End-to-end nanotube joining via fluid treatment
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Solution Overview
Problem
Current methods for controlling the dimensions of nanotubes, particularly length, are non-homogeneous and lack effective control, making it challenging to achieve uniform nanotube structures for applications in microelectronic devices and nanobiotechnology.
Innovation Solution
A method for end-to-end joining of nanotubes using a joining fluid with properties different from the nanotube ends, which involves a treating fluid to prepare the nanotubes for subsequent joining, allowing for the formation of uniformly dimensioned nanotubes without the need for templates, and subsequent polymerization to permanently join them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional methods are used to control nanotube dimensions, then nanotubes can be formed, but the nanotube structures are non-homogeneous and lack effective control over dimensions
Solution Approach 1:
The patent applies preliminary action by treating the nanotube ends with a first fluid to prepare them for subsequent joining. This pre-treatment step modifies the nanotube ends to make them suitable for end-to-end joining, thereby enabling precise control over nanotube dimensions and achieving uniform structures without requiring templates or complex fabrication methods.
2Manufacturing precision
If templates are used to control nanotube dimensions, then some structural control is achieved, but the process complexity increases
Solution Approach 1:
The patent extracts and eliminates the need for templates from the fabrication process. By using fluid-based treatment and joining methods, the invention achieves precise nanotube dimension control without requiring complex template structures, thereby simplifying the overall fabrication process while maintaining manufacturing precision.
Solution Approach 2:
The patent introduces fluids as intermediaries to achieve nanotube joining and dimension control. The first fluid treats the nanotube ends, and the second fluid facilitates end-to-end joining, serving as mediating substances that enable precise control without requiring direct mechanical manipulation or complex templates.
3Length of moving object
If nanotubes are joined end-to-end, then nanotube length can be controlled, but the joining process requires specific fluid treatment
Solution Approach 1:
The patent applies parameter changes by using fluids with specific properties (polarity, surface tension) to control the joining process. The first fluid has properties that allow it to treat nanotube ends, while the second fluid has properties that facilitate end-to-end joining. By carefully selecting and changing fluid parameters, the invention achieves precise length control while maintaining ease of manufacture through simple fluid-based procedures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables precise control over nanotube dimensions, resulting in uniformly lengthened nanotubes with maintained diameters, suitable for applications in electronic circuits and nano-bridges between neuronal cells, enhancing selectivity and detection limits.
Implementation Method 1
contacting the nanotubes with a joining fluid. The joining fluid has at least one property that is different from at least one property associated with ends of the nanotubes
Implementation Method 2
contacting the nanotubes with a treating fluid before the nanotubes are contacted with the joining fluid
Implementation Method 3
via the polymerization of polymerizable end-to-end joined nanotubes of the present invention
Data Source
AI summary
A method for joining nanotubes end-to-end, includes contacting the nanotubes with a joining fluid. The joining fluid has at least one property that is different from at least one property associated with ends of the nanotubes. In one embodiment, the method further includes contacting the nanotubes with a first, treating fluid and removing the bulk first fluid before the nanotubes are contacted with the joining fluid. The joining fluid is immiscible in the treating fluid to effect end-to-end joining of the nanotubes.