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yanggui金蟲 (小有名氣)
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[交流]
【交流】有沒有誰做過DNA和AuNP的結(jié)合 已有2人參與
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有沒有誰做過DNA和AuNP的結(jié)合,看了一些文獻(xiàn)但還是不怎么明白,想請(qǐng)教一下具體怎么操作的。文獻(xiàn)上講的是: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的配比將DNA和AuNP混合后,溶液的顏色還是藍(lán)的(DNA溶液的顏色)。請(qǐng)問一下做過的同學(xué)具體怎么操作的。 |
新蟲 (初入文壇)
金蟲 (小有名氣)
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