The microbial system like bacteria, fungi and yeast has the ability to convert metal ions to metallic nanoparticles [22, 23, 25, 26].
The possibility of chemically converting metal silicate nanostructures into new chemical entities offers many options for the synthesis of new functional materials.
Jodrell also met "Mimood Saib," an alchemist who claimed to convert metal into gold; he tried to convert the alchemist to his logic of science, but was obliged to leave him "obstinate in his Opinion".
There are enzyme oxidases and reductases to convert metal ions from more toxic species to less toxic species (Caccavo Jr et al. 1994, Cervantes et al. 2001, Lloyd and Lovley 2001, Kamaludeen et al. 2003).
Thus, in the electrolysis step, accumulated Pb2+ was desorbed in an acidic medium (0.3 0.5 M HCl or HNO3) and simultaneously electrolyzed by applying a negative potential (–0.9 V) for about 60 sec to convert metal ion (Pb2+) to elemental metal Pb.
This study assesses the technology to treat heavy metals from dredged sediments using phosphoric acid (The Novosol® Process, developed by Solvay) with the goal of converting metals, mainly Pb, Cd, Zn and Cu to insoluble metallic phosphates, and engineering properties (by calcination) of the final residues for the beneficial use.
Thus, ascorbate as a prooxidant is unlikely to convert metals to create ROS in vivo.
This finding was verified by computational analysis that showed that up to 99.9% of some metals were converted into metal oxides during the sintering process.
Characterization experiments showed that the process not only turned the biomass into biochar, but also converted the metal ions into metal oxyhydroxide nanoparticles onto the carbon surfaces with the biochar matrix.
Considering that many kinds of metal ions can be converted to metal ammonia complex, we can extend this method to prepare such highly dispersed SiO2-based nanocomposite, which might show good application properties for its specific morphology and structure.
