About: http://webisa.webdatacommons.org/370431647

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	However, since QDs commonly contain Cd and other heavy metals, concerns have been raised regarding their toxicity.
http://www.w3.org/ns/prov#wasQuotedFrom	biomedsearch.com