Absorption coating effects

Biruss B, Valenta C (2006) Skin permeation of different steroid hormones from polymeric coated liposomal formulations. Eur J Pharm Biopharm 62 210-219 Brochard G, Luessen HL, Verhoef JC, Lehr CM, de Boer AG, Junginger HE (1996) The potential of mucoadhesive polymers in enhancing intestinal peptide drug absorption III Effects of chitosan-glutamate and carbomer on epithelial tight junctions in vitro. J Control Rel 39 131-138... 

Some of the new lower wattage lamps may also be coated for safety purposes with clear plastic which may be absorptive and effect results. One of the problems with using bare fluorescent lamps is that they do not filter out all incident UV radiation used to make the phosphor fluoresce. These lamps are made with the... 

High enhancement of the copper localized surface plasmon absorbency was recorded at the two-layer planar system consisted of copper and silver nanoparticles prepared with successive vacuum evaporation. The result obtained may be caused by strong near-field coupling in the close-packed binary system. The effect may be used for the development of high-absorptive coatings and spectral selective nanoelements in the visible and near infrared spectral ranges. 

E. Fuseau, O. Petricoul, A. Sabin, A. Pereira, S. O Quinn, S. Thein, M. Leibowitz, Li. Purdon, S. McNeal, R. Salonen, A. Metz, and P. Coates, Effect of encapsulation on absorption of sumatriptan tablets data from healthy volunteers and patients during a migraine. Clin Ther 23 242-251 (2001). 

Moisture. Absorbed and retained moisture, especially as ice, has a significant effect on the stmctural and thermal properties of insulation materials. Most closed-ceU plastic foams have low permeance properties most notably where natural or bonded low permeance surface skins exist (29,30). Design, building, and constmction practices requite adequate vapor retarders, skins, coatings, sealants, etc, in order to prevent the presence of moisture. However, moisture vapor cannot be completely excluded, thus the possibiUty of moisture absorption and retention is always present. The freezing of moisture and mpturing of cells result in permanent reduction of thermal and stmctural performance. 

When dark roofs are heated by the sun, they directly raise summertime building cooling demand. For highly absorptive (low-albedo) roofs, the surface/ambient air temperature difference may be 50°C (90°F), while for less absorptive (high-albedo) surfaces with similar insu-lative properties (e.g., white-coated roofs), the difference is only about 10°C (18 F), which means that cool surfaces can effectively reduce cooling-energy use. 

The electrical resistance of a coating on a pipeline will depend upon the effectiveness of its initial application to the metal and on its condition at the time of testing absorption of moisture may decrease the resistance by as little as 10% during a 2y-year period. The leakage resistance of a given section of pipeline can be determined by the following procedure ... 

The most important uses for phosphate coatings entail sealing with oil or paint and it is therefore of interest to study absorption values. Table 15.9 compares the absorption of diacetone alcohol into coatings of widely differing thicknesses and composition despite these differences, values of 10-8-12-9g/m are obtained throughout. It is therefore evident that absorption is predominantly a surface effect and not appreciably influenced by coating thickness. 

Oral administration of bicarbonate may decrease the absorption of ketoconazole. Increased blood levels of quinidine, flecainide, or sympatiiomimetics may occur when these agents are administered with bicarbonate There is an increased risk of crystalluria when bicarbonate is administered with the fluoroquinolones. Fbssible decreased effects of lithium, methotrexate, chlorpropamide, salicylates, and tetracyclines may occur when these drag s are administered with sodium bicarbonate. Sodium bicarbonate is not administered within 2 hours of enteric-coated drugs the protective enteric coating may disintegrate before the drug reaches the intestine. 

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