自组装的三维手性胶体结构

上传 / 管理员 ·2017-11-12 化学,立体化学,DNA 纳米技术,胶体科学,自组装

论文标题 / Self-assembled three-dimensional chiral colloidal architecture

作者 / Matan Yah Ben Zion, Paul M. Chaikin, et al.

期刊 / Science

发表时间 / 2017-11-03

数字识别码 / 10.1126/science.aan5404

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【论文摘要】

Although stereochemistry has been a central focus of the molecular sciences since Pasteur, its province has previously been restricted to the nanometric scale. We have programmed the self-assembly of micron-sized colloidal clusters with structural information stemming from a nanometric arrangement. This was done by combining DNA nanotechnology with colloidal science. Using the functional flexibility of DNA origami in conjunction with the structural rigidity of colloidal particles, we demonstrate the parallel self-assembly of three-dimensional microconstructs, evincing highly specific geometry that includes control over position, dihedral angles, and cluster chirality.

 

科研圈

(导读 魏甜甜)尽管立体化学处于分子科学的研究中心,但它的研究领域先前一直被限制在纳米尺度。本研究通过结合 DNA 纳米技术和胶体科学实现了微米级胶体团簇的自组装。利用 DNA 弯折的功能弹性与胶粒的结构刚性,作者展示了三维微构造的平行自组装,并显示出其高度具体的几何结构,包括控制位置、二面角和团簇手性。

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