Optical Chemosensors and Chemodosimeters for Anion Detection Based on Merrifield Resin Functionalized with Brooker’s Merocyanine Derivatives

2019 ◽  
Vol 1 (7) ◽  
pp. 1757-1768 ◽  
Author(s):  
Rafaela I. Stock ◽  
Juliana P. Dreyer ◽  
Gisele E. Nunes ◽  
Ivan H. Bechtold ◽  
Vanderlei G. Machado
Keyword(s):  
Anion Detection ◽  
Optical Chemosensors ◽  
Merrifield Resin ◽  
Brooker’S Merocyanine

scholarly journals Phthalocyanine-Functionalized Magnetic Silica Nanoparticles as Anion Chemosensors

Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1632
Author(s):  
João M. M. Rodrigues ◽  
Andreia S. F. Farinha ◽  
Zhi Lin ◽  
José A. S. Cavaleiro ◽  
Augusto C. Tome ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Dimethyl Sulfoxide ◽  
Silica Nanoparticles ◽  
Hybrid Material ◽  
Limit Of Detection ◽  
Active Material ◽  
Anion Detection ◽  
Anionic Species ◽  
Magnetic Silica ◽  
Magnetic Silica Nanoparticles

Anionic species are one of the most common pollutants in residual and freshwaters. The presence of anthropogenic anions in water drastically increases the toxicity to living beings. Here, we report the preparation of a new optical active material based on tri(tosylamino)phthalocyanines grafted to ferromagnetic silica nanoparticles for anion detection and removal. The new unsymmetrical phthalocyanines (Pcs) proved to be excellent chemosensors for several anions (AcO−, Br−, Cl−, CN−, F−, H2PO4−, HSO4−, NO2−, NO3−, and OH−) in dimethyl sulfoxide (DMSO). Furthermore, the Pcs were grafted onto magnetic nanoparticles. The resulting novel hybrid material showed selectivity and sensitivity towards CN−, F−, and OH− anions in DMSO with limit of detection (LoD) of ≈4.0 µM. In water, the new hybrid chemosensor demonstrated selectivity and sensitivity for CN− and OH− anions with LoD of ≈0.2 µM. The new hybrids are easily recovered using a magnet, allowing recyclability and reusability, after acidic treatment, without losing the sensing proprieties.

Neutral Reducing Agents Supported on Merrifield Resin Obtained by Solid Phase Organic Synthesis

Tetrahedron ◽  
2021 ◽  
pp. 132195
Author(s):  
Milagros Aguilar-Martínez ◽  
Judas Tadeo Vargas-Durazo ◽  
Adrián Ochoa-Terán ◽  
Hisila Santacruz-Ortega ◽  
Karen Ochoa Lara ◽  
...  
Keyword(s):  
Organic Synthesis ◽  
Solid Phase ◽  
Reducing Agents ◽  
Solid Phase Organic Synthesis ◽  
Merrifield Resin

scholarly journals Perylene Imide-Based Optical Chemosensors for Vapor Detection

Chemosensors ◽  
2020 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
Miao Zhang ◽  
Jiangfan Shi ◽  
Chenglong Liao ◽  
Qingyun Tian ◽  
Chuanyi Wang ◽  
...  
Keyword(s):  
Molecular Design ◽  
Phase Detection ◽  
Time Reversibility ◽  
Strong Electron ◽  
Vapor Detection ◽  
Multiple Sensors ◽  
Optical Chemosensors ◽  
Potential Applications ◽  
High Fluorescence ◽  
Organic Amines

Perylene imide (PI) molecules and materials have been extensively studied for optical chemical sensors, particularly those based on fluorescence and colorimetric mode, taking advantage of the unique features of PIs such as structure tunability, good thermal, optical and chemical stability, strong electron affinity, strong visible light absorption and high fluorescence quantum yield. PI-based optical chemosensors have now found broad applications in gas phase detection of chemicals, including explosives, biomarkers of some food and diseases (such as organic amines (alkylamines and aromatic amines)), benzene homologs, organic peroxides, phenols and nitroaromatics, etc. In this review, the recent research on PI-based fluorometric and colorimetric sensors, as well as array technology incorporating multiple sensors, is reviewed along with the discussion of potential applications in environment, health and public safety areas. Specifically, we discuss the molecular design and aggregate architecture of PIs in correlation with the corresponding sensor performances (including sensitivity, selectivity, response time, recovery time, reversibility, etc.). We also provide a perspective summary highlighting the great potential for future development of PIs optical chemosensors, especially in the sensor array format that will largely enhance the detection specificity in complexed environments.

Anion detection by aggregation-induced enhanced emission (AIEE) of urea-functionalized tetraphenylethylenes

2014 ◽  
Vol 55 (34) ◽  
pp. 4810-4813 ◽  
Author(s):  
Christopher J. Kassl ◽  
F. Christopher Pigge
Keyword(s):  
Anion Detection

Improved Procedure for Routine13C NMR Analysis of Merrifield Resin Bound Molecules

1999 ◽  
Vol 1 (1) ◽  
pp. 25-27 ◽  
Author(s):  
F. Lorgé, ◽  
A. Wagner ◽  
C. Mioskowski
Keyword(s):  
Nmr Analysis ◽  
Merrifield Resin

Ferrocene-substituted calix[4]pyrrole modified carbon paste electrodes for anion detection in water

2006 ◽  
Vol 591 (2) ◽  
pp. 223-228 ◽  
Author(s):  
Iwona Szymańska ◽  
Hanna Radecka ◽  
Jerzy Radecki ◽  
Philip A. Gale ◽  
Colin N. Warriner
Keyword(s):  
Carbon Paste ◽  
Anion Detection ◽  
Carbon Paste Electrodes ◽  
Modified Carbon Paste Electrodes

Spectroscopic Studies on Brooker's Merocyanine

1998 ◽  
Vol 120 (44) ◽  
pp. 11479-11488 ◽  
Author(s):  
John O. Morley ◽  
Richard M. Morley ◽  
Ann L. Fitton
Keyword(s):  
Spectroscopic Studies ◽  
Brooker’S Merocyanine

Supramolecular Interactions in Aromatic Structures for Non-Optical and Optical Chemosensors of Explosive Chemicals

2021 ◽  
Vol 317 ◽  
pp. 202-207
Author(s):  
Juan Matmin ◽  
Nur Fatiha Ghazalli ◽  
Fazira Ilyana Abdul Razak ◽  
Hendrik O. Lintang ◽  
Mohamad Azani Jalani
Keyword(s):  
Hydrogen Bonding ◽  
High Performance ◽  
Molecular Design ◽  
Optical Sensing ◽  
Green Emission ◽  
Supramolecular Interactions ◽  
Side Chain ◽  
Optical Chemosensors ◽  
Random Aggregate ◽  
Metal Metal

The scientific investigation based on the molecular design of aromatic compounds for high-performance chemosensor is challenging. This is because their multiplex interactions at the molecular level should be precisely determined before the desired compounds can be successfully used as sensing materials. Herein, we report on the molecular design of chemosensors based on aromatic structures of benzene as the organic motif of benzene-1,3,5-tricarboxamides (BTA), as well as the benzene pyrazole complexes (BPz) side chain, respectively. In the case of BTA, the aromatic benzene acts as the centre to allow the formation of π–π stacking for one-dimensional materials having rod-like arrangements that are stabilized by threefold hydrogen bonding. We found that when nitrate was applied, the rod-like BTA spontaneously formed into a random aggregate due to the deformation of its hydrogen bonding to form inactive nitroso groups for non-optical sensing capability. For the optical chemosensor, the aromatic benzene is decorated as a side-chain of BPz to ensure that cage-shaped molecules make maximum use of their centre providing metal-metal interactions for fluorescence-based sensing materials. In particular, when exposed to benzene, Cu-BPz displayed a blue-shift of its original emission band from 616 to 572 nm (Δ = 44 nm) and emitted bright orange to green emission colours. We also observe a different mode of fluorescence-based sensing materials for Au-BPz, which shows a particular quenching mechanism resulting in 81% loss of its original intensity on benzene exposure to give less red-orange emission (λ = 612 nm). The BTA and BPz synthesized are promising high-performance supramolecular chemosensors based on the non-optical and optical sensing capability of a particular interest analyte.

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