The present study reports the use of raw, iron oxide, and aluminum oxide impregnated carbon nanotubes (CNTs) for the adsorption of hexavalent chromium (Cr(VI)) ions from aqueous solution. The raw CNTs were impregnated with 1% and 10% loadings (weight %) of iron oxide and aluminum oxide nanoparticles using wet impregnation technique. The synthesized materials were characterized using scanning el...

The origin and behavior of particles resulting from the spallation ablative thermal protection materials was investigated using an arc-jet wind tunnel. Particle tracking velocimetry used to track produced through by high-speed images that determine their trajectories once entering surrounding flow, which is post-shock region a Mach 5 free-stream. Analysis particle revealed dependence on flow co...

Effects of alfalfa-intercropping and nanosilver-impregnation were studied here on the specific gas permeability of 10-year old Populus nigra var. betulifolia. Specimens were impregnated with a 200 ppm aqueous dispersion of silver nanoparticles under 250 kPa pressure; the results were then compared with the un-impregnated specimens. The size range of silver nanoparticles was 10 to 80 nm. After t...

In this study, we investigated the color, gloss and surface roughness of bamboo (Phyllostachys bambusoides) and Scots pine (Pinus sylvestris) samples impregnated with boron and copper based preservatives during accelerated weathering from 168 h to 672 h. Tanalith-E, ACQ, wolmanit-CB were used as copper-based chemicals, while a mixture of boric acid and borax (7:3; w/w) was used as the boron com...

The present status of impregnated mosquito nets and other impregnated materials is discussed. Research projects which have produced most of the publications on this subject were conducted in areas in Africa with relatively high endemicity of malaria. In these areas, usage of impregnated mosquito nets caused substantial reductions in the sporozoite inoculation rates and some reduction in inciden...

OBJECTIVE To assess the efficacy of a chlorhexidine-impregnated dressing for prevention of central venous catheter-related colonization and catheter-related bloodstream infection using meta-analysis. DATA SOURCES Multiple computerized database searches supplemented by manual searches including relevant conference proceedings. STUDY SELECTION Randomized controlled trials evaluating the effic...

Purpose: To assess and compare the invivo antibacterial property of Miswak sticks and 0.5% Sodium Fluoride (NaF) impregnated Miswak sticks against Streptococcus mutans (S.mutans) and Lactobacillus. Materials and methods: A randomized controlled clinical trial (parallel group design) was conducted involving 20 subjects who were randomly allocated to Group A (0.5% NaF impregnated Miswak sticks) a...

BACKGROUND The economic impact of adding chlorhexidine gluconate (CHG)-impregnated sponge dressing to standard care (ie, chg-impregnated sponge dressing + skin preparation and transparent film dressing vs skin preparation and transparent film dressing) for the prevention of central-line infections was evaluated. METHODS Clinical and economic data were obtained from peer-reviewed published stu...

Pyrethroid resistance is becoming a major problem for vector control programs, because at present, there are few suitable chemical substitutes for pyrethroids, as when used on bed nets the insecticide must have low mammalian toxicity as well as high activity to mosquitoes. Pyriproxyfen (PPF) is one of the most active chemicals among the juvenile hormone mimic (JHM) group. Sterilizing mosquitoes...