Two chemical approaches, Tenax extraction and matrix solid-phase microextraction (matrix-SPME), were compared to assess the bioavailability of hydrophobic contaminants from sediment. Hexachlorobiphenyl, DDE, permethrin, chlorpyrifos, and phenanthrene were individually spiked into two sediments differing in physical characteristics. Bioaccumulation was determined by exposing the oligochaete, Lum...

Front Cover: In article number 2100383, Ana-Maria Resmerita and co-workers show that incorporation of 5 wt% polystyrene/hydroxypropyl-β-cyclodextrins (HPβCD) semi-rotaxane into a polyethylene glycol/HPβCD crosslinked matrix leads to hydrophobic porous film with enhanced swelling ability thermal dielectric properties as compared those the pure material.

pluronic/bile salt/phospholipid mixed micelles (pluronic/bs/ps-mm) drug carrier system for solubilization hydrophobic drugs was developed. a typical hydrophobic compound, pyrene, was selected as a representative hydrophobic compound to model the hydrophobic drugs. five pluronics, f68, f88, f98, f108, and f127 with different ppo chain length were studied. cmc data and solubilization capacities w...

PURPOSE To determine the hydrophobic, antiglistening, and bioadhesiveness properties of a new polymer, GF raw material, and to determine the suitability of this material for use in intraocular lenses (IOLs). SETTING University of Liege, Liege, Belgium. DESIGN Experimental study. METHODS Intraocular lenses made of the new hydrophobic acrylic material were tested and compared with reference...

The basic matrix of cellular membranes consists a double layer (bilayer) phospholipids. Semisynthetic lipid bilayers are commonly used in biophysical studies membranes. According to temperature and composition, can exist liquid-crystalline (or liquid-disordered), liquid-ordered, rippled, gel phases. In the present study, hydrophobic, solvatochromic molecule Nile red has been as fluorescent prob...

A novel oxygen selective highly hydrophobic membrane is prepared by non-solvent induced phase separation in which a dextrin-based nanosponge is incorporated into a poly(vinylidene fluoride co-hexafluoropropylene) (PVDF-HFP) matrix. The membrane presents high capability to entrap moisture from air as well as good hydrophobic behaviour. The membrane was assembled in a pouch type Li-air cell, whic...

Potassium chloride (KCl) is a highly water soluble substance which is usually used to prevent hypokalemia. Oil in water disperse phase encapsulation method was used to prepare KCl loaded microcapsules using beeswax and carnauba wax as a hydrophobic matrix. The morphology and characteristics of KCl loaded microspheres were studied using scanning electron microscopy (SEM), photon correlation spec...

Single atomic monolayer (SAM) technology will be used to design an air bubble array for the lubrication of MEMS devices with sliding and rotating parts. Patterning a matrix of hydrophobic patches on a hydrophilic substrate will result in an array of air bubbles formed by the repulsive behavior of water molecules with the hydrophobic surfaces. The performance of the air bubble array will be dete...