Results 291 to 300 of about 449,412 (331)

Removal and Fate of Quaternary Ammonium Compounds in Sewage Treatment Plants with Conventional Activated Sludge and Oxidation Ditch Processes

Seiya Hanamoto, Dingwen Yao, Tatsuya Osaka, Yuki Minami, Masato Honda   +4 more
openalex   +1 more source

Potent Liver‐Tropic mRNA Lipid Nanoparticles: ApoE‐Mediated Delivery Through a Low‐Density Lipoprotein Receptor Independent Uptake Mechanism

Advanced Materials, EarlyView.
Helper and ionizable lipids play a crucial role in determining ApoE binding and subsequent liver tropism and LDLR‐mediated uptake. Ionizable lipids primarily govern the LDLR‐independent uptake pathway. This complementary interplay between lipid components ultimately governs LNP delivery performance and therapeutic efficacy in the liver.
Ashish Sarode, Christian Ortiz, Tadeh Derstepanian, Natalia Vargas‐Montoya, Priyal Patel, Nikita Khadse, Saikat Manna, Ryan Landis, Joseph Skaleski, Lianne Boeglin, Hongfeng Deng, Anusha Dias, Hong Wang, Debora Barreiros Petropolis, Barak Yahalom, Shrirang Karve, Frank DeRosa   +16 more
wiley   +1 more source

Two‐Photon 3D Printing of Functional Microstructures Inside Living Cells

Advanced Materials, EarlyView.
This study demonstrates 3D printing inside living cells by using two‐photon photo‐lithography. A bio‐compatible photoresist is injected into cells and selectively polymerized with a femtosecond laser, creating custom‐shaped intracellular structures with submicron resolution.
Maruša Mur, Aljaž Kavčič, Uroš Jagodič, Rok Podlipec, Matjaž Humar   +4 more
wiley   +1 more source

A Quasi‐Solid Ionic Liquid‐Polymer Hybrid Electrolyte for Shuttle‐Free and Dendrite‐Free Aqueous Zinc─Bromine Batteries

Advanced Materials, EarlyView.
A quasi‐solid ionic liquid‐polymer hybrid electrolyte is proposed to achieve shuttle‐free and dendrite‐free aqueous Zn─Br batteries. Synergetic effects between Zn2+ selective conduction of polyanionic network and polybromide complexing additive suppress the shuttle effect and improve Zn reversibility.
Rujiao Ma, Shao‐Jian Zhang, Xun Zhao, Han Wu, Qianru Chen, Junnan Hao, Shi‐Zhang Qiao   +6 more
wiley   +1 more source

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Ammonium compounds

2022
This chapter focuses on amines. Saturated amines are regarded as the simplest organonitrogen compound. The chapter highlights the importance of amines as they occur widely in nature and are used often as building blocks for more complex compounds and co-reagents in numerous organic reactions.
Patrick D. Bailey, Keith M. Morgan
openaire   +1 more source

Determination of Quaternary Ammonium Compounds

Journal of Pharmaceutical Sciences, 1961
Abstract The official potassium ferricyanide assays of quaternary ammonium, preparations can be modified to include a potentiometric titration with silver nitrate instead of the suggested iodometric method for the determination of the excess ferricyanide. Sodium nitrite interferes with the ferricyanide assay methods.
J J, HEFFERREN, C, DIETZ
openaire   +2 more sources

Unsaturated bisquaternary ammonium compounds

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1970
1. We obtained a number of unsaturated bisquaternary ammonium compounds. 2. The preparations produced are of pharmacological interest, having curare activity.
T. A. Kost, R. Kh. Freidlina
openaire   +1 more source

Quaternary ammonium compounds

36. Savetovanje dezinfekcija, dezinsekcija i deratizacija jedan svet - jedno zdravlje - zbornik radova
Next to their positive role, microorganisms are associated with numerous undesirable effects, including many diseases, food spoilage, and decay. Humanity have been combating microorganisms for centuries. It was observed that water could be carried on long journeys in silver containers or with silver or copper coins, and food was preserved using salt ...
Nemanja Zdravković, Milan Ninković, Ivan Pavlović, Zorica Zdravković, Biljana Aleksić, Teodora Grujović, Oliver Radanović   +6 more
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Di(phenylmercuri)ammonium compounds

Journal of the Chemical Society A: Inorganic, Physical, Theoretical, 1968
Reaction of phenylmercuric acetate and phenylmercuric chloride with concentrated aqueous ammonia yields di(phenylmercuri)ammonium compounds, (PhHg)2+X–(X = OAc or Cl). The structures of these compounds and of the corresponding nitrate and sulphate have been established by infrared spectroscopy.
G. B. Deacon, J. H. S. Green
openaire   +1 more source

Diquaternary Ammonium Compounds as Transfection Agents

Bioconjugate Chemistry, 2001
Diquaternary ammonium salts constitute a new class of reagent for mediating transfection of DNA in mammalian cell lines. N,N'-dioleyl-N,N,N',N'-tetramethyl-1,2-ethanediamine (TmedEce), N,N'-dioleyl-N,N,N',N'-tetramethyl-1,3-propanediamine (PropEce), N,N'-dioleyl-N,N,N',N'-tetramethyl-1,6-hexanediamine (HexEce), and their corresponding N,N'-dicetyl ...
H S, Rosenzweig, V A, Rakhmanova, R C, MacDonald   +2 more
openaire   +2 more sources