Confinement and surface effects provided by nanoparticles have been shown to produce changes in polymer molecules affecting their macroscopic viscosity. Nanoparticles may induce rearrangements in polymer conformation with an increase in free volume significantly lowering the viscosity. This phenomenon is generally attributed to the selective adsorption of the polymer high molar mass fraction on...

9 ABSTRACT: A coarse-grained (CG) model of poly(ethylene terephthalate) (PET) was developed and 10 implemented inCGmolecular dynamics (MD) simulations of PET chainswith degree of polymerization up to 11 50. TheCGpotential is parametrized to structural distribution functions obtained fromatomistic simulations 12 [ J. Phys. Chem. B 2010, 114, 786] using an inversion procedure based on theOrnstein...

Gemini surfactants and their interactions with proteins have gained considerable scientific interest, especially when amyloidogenic proteins are taken into account. In this work, the influence of two selected dicationic (gemini) surfactants (3,3'-[1,8-(2,7-dioxaoctane)]bis(1-dodecylimidazolium) chloride and 3,3'-[1,12-(2,11-dioxadodecane)]bis(1-dodecylimidazolium) chloride) on two model protein...

We study the interaction of ds-DNA molecules with freestanding and supported cationic lipid bilayers. DNA fragments of different lengths (5, 10, 20, and 48 kbp) were adsorbed on lipid membranes consiting mainly of zwitterionic DOPC with added fractions of cationic DOTAP (1...10 %). Freestanding bilayers were modeled using giant unilamellar vesicles of sizes >100 μm. Supported lipid bilayers wer...

nanopartmles have been used as an approach to improve the pharmacodynamic and phannacokinetie propertiesof various drues. amino acids have been considered to be useful to make such nano particles because ofthocompatithe and biodegradable characteristic. the quantum mechanical method that was chosen to analyze inethio hexa peptide nano ring]. the structure of some peptide nanorrigs as well as th...

the aim of this article is to extend the study of the lorentz transformation of order (m,n) from m=1 and n>=1 to all m,n>=1, obtaining algebraic structures called a bi-gyrogroup and a bi-gyrovector space. a bi-gyrogroup is a gyrogroup each gyration of which is a pair of a left gyration and a right gyration. a bi-gyrovector space is constructed from a bi-gyrocommutative bi-gyrogroup that admits ...