A two-in-one dual channel chemosensor for Fe3+and Cu2+with nanomolar detection mimicking the IMPLICATION logic gate

2015 ◽  
Vol 3 (2) ◽  
pp. 453-460 ◽  
Author(s):  
Anil Kuwar ◽  
Rahul Patil ◽  
Amanpreet Singh ◽  
Suban K. Sahoo ◽  
Jaromir Marek ◽  
...  
Keyword(s):  
Aqueous Medium ◽  
Logic Gate ◽  
Fluorescence Sensor ◽  
Dual Channel ◽  
Nanomolar Detection

A highly selective colorimetric as well as fluorescence sensor for Fe(iii) and Cu(iii) in 99% aqueous medium.

scholarly journals Graphene oxide-derived carbonaceous sensor: turn-off fluorescence sensor for nanomolar detection of ruthenium ions in aqueous medium

2021 ◽  
Author(s):  
Jeyaraj Belinda Asha ◽  
Murugan Karthik ◽  
Palaniswamy Suresh
Keyword(s):  
Graphene Oxide ◽  
Aqueous Medium ◽  
Fluorescence Sensor ◽  
Water Medium ◽  
Selective Detection ◽  
Nanomolar Detection ◽  
Modified Graphene Oxide ◽  
Modified Graphene

A novel covalently modified graphene oxide has been synthesised and demonstrated as a carbonaceous chemosensor for the selective detection of Ru(iii) in complete water medium.

scholarly journals Selective Colorimetric Sensors for Cyanide and Acetate Ion in Partially Aqueous Medium

2018 ◽  
Author(s):  
Divya Singhal ◽  
Neha Gupta ◽  
Ashok Kumar Singh
Keyword(s):  
Detection Limit ◽  
Aqueous Medium ◽  
1H Nmr ◽  
Binding Constant ◽  
High Selectivity ◽  
Good Sensitivity ◽  
Dft Studies ◽  
Nmr Titration ◽  
1H Nmr Titration ◽  
Nanomolar Detection

4-(thiazol-2-yldiazenyl)phenol (L1) and 2-((4-hydroxyphenyl) diazenyl)-5-nitrophenol (L2) based on azo phenol were synthesised and used as selective colorimetric sensor for CN- and AcO− ion in DMSO/H2O-HEPES (v/v; 1:1, pH–7.3 ± 0.2) and showed good sensitivity with large red shifts and nanomolar detection limit for CN- and AcO- ion. The stoichiometry of L1 with CN−/AcO− ion was found to be 1:1 and L2 with CN−/AcO− ion was found to be 1:2. Binding constant for L1+ CN−, L1 + AcO−, L2 + CN− and L2 + AcO− were calculated by B-H plot as 1.6 × 103, 8.0 × 102, 8.4 × 103 and 1.7 × 102 respectively. L2 showed high selectivity towards CN− ion with low detection limit of 81 nM and large binding constant. In addition, 1H NMR titration and DFT studies also supported the deprotonation mechanism of receptors in the presence of selective anions.

scholarly journals Nanomolar Detection of H2S in an Aqueous Medium: Application in Endogenous and Exogenous Imaging of HeLa Cells and Zebrafish

ACS Omega ◽  
2020 ◽  
Vol 5 (31) ◽  
pp. 19896-19904
Author(s):  
Sanay Naha ◽  
Natesan Thirumalaivasan ◽  
Somenath Garai ◽  
Shu-Pao Wu ◽  
Sivan Velmathi
Keyword(s):  
Aqueous Medium ◽  
Hela Cells ◽  
Nanomolar Detection

Nanomolar-level selective dual channel sensing of Cu2+and CN−from an aqueous medium by an opto-electronic chemoreceptor

2018 ◽  
Vol 47 (4) ◽  
pp. 1082-1091 ◽  
Author(s):  
Suparna Paul ◽  
Pritam Ghosh ◽  
Samuzal Bhuyan ◽  
Subhra Kanti Mukhopadhyay ◽  
Priyabrata Banerjee
Keyword(s):  
Aqueous Medium ◽  
Molecular Electronics ◽  
Dual Channel ◽  
Channel Sensing

A novel chromogenic and fluorogenic chemoreceptor exhibiting a proclivity towards Cu2+and CN−, with applications in bioimaging and molecular electronics, was developed.

A Natural-Product-Inspired Photonic Logic Gate Based on Photoinduced Electron-Transfer-Generated Dual-Channel Fluorescence

2004 ◽  
Vol 6 (14) ◽  
pp. 2353-2355 ◽  
Author(s):  
Jose-Maria Montenegro ◽  
Ezequiel Perez-Inestrosa ◽  
Daniel Collado ◽  
Yolanda Vida ◽  
Rafael Suau
Keyword(s):  
Electron Transfer ◽  
Natural Product ◽  
Photoinduced Electron Transfer ◽  
Logic Gate ◽  
Dual Channel

scholarly journals Dual-Channel AND Logic Gate Based on Four-Wave Mixing in a Multimode Silicon Waveguide

2017 ◽  
Vol 9 (4) ◽  
pp. 1-6 ◽  
Author(s):  
Jiamin Wang ◽  
Ming Luo ◽  
Ying Qiu ◽  
Xiang Li ◽  
Jiaxin Gong ◽  
...  
Keyword(s):  
Logic Gate ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Silicon Waveguide ◽  
Dual Channel

scholarly journals Dual-Channel Probe of Carbon Dots Cooperating with Lanthanide Complex Employed for Simultaneously Distinguishing and Sequentially Detecting Tetracycline and Oxytetracycline

Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 128
Author(s):  
Lei Jia ◽  
Zhitao Xu ◽  
Rujie Chen ◽  
Xiangzhen Chen ◽  
Jun Xu
Keyword(s):  
Antimicrobial Agents ◽  
Fluorescence Probe ◽  
Color Change ◽  
Logic Gate ◽  
Lanthanide Complex ◽  
High Sensitivity ◽  
Inner Filter Effect ◽  
Antenna Effect ◽  
Buffer Solution ◽  
Dual Channel

Tetracycline (TC) and oxytetracycline (OTC) are the most widely used broad-spectrum antimicrobial agents in tetracycline drugs, and their structures and properties are very similar, so it is a great challenge to distinguish and detect these two antibiotics with a single probe at the same time. Herein, a dual-channel fluorescence probe (SiCDs@mMIPs-cit-Eu) was developed by integrating two independent reaction sites with SiCDs-doped mesoporous silica molecular imprinting group and europium complex group into a nanomaterial. The synergistic influence of inner filter effect and “antenna effect” can be guaranteed to solve the distinction between TC and OTC. Moreover, this novel strategy can also sequentially detect TC and OTC in buffer solution and real samples with high sensitivity and selectivity. This method revealed good responses to TC and OTC ranging from 0 to 5.5 μM with a detection limit of 5 and 16 nM, respectively. Combined with the smartphone color-scanning application, the portable and cheap paper-based sensor was designed to realize the multi-color visual on-site detection of TC and OTC. In addition, the logic gate device was constructed according to the fluorescence color change of the probe for TC and OTC, which provided the application possibility for the intelligent detection of the probe.

scholarly journals Highly selective and sensitive simultaneous nanomolar detection of Cs(i) and Al(iii) ions using tripodal organic nanoparticles in aqueous media: the effect of the urea backbone on chemosensing

RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22691-22700
Author(s):  
Jayanti Mishra ◽  
Manpreet Kaur ◽  
Navneet Kaur ◽  
Ashok K. Ganguli
Keyword(s):  
Aqueous Medium ◽  
Aqueous Media ◽  
Organic Nanoparticles ◽  
Nanomolar Detection

Two ligands 1 and 2 are synthesized and their organic nanoparticles (1-ONP and 2-ONP) are generated. 1-ONP has shown the chemosensing of Cs(i) (∼220 nm) and Al(iii) (∼377 nm) in aqueous medium while 2-ONP has not shown any chemosensing behaviour.

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