In this review we report the most recent applications of nanotechnology to the conservation
and restoration of the world's cultural heritage. Nanoparticles of humble calcium and …

Ureases are enzymes highly desirable in immobilized form for a number of applications that
exploit urea cleavage and an increase in pH, inherent to the reaction. Major among them are …

Catalytic decomposition of urea by urease in aqueous calcium chloride solutions was used
to rapidly prepare calcium carbonate polymorphs at room temperature. The nature of the …

Catalytic decomposition of urea by enzyme urease in aqueous strontium and barium
chloride solutions was used to rapidly precipitate witherite (BaCO3) and strontianite (SrCO3) …

In the presence of polyethylene glycol (PEG), bimodal mesoporous nanorod γ-Al2O3 was
successfully synthesized via hydrothermal method. The pore structure, crystal parameters …

The influence of the primary structures of plant (Canavalia ensiformis) and bacterial (Bacillus
pasteurii) ureases on the precipitation of calcium carbonate polymorphs in solutions of …

Well-dispersed spherical amorphous alumina nanoparticles with a narrow size distribution
were obtained by facile homogeneous precipitation and subsequent calcination. In the …

Ultrafine spherical boehmite (AlOOH) particles were prepared from aluminum sulfate and
aluminum chloride solution with urea as precipitant at 90° C. It was observed that mixed …

The size-controlled γ-Al 2 O 3 nanoparticles were prepared via a homogeneous
precipitation method. The results showed that the size-controlled and approximately …

Al 2 O 3 nanorods with mesoporous structures are successfully synthesized from a
hydrothermal and thermal decomposition process via the ammonium aluminum carbonate …