Fabrication of meta-material by programmable plating of DNA

通过 DNA 可编程电镀制造超材料

• 批准号: 22655059
• 负责人: IJIRO Kuniharu
• 金额: $ 2.25万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22655059/
• 关键词: DNA; 自己組織化; メッキ; メタマテリアル; 微細加工

Top-down processes, such as photolithography, have been approaching a limit with regard to the fabrication of fine structures. For the preparation of molecular-scale fine structures, it is important that conventional self-assembly methods should be adapted to a “programmable self-assembly” as a next-generation bottom-up system. We aim to fabricate nano-gap electrodes by sequence-selective metallization of template DNA. We have already reported the fabrication of sequence-selective platinum nano-wires using poly(guanine) and poly(adenine-thymine) diblock DNA, which is enzymatically polymerized as a template. That method, however, cannot be extended to the preparation of oligoblock DNA. In this study, we prepared triblock DNA sequences using guanine as a platinum-binding natural nucleotide and 7-deaza-guanine as a platinum-nonbinding unnatural nucleotide for the construction of platinum nano-wires with nano-gap structures.

自上而下的工艺（诸如光刻）已经接近关于精细结构的制造的极限。对于分子尺度精细结构的制备，重要的是，传统的自组装方法应该适应于作为下一代自下而上系统的“可编程自组装”。我们的目标是通过模板DNA的序列选择性金属化来制备纳米间隙电极。我们已经报道了使用聚（鸟嘌呤）和聚（腺嘌呤-胸腺嘧啶）二嵌段DNA，这是酶促聚合作为模板的序列选择性铂纳米线的制造。然而，该方法不能扩展到制备寡聚阻断DNA。在这项研究中，我们制备了三嵌段DNA序列，使用鸟嘌呤作为铂结合的天然核苷酸和7-deaza-guanine作为铂非结合的非天然核苷酸，用于构建具有纳米间隙结构的铂纳米线。

项目成果

DNA-Mediated Photoconversion of AgCl to Functinal Nanocrystals

DNA 介导的 AgCl 光转化为功能性纳米晶体

• 发表时间: 2011
• 作者: Guoqing Wang;Yasutaka Matsuo;Kenichi;Niikura;Kuniharu Ijiro
• 通讯作者: Kuniharu Ijiro

Artificial polymeric receptors on the cell surface promote the efficient cellular uptake of quantum dots

• DOI: 10.1039/c1ob05420a
• 发表时间: 2011-01-01
• 期刊: ORGANIC & BIOMOLECULAR CHEMISTRY
• 影响因子: 3.2
• 作者: Niikura, Kenichi;Nambara, Katsuyuki;Ijiro, Kuniharu
• 通讯作者: Ijiro, Kuniharu

Virus capsid coating of gold nanoparticles via cysteine-Au interactions and their effective cellular uptakes

通过半胱氨酸-Au相互作用对金纳米颗粒进行病毒衣壳涂层及其有效的细胞摄取

• DOI: 10.1246/cl.2012.113
• 发表时间: 2012
• 期刊: Chemistry Letters
• 影响因子: 1.6
• 作者: Keita Nagakawa;Keinchi Niikura;Tadaki Suzuki;Yasutaka Matsuo;Manabu Igarashi;Hirofumi Sawa;Kuniharu Ijiro
• 通讯作者: Kuniharu Ijiro

Fabrication of functional nanowires by DNA-mediated self-assembly

通过 DNA 介导的自组装制造功能性纳米线

• 发表时间: 2012
• 作者: 佐藤仁志;千葉順哉;河野隆英;松尾浩;井上将彦;K. Ijiro
• 通讯作者: K. Ijiro

ソフトナノテクノロジーにおける材料開発

软纳米技术的材料开发

• 发表时间: 2011
• 作者: Masanari Hirahara;et.al.;〓剣萍
• 通讯作者: 〓剣萍