Sorting of molecular shuttles by designing electrical and mechanical properties of microtubules
Sorting of molecular shuttles by designing electrical and mechanical properties of microtubules
复制标题
通过设计微管的电学和机械特性对分子梭进行分类
DOI:
10.1101/107458
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
Ryuji Yokokawa
中科院分区:
文献类型:
--
作者:
Naoto Isozaki;Hirofumi Shintaku;Hidetoshi Kotera;Taviare L. Hawkins;Jennifer L. Ross;Ryuji Yokokawa
Kinesin-driven microtubules have been focused on to serve as molecular transporters, called “molecular shuttles,” to replace micro/nanoscale molecular manipulations necessitated in micro total analysis systems. Although transport, concentration, and detection of target molecules have been demonstrated, controllability of the transport directions is still a major challenge. Toward broad applications of molecular shuttles by defining multiple moving directions for selective molecular transport, we integrated a bottom-up molecular design of microtubules and a top-down design of a microfluidic device. The surface charge density and stiffness of microtubules were controlled, allowing us to create three different types of microtubules, each with different gliding directions corresponding to their electrical and mechanical properties. The measured curvature of the gliding microtubules enabled us to optimize the size and design of the device for molecular sorting in a top-down approach. The integrated bottom-up and top-down design achieved separation of stiff microtubules from negatively charged, soft microtubules under an electric field. Our method guides multiple microtubules by integrating molecular control and microfluidic device design; it is not only limited to molecular sorters but is also applicable to various molecular shuttles with the high controllability in their movement directions.
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影响因子:
3.9
作者:
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通讯作者:
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DOI:
--
发表时间:
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期刊:
Biophysical Chemistry 116
影响因子:
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