Diesel emissions have been found to contain cancer-causing compounds and are believed to worsen asthma conditions.
The dihalides RX2, where R = samarium, europium, and ytterbium, have been known for a long time, are stable compounds, and are easily prepared.
The dried rhizomes (fleshy underground stems) are used medicinally; they contain anticancer compounds and are the source for a treatment of genital warts.
However, some snakes have evolved immunity to these compounds and are thus able to prey upon adult dendrobatid frogs in their native habitats, and there are also anecdotal reports of predation by birds.
They exist in many forms — made of metals, semiconductors, insulators and organic compounds — and are being studied for use in electronics, energy conversion, optics and chemical sensing, among other fields.
Nonetheless, PBK models are usually designed for a single or a group of compounds and are considered demanding, with respect to experimental data needed for model parameterization.
Amphibian skin secretions are considered a rich source of biologically active compounds and are known to be rich in peptides, bufadienolides and alkaloids.
They are used as sweeteners and in making perfumes, are valuable intermediates in the synthesis of other compounds, and are among the most abundantly produced organic chemicals in industry.
Iron minerals also provide highly reactive surfaces for redox chemistry of inorganic and organic compounds and are involved in elemental cycling; other minerals (including clays, other metal oxides, zeolites) and silica gels or colloids8 can also be effective in concentrating reactants and products even in an aqueous system, including nucleobases and amino acids.
Nanogels are water soluble cross-linked polymer networks with nanometer size dimensions that can be designed to incorporate different types of compounds and are promising carrier systems for drugs and biological molecules.
Nitroreductases (NTR) are enzymes that reduce hazardous nitroaromatic compounds and are of special interest due to their potential use in bioremediation and their activation of prodrugs in directed anticancer therapies.
