首页> 外文期刊>Nanotechnology >A measurement of the maximal forces in plasmonic tweezers
【24h】

A measurement of the maximal forces in plasmonic tweezers

机译:等离子体镊子中最大力的测量

获取原文
获取原文并翻译 | 示例
       

摘要

Plasmonic tweezers that are designed to trap nanoscale objects create many new possibilities for single-molecule targeted studies. Numerous novel designs of plasmonic nanostructures are proposed in order to attain stronger forces and weaker laser intensity. Most experiments have consisted only of immobilization observations-that is, particles stick when the laser is turned on and fall away when the laser is turned off. Studies of the exertable forces were only theoretical. A few studies have experimentally measured trap stiffness. However, as far as we know, no studies have addressed maximal forces. In this paper, we present a new experimental design in which the motion of the trapped particle can be monitored in either parallel or orthogonal directions to the plasmonic structure's symmetric axis. We measured maximal trapping force through such monitoring. Although stiffness would be useful for force-calibration or immobilization purposes, for which most plasmonic tweezers are used, we believe that the maximal endurable force is significant and thus, this paper presents this aspect.
机译:被设计用来捕获纳米级物体的等离子镊子为单分子靶向研究创造了许多新的可能性。为了获得更强的力和更弱的激光强度,提出了许多新颖的等离激元纳米结构设计。大多数实验仅由固定观察组成,也就是说,当激光打开时,颗粒会粘住,而当激光关闭时,颗粒会掉落。对作用力的研究只是理论上的。一些研究已经通过实验测量了陷阱的刚度。但是,据我们所知,没有研究涉及最大力量。在本文中,我们提出了一种新的实验设计,其中可以在与等离子体激元结构的对称轴平行或正交的方向上监视被捕获粒子的运动。通过这种监测,我们测量了最大的诱集力。尽管刚度将用于大多数的等离子镊子用于力校准或固定目的,但我们认为最大的持久力很重要,因此,本文介绍了这一方面。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号