Results 21 to 30 of about 123,940 (316)

Zein Nanoparticles Containing Arginine-Phenylalanine-Based Surfactants: Stability, Antimicrobial and Hemolytic Activity

Nanomaterials, 2023
Although cationic surfactants have a remarkable antimicrobial activity, they present an intrinsic toxicity that discourages their usage. In this work novel zein nanoparticles loaded with arginine-phenylalanine-based surfactants are presented.
Lourdes Perez, Zakaria Hafidi, Aurora Pinazo, Maria Teresa García, Manuel Martín-Pastor, Francisco Fábio Oliveira de Sousa   +5 more
doaj   +1 more source

Phase-field modeling droplet dynamics with soluble surfactants

, 2010
Using lattice Boltzmann approach, a phase-field model is proposed for simulating droplet motion with soluble surfactants. The model can recover the Langmuir and Frumkin adsorption isotherms in equilibrium.
Haihu Liu, Zhang, Y.H., Liu, H., Yonghao Zhang   +3 more
core   +1 more source

Synthesis and properties of lipoamino acid/fatty acid mixtures. Influence of the amphiphilic structure. [PDF]

, 2009
The acylation of amino acids by acid chlorides with from 8 to 12 carbon atoms, in alkaline aqueous medium following Shotten-Baumann reaction, results in sodium salts of Nα-acylamino acids and fatty acids mixture. These lastest are present in proportion
Jean‐François Blanco, Blanco, J.-F., Rondel, Caroline, Mouloungui, Zephirin,, Blanco, Jean-François, Isabelle Alric, Mouloungui, Zéphirin, Zéphirin Mouloungui, Mouloungui, Zephirin, Z., Françoise Silvestre, Alric, Isabelle, Caroline Rondel, Silvestre, Françoise, Rondel, C.   +13 more
core   +1 more source

Synthesis of tri‐cationic surfactants containing two amide functional groups and inhibition effectiveness against metal corrosion in acidic medium

, 2022
In this study, two tri-cationic surfactants containing two amide functional groups and three positively charged quaternary aminium nitrogens were synthesized.
Serkan Öztürk, Nuray Altınölçek, Öztürk, Serkan, Altınölçek, Nuray   +3 more
core   +1 more source

RETRACTED: Reactive Mesoporous pH-Sensitive Amino-Functionalized Silica Nanoparticles for Efficient Removal of Coomassie Blue Dye

Nanomaterials, 2019
In this work, new smart mesoporous amine-functionalized silica nanoparticles were prepared from hydrolyzing microgels based on N-isopropyl acrylamide-co-vinyltrimethoxysilane microgels with tetraethoxysilicate and 3-aminopropyltriethoxysilane by sol-gel ...
Nourah I. Sabeela, Tahani M. Almutairi, Hamad A. Al-Lohedan, Abdelrahman O. Ezzat, Ayman M. Atta   +4 more
doaj   +1 more source

Fabrication of Magnetite Nanoparticles With Hydrophobic Imidazolium Ionic Liquid for the Efficient Role in Oil Spill Collection

Journal of Chemistry
As one of the main environmental obstacles, oil spill causes serious consequences on the environment, fauna, and flora. The traditional methods for cleaning up oil spills were found time-consuming, expensive, and ineffective. Magnetite nanoparticles have
Abdelrahman O. Ezzat, Mohd Sajid Ali, Noorah A. Faqihi, Hamad A. Al-Lohedan   +3 more
doaj   +1 more source

Influence of Green Corrosion Inhibitor based on Chitosan Ionic Liquid on the Steel Corrodibility in Chloride Solution

International Journal of Electrochemical Science, 2015
Ionic liquids ( ILs) attracted great attention as green corrosion inhibitors for steel in aggressive environments. The present work synthesize new IL using chitosan through amidation and quaternization reaction with oleic acid and p-toluene sulfonic acid,
Gamal A. El-Mahdy, Ayman M. Atta, Hamad A. Al-Lohedan, Abdelrahman O. Ezzat   +3 more
doaj   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Polymeric surfactants

, 2022
S.246-249The contribution gives an overview over polymeric surfactants that are suited to act as micellar polymers in aqueous media. The various polymer types are presented, and the characteristic property profiles distinguishing the classes are ...
Laschewsky, A.
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