how could I determine whether the sample I’m collecting is real gold or Fool’s gold? I could begin answering this question by observing some physical properties of the sample I collect. A physical ...

Gold nanoparticles (AuNPs) are nanoscale particles of gold, typically ranging in size from 1 to 100 nanometers (nm). These nanoparticles exhibit unique physical, chemical, and optical properties that ...

Substantial outflows from the Bank of England’s gold vaults have prompted questions about whether the bank is running out of ...