System and method for precision transport, positioning, and assembling of longitudinal nano-structures
a nano-structure and longitudinal technology, applied in the direction of electrostatic separators, diaphragms, electrolysis, etc., can solve the problems of inability to control direction, velocity, or t rajectory without extremely complicated electronic design and computer programming
Active Publication Date: 2012-08-30
THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE
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Benefits of technology
This approach allows for efficient and precise manipulation of nano-structures, enabling the assembly of complex nano-devices like nano-motors and oscillators, with nano-wires being aligned and moved with high speed and accuracy, overcoming the limitations of previous methods by controlling orientation and trajectory with high precision.
Problems solved by technology
Because the magnetic force is a weak force, it is difficult to induce any motion on nano-wires.
The efficiency, however, is quite low because only several nano-wires can be manipulated at a time.
However, the direction, velocity, or t rajectory cannot be controlled without extremely complicated electronic design and computer programming.
Method used
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[0033]Some embodiments of the current invention are discussed in detail below. In describing embodiments, specific terminology is employed for the sake of clarity. However, the invention is not intended to be limited to the specific terminology so selected. A person skilled in the relevant art will recognize that other equivalent components can be employed and other methods developed without departing from the broad concepts of the current invention. All references cited herein are incorporated by reference as if each had been individually incorporated.
[0034]FIG. 1A shows a system for transporting, positioning, and assembling nano- structures according to some embodiments of the invention. The term nano-structure is intended to structures that have at least one dimension that is smaller than 1 μm. This includes structures in which all dimensions are less than 100 nm, but it is not limited to only such structures. In some embodiments, the nano-structures may have a longitudinal dimen...
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Abstract
A method for assembling multi-component nano-structures that includes dispersing a plurality of nano-structures in a fluid medium, and applying an electric field having an alternating current (AC) component and a direct current (DC) component to the fluid medium containing the plurality of nano-structures. The electric field causes a first nano-structure from the plurality of nano-structures to move to a predetermined position and orientation relative to a second nano-structure of the plurality of nano-structures such that the first and second nano-structures assemble into a multi-component nano-structure.
Description
CROSS-REFERENCE OF RELATED APPLICATION[0001]This application claims priority to U.S. Provisional Application No. 61 / 157,032 filed Mar. 3, 2009, the entire contents of which are hereby incorporated by reference.[0002]The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of Grant No. DMR04-03849 awarded by the National Science Foundation.BACKGROUND[0003]1. Field of Invention[0004]The current invention relates to methods and systems for assembling multi-component nano-structures and novel multi-component nano-structures.[0005]2. Discussion of Related Art[0006]The study of nano-materials often includes fabrication, characterization, and applications of the nano-structures. A vast variety of nano-structures made of metallic, semiconductive, magnetic, and polymer materials have been fabricated into OD dots (S. Link and M. A. El-Sayed, J. Phys. Chem. B...
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IPC IPC(8): B32B7/02C25B15/00C25B7/00B22F1/0545B22F1/148B82Y30/00B82Y40/00
CPCB22F1/0022B22F1/0025B22F1/0096Y10T428/24942B82Y40/00B03C5/005B82Y30/00Y10T428/26Y10T428/2933Y10T428/2938B22F1/0547B22F1/0545B22F1/148B81C3/004B81C99/002B81C1/00007B81C1/00182B81C1/00198B81B3/0097B81B5/00
Inventor CHIEN, CHIA-LINGFAN, DONGLEICAMMARATA, ROBERT CHARLES
Owner THE JOHN HOPKINS UNIV SCHOOL OF MEDICINE