Results 1 to 10 of about 88,877 (298)

Study the adsorption properties of magnetite nanoparticles in the presence of different synthesized surfactants for heavy metal ions removal

Egyptian Journal of Petroleum, 2020
Co-precipitation method is used to prepare magnetite nanoparticles (Fe3O4) which stabilized by two nonionic and one cationic surfactant. 1H NMR used to confirm the chemical structure of the synthesized surfactants.
Fawzia I. El-Dib, Dalia E. Mohamed, Omnia A.A. El-Shamy, Marwa R. Mishrif   +3 more
doaj   +1 more source

The High Interfacial Activity of Betaine Surfactants Triggered by Nonionic Surfactant: The Vacancy Size Matching Mechanism of Hydrophobic Groups

Molecules
Alkyl sulfobetaine shows a strong advantage in the compounding of surfactants due to the defects in the size matching of hydrophilic and hydrophobic groups.
Guoqiao Li, Jinyi Zhao, Lu Han, Qingbo Wu, Qun Zhang, Bo Zhang, Rushan Yue, Feng Yan, Zhaohui Zhou, Wei Ding   +9 more
doaj   +1 more source

MIXTURES OF NON-IONIC SURFACTANTS FOR CLEANING COMPOSITIONS

Тонкие химические технологии, 2017
The surface behavior and micelle formation of binary and ternary compositions of nonionic surfactants are studied in relation to their cleaning ability with respect to cotton fabric.
E. F. Bukanova, V. M. Filippenkov, Y. Revina   +2 more
doaj   +1 more source

Impacts of heat and noncovalent bonding on interfacial property and structure of goat milk fat globule membrane proteins

npj Science of Food
This study explored how heat treatment (20–80 °C) and surfactants affect the structure and interfacial properties of goat milk fat globule membrane (MFGM) proteins.
Yunyan Luo, Yang Song, Libing Su, Yinying Zhou, Chong Chen, Zhongyao Du, Yang Sun   +6 more
doaj   +1 more source

Thixotropic evaluation of bentonitic clay dispersions modified with nonionic surfactants for organic drilling fluids

Cerâmica
The use of nonionic surfactants to modify the surface of bentonite is still quite restricted, although many advantages of that method can be found in the literature, like superior stability and low toxicity.
I. A. Silva, I. D. S. Pereira, F. K. A. Sousa, R. R. Menezes, G. A. Neves, H. C. Ferreira   +5 more
doaj   +1 more source

Nonionic Surfactants in Paper Electrophoresis

Clinical Chemistry, 1960
Abstract 1. A modification of the usual paper electrophoretic procedure has been made by including in the buffer medium 0.05 per cent of certain alkylphenyl ethers of polyethylene glycol. 2. This modified procedure yields electrophoretic patterns of blood serum proteins that may be subdivided into 12 fractions— albumin, α1-
openaire   +2 more sources

Non-Aqueous Emulsions Stabilised by Nonionic Nonyl Phenol Ethoxylate Reactive Polymerisable Surfactants

International Journal of Electrochemical Science, 2013
A new series of nonionic polymerisable nonyl phenol ethoxylates (NPEs) has been prepared as organic solvent-soluble surfactants in which straight, branched and cyclic alkyls and phenyl acted as solvophilic segment and polyoxyethylene, or maleate chains ...
Amro K.F. Dyab, Ayman M. Atta, Gamal A. EL-Mahdy   +2 more
doaj   +1 more source

Enhanced oil recovery by nonionic surfactants considering micellization, surface, and foaming properties

Petroleum Science, 2017
Surfactants for enhanced oil recovery are important to study due to their special characteristics like foam generation, lowering interfacial tension between oleic and aqueous phases, and wettability alteration of reservoir rock surfaces.
Achinta Bera, Ajay Mandal, Hadi Belhaj, Tarkeswar Kumar   +3 more
doaj   +1 more source

Increased Antibacterial Activity of Cephalosporins against Francisella Tularensis

Антибиотики и Химиотерапия, 2020
The aim of the study is to determine the effect of surfactants on the level of resistance of tularemia microbe to ß-lactam antibiotics (penicillins and cephalosporins). Material and methods.
N. V. Pavlovich, M. V. Tsimbalistova
doaj   +1 more source

Desorption of hydrocarbon chains by association with ionic and nonionic surfactants under flow as a mechanism for enhanced oil recovery

Scientific Reports, 2017
The need to extract oil from wells where it is embedded on the surfaces of rocks has led to the development of new and improved enhanced oil recovery techniques.
Ketzasmin A. Terrón-Mejía, Roberto López-Rendón, Armando Gama Goicochea   +2 more
doaj   +1 more source