نتایج جستجو برای: zwitterionic

تعداد نتایج: 2504  

Journal: :Journal of the American Chemical Society 2010
Alfonso Melloni Riccardo Rossi Paccani Donato Donati Vinicio Zanirato Adalgisa Sinicropi Maria Laura Parisi Elena Martin Mikhail Ryazantsev Wan Jian Ding Luis Manuel Frutos Riccardo Basosi Stefania Fusi Loredana Latterini Nicolas Ferré Massimo Olivucci

We report the results of a multidisciplinary research effort where the methods of computational photochemistry and retrosynthetic analysis/synthesis have contributed to the preparation of a novel N-alkylated indanylidene-pyrroline Schiff base featuring an exocyclic double bond and a permanent zwitterionic head. We show that, due to its large dipole moment and efficient photoisomerization, such ...

Journal: :Journal of colloid and interface science 2002
T Somasundaran Namita Deo P Somasundaran

The ability of small particles to associate with DNA and to transport it to desired targets without being subjected to interferences can make them efficient vehicles for gene delivery. Keeping these requirements in mind, zwitterionic latex particles with two different functional tethers were chosen for studying their interaction with DNA as vehicle complexes. From adsorption and electrokinetic ...

Journal: :Angewandte Chemie 2004
Rainer A Böckmann Helmut Grubmüller

Step by step: The sequential coordination of calcium ions (yellow) to four lipid carbonyl oxygen atoms in neutral zwitterionic phospholipid bilayers has been studied by molecular dynamics simulations.

Journal: :Chemical communications 2014
Zehuai Mou Bo Liu Meiyan Wang Hongyan Xie Ping Li Lei Li Shihui Li Dongmei Cui

A highly isotactic stereoblock PLA has been obtained using the achiral heteroscorpionate zwitterionic zinc complexes as catalysts, for the first time, via a chain-end control mechanism.

Journal: :Chemical communications 2010
Kuntal Manna Arkady Ellern Aaron D Sadow

The zwitterionic cyclopentadienyl-bis(2-oxazolinyl)borate diamidozirconium(IV) complex is a precatalyst for the cyclization of aminoalkenes to five- and six-membered rings under mild conditions.

Journal: :Chemical communications 2006
Dibyendu Khatua Rabindranath Maiti Joykrishna Dey

First demonstration of heat and pH-responsive hydrogel of SDS and a zwitterionic amphiphile, sodium N-(n-dodecyl-2-aminoethanoyl)-L-valinate with very low minimum gelation concentration.

Journal: :The Journal of chemical physics 2006
Jianwen Jiang Jian Feng Honglai Liu Ying Hu

A molecular thermodynamic theory is developed for polyampholytes from the coarse-grained charged hard-sphere chain model. The phase behavior of polyampholytes with variations in sequence and chain length is satisfactorily predicted by the theory, consistent with simulation results and experimental observations. At a fixed chain length, the phase envelope expands as the sequence of charge distri...

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