About: http://webisa.webdatacommons.org/174456552

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If the COINs have already been coated with a metallic layer, such as for example, gold, a silica layer can be attached to the gold layer by vitreophilization of the COINs with, for example, 3-aminopropyltrimethoxysilane (APTMS).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com