Electrophoretic isolation of discrete Au nanocrystal/DNA conjugates

Electrophoretic isolation of discrete Au nanocrystal/DNA conjugates
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DOI:
10.1021/nl005508e
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发表时间:
2001-01-01
期刊:
影响因子:
10.8
通讯作者:
Alivisatos, AP
Alivisatos, AP
中科院分区:
材料科学1区
文献类型:
--
作者:
Zanchet, D;Micheel, CM;Alivisatos, AP

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胶体纳米晶体/DNA偶联物有望成为生物诊断的强大探针,以及纳米技术的通用构建块。为了充分实现这一潜力,精确控制与纳米晶体结合的寡核苷酸的数量是很重要的。在这里,我们展示了5和10纳米的金纳米晶体的电泳分离,其中包含离散的单链DNA(1-5)。讨论了这些离散共轭物在新型纳米结构制造中的潜在应用。
Colloidal nanocrysta/DNA conjugates hold the promise of becoming powerful probes for biological diagnostics as well as versatile building blocks for nanotechnology. To fully realize this potential, it is important to precisely control the number of oligonucleotides bound to the nanocrystal. Here we demonstrate electrophoretic isolation of 5 and 10 nm gold nanocrystals bearing discrete numbers of single-stranded DNA (1-5). The potential use of these discrete conjugates in the fabrication of novel nanostructures is discussed.