公开(公告)号：US20150081228A1

公开(公告)日：2015-03-19

申请号：US14390034

申请日：2013-03-28

Applicant: UNIVERSITAT ZURICH

Inventor： Madhavi Krishnan

IPC: G01N15/10 ,  G01N15/02 ,  G01N25/00

CPC classification number: G01N15/10 ,  B82Y35/00 ,  G01N15/0211 ,  G01N15/0266 ,  G01N15/1031 ,  G01N15/1463 ,  G01N25/00 ,  G01N2015/0038 ,  G01N2015/1075 ,  G01N2015/1087

Abstract: In a method for determining charge and/or size of an object (15) suspended in a fluid, the object (15) is introduced, together with the fluid, into an electrostatic trap (1) defining an electrostatic confining potential. The thermal motion of the object (15) in the fluid is observed under influence of the confining potential, and charge and/or size are determined from the observed thermal motion. In particular, the viscous drag on the object yields a measure of its size, while the stiffness of its confinement can be compared with a potential model to reveal the total charge it carries. Also disclosed are an apparatus and software for carrying out the method.

Abstract translation: 在用于确定悬浮在流体中的物体（15）的电荷和/或尺寸的方法中，将物体（15）与流体一起引入限定静电限制电位的静电捕获器（1）中。 在限制电位的影响下观察流体中物体（15）的热运动，并根据观察到的热运动确定电荷和/或尺寸。 特别地，物体上的粘性阻力产生其尺寸的度量，而其约束的刚度可以与潜在的模型进行比较，以显示其承载的总电荷。 还公开了用于执行该方法的装置和软件。

公开(公告)号：US09958374B2

公开(公告)日：2018-05-01

申请号：US14390034

申请日：2013-03-28

Applicant: UNIVERSITAT ZURICH

Inventor： Madhavi Krishnan

IPC: G01N15/00 ,  G01N15/02 ,  G01N25/00 ,  G01N15/14 ,  B82Y35/00 ,  G01N15/10

CPC classification number: G01N15/10 ,  B82Y35/00 ,  G01N15/0211 ,  G01N15/0266 ,  G01N15/1031 ,  G01N15/1463 ,  G01N25/00 ,  G01N2015/0038 ,  G01N2015/1075 ,  G01N2015/1087

Abstract: In a method for determining charge and/or size of an object (15) suspended in a fluid, the object (15) is introduced, together with the fluid, into an electrostatic trap (1) defining an electrostatic confining potential. The thermal motion of the object (15) in the fluid is observed under influence of the confining potential, and charge and/or size are determined from the observed thermal motion. In particular, the viscous drag on the object yields a measure of its size, while the stiffness of its confinement can be compared with a potential model to reveal the total charge it carries. Also disclosed are an apparatus and software for carrying out the method.

公开(公告)号：US20150212316A1

公开(公告)日：2015-07-30

申请号：US14424445

申请日：2013-08-29

Applicant: UNIVERSITAT ZURICH

Inventor： Madhavi Krishnan ,  Michele Celebrano

IPC: G02B26/02 ,  G02B1/00

CPC classification number: G02B26/02 ,  B82Y20/00 ,  G02B1/005 ,  G02B26/026 ,  Y10S977/774 ,  Y10S977/932

Abstract: The invention relates to a device for orienting at least one object in at least a first or a second orientation or for placing it in a first or a second spatial location, comprising: a substrate (10) having a surface (10a), at least one object (3) levitated above said surface (10a),wherein the device (1) is designed to generate an e.g. electrostatic potential with help of the substrate (10) for trapping the at least one object (3), the potential having at least a first minimum and a second minimum, so that the at least one object (3) is oriented in the first orientation (or located in a first spatial location) when being trapped in the first minimum, and in the second orientation (or located in the second spatial location) when being trapped in the second minimum, and wherein said at least one object (3) is trapped in one of said minima.

Abstract translation: 本发明涉及一种用于以至少第一或第二取向定向至少一个物体或用于将其放置在第一或第二空间位置中的装置，包括：至少具有表面（10a）的基底（10） 悬浮在所述表面（10a）上方的一个物体（3），其中所述装置（1）被设计成产生例如 用于捕获所述至少一个物体（3）的所述衬底（10）的帮助下的静电电位，所述电位具有至少第一最小值和第二最小值，使得所述至少一个物体（3）在所述第一取向 （或位于第一空间位置）当被捕获在第二最小值中时，并且在被捕获在第二最小值中时处于第二方向（或位于第二空间位置中），并且其中所述至少一个对象（3）是 被困在最小的一个中。