Dynamic nanochannel and preparing and testing methods thereof

A nano-channel and dynamic technology, applied in nanotechnology, measuring devices, material analysis through electromagnetic means, etc., can solve the problem of non-adjustable aperture and achieve the effect of guaranteed detection

Active Publication Date: 2019-12-03
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Dynamic nanochannel and preparing and testing methods thereof
  • Dynamic nanochannel and preparing and testing methods thereof
  • Dynamic nanochannel and preparing and testing methods thereof

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Embodiment 1

[0038] In the first step, toluene is used as the carbon source, ferrocene is used as the catalyst, and a 4% ferrocene / toluene solution is configured, and the floating-assisted catalytic method (FCCVD) is used to grow and prepare wide-diameter tubes (outer diameter ~ 80nm) at 740°C. , inner diameter ~ 8nm), high crystallinity (I G / D ≈2.51), high density (0.17g / cm3 ), highly controllable (20-1000 μm) carbon nanotube arrays.

[0039] In the second step, the components A and B of polydimethylsiloxane (PDMS) are mixed uniformly at a ratio of 10:1, degassed for 30 minutes, and dropped onto the surface of the in-situ or pre-bent carbon nanotube array with a straw After the array is completely soaked, let it stand for 30 minutes, and set the spin coating program ①500r-20s; ②3000r-40s to remove excess resin. Curing at 70° C. for 3 hours, peeling off the surface of the substrate after complete curing, polishing the surface to expose the ends of the carbon tubes, and slicing the film wi...

Embodiment 2

[0042] In the first step, toluene is used as the carbon source, ferrocene is used as the catalyst, and a 4% ferrocene / toluene solution is configured, and the floating-assisted catalytic method (FCCVD) is used to grow and prepare wide-diameter tubes (outer diameter ~ 80nm) at 740°C. , inner diameter ~ 8nm), high crystallinity (I G / D ≈2.51), high density (0.17g / cm 3 ), highly controllable (20-1000 μm) carbon nanotube arrays.

[0043] In the second step, the components A and B of polydimethylsiloxane (PDMS) are mixed uniformly at a ratio of 10:1, degassed for 30 minutes, and dropped onto the surface of the in-situ or pre-bent carbon nanotube array with a straw After the array is completely soaked, let it stand for 30 minutes, and set the spin coating program ①500r-20s; ②3000r-40s to remove excess resin. Curing at 70°C for 3 hours, peeling off the substrate surface after complete curing, polishing the surface to expose the carbon tube ends, and cutting the film with an ultramicr...

Embodiment 3

[0046] In the first step, toluene is used as the carbon source, ferrocene is used as the catalyst, and a 4% ferrocene / toluene solution is configured, and the floating-assisted catalytic method (FCCVD) is used to grow and prepare wide-diameter tubes (outer diameter ~ 80nm) at 740°C. , inner diameter ~ 8nm), high crystallinity (I G / D ≈2.51), high density (0.17g / cm 3 ), highly controllable (20-1000 μm) carbon nanotube arrays.

[0047] In the second step, the components A and B of polydimethylsiloxane (PDMS) are mixed uniformly at a ratio of 10:1, degassed for 30 minutes, and dropped onto the surface of the in-situ or pre-bent carbon nanotube array with a straw After the array is completely soaked, let it stand for 30 minutes, and set the spin coating program ①500r-20s; ②3000r-40s to remove excess resin. Curing at 70°C for 3 hours, peeling off the substrate surface after complete curing, polishing the surface to expose the carbon tube ends, and cutting the film with an ultramicr...

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Abstract

The invention relates to a dynamic nanochannel and preparing and testing methods thereof. A flexible nano hole channel capable of dynamically deformation is prepared from a carbon nanotube array and aflexible polymer which are composited, a corresponding device is designed to research the transport property of ions in the flexible nano hole channel, the conditions are controlled, thus the array is dynamically deformed at different degrees, and the property of ion transport during dynamic deformation is researched. By combining with special properties of an ion solution in the dynamic nano hole channel, the preparation method is a novel method for researching the dynamic nanochannel. Different from a traditional preparation method of the nano hole channel, the carbon nanotube array and thepolymer are composited, thus the flexible nano channel capable of dynamically deformation is prepared easily and conveniently, and meanwhile, the ion transport property of the nanochannel in the dynamic deformation process can be researched.

Description

technical field [0001] The invention relates to a novel method for preparing and testing dynamic nano-channels, which realizes the preparation of dynamic nano-channels based on the good mechanical properties of carbon nanotubes, the combination of their own nano-scale channels and flexible polymers. Background technique [0002] Nanopores can be found everywhere in nature, and the study of ion transport properties in nanopores is of great significance to the fields of life science and nanofluidics. However, in living organisms, the geometry of many nanochannels is dynamically changing. For example, nanochannels between cells undergo continuous geometric deformation during physiological processes and diseases. Therefore, studying ion transport in dynamic nanopores is necessary for a deep understanding of cellular activities. Artificial nanochannels provide a good platform for simulating and studying the transport characteristics of biological nanochannels. However, the chan...

Claims

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Application Information

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IPC IPC(8): C08L83/04C08L63/00C08K3/04C08J5/18B82Y40/00G01N27/00
CPCC08J5/18B82Y40/00G01N27/00C08J2383/04C08J2363/00C08K3/041
Inventor 侯旭王苗孟海强
Owner XIAMEN UNIV
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