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9Â¥2016-09-20 10:46:23
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Typically, 0.3 g CTAB and 0.1 g PVP30 were added to a solution containing 90 mL of deionized water and 60 mL of methanol. The solution was adjusted to pH 10.2 by an ammonia solution, and then 600 ¦ÌL TEOS and 50 ¦ÌL APTES were added. After stirring for 2.5 h at room temperature, the resultant particles were separated and washed with ethanol and water. The extraction of organic templates for the as-synthesized particles was performed by dispersing these particles into 50 mL of a mixed solution of ethanol and NH4NO3 (0.3 g) at 60 ¡ãC for 1 h. The synthesis of FITC-labeled MSNs-NH2 is similar to that of the unlabeled ones, except that FITC-APTES (50 ¦ÌL) and APTES were added together during the condensation process. ²»¼ÓAPTES£¬±íÃæ¾ÍÊÇûÓÐÐÞÊΰ±»ùµÄ½é¿×¹è£¬Õâ¸ö·½·¨ÄãÊÔÊÔ£¬ËäÈ»²úÂʵ͵㣬µ«ÊÇ×ö³öÀ´µÄÊÇÇòÐεĽé¿×¹è£¬100¶ànm¡£ |
31Â¥2016-10-08 22:23:51
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3Â¥2016-09-18 15:25:02
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4Â¥2016-09-18 18:03:45
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5Â¥2016-09-19 08:31:52
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6Â¥2016-09-19 08:33:38
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7Â¥2016-09-19 09:02:35
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8Â¥2016-09-19 09:05:05
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10Â¥2016-09-20 10:49:21














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