نتایج جستجو برای: micelle

تعداد نتایج: 3873  

2006
T. Ohkubo T. Koike K. Tsubone K. Tsuchiya H. Sakai M. Abe

We examined the synthesis and characterization of polymer micelle using polymerizable cationic gemini surfactant (surfmer). Here, cationic gemini surfmer (GS) was newly synthesized and characterized. Also, a “monomer”-type surfmer (MS) was synthesized and characterized for comparison. The equilibrium properties in water and in the presence of 0.1 M NaBr were investigated by means of surface ten...

2015
Abbul B. Khan Neeraj Dohare Rajan Patel

The mixed micellization of adiphenine hydrochloride (ADP) with 1-decyl-3-methylimidazolium chloride (C10mim.Cl), was investigated at different mole fractions and temperatures by surface tension measurements. The synergistic behavior (i.e., non-ideal behavior) for binary mixtures was explained by the deviation of critical micelle concentration (cmc) from ideal critical micelle concentration (cmc...

Journal: :Journal of molecular biology 2003
Peter J Bond Mark S P Sansom

The bacterial outer membrane protein OmpA is one of the few membrane proteins whose structure has been solved both by X-ray crystallography and by NMR. Crystals were obtained in the presence of detergent, and the NMR structure is of the protein in a detergent micelle. We have used 10 ns duration molecular dynamics simulations to compare the behaviour of OmpA in a detergent micelle and in a phos...

2015
Zhuoyang Fan Cheng Chen Xiaoying Pang Zhou Yu Yang Qi Xinyi Chen Huihui Liang Xiaoling Fang Xianyi Sha

Genexol-PM, produced by Samyang Company (Korea) is an excellent preparation of paclitaxel (PTX) for clinical cancer treatment. However, it cannot resolve the issue of multidrug resistance (MDR)-a significant problem in the administration of PTX to cancer patients. To increase the efficacy of Genexol-PM against MDR tumors, a mixed micelle capable of serving as a vehicle for PTX was developed, an...

Journal: :Nanotechnology 2008
S Krishnamoorthy Y Gerbig C Hibert R Pugin C Hinderling J Brugger H Heinzelmann

We demonstrate the use of copolymer micelle lithography using polystyrene-block-poly(2-vinylpyridine) reverse micelle thin films in their as-coated form to create nanopillars with tunable dimensions and spacing, on different substrates such as silicon, silicon oxide, silicon nitride and quartz. The promise of the approach as a versatile application oriented platform is highlighted by demonstrat...

2017
Anna Mozrzymas

The molecular connectivity indices were used to derive the simple model relating the critical micelle concentration of cationic (chloride) gemini surfactants to their structure. One index was selected as the best to describe the effect of the structure of investigated compounds on critical micelle concentration consistent with the experimental results. This index encodes the information about m...

Journal: :Biophysical chemistry 1991
T Odijk

The electrostatics of micellar growth is reviewed and extended for solutions containing excess salt. In dilute solution the expansion of a linear micelle with increasing salt concentration is explained for a wide range of ionic strength. When the micellar charge density is very high, counterions condense nonuniformly onto the micellar rod. In that case the micelle may contract upon the addition...

2014
Elizabeth G. Kelley Ryan P. Murphy Jonathan E. Seppala Thomas P. Smart Sarah D. Hann Millicent O. Sullivan Thomas H. Epps

The solution self-assembly of macromolecular amphiphiles offers an efficient, bottom-up strategy for producing well-defined nanocarriers, with applications ranging from drug delivery to nanoreactors. Typically, the generation of uniform nanocarrier architectures is controlled by processing methods that rely on cosolvent mixtures. These preparation strategies hinge on the assumption that macromo...

Journal: :Chemistry and physics of lipids 2012
Arunima Chaudhuri Sourav Haldar Amitabha Chattopadhyay

Structural transitions involving shape changes play an important role in cellular physiology. Such transition can be conveniently induced in charged micelles by increasing ionic strength of the medium. Shape changes have recently been shown to result in altered packing and lowering of micellar polarity. As a consequence of reduced polarity, the ionization states of micelle-bound molecules vary ...

2015
Hyo Jung Seo Sang Hwan Nam Hyung-Jun Im Ji-yong Park Ji Youn Lee Byeongjun Yoo Yun-Sang Lee Jae Min Jeong Taeghwan Hyeon Ji Who Kim Jae Sung Lee In-Jin Jang Joo-Youn Cho Do Won Hwang Yung Doug Suh Dong Soo Lee

In the field of nanomedicine, long term accumulation of nanoparticles (NPs) in the mononuclear phagocyte system (MPS) such as liver is the major hurdle in clinical translation. On the other hand, NPs could be excreted via hepatobiliary excretion pathway without overt tissue toxicity. Therefore, it is critical to develop NPs that show favorable excretion property. Herein, we demonstrated that mi...

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