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cccssszzz08: ½ð±Ò+45, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ÎÒÊÇľ³æÀ²£¡ºÙºÙ ½ð±Ò¸øÄã¡£¡£¡£ÎҺúÃÕå×Ãһϣ¬¿´¿´¾ßÌåÔõô¸Ä£¬·Ç³£¸Ðл 2013-04-30 22:40:53
cccssszzz08: ½ð±Ò+45, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ÎÒÊÇľ³æÀ²£¡ºÙºÙ ½ð±Ò¸øÄã¡£¡£¡£ÎҺúÃÕå×Ãһϣ¬¿´¿´¾ßÌåÔõô¸Ä£¬·Ç³£¸Ðл 2013-04-30 22:40:53
Ê×ÏÈÂ¥Ö÷¿ÉÒÔÉý¼¶ÎªÄ¾³æÁË![]() ÏÂÃæÊǸöÈËÐ޸ĵ쬽ö¹©Â¥Ö÷²Î¿¼ ͼX£¨A£©Îª¿Õ°×DNAÄ£°å£¨100 ng£©AFMÐÎòͼ£¬£¨B£©ÎªDNAÄ£°å£¨100 ng£©ÔÚ5mM ÂȽðËáÈÜÒºÖнþÅÝ30minºóµÄAFMÐÎòͼ£¬£¨C£©ÎªDNAÄ£°å£¨100 ng£©ÔÚŨ¶ÈΪ0.1% µÄÅðÇâ»¯ÄÆÈÜÒºÖнþÅÝ5minºóµÄAFMÐÎòͼ£¬£¨D£©ÎªDNAÄ£°å£¨100 ng£©ÔÚ5mM ÂȽðËáÈÜÒºÖнþÅÝ30min£¬ÓÃ0.1% µÄÅðÇâ»¯ÄÆÈÜÒº»¹Ô5minºóµÄAFMÐÎòͼ¡£ Figure X. (A) the AFM topography image of the DNA(100 ng) blank template, (B) the AFM topography image of the DNA(100 ng) template, which was soaked in the HAuCl4 solution for 30 min, (C) the AFM topography image of the DNA(100 ng) template, which was soaked in the 0.1% NaBH4 solution for 5 min, (D) the AFM topography image of the DNA(100 ng) template, which was soaked in the HAuCl4 solution for 30 min, and then reduced by 0.1% NaBH4 for 5 min. ͼXX²»Í¬Å¨¶ÈµÄDNAÄ£°åÉϺϳɽðÄÉÃ׿ÅÁ£µÄAFMÐÎòͼ¡£(A-C)DNAÄ£°åµÄŨ¶ÈÒÀ´ÎΪ50 ng£¬100 ngºÍ200 ng£¬(D)ΪDNAÄ£°å£¨100 ng£©ÉϺϳɽðÄÉÃ׿ÅÁ£µÄ´ó·¶Î§AFMÐÎòͼ¡£»¹Ôʱ¼ä¾ùΪ10min¡£ Figure XX. the AFM topography image of the Au nanoparticles synthesized on DNA templates of different concentrations. (A-C) The concentrations of DNA templates are 50 ng, 100 ng and 200 ng, respectively. (D) The large-scale AFM topography image of synthesized nanoparticles on DNA(100 ng) template. The reduction time of every sample is 10 min. ͼ XXX²»Í¬Å¨¶ÈµÄCT-DNAÎȶ¨µÄ½ðÄÉÃ׿ÅÁ£ÈÜÒºµÄ×ÏÍâ-¿É¼û¹âÆ×ͼ¡££¨a-c£©CT-DNAµÄŨ¶ÈÒÀ´ÎΪ10ng/¦ÌL£¨ÐéÏߣ©¡¢1.0 ng/¦ÌL£¨µãÐéÏߣ©¡¢0.1 ng/¦ÌL£¨ÊµÏߣ©£¬Í¼ÖвåͼΪ²»Í¬Å¨¶ÈCT-DNAÎȶ¨µÄ½ðÄÉÃ׿ÅÁ£ÈÜÒºµÄÕÕÆ¬£¬´ÓAµ½C CT-DNAŨ¶È·Ö±ðΪ10ng/¦ÌL¡¢1.0 ng/¦ÌL¡¢0.1 ng/¦ÌL¡£ Figure XXX. UV-vis spectra of Au nanoparticles solution, stabilized by the CT-DNA in different concentrations. (a-c) The concentrations of CT-DNA are 10ng/¦ÌL (dashed line)¡¢1.0 ng/¦ÌL (short dashed line)¡¢0.1 ng/¦ÌL£¨solid line)£¬respectively. The inset photographs shows the gold nanoparticles in the CT-DNA solution on different concentrations. From A to C the concentrations of CT-DNA are 10ng/¦ÌL¡¢1.0 ng/¦ÌL¡¢0.1 ng/¦ÌL, respectively. |
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