Sentence examples for metals has become from inspiring English sources

But high commodity prices mean that bioleaching of a variety of metals has become an attractive prospect in recent years.

Contamination of foods by heavy metals has become an inevitable challenge these days.

The contamination of the environment with toxic metals has become a worldwide problem.

Synthesis of noble metals has become mandatory issue in the present decade due to the abnormal increase of their market values[7].

Since several decades along with the growth of industrial activities, contamination of the environment with wastewaters including heavy metals has become a major problem[7].

While biosorption of heavy metals has become a popular environmentally driven research topic, it represents only one particular type of a concentration-removal aspect of the sorption process.

Once little known outside chemistry circles, rare earth metals have become increasingly vital to high-tech manufacturing.

By the time the bank resurrected the bullion for its customers, the precious metals had become even more precious, in a perverse free-market way.

Heavy metals have become concentrated in certain areas, such as traffic congested highways, emission areas and cement- and battery-waste polluted sites.

Heavy metals have become a global issue of environment and public health concern due to their toxicities, bioaccumulation in human body and food chain, carcinogenicities, and mutagenesis in various living organisms [ 2– 4].

Since the report of extraordinary optical transmission (EOT) in subwavelength hole arrays, nanohole arrays patterned in metals have become one of the most extensively studied plasmonic structures for fundamental optical physics as well as applications in spectroscopy, biosensing, and color filtering.