CN111635596A - Preparation method and application of gel photonic crystal with self-repairing performance - Google Patents
Preparation method and application of gel photonic crystal with self-repairing performance Download PDFInfo
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- 239000004038 photonic crystal Substances 0.000 title claims abstract description 104
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 239000004005 microsphere Substances 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 25
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 16
- 238000007710 freezing Methods 0.000 claims abstract description 16
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 16
- 230000008014 freezing Effects 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000000843 powder Substances 0.000 claims abstract description 7
- 239000000725 suspension Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims description 11
- 238000010257 thawing Methods 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 239000004793 Polystyrene Substances 0.000 claims description 7
- 229920002223 polystyrene Polymers 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 5
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 4
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 4
- 239000000377 silicon dioxide Substances 0.000 claims description 4
- 239000000835 fiber Substances 0.000 abstract description 3
- 239000013003 healing agent Substances 0.000 abstract description 3
- 230000000638 stimulation Effects 0.000 abstract description 3
- 235000008113 selfheal Nutrition 0.000 abstract 1
- 239000000499 gel Substances 0.000 description 55
- 239000000463 material Substances 0.000 description 10
- 239000010408 film Substances 0.000 description 4
- 239000000017 hydrogel Substances 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000012299 nitrogen atmosphere Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2329/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2329/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2329/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2425/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2425/02—Homopolymers or copolymers of hydrocarbons
- C08J2425/04—Homopolymers or copolymers of styrene
- C08J2425/06—Polystyrene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2429/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Derivatives of such polymer
- C08J2429/02—Homopolymers or copolymers of unsaturated alcohols
- C08J2429/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
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Abstract
The invention discloses a preparation method and application of a gel photonic crystal with self-repairing performance, wherein the method comprises the following steps: step 1, dissolving polyvinyl alcohol powder in water at 90-100 ℃ to obtain a uniform and transparent solution of polyvinyl alcohol; step 2, cooling the transparent solution obtained in the step 1 to 40-70 ℃, and mixing the transparent solution with the monodisperse nano colloidal microsphere suspension in a volume ratio of 1: (0.5-5) mixing uniformly; step 3, freezing the mixture obtained in the step 2 at-30-0 ℃ for 10-48 hours; and 4, unfreezing the frozen gel photonic crystal obtained in the step 3 at room temperature for 0.5-4 hours to obtain the gel photonic crystal with self-repairing performance. The preparation method provided by the invention is simple and convenient; the prepared gel photonic crystal can self-heal at room temperature or low temperature quickly and automatically without any stimulation or healing agent, overcomes the limitation that the traditional photonic crystal can only be used for preparing photonic fibers, films and the like, and can realize the superposed structure of the photonic crystal.
Description
Technical Field
The invention relates to a photonic crystal, in particular to a preparation method and application of a gel photonic crystal with self-repairing performance.
Background
The photonic crystal is an ordered structure material formed by arranging two or more materials with different dielectric constants (refractive indexes) in a certain periodic sequence in space. Since the concept of photonic crystals was independently proposed by s.john and e.yablonovitch in 1987, research and application based on photonic crystals have been actively developed over thirty years.
The most basic optical characteristic of a photonic crystal is to have a photonic band gap, i.e., a photonic band gap. When the forbidden band of the photonic crystal is in the visible light frequency range, the light of the frequency cannot penetrate through the photonic crystal, but forms coherent diffraction on the surface of the photonic crystal, and the photonic crystal can show the color of the light of the frequency, so the photonic crystal can show gorgeous structural color. The colloidal photonic crystal based on colloidal particles belongs to a metastable state structure as the most common photonic crystal material at present, the combination of the particles depends on weak electrostatic force, so the colloidal photonic crystal is easy to damage and difficult to popularize and apply, and the photonic crystal with self-repairing performance can be prepared by combining the self-repairing material with the colloidal photonic crystal structure. The photonic crystal not only has stronger stability, but also shows wide application prospect.
The self-repairing materials are used as intelligent materials, the self-repairing capability of the self-repairing materials can prolong the service life of the self-repairing materials, and sustainable development is realized through recycling. And the combination of the gel with the same substrate but different characteristics can be realized through self-repairing, so that the multi-functionalization of the gel is realized.
However, the existing method for preparing the photonic crystal with self-repairing performance can only prepare a thin film, and cannot prepare a material with a 3D complex structure in one step.
Disclosure of Invention
The invention aims to provide a simple preparation method of a gel photonic crystal with self-repairing performance, and the gel photonic crystal prepared by the method not only breaks through the limitation that only a common film structure can be manufactured for a long time, but also can realize the superposed structure of the photonic crystal, can obtain a complex photonic crystal with a multi-stage structure, and provides a new method for realizing the multi-stage structure of the photonic crystal.
In order to achieve the above object, the present invention provides a method for preparing a gel photonic crystal having self-repairing properties, the method comprising:
step 1, dissolving polyvinyl alcohol powder in water at 90-100 ℃ to obtain a uniform and transparent solution of polyvinyl alcohol;
step 2, cooling the transparent solution obtained in the step 1 to 40-70 ℃, and mixing the transparent solution with the monodisperse nano colloidal microsphere suspension in a volume ratio of 1: (0.5-5) mixing uniformly;
step 3, freezing the mixture obtained in the step 2 at-30-0 ℃ for 10-48 hours;
and 4, unfreezing the frozen gel photonic crystal obtained in the step 3 at room temperature for 0.5-4 hours to obtain the gel photonic crystal with self-repairing performance.
Preferably, the mass fraction of the transparent solution in the step 1 is 5-35%.
Preferably, the monodisperse nano colloidal microspheres in step 2 are selected from any one of polystyrene colloidal microspheres, polymethyl methacrylate colloidal microspheres or silica colloidal microspheres with uniform particle size, or a combination of any two or more of the polystyrene colloidal microspheres, the polymethyl methacrylate colloidal microspheres or the silica colloidal microspheres.
Preferably, the particle size of the monodisperse nano colloidal microsphere in step 2 is 100-400 nm.
Preferably, the mixture obtained in step 2 is transferred to a mold and then step 3 is performed to obtain a gel photonic crystal having a specific size and shape.
Preferably, the freezing process in step 3 and the thawing process in step 4 are performed in a plurality of alternating cycles.
The invention also provides the application of the gel photonic crystal with self-repairing performance prepared by the preparation method, and the gel photonic crystal is used for realizing the superposition of photonic crystals to obtain a multilevel structure.
Preferably, the use method of the gel photonic crystal comprises the following steps: and (3) bonding the gel photonic crystal with self-repairing performance, and standing at normal temperature for more than 1 hour.
Preferably, another using method of the gel photonic crystal comprises the following steps:
s1, attaching the gel photonic crystal with self-repairing performance, and freezing at-30-0 ℃ for more than 0.5 hour;
and S2, thawing the gel photonic crystal obtained in the S1 at room temperature.
Preferably, the freezing process described in S1 and the thawing process described in S2 are alternately cycled a plurality of times.
The preparation method and the application of the gel photonic crystal with the self-repairing performance provided by the invention have the following advantages:
the preparation method provided by the invention is simple and convenient; the prepared gel photonic crystal fixes the colloidal microsphere ordered array in the gel, and has good stability; the physically crosslinked polyvinyl alcohol hydrogel prepared by the freezing-thawing method can be self-healed rapidly at room temperature or low temperature without any stimulation or healing agent, overcomes the limitation that the traditional photonic crystal can only be used for preparing photonic fibers, films and the like, can realize the superposed structure of the photonic crystal, can obtain the complex photonic crystal with a multilevel structure, and provides a new method for the multilevel structure of the photonic crystal.
Drawings
Fig. 1 is a diagram of a two-dimensional photonic crystal film prepared in example 1 of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a preparation method of a gel photonic crystal with self-repairing performance, which comprises the following steps.
Step 1, dissolving polyvinyl alcohol powder in water at 90-100 ℃ in a nitrogen atmosphere to obtain a uniform transparent solution of polyvinyl alcohol, wherein the mass fraction of the transparent solution is 5% -35%;
step 2, cooling the transparent solution obtained in the step 1 to 40-70 ℃, and mixing the transparent solution with the monodisperse nano colloidal microsphere suspension in a volume ratio of 1: (0.5-5), uniformly mixing, wherein the monodisperse nano colloidal microspheres are any one or the combination of more than two of polystyrene colloidal microspheres, polymethyl methacrylate colloidal microspheres or silicon dioxide colloidal microspheres with uniform particle size, and the particle size of the microspheres is 100-400 nm;
step 3, transferring the mixture obtained in the step 2 to a mold with a specific size and shape, and freezing the mixture at the temperature of between 30 ℃ below zero and 0 ℃ for 10 to 48 hours, wherein the mold with the specific size and shape refers to molds with various materials, sizes and shapes, the molds can endow the gel with a certain shape, and the structure of the molds determines the shape of the sample after being taken out;
and 4, unfreezing the frozen gel photonic crystal obtained in the step 3 at room temperature for 0.5-4 hours to obtain the gel photonic crystal with self-repairing performance.
The invention selects polyvinyl alcohol powder to dissolve and obtain transparent solution, a large amount of chain-shaped organic matters containing hydroxyl in the solution are frozen and unfrozen after being uniformly mixed with monodisperse nano colloidal microsphere suspension. After being frozen, the polyvinyl alcohol is crystallized and forms a hydrogen bond network structure with water in a low-temperature environment. The solid was then thawed to give a gel. The freezing and thawing processes are alternately and circularly carried out for a plurality of times, so that the toughness of the gel photonic crystal can be enhanced.
The invention also provides an application of the gel photonic crystal with self-repairing performance prepared by the preparation method, the gel photonic crystal is used for realizing the superposition of the photonic crystal to obtain a multilevel structure, and the application method comprises the following steps: bonding the gel photonic crystal with self-repairing performance, and standing for more than 1 hour at normal temperature; or freezing at-30-0 deg.C for more than 0.5 hr, and thawing the frozen gel photonic crystal at room temperature. The self-repairing of the gel can be promoted in a low-temperature environment, in the freezing-unfreezing cycle, the polyvinyl alcohol hydrogel generates physical crosslinking due to the action of hydrogen bonds, and mutually independent gel photonic crystals are reconnected under the action of the hydrogen bonds.
Example 1
Step 1, dissolving polyvinyl alcohol powder in deionized water for 2 hours at 95 ℃ in a nitrogen atmosphere to obtain a polyvinyl alcohol uniform transparent solution with the mass fraction of about 20%;
step 2, cooling the transparent solution obtained in the step 1 to 70 ℃, and uniformly mixing the transparent solution with a monodisperse polystyrene nano colloidal microsphere suspension with the particle size of 180nm in a volume ratio of 1:2 to obtain a mixture;
step 3, transferring the mixture obtained in the step 2 into a glass test tube with the inner diameter of 10mm, and freezing for 24 hours at the temperature of minus 20 ℃ to obtain a gel photonic crystal column;
step 4, unfreezing the gel photonic crystal frozen in the step 3 at room temperature for 0.5-4 hours to obtain the gel photonic crystal with self-repairing performance;
step 5, cutting the gel photonic crystal obtained in the step 4 and attaching the cut gel photonic crystal; the purpose of shearing is to verify that the gel photonic crystal has self-repairing performance;
and 6, placing the gel photonic crystal bonded in the step 5 for 1 hour at normal temperature.
As shown in fig. 1, the gel photonic crystal with self-repairing performance has obvious photonic crystal structure color after being attached and connected through the process. Experimental data show that the gel photonic crystal after self-repairing has equivalent performance to the initial gel photonic crystal, and the tensile strength of the gel photonic crystal after self-repairing can be recovered to 74% before fitting.
Example 2
Step 1, dissolving polyvinyl alcohol powder in deionized water for 2 hours at 99 ℃ in a nitrogen atmosphere to obtain a transparent polymer solution with the mass fraction of 10%.
Step 2, cooling the transparent solution obtained in the step 1 to 70 ℃, and uniformly mixing the transparent solution with a polystyrene colloidal microsphere suspension with the particle size of 100nm in a volume ratio of 1:2 to obtain a mixture;
step 3, transferring the mixture obtained in the step 2 into a test tube with the inner diameter of 10mm, and freezing the test tube at the temperature of minus 20 ℃ for 10 hours to obtain a gel photonic crystal column;
step 4, repeating the step 1-3 by using monodisperse polystyrene colloidal microspheres with the particle size of 200nm to obtain a gel photonic crystal column;
step 5, unfreezing the frozen gel photonic crystal in the step 3 and the step 4 at room temperature for 0.5 to 4 hours;
step 6, the two gel photonic crystal columns obtained in the step 5 are jointed;
and 7, transferring the gel photonic crystal attached in the step 6 to a place at the temperature of minus 20 ℃ for freezing for 0.5 hour.
Experimental data show that the self-repaired gel photonic crystal has equivalent performance to the initial gel photonic crystal, and the tensile strength of the self-repaired gel photonic crystal is 74% of that of the initial gel photonic crystal.
In conclusion, the invention provides a preparation method of the gel photonic crystal with self-repairing performance, and the preparation method is simple and convenient; the prepared gel photonic crystal fixes the colloidal microsphere ordered array in the gel, and has good stability; the physically crosslinked polyvinyl alcohol hydrogel prepared by the freezing-freezing method can be self-healed rapidly at room temperature or low temperature without any stimulation or healing agent, overcomes the limitation that the traditional photonic crystal can only be used for preparing photonic fibers, films and the like, can realize the superposed structure of the photonic crystal, can obtain the complex photonic crystal with a multilevel structure, and provides a new method for the multilevel structure of the photonic crystal.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. A preparation method of gel photonic crystal with self-repairing performance is characterized by comprising the following steps:
step 1, dissolving polyvinyl alcohol powder in water at 90-100 ℃ to obtain a uniform and transparent solution of polyvinyl alcohol;
step 2, cooling the transparent solution obtained in the step 1 to 40-70 ℃, and mixing the transparent solution with the monodisperse nano colloidal microsphere suspension in a volume ratio of 1: (0.5-5) mixing uniformly;
step 3, freezing the mixture obtained in the step 2 at-30-0 ℃ for 10-48 hours;
and 4, unfreezing the frozen gel photonic crystal obtained in the step 3 at room temperature for 0.5-4 hours to obtain the gel photonic crystal with self-repairing performance.
2. The method for preparing a gel photonic crystal with self-repairing property according to claim 1, wherein the mass fraction of the transparent solution in the step 1 is 5-35%.
3. The method for preparing a gel photonic crystal with self-repairing performance according to claim 1, wherein the monodisperse nano colloidal microspheres in step 2 are any one or a combination of any two or more of polystyrene colloidal microspheres, polymethyl methacrylate colloidal microspheres or silica colloidal microspheres with uniform particle size.
4. The method for preparing a gel photonic crystal with self-repairing property as claimed in claim 1, wherein the particle size of the monodisperse nano colloidal microspheres in step 2 is 100-400 nm.
5. The method for preparing a gel photonic crystal with self-repairing property according to claim 1, wherein the mixture obtained in step 2 is transferred to a mold and then step 3 is performed to obtain a gel photonic crystal with a specific size and shape.
6. The method for preparing a gel photonic crystal with self-repairing property as claimed in claim 1, wherein the freezing process of step 3 and the thawing process of step 4 are alternately cycled for a plurality of times.
7. The use of the gel photonic crystal with self-repairing performance prepared by the preparation method of claim 1 is characterized in that the gel photonic crystal is used for realizing the superposition of photonic crystals to obtain a multilevel structure.
8. The use of claim 8, wherein the gel photonic crystal is used by a method comprising: and (3) bonding the gel photonic crystal with self-repairing performance, and standing at normal temperature for more than 1 hour.
9. The use of claim 8, wherein the gel photonic crystal is used in a method comprising:
s1, attaching the gel photonic crystal with self-repairing performance, and freezing at-30-0 ℃ for more than 0.5 hour;
and S2, thawing the gel photonic crystal obtained in the S1 at room temperature.
10. The use of claim 9, wherein the freezing process of S1 and the thawing process of S2 are performed in a plurality of alternating cycles.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000204183A (en) * | 1999-01-12 | 2000-07-25 | Sharp Corp | Polymer gel carrier and its production |
| CN101899712A (en) * | 2010-07-27 | 2010-12-01 | 华东理工大学 | Thermoreversible physical gel photonic crystal material and preparation method thereof |
| CN105601951A (en) * | 2015-12-28 | 2016-05-25 | 上海第二工业大学 | Fast preparing method of gel photon crystal |
| CN107556509A (en) * | 2017-08-28 | 2018-01-09 | 上海第二工业大学 | A kind of preparation method of 2 D photon crystal glucose sensing film |
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2020
- 2020-07-09 CN CN202010656703.5A patent/CN111635596A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000204183A (en) * | 1999-01-12 | 2000-07-25 | Sharp Corp | Polymer gel carrier and its production |
| CN101899712A (en) * | 2010-07-27 | 2010-12-01 | 华东理工大学 | Thermoreversible physical gel photonic crystal material and preparation method thereof |
| CN105601951A (en) * | 2015-12-28 | 2016-05-25 | 上海第二工业大学 | Fast preparing method of gel photon crystal |
| CN107556509A (en) * | 2017-08-28 | 2018-01-09 | 上海第二工业大学 | A kind of preparation method of 2 D photon crystal glucose sensing film |
Non-Patent Citations (4)
| Title |
|---|
| CHENG CHEN等: "Physically Controlled Cross-Linking in Gelated Crystalline Colloidal Array Photonic Crystals", 《ACS APPL. MATER. INTERFACES》 * |
| 刘颂豪等: "《光子学技术与应用》", 30 September 2006, 广东科技出版社 * |
| 董志强等: "可修复水凝胶光子晶体的制备", 《上海第二工业大学学报》 * |
| 薛巍等: "《生物医用水凝胶》", 31 December 2012, 暨南大学出版社 * |
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