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This is it... graphene oxide.... tons of results on yahoo search add clues to covid puzzle.https://search.yahoo.com/search;_ylt=Awr9DtXLweRgZXcACKFXNyoA;_ylc=X1MDMjc2NjY3OQRfcgMyBGZyA3NmcARmcjIDc2ItdG9wBGdwcmlkA0xvcjB2cmVyUzQyeTZta2c5QkNweEEEbl9yc2x0AzAEbl9zdWdnAzEwBG9yaWdpbgNzZWFyY2gueWFob28uY29tBHBvcwMwBHBxc3RyAwRwcXN0cmwDMARxc3RybAMxNARxdWVyeQNncmFwaGVuZSUyMG94aWRlBHRfc3RtcAMxNjI1NjA0NTkw?p=graphene+oxide&fr2=sb-top&fr=sfp