Results 51 to 60 of about 255,817 (279)

Aggregation behavior of newly synthesized Gemini cationic surfactants in absence and in presence of different inorganic salts in 15% DMSO–water solvent

Scientific Reports
In this study, three Gemini cationic surfactants related to thiazol-2-amine with three hydrocarbon chain lengths including 3-hexylthiazol-3-ium (TAC6), 3-dodecylthiazol-3-ium (TAC12) and octadecylthiazol3-ium (TAC18) were prepared.
Farid I. El-Dossoki, Mohamed A. Migahed, Mahmoud M. Gouda, Samir Abd El Hady Abd El-Maksoud   +3 more
doaj   +1 more source

Higher-order mesoscopic self-assembly of fluorinated surfactants on water surfaces

NPG Asia Materials, 2023
Surfactants containing fluorocarbon chains have been increasingly studied because they self-assemble into a variety of microscopic and mesoscopic domains and tend to form highly ordered patterns at the air/water interface; these patterns are clearly ...
Motomu Tanaka, Marie Pierre Krafft, Andreea Pasc   +2 more
doaj   +1 more source

Scalable Fabrication of Chemically Stabilized Gelatin Hydrogel Fibers by Thermal Drawing

Advanced Materials Interfaces, EarlyView.
Scalable processing of hydrogel fibers remains a major challenge. By coupling thermal drawing with Maillard chemistry, a transient viscous‐flow window is created that enables continuous fabrication of microstructured gelatin fibers tens of meters long, while continued in situ crosslinking during drawing stabilizes the fibers for physiological ...
Chaoqun Dong, Bastien Schyrr, Stella Laperrousaz, Hritwick Banerjee, Andreas Leber, Fabien Sorin   +5 more
wiley   +1 more source

THE USE OF OIL AND FAT WASTE IN TECHNOLOGICAL SYSTEMS FOR SUSTAINABLE DEVELOPMENT

Environmental Problems, 2023
The paper shows the possibility of efficiently using oilseed production and processing waste. The methods of chemical transformation of by-products of oil and fat production into technological systems for sustainable development have been developed. They
Larysa Bodachivska, Oleksii Papeikin , Oleg Safronov, Irina Venger , Olena Spas`ka   +4 more
doaj   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

Molecular Dynamics Simulations of the Short-Chain Fluorocarbon Surfactant PFH_XA and the Anionic Surfactant SDS at the Air/Water Interface

Molecules
The research and development of alternatives to long-chain fluorocarbon surfactants are desperately needed because they are extremely toxic, difficult to break down, seriously harm the environment, and limit the use of conventional aqueous film-forming ...
Jinqing Jiao, Tao Li, Guangwen Zhang, Jing Xiong, Xuqing Lang, Xiaolong Quan, Yiwei Cheng, Yuechang Wei   +7 more
doaj   +1 more source

Probing Electrocatalyst Design for Product Selectivity in CO2 Reduction

Advanced Science, EarlyView.
Selective CO2 electroreduction is controlled by catalyst structure, dynamic surface reconstruction, adsorbate interactions, and reaction microenvironment. This review summarizes Cu‐ and non‐Cu‐based catalysts, single‐atom and molecular systems, degradation pathways, and operando/computational strategies for steering CO2RR toward hydrocarbons ...
Suvodeep Sen, Bapan Biswas, Apinya Ngoipala, Julia Wiktor, Ujjwal Pal, Shalini Singh   +5 more
wiley   +1 more source

Counterion-Mediated Assembly of Fluorocarbon–Hydrocarbon Surfactant Mixtures at the Air–Liquid Interface: A Molecular Dynamics Study

Molecules
This study employs molecular dynamics simulations to investigate counterion effects (Li+, Na+, K+) on the interfacial aggregation of mixed short-chain fluorocarbon, Perfluorohexanoic acid (PFHXA), and Sodium dodecyl sulfate (SDS) surfactants.
Xiaolong Quan, Tong Tong, Tao Li, Dawei Han, Baolong Cui, Jing Xiong, Zekai Cui, Hao Guo, Jinqing Jiao, Yuechang Wei   +9 more
doaj   +1 more source

Biodegradation of diesel oil wastes for production of biosurfactants by two Actinomycetes strains [PDF]

Research Journal of Applied Biotechnology, 2015
Biotechnological studies on production of bio-surfactants by actinomycetes strains that were isolated from Egyptian soil were carried out using some diesel oil waste samples. Two actinomycetes strains were found to give bio-surfactant production up to 40
Ayman Eldourghamy, Sabha Elsabagh, Abdallah Ismail   +2 more
doaj   +1 more source

Synthesis and Solution Properties of Hydrocarbon Surfactants Structurally Analogous to Hybrid Surfactants

Journal of Japan Oil Chemists' Society, 1999
An aqueous solution of a hybrid anionic surfactant containing a fluorocarbon chain and a hydrocarbon chain in a molecule, C6F13C6H4COCH (SO3Na) C4H9 (F6H4), shows extremely high viscosity at a condition of 30-40°C and 10 wt%. In order to elucidate the influence of the fluorocarbon chain on the high viscosity, new hydrocarbon surfactants, CmH2m+1C6H4 ...
KONDO, Yukishige, HAMASAKI, Masanori, TOBITA, Kazuhiko, SAKAI, Hideki, ABE, Masahiko, YOSHINO, Norio   +5 more
openaire   +1 more source