CN106475572A - A kind of synthetic method of novel nano silver wire - Google Patents
A kind of synthetic method of novel nano silver wire Download PDFInfo
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- CN106475572A CN106475572A CN201610877124.7A CN201610877124A CN106475572A CN 106475572 A CN106475572 A CN 106475572A CN 201610877124 A CN201610877124 A CN 201610877124A CN 106475572 A CN106475572 A CN 106475572A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
- B22F1/0547—Nanofibres or nanotubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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Abstract
The present invention is a kind of synthetic method of novel nano silver wire, concretely comprises the following steps：Silver nitrate solution microwave-oven-heating is seethed with excitement to abundant；Then dropwise inject trisodium citrate, mixed solution is sufficiently stirred for, is allowed to be mixed thoroughly；Mixed solution after being sufficiently stirred for is placed under ultraviolet light and irradiates, prepared nano-Ag particles colloidal sol；Nano-Ag particles colloidal sol is dropped on the mica sheet of new stripping, obtains elargol mica sheet；Calf thymus DNA fiber ultra-pure water is configured to the DNA solution that concentration is 2ng/ μ l, using dynamic molecular comb method, DNA is stretched on the new mica sheet peeled off, then covered and obtain nano-silver thread on described elargol mica sheet.The method that the present invention is combined using microwave heating and ultraviolet irradiation, first prepare nano-Ag particles by adding organic salt trisodium citrate to reduce silver nitrate, then the electrostatic self-assembled property further according to DNA prepares specification even silver wire, and method is simple, efficiently.
Description
Technical field
The present invention relates to the preparation synthesis field of nano-silver thread, more particularly, to a kind of synthetic method of novel nano silver wire.
Background technology
At present, application potential with the electrical and optical properties of its uniqueness and in nanoelectronic circuit for the metal nanometer line
Receive more and more attention.Because silver has a best conductive and heat-conductive effect in numerous metals, one-dimensional nano silver wire or
Nanometer bundle has broad application prospects in nanometric circuit.Researchers pass through to make great efforts to have found out many synthesis silver at present
The method of nano wire, such as template, hydro-thermal method, alcohol full-boiled process and self-assembly method.But sometimes these methods be obtained mostly be grain
Than larger spherical or bar-shaped nano silver wire, prepared product is sometimes also not uniform in footpath.
Content of the invention
Present invention seek to address that the deficiencies in the prior art, and a kind of synthetic method of novel nano silver wire is provided.
The present invention for achieving the above object, employs the following technical solutions：
A kind of synthetic method of novel nano silver wire, concretely comprises the following steps：
(1) preparation of nano-Ag particles
A, microwave heating treatment：
The silver nitrate solution microwave-oven-heating that 210-250ml concentration is 0.02% seethes with excitement to abundant；Then dropwise note
Enter the trisodium citrate that 2.5-3ml concentration is 1.2%-1.3%, mixed solution is sufficiently stirred for, be allowed to be thoroughly mixed all
Even；
B, ultra-vioket radiation are processed：
Mixed solution after being sufficiently stirred for is placed under the ultraviolet light that wavelength is 370nm and 0.8AMP and irradiates, irradiate
Time control is 70-75min, prepared nano-Ag particles colloidal sol；
C, post processing：
The nano-Ag particles colloidal sol of 25ul is dropped on the mica sheet of new stripping, obtains elargol mica sheet；
(2) synthesis of nano-silver thread
Calf thymus DNA fiber ultra-pure water is configured to the DNA solution that concentration is 2ng/ μ l, using dynamic molecular comb side
Method stretches DNA on the new mica sheet peeled off, and is then covered on described elargol mica sheet, raps absorption a period of time,
Nano-silver thread is obtained according to the electrostatic assembly property of DNA.
Described dynamic molecular comb method includes：
Preparation is by silane or the coated mica sheet of polymethyl methacrylate hydrophobic surface；
Coated for hydrophobic surface mica sheet is dipped in 5min in DNA solution, makes the end of DNA molecular be attached to mica sheet
On；
Mica sheet is extracted out from solution, at mica sheet-solution interface, due to surface tension of liquid effect so that
DNA molecular is stretched, and surface is dried quickly, and DNA fiber is irreversibly fixed in mica sheet surface, thus DNA is stretched
On the new mica sheet peeled off.
The length of the nano-silver thread being obtained according to the electrostatic self-assembled property of DNA is 2-3 μm, a diameter of 20-30nm.
The invention has the beneficial effects as follows：The method that the present invention is combined using microwave heating and ultraviolet irradiation, by adding
Enter organic salt trisodium citrate reduction silver nitrate and first prepare nano-Ag particles, then further according to the electrostatic self-assembled property of DNA
Prepare the nano-silver thread of the uniform a diameter of 20-30nm of specification, method is simple, efficiently.
Specific embodiment
With reference to specific embodiment, the invention will be further described：
Embodiment 1：
A kind of synthetic method of novel nano silver wire, concretely comprises the following steps：
(1) preparation of nano-Ag particles
A, microwave heating treatment：
The silver nitrate solution microwave-oven-heating that 210ml concentration is 0.02% seethes with excitement to abundant；Then dropwise inject
2.5ml concentration is 1.2% trisodium citrate, and mixed solution is sufficiently stirred for, and is allowed to be mixed thoroughly；
B, ultra-vioket radiation are processed：
Mixed solution after being sufficiently stirred for is placed under the ultraviolet light that wavelength is 370nm and 0.8AMP and irradiates, irradiate
Time control is 70min, prepared nano-Ag particles colloidal sol；
C, post processing：
The nano-Ag particles colloidal sol of 25ul is dropped on the mica sheet of new stripping, obtains elargol mica sheet；
(2) synthesis of nano-silver thread
Calf thymus DNA fiber ultra-pure water is configured to the DNA solution that concentration is 2ng/ μ L, using dynamic molecular comb side
Method stretches DNA on the new mica sheet peeled off, and is then covered on described elargol mica sheet, raps absorption a period of time,
Nano-silver thread is obtained according to the electrostatic assembly property of DNA.
Described dynamic molecular comb method includes：
Preparation is by the coated mica sheet of silane hydrophobic surface；
Coated for hydrophobic surface mica sheet is dipped in 5min in DNA solution, makes the end of DNA molecular be attached to mica sheet
On；
Mica sheet is extracted out from solution, at mica sheet-solution interface, due to surface tension of liquid effect so that
DNA molecular is stretched, and surface is dried quickly, and DNA fiber is irreversibly fixed in mica sheet surface, thus DNA is stretched
On the new mica sheet peeled off.
The length of the nano-silver thread being obtained according to the electrostatic self-assembled property of DNA is 2 μm, a diameter of 20nm.
Embodiment 2：
A kind of synthetic method of novel nano silver wire, concretely comprises the following steps：
(1) preparation of nano-Ag particles
A, microwave heating treatment：
The silver nitrate solution microwave-oven-heating that 250ml concentration is 0.02% seethes with excitement to abundant；Then dropwise inject 3ml
Concentration is 1.3% trisodium citrate, and mixed solution is sufficiently stirred for, and is allowed to be mixed thoroughly；
B, ultra-vioket radiation are processed：
Mixed solution after being sufficiently stirred for is placed under the ultraviolet light that wavelength is 370nm and 0.8AMP and irradiates, irradiate
Time control is 75min, prepared nano-Ag particles colloidal sol；
C, post processing：
The nano-Ag particles colloidal sol of 25ul is dropped on the mica sheet of new stripping, obtains elargol mica sheet；
(2) synthesis of nano-silver thread
Calf thymus DNA fiber ultra-pure water is configured to the DNA solution that concentration is 2ng/ μ l, using dynamic molecular comb side
Method stretches DNA on the new mica sheet peeled off, and is then covered on described elargol mica sheet, raps absorption a period of time,
Nano-silver thread is obtained according to the electrostatic assembly property of DNA.
Described dynamic molecular comb method includes：
Preparation is by the coated mica sheet of polymethyl methacrylate hydrophobic surface；
Coated for hydrophobic surface mica sheet is dipped in 5min in DNA solution, makes the end of DNA molecular be attached to mica sheet
On；
Mica sheet is extracted out from solution, at mica sheet-solution interface, due to surface tension of liquid effect so that
DNA molecular is stretched, and surface is dried quickly, and DNA fiber is irreversibly fixed in mica sheet surface, thus DNA is stretched
On the new mica sheet peeled off.
The length of the nano-silver thread being obtained according to the electrostatic self-assembled property of DNA is 3 μm, a diameter of 30nm.
Embodiment 3：
A kind of synthetic method of novel nano silver wire, concretely comprises the following steps：
(1) preparation of nano-Ag particles
A, microwave heating treatment：
The silver nitrate solution microwave-oven-heating that 230ml concentration is 0.02% seethes with excitement to abundant；Then dropwise inject
2.8ml concentration is 1.2% trisodium citrate, and mixed solution is sufficiently stirred for, and is allowed to be mixed thoroughly；
B, ultra-vioket radiation are processed：
Mixed solution after being sufficiently stirred for is placed under the ultraviolet light that wavelength is 370nm and 0.8AMP and irradiates, irradiate
Time control is 73min, prepared nano-Ag particles colloidal sol；
C, post processing：
The nano-Ag particles colloidal sol of 25ul is dropped on the mica sheet of new stripping, obtains elargol mica sheet；
(2) synthesis of nano-silver thread
Calf thymus DNA fiber ultra-pure water is configured to the DNA solution that concentration is 2ng/ μ l, using dynamic molecular comb side
Method stretches DNA on the new mica sheet peeled off, and is then covered on described elargol mica sheet, raps absorption a period of time,
Nano-silver thread is obtained according to the electrostatic assembly property of DNA.
Described dynamic molecular comb method includes：
Preparation is by the coated mica sheet of silane hydrophobic surface；
Coated for hydrophobic surface mica sheet is dipped in 5min in DNA solution, makes the end of DNA molecular be attached to mica sheet
On；
Mica sheet is extracted out from solution, at mica sheet-solution interface, due to surface tension of liquid effect so that
DNA molecular is stretched, and surface is dried quickly, and DNA fiber is irreversibly fixed in mica sheet surface, thus DNA is stretched
On the new mica sheet peeled off.
The length of the nano-silver thread being obtained according to the electrostatic self-assembled property of DNA is 2 μm, a diameter of 25nm.
The method that the present invention is combined using microwave heating and ultraviolet irradiation, by adding organic salt trisodium citrate also
Orthonitric acid silver first prepares nano-Ag particles, and then the electrostatic self-assembled property further according to DNA prepares the uniform diameter of specification
Nano-silver thread for 20-30nm, method is simple, efficiently.
Above in conjunction with specific embodiment, the present invention is exemplarily described it is clear that the present invention implement be not subject to upper
State the restriction of mode, as long as employing the various improvement that method of the present invention design and technical scheme are carried out or not improved straight
Scoop out for other occasions, all within protection scope of the present invention.
Claims (3)
1. a kind of synthetic method of novel nano silver wire is it is characterised in that concretely comprise the following steps：
(1) preparation of nano-Ag particles
A, microwave heating treatment：
The silver nitrate solution microwave-oven-heating that 210-250ml concentration is 0.02% seethes with excitement to abundant；Then dropwise inject
2.5-3ml concentration is the trisodium citrate of 1.2%-1.3%, mixed solution is sufficiently stirred for, is allowed to be mixed thoroughly；
B, ultra-vioket radiation are processed：
Mixed solution after being sufficiently stirred for is placed under the ultraviolet light that wavelength is 370nm and 0.8AMP and irradiates, irradiation time
It is controlled to 70-75min, prepared nano-Ag particles colloidal sol；
C, post processing：
The nano-Ag particles colloidal sol of 25ul is dropped on the mica sheet of new stripping, obtains elargol mica sheet；
(2) synthesis of nano-silver thread
Calf thymus DNA fiber ultra-pure water is configured to the DNA solution that concentration is 2ng/ μ l, using dynamic molecular comb method handle
DNA stretches on the new mica sheet peeled off, and is then covered on described elargol mica sheet, raps absorption a period of time, according to
The electrostatic assembly property of DNA obtains nano-silver thread.
2. a kind of synthetic method of novel nano silver wire according to claim 1 is it is characterised in that described dynamic molecular comb
Method includes：
Preparation is by silane or the coated mica sheet of polymethyl methacrylate hydrophobic surface；
Coated for hydrophobic surface mica sheet is dipped in 5min in DNA solution, so that the end of DNA molecular is attached on mica sheet；
Mica sheet is extracted out from solution, at mica sheet-solution interface, because the effect of surface tension of liquid is so that DNA divides
Son is stretched, and surface is dried quickly, and DNA fiber is irreversibly fixed in mica sheet surface, thus DNA is stretched shelling new
From mica sheet on.
3. a kind of synthetic method of novel nano silver wire according to claim 2 is it is characterised in that electrostatic according to DNA
The length of the nano-silver thread that self-assembly property obtains is 2-3 μm, a diameter of 20-30nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877124.7A CN106475572A (en) | 2016-09-30 | 2016-09-30 | A kind of synthetic method of novel nano silver wire |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610877124.7A CN106475572A (en) | 2016-09-30 | 2016-09-30 | A kind of synthetic method of novel nano silver wire |
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| CN201610877124.7A Withdrawn CN106475572A (en) | 2016-09-30 | 2016-09-30 | A kind of synthetic method of novel nano silver wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019132846A1 (en) * | 2017-12-27 | 2019-07-04 | Yildiz Teknik Universitesi | Photo-chemical synthesis and characterization of silver nanoparticles self-arranged on ct-dna and bsa |
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| US20050202668A1 (en) * | 2004-02-26 | 2005-09-15 | The Penn State Research Foundation | Methods of patterning a surface using single and multilayer molecular films |
| DE102009037011B3 (en) * | 2009-08-08 | 2011-05-12 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | Molecular lithography process for nanopattern generation in a substrate, comprises producing a mask structure with a self-styled organization, from single unbranched macromolecules with negative load |
| CN103539065A (en) * | 2012-07-10 | 2014-01-29 | 中国科学院苏州纳米技术与纳米仿生研究所 | Method for constructing nanoparticle-nanorod composite structure and constructed composite structure |
| CN104614360A (en) * | 2015-01-16 | 2015-05-13 | 中国科学院合肥物质科学研究院 | Method for assembling precious metal nanocrystalline on surface of conical fiber |
-
2016
- 2016-09-30 CN CN201610877124.7A patent/CN106475572A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050202668A1 (en) * | 2004-02-26 | 2005-09-15 | The Penn State Research Foundation | Methods of patterning a surface using single and multilayer molecular films |
| DE102009037011B3 (en) * | 2009-08-08 | 2011-05-12 | Helmholtz-Zentrum Berlin Für Materialien Und Energie Gmbh | Molecular lithography process for nanopattern generation in a substrate, comprises producing a mask structure with a self-styled organization, from single unbranched macromolecules with negative load |
| CN103539065A (en) * | 2012-07-10 | 2014-01-29 | 中国科学院苏州纳米技术与纳米仿生研究所 | Method for constructing nanoparticle-nanorod composite structure and constructed composite structure |
| CN104614360A (en) * | 2015-01-16 | 2015-05-13 | 中国科学院合肥物质科学研究院 | Method for assembling precious metal nanocrystalline on surface of conical fiber |
Non-Patent Citations (4)
| Title |
|---|
| 刘昊等: "银纳米线的制备及梳直", 《聊城大学学报（自然科学版）》 * |
| 刘玉颖等: "应用分子梳技术对DNA单分子的研究", 《自然科学进展》 * |
| 周清华: "DNA金属化及其相关电学特性研究", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 班戈等: "DNA银纳米线的制备及其拉曼光谱", 《光谱学与光谱分析》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019132846A1 (en) * | 2017-12-27 | 2019-07-04 | Yildiz Teknik Universitesi | Photo-chemical synthesis and characterization of silver nanoparticles self-arranged on ct-dna and bsa |
| US11565320B2 (en) | 2017-12-27 | 2023-01-31 | Yildiz Teknik Universitesi | Photo-chemical synthesis and characterization of silver nanoparticles self-arranged on ct-DNA and BSA |
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