Results 101 to 110 of about 64,444 (333)

Microemulsions with excellent water solubilizing capacity at high hydrocarbon levels with quaternary ammonium salts as surfactants

, 1985
In W/O microemulsions prepared by adding dry surfactant to a mixture of 85% heptane or toluene and 15% pentanol, then titrating with water, systems using quaternary ammonium salts have been shown to be capable of solubilizing much larger amounts of water
Venable, Raymond L., Raymond L. Venable
core   +1 more source

Gold(I)-Catalyzed Oxidative Amination of Amino-ynones to Quaternary Ammonium-olate Salts: The Benefit of a P,N-Bidentate Ligand

, 2021
A novel P,N-bidentate ligand-assisted gold-catalyzed oxidative amination of β-amino-ynones has been developed, allowing the simple and efficient construction of various quaternary ammonium-olate salts in good to excellent yields.
Jing Guo (102972), Zi-Sheng Chen, Xin Zhao (71840), Wen-Shuai Chen (11664177), Xin Zhao, Kegong Ji, Kegong Ji (2031448), Jing Guo, Wen-Shuai Chen, Zi-Sheng Chen (2130436)   +9 more
core   +1 more source

Antimicrobial activity of quaternary ammonium salts: structure-activity relationship

Medicinal Chemistry Research, 2022
M. Nadagouda, P. Vijayasarathy, A. Sin, H. Nam, Sanaullah Khan, Javad B. M. Parambath, Ahmed Abouzeed Mohamed, Changseok Han   +7 more
semanticscholar   +1 more source

Deep eutectic solvents formed by quaternary ammonium salts and aprotic organic compound succinonitrile

Journal of Molecular Liquids, 2019
Deep eutectic solvents (DESs) are conventionally prepared by mixing quaternary ammonium salts and protic organic compounds such as alcohol, amide or carboxylic acid.
Dezhong Yang, Shaoze Zhang, Xiao‐Guang Sun, D. Jiang, S. Dai   +4 more
semanticscholar   +1 more source

Programmable Hydration Pathways Enable Reconfigurable Ionic Thermoelectrics for Energy Harvesting and Thermal‐Tactile Interaction

Advanced Science, EarlyView.
Programmable hydration pathways enable reconfigurable ionic thermoelectrics in polyquaternium hydrogels. By coupling microscopic solvation, mesoscale water channels, and macroscopic boundary control, hydration‐gated protonics decouples thermopower, response speed, and stability.
Zehao Zhao, Yun Shen, Dongyan Xu
wiley   +1 more source

Extraction and spectrophotometric determination of Hg2+ as complex anion HgI3-

Eclética Química, 2018
A method has been developed for the extraction and spectrophotometric determination of Hg2+ in a concentration range of 0.2-1.0 mg L-1; following the Lambert-Beer's law using high molecular weight quaternary ammonium salts dissolved in chloroform.
Zaida FERNÁNDEZ TERRA, Rubén DEL TÓRO DÉNIZ, Humberto VARELA DE MOYA   +2 more
doaj   +1 more source

Room temperature molten salts based on quaternary ammonium cations

, 1997
Room temperature molten salts based on quaternary ammonium ...
J Sun (7716419), D MacFarlane (13288728), Maria Forsyth (13084584)   +2 more
core  

Multidimensional and Multifunctional Laser‐Induced Graphene (LIG) for Point‐of‐Care and Wearable Biosensing, Theranostics, and Bioactive Interfaces Toward Personalized Healthcare and Regenerative Medicine

Advanced Science, EarlyView.
Multidimensional laser‐induced graphene (LIG) spanning from 0D to 3D architectures is comprehensively reviewed for multifunctional biomedical platforms, including biosensing, theranostics, and bioactive interface applications, which highlights its potentials for point‐of‐care diagnostics, wearable health monitoring, smart drug delivery, and tissue ...
Li Zhang, Yurou Yuan, Xiaohong Ding, Wing Cheung Mak   +3 more
wiley   +1 more source

Design of C2-Symmetric Chiral Phase-transfer Catalysts for Practical Asymmetric Synthesis

CHIMIA, 2007
A series of structurally rigid, chiral quaternary ammonium salts derived from commercially available (S)- or (R)-1,1?-bi-2-naphthol have been designed as new C2-symmetric chiral phase-transfer catalysts.
Keiji Maruoka
doaj   +1 more source

Integrated Hydrophilic Interdigitated Network for Silicone Rubber via a Gradient Polarity Modification Strategy

Advanced Science, EarlyView.
This work overcomes the long‐standing challenge of hydrophilic modification of silicone rubber via a gradient polarity modification strategy. By constructing a hydrophilic interpenetrating network within cured SR, simultaneous surface‐to‐bulk modification is achieved while enabling monitoring through a Eu3+ complex fluorescent tracer.
Lihui Zhang, Rui Wang, Pingru Su, Yao Kou, Zhengfeng Ma, Hui Tang, Mingying Wang, Lixin Wang, Chunyu Zhou, Shuanhong Ma, Yu Tang, Feng Zhou   +11 more
wiley   +1 more source