP, a simulant of nerve agent, at low ppm level.

scholarly journals Advancements in Microfabricated Gas Sensors and Microanalytical Tools for the Sensitive and Selective Detection of Odors

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5478
Author(s):  
Enric Perarnau Ollé ◽  
Josep Farré-Lladós ◽  
Jasmina Casals-Terré
Keyword(s):  
Gas Sensors ◽  
Low Cost ◽  
Good Alternative ◽  
General Purpose ◽  
Portable Devices ◽  
Selective Detection ◽  
Implementation Techniques ◽  
Highly Sensitive ◽  
Working Principle ◽  
Odor Monitoring

In recent years, advancements in micromachining techniques and nanomaterials have enabled the fabrication of highly sensitive devices for the detection of odorous species. Recent efforts done in the miniaturization of gas sensors have contributed to obtain increasingly compact and portable devices. Besides, the implementation of new nanomaterials in the active layer of these devices is helping to optimize their performance and increase their sensitivity close to humans’ olfactory system. Nonetheless, a common concern of general-purpose gas sensors is their lack of selectivity towards multiple analytes. In recent years, advancements in microfabrication techniques and microfluidics have contributed to create new microanalytical tools, which represent a very good alternative to conventional analytical devices and sensor-array systems for the selective detection of odors. Hence, this paper presents a general overview of the recent advancements in microfabricated gas sensors and microanalytical devices for the sensitive and selective detection of volatile organic compounds (VOCs). The working principle of these devices, design requirements, implementation techniques, and the key parameters to optimize their performance are evaluated in this paper. The authors of this work intend to show the potential of combining both solutions in the creation of highly compact, low-cost, and easy-to-deploy platforms for odor monitoring.

A naphthalimide-based fluorescent probe for the highly sensitive and selective detection of nerve agent mimic DCP in solution and vapor phase

2020 ◽  
Vol 44 (25) ◽  
pp. 10713-10718
Author(s):  
Hui Xu ◽  
Han Zhang ◽  
Lei Zhao ◽  
Cheng Peng ◽  
Guohua Liu ◽  
...  
Keyword(s):  
Detection Limit ◽  
Fluorescent Probe ◽  
Vapor Phase ◽  
Nerve Agent ◽  
Selective Detection ◽  
Low Detection Limit ◽  
Highly Sensitive ◽  
Excellent Selectivity

The fluorescent probe for DCP displays excellent selectivity and sensitivity with a low detection limit of 5.5 nM in DMF.

AIE-active Schiff base compounds as fluorescent probe for the highly sensitive and selective detection of Al3+ ions

2021 ◽  
Vol 233 ◽  
pp. 117911
Author(s):  
Minmin Wang ◽  
Linxia Lu ◽  
Wenwu Song ◽  
Xunyue Wang ◽  
Tongming Sun ◽  
...  
Keyword(s):  
Schiff Base ◽  
Fluorescent Probe ◽  
Selective Detection ◽  
Highly Sensitive
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