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½ñÌì¹äAMµÄearly view·¢ÏÖµÄһƪÎÄÕ¡¶Graphene¨CGold Metasurface Architectures for Ultrasensitive Plasmonic Biosensing¡·£¬ÒòΪ֮ǰһֱÔÚ¹Ø×¢graphene¸úTMDC plasmonic sensorÕâ·½Ãæ£¬·¢Ïִ󲿷ֵÄÎÄÕ¶¼»ùÓÚ´¿ÀíÂÛ¼ÆËã»òÕßÖ»ÊǼòµ¥µÄproof of conceptûÓоßÌåµÄÓ¦Óã¬ÕâÆªÎÄÕÂÊÇ֮ǰ09Äê·¢¹ý¡¶Plasmonic nanorod metamaterials for biosensing¡·ÔÚNature MaterialsÉϵĴóÅ£Kabashin·¢±íµÄÓÐһƪÎÄÕ£¬Ö®Ç°¿´¹ýһЩ´ó·Ö×Ó̽²âµÄplasmonic sensorËäÈ»Ðû³ÆÊÇfetomolarÒ²¾ÍÊÇ10-15 M£¬µ«ÊÇ̽²âÑùÆ·µÄ·Ö×ÓÁ¿ÊµÔÚÊÇÌ«´óºÃ¼¸°Ù¸öKDA£¬ÒªÃ´¾Í±ØÐë¾¹ý¸´ÔӵĴ«¸ÐÆ÷±íÃæÐÞÊΣ¬ÕâÆªÎÄÕ¾¹ýһϵÁмÆËãÓÅ»¯×îºóʵÑéÑéÖ¤Á˾ÍËãÊǵ¥²ãgraphene coatedµÄAu thin film¶¼ÄÜÓÐЧÔöÇ¿´«¸ÐµÄÁéÃô¶È£¬label-freeÄÜ´ïµ½10-18 M»¹ÊÇ̽²âС·Ö×ÓDNAʵÊôÄѵã¬grapheneµÄÔöǿЧӦÓÐЧÃÖ²¹ÁËAu thin filmµÄÒ»²¿·Öloss, ¶øÇÒÎÄÖÐʹÓõÄphase detection·½·¨±È´«Í³µÄ²â·´Éä¹âµÄintensityÒª¸ß³öÈý¸öÊýÁ¿¼¶£¬ÕâÀï˳±ã°ÑÎÄÖеÄref1ºÍ2ÕÒµ½Ò»Æð·ÅÔÚÕâÀ﹩´ó¼Ò²Î¿¼¡£ Abstract Graphene¨Cgold metasurface architectures that can provide significant gains in plasmonic detection sensitivity for trace-amount target analytes are reported. Benefiting from extreme phase singularities of reflected light induced by strong plasmon-mediated energy confinements, the metasurface demonstrates a much-improved sensitivity to molecular bindings nearby and achieves an ultralow detection limit of 1 ¡Á 10−18 M for 7.3 kDa 24-mer single-stranded DNA. Keywords biosensorsÉúÎï´«¸ÐÆ÷; metasurfaces³¬²ÄÁϱíÃæ; plasmonic sensingµÈÀë×ÓÌå´«¸Ð; surface plasmon polaritons±íÃæµÈÀë×ÓÌ弤Ԫ ![]() ![]() ![]() [ Last edited by xiaoyangzihh on 2016-2-1 at 11:38 ] ; surface plasmon resonance±íÃæµÈÀë×ÓÌå¹²Õñ [ Last edited by xiaoyangzihh on 2016-2-1 at 11:43 ] |
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