Preparation, heat-enabled shape variation, and cargo manipulation of polymer-based micromotors

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• 作者：Limei Liu ; Mei Liu ; Yonggang Dong ; Wei Zhou ; Lina Zhang…
• 刊名：Journal of Materials Science
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：51
• 期：3
• 页码：1496-1503
• 全文大小：1,174 KB
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• 作者单位：Limei Liu (1)
  Mei Liu (1)
  Yonggang Dong (1)
  Wei Zhou (1)
  Lina Zhang (1)
  Yajun Su (1)
  Hui Zhang (1)
  Bin Dong (1)
  
  1. Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices and Collaborative Innovation Center (CIC) of Suzhou Nano Science and Technology, Soochow University, Suzhou, 215123, Jiangsu, People’s Republic of China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Materials Science
  Characterization and Evaluation Materials
  Polymer Sciences
  Continuum Mechanics and Mechanics of Materials
  Crystallography
  Mechanics
  
• 出版者：Springer Netherlands
• ISSN：1573-4803

文摘

In this paper, we report the facile fabrication of a sheet-like polymer-based micromotor through the combination of spin coating, self-assembly, and sonication techniques. By carefully adjusting the construction conditions, such as the solution concentration, spin coating speed, and the sonication time, the size of the resulting micromotor can be finely tuned. The utilization of the polymeric materials inside a micromotor brings several advantages, such as the thermal property and the encapsulation of functional materials. As a consequence, the resulting micromotors can not only undergo shape variation from sheets to spheres at an elevated temperature but also exhibit the magnetic response based on the encapsulated magnetic nanoparticles. Furthermore, by combining these two different properties, a new strategy to realize the controlled cargo capture, transport and release based on the polymer’s softening property is proposed in this work. The low cost, easy processing, and versatile functions make current micromotor, an attractive candidate for practical applications, such as targeted drug delivery.