Results 21 to 30 of about 9,174,303 (293)
Amphoteric surface active agents
Grasas y Aceites, 1995 2-[trimethyl ammonium, triethyl ammonium, pyridinium and 2-amino pyridinium] alkanoates, four series of surface active agents containing carbon chain C12, C14, C16 and C18carbon atoms, were prepared.
A.M. F. Eissa
doaj +1 more source
, 2022 Surface-active compounds (SACs), biomolecules produced by bacteria, yeasts, and filamentous fungi, have interesting properties, such as the ability to interact with surfaces as well as hydrophobic or hydrophilic interfaces.
Douglas Silva +21 more
core +1 more source
Hydroxamic acid surface active agents
Grasas y Aceites, 2001 p-Hydroxy phenyloctadecanol and p-hydroxy phenyloctadecanoic acid were used as new precursors for the preparation of surface active hydroxamic acid including different moles of propylene oxide.
M. H.M. Ahmed +2 more
doaj +1 more source
Acta Odontologica Turcica, 2017 Objective: The aim of this in vitro study was to evaluate the effect of addition of various surface-modifying agents to EDTA solution on the bond strength of an epoxy-based sealer to the root canal dentin. Materials and Method: Sixty single-rooted human
Mehmet Burak Güneşer +3 more
doaj +1 more source
Comparison of Respiratory Outcomes between Less Invasive Surfactant Administration and the Intubation-Surfactant-Extubation Technique in Premature Infants with Respiratory Distress Syndrome [PDF]
Neonatal Medicine, 2020 Purpose To compare respiratory outcomes between less invasive surfactant administration (LISA) and the intubation-surfactant-extubation (INSURE) technique in premature infants with respiratory distress syndrome (RDS). Methods We performed a retrospective
Hye Seon Kim +7 more
doaj +1 more source
Synthesis of Surface Active Agents. VI.
Journal of Japan Oil Chemists' Society, 1961 The surface activity of the α-substituted higher aliphatic acids was studied. These compounds were prepared by reaction of α-bromo-fatty acid with various compounds, such as sodium hydroxide, N-methyltaurine, monoethanolamine, diethanolamine, glycine, n-butylamine, ethylenediamine, potassium cyanide (The obtained α-cyano-fatty acid was hydrolyzed into ...
Mikio KAWATA, Ryohei ODA, Yoshihiko ITO
openaire +5 more sources
The effect of surfactants on electrochemical hydrogen production [PDF]
شیمی کاربردی روز, 2019 One of the problems of اydrogen production by the electrochemical method is forming and remaining of hydrogen bubbles on the surface of the electrode, which leads to considerable reduction in efficiency of hydrogen generation. The aim of this study is to
Ali Ghaffarinead +3 more
doaj +1 more source
Comparison of Efficient Ways of Mud Cake Removal from Casing Surface with Traditional and New Agents
Energies, 2021 The tightness of the casing-rock formation interface is one of the most important elements of drilling and cementing jobs. In the absence of the required tightness, there is a risk of gas migration directly to the ground, groundwater or atmosphere.
Marcin Kremieniewski +3 more
doaj +1 more source
Hemolysis by Nonionic Surface-active Agents
YAKUGAKU ZASSHI, 1966 The hemolytic actions of polyoxyethylene glycol monododecyl ethers, C12H25-(C2H4O)nOH, have been studied. The amount required of these agents to produce lysis was found to be linearly related to the red cell concentration within experimental error. This was interpreted as showing the significant role of the adsorption of nonionic agent molecules onto ...
T, Kondo, M, Tomizawa
openaire +4 more sources
Synthesis and surface active properties of cationic surface active agents from crude rice bran oil
Grasas y Aceites, 1999 Cationic surfactants of 2-hidroxy-3-(2- alkylamidopolyethyl amino) propane-1-triethylammonium hydroxides (ix-xui)a-d were prepared from fatty acids (i)a-d [palmitic, stearic, oleic, linoleic acid] and mixed fatty acids of crude rice bran oil ie [RBO ...
W. I. A. El-Dougdoug
doaj +1 more source