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yanggui

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[交流] 【交流】有没有谁做过DNA和AuNP的结合 已有2人参与

有没有谁做过DNA和AuNP的结合,看了一些文献但还是不怎么明白,想请教一下具体怎么操作的。文献上讲的是:Briefly, DNA-AuNPs were synthesized by incubating reporter probes (DNA 2 or 7, 3.0 íM) in 1 mL of 20 nm AuNPs solution (1.2 nM). After standing for 16 h, the DNA-AuNP conjugates were “aged” in salts (0.1 M NaCl, 10 mM
phosphate, pH 7.0) for 40 h. Excess reagents were removed by centrifuging at 15 000 rpm for 30 min. The red oily precipitate was washed, re-centrifuged, and then dispersed in 1 mL solution (10 mM phosphate buffer with 0.25 M NaCl, pH 7.0),但是我按1:1的配比将DNA和AuNP混合后,溶液的颜色还是蓝的(DNA溶液的颜色)。请问一下做过的同学具体怎么操作的。
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tiomer

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请问楼主,AuNP的结构是?哪里有卖啊?非常感谢!
2楼2013-10-23 16:42:47
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Liu19851225

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引用回帖:
2楼: Originally posted by tiomer at 2013-10-23 16:42:47
请问楼主,AuNP的结构是?哪里有卖啊?非常感谢!

可以自己合成
3楼2020-09-29 16:35:14
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