ERA NanoSci - Directed and Autonomous Motion of Hybrid Magnetic Nano-objects

ERA NanoSci - 混合磁性纳米物体的定向和自主运动

• 批准号: 119766080
• 负责人: Professorin Dr. Annette M. Schmidt
• 金额: --
• 依托单位: Institut für Physikalische Chemie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2009
• 资助国家: 德国
• 起止时间: 2008-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/119766080?language=en
• 关键词: ERA; NanoSci; Directed; Autonomous; Motion

A key step in achieving interaction or exchange between nano-objects is the ability to bring them into spatial vicinity, e. g. by inducing directed individual or cooperative motion. We develop an approach making use of the interaction between asymmetrically decorated magnetic nanoparticles and an alternating magnetic field to induce translational movement of the nanoswimmers. While the propelling drive is mainly determined by the properties of the magnetic particle head and the magnetic field parameters, the conformation, helicity, and rigidity of the polymer chains that serve as flagella in the nano-object motion may be altered by e.g. ionic strength of the solvent (polyelectrolyte), temperature (LCST/UCST polymer) or pH (polyacid). Based on similar synthetic concepts, we expect to gain access to more sophisticated structures composed of these elementary units.

实现纳米物体之间相互作用或交换的关键步骤是使它们进入空间附近的能力，例如通过诱导定向的单个或合作运动。我们开发了一种方法，利用不对称修饰的磁性纳米颗粒和交变磁场之间的相互作用来诱导纳米游泳者的平移运动。虽然推进驱动主要由磁性颗粒头部的性质和磁场参数决定，但在纳米物体运动中作为鞭毛的聚合物链的构象、螺旋度和刚性可能受到溶剂（聚电解质）、温度（LCST/UCST聚合物）或pH（聚酸）等离子强度的改变。基于类似的综合概念，我们期望获得由这些基本单元组成的更复杂的结构。

项目成果

Improvement of the oxidation stability of cobalt nanoparticles

提高钴纳米颗粒的氧化稳定性

• DOI: 10.3762/bjnano.3.9
• 发表时间: 2012
• 期刊: Beilstein Journal of Nanotechnology
• 影响因子: 3.1
• 作者: C. Dobbrow;A. M. Schmidt
• 通讯作者: A. M. Schmidt