<https://secure.gravatar.com/avatar/3cf88d8483a5fbf7514110ee3561293f?s=96&amp;d=mm&amp;r=g>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://journalsofindia.com/hydrogels-with-tunable-bacterial-activities/>