Filters, coating

A similar system has been reported based on polycarbonate filters coated with hexadecane, also called hexadecane membranes (HDM) [124, 125]. Thus, this... 

Due to the focus of this work, other biological processes will also be mentioned. They include trickling filters, coating biological contactors, pond stabilization, anaerobic digestion, and biological nutrient removal.23 5... 

Huang et al. [66] removed 137caesium from 4 litre samples of seawater by adsorption onto a filter coated with copper (II) and then determined it by with 47% recovery by y-ray spectrometry. 

Other methods explored internally to alter the form of nicotine delivered included the use of base- or acid-coated filters. For example, researchers at RJR applied sodium hydroxide-coated filters to a cigarette yielding only 0.06 mg of nicotine in order to heighten sensory impact (Shannon et al. 1992). Alternately, a filter coated with an acid (lactic, levulinic, citric) was used to reduce the impact of a high nicotine sheet, either by trapping the nicotine or by changing the pH of the smoke so there is not as much lucotine in the vapor phase (Shannon et al. 1992). The researchers noted that ... 

TiOj coated fabric filters were prepared in a one-step process by the solvothermal method, and their properties were compared with those electrosprayed with Degussa P25. Filters coated with TiO nanoparticles prepared by the solvothermal method were superior to the commercial TiO powder in terms of particle size and homogeneity. A significant amount of bactericidal activity towards E. coli was successfully implanted into fabric filters by dip coating a solvothermally prepared TiO dispersion. 

Overlay the wells with a 5-pm polycarbonate filter coated with 0.2 % gelatin. 

Fig. 20.13 AFM images of alumina filters coated with Ag particles with (left) and without (right) chloride anions...

Muniz-Miranda M, Innocenti M (2004) AFM and micro-Raman investigation on filters coated with silver colloidal nanoparticles. Appl Surf Sci 226 125-130... 

No viruses were detected in 11 effluent samples from a 12-h run of a filter coated with 1 mg of cationic polymer per gram of diatomaceous earth. 

The slope of the clearance curve with the control insert (i.e., filter coated with collagen only, without endothelial cells) is denoted by PS(. 

MDCK cells form a polarized epithelium when grown on a porous membrane filter coated on one side with collagen and other components of the basal lamina. With the use of the special culture dish shown here, the medium on each side of the filter (apical and basal sides of the monolayer) can be experimentally manipulated and the movement of molecules across the layer monitored. Anchoring junctions and tight junctions form only if the growth medium contains sufficient Ca ". ... 

The parallel artificial membrane assay (PAMPA) was first described by Kansy et al. The assay consists in measuring the rate of transfer of compounds from a donor to an acceptor compartment that is separated by a porous filter coated with a mixture of phospholipids in dodecane. The exact nature of the membrane is not known and is unlikely to be a well-defined phospholipid bilayer. Interesting correlations between kinetics of transfer and fraction absorbed in humans were, however, observed. The technology was further improved by taking into account membrane retention and the derivation of differential equations to convert flux ratios into permeability values.The system is now available in the form of a commercial instrument (PSR evolution series, pION, Inc www.pion-inc.com). Improved correlations with GIT permeability were oteerved using different lipid compositions designed to closer mimic the nature of native membranes. ... 

APPLICATION OF ANTI-FILTERING COATINGS FOR LOCALISATION OF TOXIC WARFARE CHEMICALS IN THE BALTIC SEA AREA... 

Kim SS, Kim M, Lee J. Cellulose filter coated with m-aramid for water disinfection. J Appl Polym Sci 2013 129(6) 3454-8. 

Figure 1 EDX spectrum of different types of asbestos fibers (A) chrysotile (B) crocidolite (C) actinolite. The presence of an Au peak is the result of the sample preparation - filter coating with gold. The conditions of measurement SEM with EDX magnification, 2000-50000 x, acceleration voltage, 20-30kV.

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