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US 10,013,647 B2Granted
Method for magnetically controlling a magnetic structure
AssigneeQuantamatrix Inc.
InventorsSunghoon Kwon, Howon Lee, Junhoi Kim, Ji Yun Kim
Life of this patent
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Abstract
Provided is a method of magnetically controlling a magnetic structure, the method including: providing a solution containing magnetic structures, each including a magnetic axis in which magnetic nanoparticles are arranged; and controlling movements of the magnetic structures by applying an external magnetic field to the solution.
Claims8
A method of magnetically controlling a magnetic structure, the method comprising:
- providing a magnetic structure including a solid matrix having a first region and a second region directly connected to the first region via a connecting region, each of the first and the second regions including magnetic axes,
- wherein each of the magnetic axes includes magnetic nanoparticles arranged along an axial direction in a linear line with a predetermined interval therebetween and fixed in each region, and
- wherein the connecting region is bent between the first and the second regions when an external magnetic field is applied to allow the first and the second regions to move in different directions by the applied external magnetic field;
- and
- controlling movements of the magnetic structure by i) applying an external magnetic field to the magnetic structure and ii) changing a direction of the applied external magnetic field, such that the first and the second regions in the magnetic structure move in different directions from each other and the connecting region is bent.
2 more elements
A method of magnetically controlling and analyzing a magnetic structure, the method comprising:
- introducing into a container a solution containing a color-coded magnetic structure having a flat plate, the color-coded magnetic structure including code regions formed on a flat surface of the color-coded magnetic structure, each code region including magnetic axes oriented in a thickness direction of the color-coded magnetic structure which is perpendicular to the flat surface, each magnetic axis including magnetic nanoparticles arranged in an axial direction with predetermined intervals therebetween and fixed in each code region, the code regions manifesting structural colors due to light diffraction in accordance with the intervals between the magnetic nanoparticles arranged in each code region;
- controlling movements of the color-coded magnetic structure in the container by applying an external magnetic field to the solution from an outside of the container, the external magnetic field enabling the color-coded magnetic structure to rotate by creating a magnetic torque to the color-coded magnetic structure and to move translationally by creating a force applied in a direction in which a density of the external magnetic force becomes dense;
- collecting the color-coded magnetic structure in the solution on a wall surface of the container by applying an external magnetic field to the solution such that the flat surface of the color-coded magnetic structure contained in the solution is dragged toward the wall surface of the container and the code regions manifesting structural colors are displayed to an outside of the container through the wall surface of the container;
- and
- reading information of the code regions by using a camera focusing the wall surface of the container.
2 more elements
Dependencies are inferred from the claim text.