نتایج جستجو برای: hydrophobic and hydrophilic interactions

تعداد نتایج: 16872820  

Journal: :Food Chemistry 2021

The novel core–shell microparticles were fabricated to deliver curcumin by using hydrophobic zein as the core and hydrophilic cellulose nanocrystals (CNCs) shell. Different concentrations (0.10–1.50%, w/v) of CNCs utilized regulate microstructure, physicochemical stability, in vitro digestion microparticles. size ranged from 1017.3 3663.7 nm. Electrostatic attraction interactions responsible fo...

Phenolic acids constitute a major group of pollutants which are recalcitrant to common biological treatment. In this study synthetic wastewater containing a mixture of p-coumaric and p-hydroxybenzoic acids was evaluated for photo-Fenton pretreatment. The changes in biodegradability (ratio of biochemical oxygen demand to total organic carbon (TOC)) and mineralization (TOC removal) were monitored...

2004
Douglas J. Gardner Tim G. Rials

D. J. Gardner Department of Forest Management and Advanced Engineered Wood Composites Center, University of Maine, Orono, ME 04469, USA Abstract The combination of synthetic thermoplastic polymers and wood is normally problematic because wood surfaces are hydrophilic while typical thermoplastic polymers are hydrophobic. A possible solution is to use block copolymer coupling agents. In this work...

Journal: :Colloids and interfaces 2023

Coarse-grained molecular dynamics simulations that incorporate explicit water-mediated hydrophilic/hydrophobic interactions are employed to track spatiotemporal evolution of diblock copolymer aggregation in initially homogeneous solutions. A phase portrait the observed morphologies and their quantitative geometric features such as numbers, packing parameters, radial distribution functions solve...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1392

tourism , today as one of the ways to make money, create jobs , and social and political interactions is considered. this paper aims to examine the strengths and weaknesses of tourism development in mahmoud abad ( mazandaran ). the research method in this study is " descriptive - analytical " and to collection of data used field methods such as questionnaires and documentation - library. the sa...

Journal: :Physical review letters 2015
Rongzheng Wan Chunlei Wang Xiaoling Lei Guoquan Zhou Haiping Fang

Using molecular dynamics simulations, we show that the evaporation of nanoscale water on hydrophobic-hydrophilic patterned surfaces is unexpectedly faster than that on any surfaces with uniform wettability. The key to this phenomenon is that, on the patterned surface, the evaporation rate from the hydrophilic region only slightly decreases due to the correspondingly increased water thickness; m...

Journal: :polyolefins journal 0
milad fonouni faculty of chemical engineering, sahand university of technology, tabriz, iran reza yegani faculty of chemical engineering, sahand university of technology, tabriz, iran sattar anarjani faculty of chemical engineering, sahand university of technology, tabriz, iran akram tavakoli faculty of chemical engineering, sahand university of technology, tabriz, iran

an essential characteristic for high performance inherently hydrophobic membranes such as microporous high density polyethylene (hdpe) membranes is to have a hydrophilic surface. in this project, wet chemical functionalization as a facile and effective method was developed to give a hydrophilic property to hdpe membranes using polar functional groups. kclo3, k2cr2o7 and kmno4 were selected as o...

Journal: :Biochemical Society transactions 1993
I D Kerr M S Sansom

Bacteriorhodo sin is an integral membrane light-driven proton pump from ~aLbucter ium ~ o b i u m . It consists of seven transmembrane helices, surrounding a central proton translocation channel, in a 1:l complex with a retinal chromophore. The structure of the transmembrane helices has been resolved by high-resolution electron cryo-microscopy [ 11. We have investigated the amphipathic nature o...

Journal: :Organic letters 2004
Eui-Hyun Ryu Yan Zhao

[structure: see text] When four facially amphiphilic cholate derivatives are attached to a tetraaminocalixarene scaffold, the resulting molecule responds to environmental changes by rotation of the cholate units. In polar solvents, the molecule adopts a micellelike conformation with the hydrophilic alpha-faces of the cholates pointing outward. In nonpolar solvents, it turns inside out, assuming...

Journal: :Angewandte Chemie 2023

The CeO2 (100) surface, despite its strongly hydrophilic nature, exhibits hydrophobic behaviour when immersed in water. This effect is induced by the first water layer that immediate contact with hydroxylated surface. ordered creates a key-lock H-bond pattern underlying surface hydroxyl groups, hindering interactions liquid hydrophobicity manifested measurable angle and considerable diffusion e...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید