نتایج جستجو برای: zwitterionic drugs

تعداد نتایج: 226648  

2012
Bhupinder Singh Sekhon

Zwitterionic co-crystals family could be basis for very different structural and theoretical examinations as their ability to alter solubility and deliver a wide solubility spectrum is receiving more attention. Many zwitterionic co-crystals crystal structures exhibited carboxylate-hydroxyl supramolecular heterosynthons preference. In addition to examples of zwitterionic co-crystals in the Cambr...

Journal: :Advanced Energy Materials 2021

Zwitterionic Electrocatalysts In article number 2101926, Yongguang Zhang, Xin Wang, Zhongwei Chen and co-workers design a novel zwitterionic conjugated micro/mesoporous polymer on carbon nanotubes as an assembled nanotentacle, serving highly efficient sulfur electrocatalyst for Li–S batteries. The engineering provides new strategic perspective toward rational polysulfide regulation conversion, ...

Journal: :Natural Product Communications 2022

Dendrobium fimbriatum Hook is an important medicinal and ornamental orchid that may lead to drugs cosmetics. In this study, 2 analytical strategies were combined describe the detailed composition of a hydroethanolic extract whole plant. The CARAMEL approach, based on centrifugal partition chromatography nuclear magnetic resonance data interpretation, allowed rapid dereplication 21 major constit...

Journal: :Biomacromolecules 2007
Luigi Cristofolini Tatiana Berzina Svetlana Erokhina Oleg Konovalov Victor Erokhin

We present here results that demonstrate the formation of a complex of DNA with zwitterionic dipalmitoylphosphatidylcholine (DPPC) monolayer at the air-water interface in the presence of Ca2+ ions; in particular, we show that the presence of Ca2+ cations is essential for the formation of the complex of DPPC with DNA. We characterize the resulting structure by X-ray reflectivity and by null-elli...

Journal: :Nature chemistry 2012
Huang Qiu Ming Li Li-Qin Jiang Feng-Ping Lv Li Zan Chang-Wei Zhai Michael P Doyle Wen-Hao Hu

Reactions with the unstable and highly reactive zwitterionic intermediates generated in processes catalysed by transition metals are providing new opportunities for molecular constructions. Insertion reactions involve the collapse of zwitterionic intermediates, but trapping them would allow structural elaborations that are not currently available. To synthesize complex molecules in this manner,...

Bio-based surfactants have attracted increasing attention due to their renewable resources and excellent surface properties. In this study, a novel bio-based sulfonic zwitterionic surfactant (BSZS) derived from transgenic soybean oil was prepared using a simple reaction route with two steps of the amidation and quaterisation. The bio-based sulfonic zwitterionic surfactant showed a critical mice...

Journal: :Journal of the American Chemical Society 2002
Connie C Lu Jonas C Peters

The synthesis of a zwitterionic Pd(II) complex supported by an anionic bis(phosphino)borate ligand, Ph(2)B(CH(2)PPh(2))(2) (abbreviated as [Ph(2)BP(2)]), is reported. The new complex, [Ph(2)BP(2)]PdMe(THF), is active for CO and ethylene copolymerization. The copolymerization activity and polyketone molecular weight for the neutral, zwitterionic system are compared with those for the cationic sy...

Journal: :Green Chemistry 2021

Zwitterionic compounds are less ecotoxic than their analogous ionic liquids.

2013
Chun-Jen Huang Ying-Chih Chang

A novel biointerface bearing zwitterionic carboxybetaine moieties was developed for effective resistance to nonspecific adsorption of proteins and blood cells. Self-assembled thin films (SAFs) of (N,N-dimethylaminopropyl) trimethoxysilane were formed as mattress layers by either vapor or solution deposition. Subsequently, the tertiary amine head groups on SAFs were reacted with β-propiolactone ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید