Method for producing gold nanoparticles in plants and gold nanoparticles produced
AssigneeUniversidad de Santiago de Chile
InventorsAntonio Castillo, Luis Cottet, Yanara Jaña
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Abstract
The present invention relates to the field of nanotechnology, more specifically to the production of gold nanoparticles (AuNPs) from plant extracts derived from leaves, stems, seeds, flowers, fruits or latex from plant species such as Colliguaja salicifolia, Pittosporum Undulatum, Acca sellowiana, Ugni molinae and Colliguaja integerrima, in which naturally occurring biocatalysts are possessed by these plants. The invention also relates to the gold nanoparticles obtained from said plants as well as to said natural biocatalysts.
Claims16
Method to obtain gold nanoparticles from plants, said method comprised the steps of:
- a) obtaining an extract from the plant;
- b) heating said extract;
- c) eliminating the insoluble material from said extract;
- d) mixing under appropriate conditions the extract soluble material with a substrate comprising a gold salt;
- and
- e) Recovering the gold nanoparticles from said mixture.
Gold nanoparticles obtained from Colliguaja salicifolia, Acca sellowiana, Pittosporum undulatum, Ugni molinae, or Colliguaja integerrima.
A biocatalyst for obtaining gold nanoparticles from plants selected from the group consisting of phenolic compounds triterpenoids, sesquiterpene glucosides, monoterpenes, diterpenes, alkanes, and vitamin C.
Dependencies are inferred from the claim text.