The most important is plutonium-239 because it is fissionable, has a relatively long half-life (24,110 years), and can be readily produced in large quantities in breeder reactors by neutron irradiation of plentiful but nonfissile uranium-238.
Titanium cannot be obtained by the common method of reducing the oxide with carbon because a very stable carbide is readily produced, and, moreover, the metal is quite reactive toward oxygen and nitrogen at elevated temperatures.
Nevertheless, most, if not all, of the essential building blocks of proteins (amino acids), carbohydrates (sugars), and nucleic acids (nucleotide bases)—that is, the monomers can be readily produced under conditions thought to have prevailed on Earth in the Archean Eon.
Hydroxyl groups with uniform distribution are readily produced by ring-opening of O-heterocyclic units.
The resulting structures can be readily produced by using additive manufacturing (AM) techniques for medical applications.
Surprisingly, the different soot nanostructures are readily produced by using different fuels and pyrolysis conditions.
From a production perspective, these nanoparticles are easily obtained because they are readily produced in large industrial scales.
In addition, by further calcinating the RE hydroxides at high temperature in air, RE oxide nanorods could be readily produced.
Moreover, 99mTc-3PRGD2 can be readily produced in high yield and purity from a kit formulation [54, 55].
