A new multifunctional Schiff base as a fluorescence sensor for Al3+ and a colorimetric sensor for CN− in aqueous media: an application to bioimaging

2014 ◽  
Vol 43 (18) ◽  
pp. 6650-6659 ◽  
Author(s):  
Seul Ah Lee ◽  
Ga Rim You ◽  
Ye Won Choi ◽  
Hyun Yong Jo ◽  
Ah Ram Kim ◽  
...  
Keyword(s):  
Schiff Base ◽  
Color Change ◽  
Aqueous Media ◽  
Colorimetric Sensor ◽  
Fluorescence Sensor

A new multifunctional Schiff-base receptor 1 which exhibits an excellent cell-permeable fluorescence for Al3+ and a color change for CN− in aqueous media has been prepared.

A cap-type Schiff base acting as a fluorescence sensor for zinc(ii) and a colorimetric sensor for iron(ii), copper(ii), and zinc(ii) in aqueous media

2013 ◽  
Vol 42 (47) ◽  
pp. 16569 ◽  
Author(s):  
Kyung Beom Kim ◽  
Hyun Kim ◽  
Eun Joo Song ◽  
Sumi Kim ◽  
Insup Noh ◽  
...  
Keyword(s):  
Schiff Base ◽  
Aqueous Media ◽  
Colorimetric Sensor ◽  
Fluorescence Sensor

A Novel Colorimetric Sensor for Selective Sensing of Cu (II) in Aqueous Media

2012 ◽  
Vol 549 ◽  
pp. 615-619
Author(s):  
Wei Yu ◽  
Xin Zhou ◽  
Ying Ai Piao ◽  
Xue Wu
Keyword(s):  
Analytical Method ◽  
Copper Content ◽  
Color Change ◽  
Aqueous Media ◽  
Colorimetric Sensor ◽  
Dmso Solution ◽  
Aqueous Dmso ◽  
Actual Sample

A novel colorimetric sensor based on BMPA derivative was designed and synthesized. The sensor displayed high selective and sensitive recognition of Cu2+in aqueous DMSO solution via an obvious color change from yellow to pink. The color change can be attribute to form a complex with Cu2+with C=O and N-H bonds. Based on this principle, an analytical method was developed and successfully used in the determination of the copper content in actual sample.

The maiden report of a fluorescent-colorimetric sensor for expeditious detection of bifluoride ion in aqueous media

RSC Advances ◽  
2016 ◽  
Vol 6 (110) ◽  
pp. 108717-108725 ◽  
Author(s):  
Anupam Ghorai ◽  
Santosh S. Thakur ◽  
Goutam K. Patra
Keyword(s):  
Schiff Base ◽  
Rapid Detection ◽  
Aqueous Media ◽  
Colorimetric Sensor ◽  
Colorimetric Chemosensor

A fluorescent-colorimetric chemosensor L, for rapid detection of bifluoride ion has been developed based on a simple bis-Schiff base.

A new multifunctional Schiff base as a fluorescence sensor for Fe2+ and F− ions, and a colorimetric sensor for Fe3+

2016 ◽  
Vol 178 ◽  
pp. 115-120 ◽  
Author(s):  
Chin-Feng Wan ◽  
Ya-Ju Chang ◽  
Chih-Yu Chien ◽  
Yi-Wun Sie ◽  
Ching-Han Hu ◽  
...  
Keyword(s):  
Schiff Base ◽  
Colorimetric Sensor ◽  
Fluorescence Sensor

Green Synthesis and Spectroscopic Studies of Ag-rGO Nanocomposites for Highly Selective Mercury (II) Sensing

2018 ◽  
Vol 9 (1) ◽  
pp. 101-108 ◽  
Author(s):  
Shubhangi J. Mane-Gavade ◽  
Sandip R. Sabale ◽  
Xiao-Ying Yu ◽  
Gurunath H. Nikam ◽  
Bhaskar V. Tamhankar
Keyword(s):  
Green Synthesis ◽  
Color Change ◽  
Limit Of Detection ◽  
Aqueous Media ◽  
Suitable Condition ◽  
Cost Effective ◽  
Spectroscopic Studies ◽  
Calibration Plot ◽  
First Time

Introduction: Herein we report the green synthesis and characterization of silverreduced graphene oxide nanocomposites (Ag-rGO) using Acacia nilotica gum for the first time. Experimental: We demonstrate the Hg2+ ions sensing ability of the Ag-rGO nanocomposites form aqueous medium. The developed colorimetric sensor method is simple, fast and selective for the detection of Hg2+ ions in aqueous media in presence of other associated ions. A significant color change was noticed with naked eye upon Hg2+ addition. The color change was not observed for cations including Sr2+, Ni2+, Cd2+, Pb2+, Mg2+, Ca2+, Fe2+, Ba2+ and Mn2+indicating that only Hg2+ shows a strong interaction with Ag-rGO nanocomposites. Under the most suitable condition, the calibration plot (A0-A) against concentration of Hg2+ was linear in the range of 0.1-1.0 ppm with a correlation coefficient (R2) value 0.9998. Results & Conclusion The concentration of Hg2+ was quantitatively determined with the Limit of Detection (LOD) of 0.85 ppm. Also, this method shows excellent selectivity towards Hg2+ over nine other cations tested. Moreover, the method offers a new cost effective, rapid and simple approach for the detection of Hg2+ in water samples.

A colorimetric sensor for detecting thiourea based on inhibiting peroxidase-like activity of gold–platinum nanoparticles

2021 ◽  
Author(s):  
Yuqi Zhao ◽  
Qingjie Fu ◽  
Xiaoqian Cui ◽  
Hui Chi ◽  
Yongzhuang Lu ◽  
...  
Keyword(s):  
Platinum Nanoparticles ◽  
Color Change ◽  
Colorimetric Sensor ◽  
Gold Platinum

The sensor is based on the peroxidase-like activity of Au@PtNPs. Thiourea can quickly be detected by the color change of the solution. The method was applied to the determination of thiourea in practical samples.

Synthesis of new benzothiazole Schiff base as selective and sensitive colorimetric sensor for arsenic on-site detection at ppb level

2017 ◽  
Vol 9 (11) ◽  
pp. 1779-1785 ◽  
Author(s):  
Kalpana Chauhan ◽  
Prem Singh ◽  
Bhawana Kumari ◽  
Rakesh Kumar Singhal
Keyword(s):  
Schiff Base ◽  
Rapid Detection ◽  
Colorimetric Sensor

A new colorimetric sensor based on benzothiazole Schiff base has been proposed for the rapid detection of As3+/As5+.

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