نتایج جستجو برای: active caco3
تعداد نتایج: 442200 فیلتر نتایج به سال:
Herein, we report the development of a self-sensing and active corrosion protection coating which incorporates pH-sensitive multilayer chitosan/alginate-covered CaCO3 microcontainers containing 1,10-phenanthrolin-5-amine (APhen). The can respond to pH variation release APhen serves not only as indicator but also an inhibitor. An epoxy doped with 5 wt% exhibited improved performance was capable ...
Bacteriophages are promising therapeutic agents that can be applied to different stages of the commercial food chain. In this sense, bacteriophages can be orally administered to farm animals to protect them against intestinal pathogens. However, the low pH of the stomach, the activities of bile and intestinal tract enzymes limit the efficacy of the phages. This study demonstrates the utility of...
Although crucial to our understanding of skeletal evolution in marine invertebrates, the cost of calcification has remained elusive for a simple reason: CaCO3 is an inorganic material. Its cost thus derives solely from the metabolic expenses of accumulating, transporting, and precipitating CaCO3 and cannot normally be separated from other metabolic costs. Traditionally, calcification cost has b...
Ocean acidification and decreasing seawater saturation state with respect to calcium carbonate (CaCO3) minerals have raised concerns about the consequences to marine organisms that build CaCO3 structures. A large proportion of benthic marine calcifiers incorporate Mg into their skeletons (Mg-calcite), which, in general, reduces mineral stability. The relative vulnerability of some marine calcif...
To cite: Kilfoil RL, Shtofmakher G, Taylor G, et al. BMJ Case Rep Published online: [please include Day Month Year] doi:10.1136/bcr-2014206232 DESCRIPTION Posterior heel pain is a constellation of pathologies that may include retrocalcaneal bursitis, insertional tendonitis, paratenonitis and tendonosis among others. The diagnosis of insertional Achilles tendonitis can be established clinically ...
Phenol-formaldehyde (PF) resin is one of the most well-known adhesives for exterior use. PF adhesive commercial thermoset polymers that used extensively due to its many benefits. This study investigated influence different types and levels catalysts, i.e., NaOH CaCO3 at 1% 5% based on solids content properties, adhesion, cohesion strength resin. The results show catalyst type significantly infl...
Promising candidates for the development of universal nanoscale delivery systems are porous inorganic nanoparticles. Recently, the applications of porous silicon in a multistage delivery system, in polymer coated nanocarriers, and of porous silica as core material for lipid bilayers have attracted great attention. A system with similarly high potential, but less studied so far, is porous calciu...
The larval spicule matrix protein SM50 is the most abundant occluded matrix protein present in the mineralized larval sea urchin spicule. Recent evidence implicates SM50 in the stabilization of amorphous calcium carbonate (ACC). Here, we investigate the molecular interactions of SM50 and CaCO3 by investigating the function of three major domains of SM50 as small ubiquitin-like modifier (SUMO) f...
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