scholarly journals Selective binding of (thio)sulfate and phosphate in water by quaternary ammonium functionalized oligo-ureas

2019 ◽  
Vol 55 (12) ◽  
pp. 1714-1717 ◽  
Author(s):  
Zhe Huang ◽  
Chuandong Jia ◽  
Biao Wu ◽  
Santa Jansone-Popova ◽  
Charles A. Seipp ◽  
...  
Keyword(s):  
Quaternary Ammonium ◽  
Water Soluble ◽  
Soluble Receptors ◽  
Selective Binding ◽  
Adenosine Phosphates

Functionalization of oligo-ureas with quaternary ammonium groups leads to water soluble receptors for selective binding of adenosine phosphates in water.

scholarly journals Rational Design of Molecularly Imprinted Polymers Using Quaternary Ammonium Cations for Glyphosate Detection

Sensors ◽  
2021 ◽  
Vol 21 (1) ◽  
pp. 296
Author(s):  
Mashaalah Zarejousheghani ◽  
Alaa Jaafar ◽  
Hendrik Wollmerstaedt ◽  
Parvaneh Rahimi ◽  
Helko Borsdorf ◽  
...  
Keyword(s):  
Molecularly Imprinted Polymers ◽  
Quaternary Ammonium ◽  
Photoelectron Spectroscopy ◽  
Rational Design ◽  
Water Soluble ◽  
Trimethylammonium Chloride ◽  
Molecularly Imprinted ◽  
Functional Monomers ◽  
Imprinted Polymers ◽  
Quaternary Ammonium Cations

Molecularly imprinted polymers have emerged as cost-effective and rugged artificial selective sorbents for combination with different sensors. In this study, quaternary ammonium cations, as functional monomers, were systematically evaluated to design imprinted polymers for glyphosate as an important model compound for electrically charged and highly water-soluble chemical compounds. To this aim, a small pool of monomers were used including (3-acrylamidopropyl)trimethylammonium chloride, [2-(acryloyloxy)ethyl]trimethylammonium chloride, and diallyldimethylammonium chloride. The simultaneous interactions between three positively charged monomers and glyphosate were preliminary evaluated using statistical design of the experiment method. Afterwards, different polymers were synthesized at the gold surface of the quartz crystal microbalance sensor using optimized and not optimized glyphosate-monomers ratios. All synthesized polymers were characterized using atomic force microscopy, contact angle, Fourier-transform infrared, and X-ray photoelectron spectroscopy. Evaluated functional monomers showed promise as highly efficient functional monomers, when they are used together and at the optimized ratio, as predicted by the statistical method. Obtained results from the modified sensors were used to develop a simple model describing the binding characteristics at the surface of the different synthesized polymers. This model helps to develop new synthesis strategies for rational design of the highly selective imprinted polymers and to use as a sensing platform for water soluble and polar targets.

A water-soluble probe with p-hydroxybenzyl quaternary ammonium linker for selective imaging in senescent cells

2020 ◽  
Vol 1133 ◽  
pp. 99-108
Author(s):  
Zhen Zhen ◽  
Shulei Zhu ◽  
Jiyu Jin ◽  
Lei Wang ◽  
Wei Lu
Keyword(s):  
Quaternary Ammonium ◽  
Water Soluble

Molecular Selective Binding of Pyridinium Guest Ions by Water-Soluble Calix[4]arenes

2005 ◽  
Vol 2005 (21) ◽  
pp. 4581-4588 ◽  
Author(s):  
Yu Liu ◽  
En-Cui Yang ◽  
Yong Chen ◽  
Dong-Sheng Guo ◽  
Fei Ding
Keyword(s):  
Water Soluble ◽  
Selective Binding

Water Soluble Coumarin Quaternary Ammonium Chlorides: Synthesis and Biological Evaluation

2020 ◽  
Author(s):  
Mert O. Karataş ◽  
Samir A. A. Noma ◽  
Canbolat Gürses ◽  
Sevgi Balcıoğlu ◽  
Burhan Ateş ◽  
...  
Keyword(s):  
Quaternary Ammonium ◽  
Biological Evaluation ◽  
Water Soluble ◽  
Synthesis And Biological Evaluation

The Selective Binding of Anions to Gemini and Trimeric Surfactants at Air/Solution Interfaces

2004 ◽  
Vol 57 (3) ◽  
pp. 193 ◽  
Author(s):  
Betty Thalody ◽  
Gregory G. Warr
Keyword(s):  
Quaternary Ammonium ◽  
Marked Decrease ◽  
Surfactant Solution ◽  
Selective Binding ◽  
Selective Uptake ◽  
Spacer Length ◽  
Quaternary Nitrogen ◽  
Ion Flotation ◽  
Trimeric Surfactants ◽  
Air Interfaces

The selective binding of Br–, Cl–, I–, NO3–, and salicylate anions to quaternary ammonium gemini and trimer surfactant solution/air interfaces has been studied by ion flotation, examining the effect of the degree of oligomerization and polymethylene spacer length between the quaternary nitrogen atoms. The binding of the halides and nitrate showed no significant change with degree of oligomerization. However, salicylate showed a marked decrease in selective uptake with increasing degree of oligomerization, and increased with increasing spacer length.

scholarly journals Properties of Cotton Fabric Modified with a Chitosan Quaternary Ammonium Salt Nanoparticle

2018 ◽  
Vol 26 (4(130)) ◽  
pp. 116-121 ◽  
Author(s):  
Wei Zhang ◽  
Xinlan Dai ◽  
Jinjie Zhou
Keyword(s):  
Cotton Fabric ◽  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Quaternary Ammonium Salt ◽  
Cellulose Fibre ◽  
Water Soluble ◽  
Chitosan Derivative ◽  
Covalent Bonds ◽  
Wrinkle Resistance ◽  
Alkaline Conditions

In this study, a novel fibre-reactive nanoparticle was synthesised in three steps. First a water-soluble chitosan derivative, N-[(2-hydroxy-3-trimethylammonium)propyl] chitosan chloride (short for HTCC), was prepared by reacting chitosan with 2,3-epoxypropyltrimethylammonium chloride. Second the HTCC was further modified by reacting it with N-(hydroxymethyl)- acrylamide to prepare a fibre-reactive chitosan derivative, O-methyl acrylamide quaternary ammonium salt of chitosan (short for NMA-HTCC), which can form covalent bonds with cellulose fibre under alkaline conditions. Thirdly NMA-HTCC nanoparticles were prepared by the ionotropic gelation reaction method. The particle size and TEM researches indicated that the globular NMA-HTCC nanoparticle with a size distribution of 15 - 50 nm was successfully prepared and presented good dispersity and stability. Then the NMA-HTCC nanoparticle was used for the textile finishing of cotton fabric. The modified cotton fabric demonstrated excellent durable wrinkle-resistance and antibacterial activity against Staphylococcus aureus and Escherichia coli, even after 50 repeated launderings. Moreover the shrinkage-resistance of the modified cotton fabric was distinctly improved, and the contact angle was slightly larger, while the whiteness and mechanical properties had not changed in an obvious way.

scholarly journals The interphase distribution of light REE Ce(III) and La(III) in system based on PEG-1500 – NaNO3 – H2O with the quaternary ammonium base addition

2022 ◽  
Vol 1212 (1) ◽  
pp. 012023
Author(s):  
A V Levina ◽  
A Ya Fedorov ◽  
M I Fedorova
Keyword(s):  
Organic Solvents ◽  
Quaternary Ammonium ◽  
Water Solution ◽  
Distribution Coefficients ◽  
Water Soluble ◽  
Process Time ◽  
Phase System ◽  
Two Phase ◽  
Quaternary Ammonium Base ◽  
Promising Alternative

Abstract The problem of e-waste processing and recovery of valuable metals from such waste for the second use is attracting more and more scientists’ attention. Liquid extraction as one of hydrometallurgy steps is a traditional method for the metal recovery. However, application of solvent extraction is not meet the green chemistry principles due to organic solvents. Aqueous two-phase systems based on water-soluble polymers are promising alternative for hazardous organic solvents. In this work the dependencies of Ce(III) and La(III) distribution coefficients from process time and the initial quaternary ammonium base concentration have been achieved. Also, based on the Ce(III) and La(III) extraction isotherms it has been shown that the metals initial concentrations are highly affects the distribution coefficients of studied metals. The possibility of aqueous two-phase system application as a solvent for quaternary ammonium salt for light REE (Ce(III) and La(III)) extraction from water solution has been shown.

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