Elaboration of a chemical sensor based on polyaniline and sulfanilic acid diazonium salt for highly sensitive detection nitrite ions in acidified aqueous media

2018 ◽  
Vol 4 (7) ◽  
pp. 1024-1034 ◽  
Author(s):  
Abdoulaye Diarisso ◽  
Modou Fall ◽  
Noureddine Raouafi
Keyword(s):  
Aqueous Medium ◽  
Sulfonic Acid ◽  
Chemical Sensor ◽  
Diazonium Salt ◽  
Aqueous Media ◽  
Sulfanilic Acid ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

The work describes the use of sulfonic acid-functionalized GCE as a scaffold to build a highly sensitive PANI-based sensor for nitrite ions in aqueous medium.

Bifunctional NH2-MIL-88(Fe) metal–organic framework nanooctahedra for highly sensitive detection and efficient removal of arsenate in aqueous media

2017 ◽  
Vol 5 (45) ◽  
pp. 23794-23804 ◽  
Author(s):  
Donghua Xie ◽  
Yue Ma ◽  
Yue Gu ◽  
Hongjian Zhou ◽  
Haimin Zhang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
Aqueous Media ◽  
Sensitive Detection ◽  
Efficient Removal ◽  
Specific Recognition ◽  
Highly Sensitive ◽  
Metal Organic ◽  
Highly Sensitive Detection ◽  
Organic Framework

Bifunctional NH2-MIL-88(Fe) nanooctahedra have been successfully fabricated for highly sensitive and specific recognition as well as efficient removal of arsenate.

A Novel Chemical Sensor Based on Sb2 S3 Film for Highly Sensitive Detection of Hydrazine

2017 ◽  
Vol 29 (12) ◽  
pp. 2737-2743 ◽  
Author(s):  
Huiyun Guo ◽  
Wenlong Hou ◽  
Jingkai Yang ◽  
Lan Yu ◽  
Bo Liang ◽  
...  
Keyword(s):  
Chemical Sensor ◽  
Sensitive Detection ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

scholarly journals FRET Pumping of Rhodamine-Based Probe in Light-Harvesting Nanoparticles for Highly Sensitive Detection of Cu2+

2021 ◽  
Author(s):  
Aleksandr Mironenko ◽  
Mikhail Tutov ◽  
Aleksandr Chepak ◽  
Svetlana Bratskaya
Keyword(s):  
Light Harvesting ◽  
Aqueous Media ◽  
Optical Signal ◽  
Sensitive Detection ◽  
Excitation Light ◽  
Low Concentrations ◽  
Highly Sensitive ◽  
Novel Strategy ◽  
Highly Sensitive Detection ◽  
Solid Liquid

In this work we presented novel strategy for increasing the performance of popular fluorescent probes on the basis of rhodamine-lactam platform. This strategy is based on the incorporation of probe molecules into the light-harvesting nanoparticles to pump modulated optical signal by Förster resonant energy transfer. Using the commercially available Cu2+ probe as a reference chemical, we have developed an efficient approach to significantly improve its sensing performance. Within obtained nanoparticles coumarin-30 nanoantenna absorbs excitation light and pumps incorporated sensing molecules providing bright fluorescence to a small number of emitters, while changing the probe-analyte equilibrium from liquid-liquid to solid-liquid significantly increased the apparent association constant, which together provided a ~100-fold decrease in the detection limit. The developed nanoprobe allows highly sensitive detection of Cu2+ ions in aqueous media without organic co-solvents usually required for dissolution of the probe, and demonstrate compatibility with inexpensive fluorometers and the ability to detect low concentrations with the naked eye.

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