CN103058133B - Preparation method for assembling chiral nanometer material based on achiral micro molecules - Google Patents
Preparation method for assembling chiral nanometer material based on achiral micro molecules Download PDFInfo
- Publication number
- CN103058133B CN103058133B CN201310034928.7A CN201310034928A CN103058133B CN 103058133 B CN103058133 B CN 103058133B CN 201310034928 A CN201310034928 A CN 201310034928A CN 103058133 B CN103058133 B CN 103058133B
- Authority
- CN
- China
- Prior art keywords
- nanometer particle
- golden nanometer
- sodium chloride
- assembling
- add
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention provides a preparation method for assembling a chiral nanometer material based on achiral micro molecules, and belongs to the nanometer material and optical field. The preparation method comprises the following steps of: preparing gold nanoparticles with the size of 10nm and 25nm, controlling the assembling of the chiral gold nanometer material by sodium chloride, influencing the chirality of the nanometer material by the concentration of the sodium chloride, influencing chiral signals of the grain diameter of the gold nanoparticles, and performing optical and structural characterization on an assembled product of the gold nanoparticles. According to the invention, an asymmetrical tetrahedron assembly structure, which is assembled by the sodium chloride and has the chiral signals, is provided; the sodium chloride can reduce the electrostatic repulsion among the gold nanoparticles, and the nanometer materials with different structures, such as polymers of dipolymer, tripolymer and the like, can be assembled through regulating the concentration of the sodium chloride. The responses of different nanometer assemblies to round two-color signals are different, the dipolymer of large and small gold represents extremely strong chiral signals, and a dynamic assembling process research shows that the dipolymer of the large and small gold is the source of the chiral signals.
Description
Technical field
A kind of preparation method based on the little molecule assembled chiral of achirality nano material, belong to nano material and optical field.
Background technology
Nanometer technology is to manufacture the science and technology of material, character and the application of research structure size material in 0.1 to 100 nanometer range with single atom, molecule.It is to take many modern advanced science and technologies as basic science and technology, be the product of modern science (quantum mechanics, chaos physics, molecular biology, mesoscopic physics) and modern technologies (computer technology, microelectronics and PSTM technology) combination, promote especially the important force of generation and the development of a series of new and high technologies of 21 century.
Nano material is as the important foundation of nanometer technology, is that a class has one dimension at least in nano-scale range or the material consisted of as original basic part them in three dimensions.Because its yardstick has approached light wavelength, add that it has the special effects on large surface, therefore the characteristic that this class material shows, for example fusing point, magnetic, optics, heat conduction, conductive characteristic etc., often be different from the character that this material shows when integrality.At present, nano material has been widely used in chemistry, biomedicine, environmental monitoring, food, medicine and the field such as military.
Chiral molecules is the optically active substance that a class can make linearly polarized light deflect.On its structure, four electronics are arranged on the outermost layer of a carbon atom, if while with singly-bound, becoming key, can form four covalent single bonds, covalent bond points to tessarace, when four groups of carbon atom connection are different, four groups that are connected with this carbon atom have two kinds of space connected modes, and these two kinds of modes are as the right-hand man, " mirror image " each other, also can not be superimposed together fully, therefore, such molecule is called " chiral molecules ".Between the molecule of this formation chirality relation, a side is called to the opposing party's " enantiomter ".Many organic compound molecules have " enantiomter ", are to have " chirality ".Along with appearance and the fast development of nano material, the chirality research in the nanometer field progressively becomes the focus of people's research.
At present, the assembling of chirality nano material be mainly use multiple chiral molecules (as, protein, polypeptide, DNA etc.) nanomaterial assembly is become to not isomorphism type.Under the effect of linearly polarized light, chiral molecules and nano particle generation plasma resonance, the chiral signal of chiral molecules itself (200-350nm) will pass to nano particle, and circular dichroism spectra shows as at the plasma resonance wavelength place of nano material obvious circular dichroism signal.The chirality source of nanometer package assembly is the study hotspot in this field always, someone thinks that the chirality transmission of chiral molecules is the main cause that nano material produces chirality, the others thinks the factor impact of nano material itself, so, use achiral molecule assembled chiral nano material to become the committed step of this problem.
Summary of the invention
The purpose of this invention is to provide a kind of preparation method based on the little molecule assembled chiral of achirality nano material.
Technical scheme of the present invention: a kind of preparation method based on the little molecule assembled chiral of achirality nano material, comprise the preparation, sodium chloride of different size 10nm and 25nm golden nanometer particle control the assembling of chiral gold nano material, sodium chloride concentration on the particle diameter of the impact of nano material chirality, golden nanometer particle on the impact of chiral signal, golden nanometer particle assembling product is carried out to optics and structural characterization.
Processing step:
(1) the 10nm golden nanometer particle is synthetic
The 10nm golden nanometer particle adopts tannic acid and trisodium citrate reduction method to synthesize;
(2) the 25nm golden nanometer particle is synthetic
The 25nm golden nanometer particle adopts citrate three sodium one-step method reduction gold chloride method synthetic;
(3) assembling of 10-25nm gold nanoparticle dimer
The synthetic 25nm golden nanometer particle of the 10nm golden nanometer particle that step (1) is synthetic and step (2) according to etc. molar concentration mix, in final concentration 5mM sodium chloride solution, reaction is 1 hour;
(4) impact of sodium chloride concentration on the nano material chirality
The synthetic 25nm golden nanometer particle of the 10nm golden nanometer particle that step (1) is synthetic and step (2) according to etc. after molar concentration mixes, equal-volume takes out 10 parts in the PCR pipe, then adds successively final concentration 0mM, 0.5 mM, 1.0 mM, 1.5 mM, 2.0mM, 2.5 mM, 5 mM, 10 mM, 15mM, the sodium chloride solution of 20 mM, the standing reaction of room temperature 1 hour;
(5) assembling of 10-10nm gold nanoparticle dimer
Add the standing reaction of final concentration 5mM sodium chloride solution room temperature 1 hour in the synthetic 10nm golden nanometer particle of step (1);
(6) assembling of 25-25nm gold nanoparticle dimer
Add the standing reaction of final concentration 5mM sodium chloride solution room temperature 1 hour in the synthetic 25nm golden nanometer particle of step (2);
(7) the golden nanometer particle assembling product of step (3), (4), (5) and (6) carried out to optics and structural characterization.
Concrete steps are:
(1) the 10nm golden nanometer particle is synthetic
The synthetic method of 10nm golden nanometer particle is: in clean there-necked flask, add 79mL ultra-pure water and 1mL mass concentration 1% gold chloride as A liquid; Separately get the ampoule of a cleaning, add 4mL mass concentration 1% trisodium citrate, 0.1mL mass concentration 1% tannic acid, 0.1mL 25mM potash, the 15.8mL ultra-pure water is as B liquid.A, B liquid all are heated to 60 ℃, then under high-speed stirred, B liquid are added rapidly in A liquid, and mixed liquor continues to stir 30 minutes to forming dark red solution under 60 ℃.Then vlil is formed to shiny red solution in 2 minutes.Last cool to room temperature forms the stable golden nanometer particle of citric acid, and transmission electron microscope shows that average grain diameter is 10nm.
(2) the 25nm golden nanometer particle is synthetic
The synthetic method of 25nm golden nanometer particle is: in clean there-necked flask, add the 47.5mL ultra-pure water, add 2.5mL mass concentration 0.2% chlorauric acid solution, stir and be heated to boiling, add 0.85mL mass concentration 1% citric acid three sodium solution after 10 minutes, solution from colourless become redness, stop heating, continue to stir 15 minutes; Transmission electron microscope shows that average grain diameter is 25nm.
(3) assembling of 10-25nm gold nanoparticle dimer
Get 10 nm golden nanometer particle 10nM 50 μ L prepared by step (1) in the A pipe, get 25nm golden nanometer particle 5nM 100 μ L prepared by step (2) in the B pipe, two pipes mix, then add 0.5M 1.5 μ L NaCl, mix the standing reaction of room temperature 1 hour.
(4) impact of sodium chloride concentration on the nano material chirality
Get 10 nm golden nanometer particle 10nM 250 μ L prepared by step (1) in the A pipe, get 25nm golden nanometer particle 5nM 500 μ L prepared by step (2) in the B pipe, two pipes mix.Get 10 PCR pipe number consecutively 1-10, place the 70 μ L mixed liquors that pipette in every pipe, add successively 0.1M NaCl 0 μ L, 0.35 μ L, 0.7 μ L, 10.5 μ L, 1.4 μ L, 1.75 μ L, 3.5 μ L, 7 μ L, 10.5 μ L and 14 μ L, make the final concentration of sodium chloride in the 1-10 pipe be followed successively by 0mM, 0.5 mM, 1.0 mM, 1.5 mM, 2.0mM, 2.5 mM, 5 mM, 10 mM, 15mM and 20 mM; The standing reaction of room temperature 1 hour.
(5) assembling of 10-10nm gold nanoparticle dimer
Get 10 nm golden nanometer particle 10nM 100 μ L prepared by step (1) and manage in A, then add 0.5M 1.0 μ L NaCl, mix the standing reaction of room temperature 1 hour.
(6) assembling of 25-25nm gold nanoparticle dimer
Get 25 nm golden nanometer particle 5nM 100 μ L prepared by step (2) and manage in B, then add 0.5M 1.0 μ L NaCl, mix the standing reaction of room temperature 1 hour.
(7) the golden nanometer particle assembling product of step (3), (4), (5) and (6) carried out to optics and structural characterization
The above-mentioned product assembled is carried out to the centrifugal 10min of 7000r/min, abandon supernatant, precipitation heavily is distributed in the ultra-pure water of 120 μ L, and ultrapure washing once.Electronic Speculum characterizes: the sample drop of the above-mentioned processing of 7 μ L is added on the copper mesh of carbon film support, carries out drying under infrared lamp.The projection Electronic Speculum adopts the Electronic Speculum of JEOL JEM-2100 model, and its accelerating potential is 200 kV, as shown in Figure 1 and Figure 4.
Circular dichroism spectra characterizes: get the system 100 μ L that assemble in cuvette, with ultra-pure water, do blank.The circular dichroism spectrometer adopts French Bio-Logic MOS-450+SMF-300, as shown in Figures 2 and 3.
Beneficial effect of the present invention: along with the fast development of nano material, the research of chirality nanomaterial assembly body has become the hot issue that people pay close attention to.Utilize achiral molecule assembled chiral nanostructured to have great significance for the research of nano material chirality origin.
The accompanying drawing explanation
Fig. 1 different size nano particle is assembled dimeric Electronic Speculum figure: A, 10-10nm gold nanoparticle dimer; B, 10-25nm gold nanoparticle dimer; C, 25-25nm gold nanoparticle dimer.
Fig. 2 different size nano particle is assembled dimeric circular dichroism spectra.A, 10-10nm gold nanoparticle dimer; B, 10-25nm gold nanoparticle dimer; C, 25-25nm gold nanoparticle dimer.
The circular dichroism spectra that adds variable concentrations sodium chloride assembly in Fig. 3 10nm and 25nm golden nanometer particle mixture.The final concentration of sodium chloride is respectively 0mM, 0.5mM, 1mM, 1.5mM, 2mM, 2.5mM, 5mM, 10mM, 15mM, 20mM.
The Electronic Speculum figure that adds variable concentrations sodium chloride assembly in Fig. 4 10nm and 25nm golden nanometer particle mixture.In the A-J sample, the final concentration of sodium chloride is respectively 0mM, 0.5mM, 1mM, 1.5mM, 2mM, 2.5mM, 5mM, 10mM, 15mM, 20mM.
The specific embodiment
Embodiment 1
(1) the 10nm golden nanometer particle is synthetic
The synthetic method of 10nm golden nanometer particle is: in clean there-necked flask, add 79mL ultra-pure water and 1mL mass concentration 1% gold chloride as A liquid; Separately get the ampoule of a cleaning, add 4mL mass concentration 1% trisodium citrate, 0.1mL mass concentration 1% tannic acid, 0.1mL 25mM potash, the 15.8mL ultra-pure water is as B liquid.A, B liquid all are heated to 60 ℃, then under high-speed stirred, B liquid are added rapidly in A liquid, and mixed liquor continues to stir 30 minutes to forming dark red solution under 60 ℃.Then vlil is formed to shiny red solution in 2 minutes.Last cool to room temperature forms the stable golden nanometer particle of citric acid, and transmission electron microscope shows that average grain diameter is 10nm.
(2) the 25nm golden nanometer particle is synthetic
The synthetic method of 25nm golden nanometer particle is: in clean there-necked flask, add the 47.5mL ultra-pure water, add 2.5mL mass concentration 0.2% chlorauric acid solution, stir and be heated to boiling, add 0.85mL mass concentration 1% citric acid three sodium solution after 10 minutes, solution from colourless become redness, stop heating, continue to stir 15 minutes; Transmission electron microscope shows that average grain diameter is 25nm.
(3) assembling of 10-25nm gold nanoparticle dimer
10 nm golden nanometer particles prepared by step (1) are got 10nM 50 μ L in the A pipe, 25nm golden nanometer particle prepared by step (2) is got 5nM 100 μ L in the B pipe, and two pipes mix, then add 0.5M 1.5 μ L NaCl, mix the standing reaction of room temperature 1 hour.
(4) impact of sodium chloride concentration on the nano material chirality
10 nm golden nanometer particles prepared by step (1) are got 10nM 250 μ L in the A pipe, and 25nm golden nanometer particle prepared by step (2) is got 5nM 500 μ L in the B pipe, and two pipes mix.Get 10 PCR pipe number consecutively 1-10, every pipe is got 70 μ L mixed liquors, adds successively 0.1M NaCl 0 μ L, 0.35 μ L, 0.7 μ L, 10.5 μ L, 1.4 μ L, 1.75 μ L, 3.5 μ L, 7 μ L, 10.5 μ L and 14 μ L, make the final concentration of sodium chloride in the 1-10 pipe be followed successively by 0mM, 0.5 mM, 1.0 mM, 1.5 mM, 2.0mM, 2.5 mM, 5 mM, 10 mM, 15mM and 20 mM.The standing reaction of room temperature 1 hour.
(5) assembling of 10-10nm gold nanoparticle dimer
10 nm golden nanometer particles prepared by step (1) are respectively got 10nM 100 μ L and are managed in A, then add 0.5M 1.0 μ L NaCl, mix the standing reaction of room temperature 1 hour.
(6) assembling of 25-25nm gold nanoparticle dimer
25 nm golden nanometer particles prepared by step (2) are respectively got 5nM 100 μ L and are managed in B, then add 0.5M 1.0 μ L NaCl, mix the standing reaction of room temperature 1 hour.
(7) the golden nanometer particle assembling product of step (3), (4), (5) and (6) carried out to optics and structural characterization
The above-mentioned product assembled is carried out to the centrifugal 10min of 7000r/min, abandon supernatant, precipitation heavily is distributed in the ultra-pure water of 120 μ L, and ultrapure washing once.Electronic Speculum characterizes: the sample drop of the above-mentioned processing of 7 μ L is added on the copper mesh of carbon film support, carries out drying under infrared lamp.The projection Electronic Speculum adopts the Electronic Speculum of JEOL JEM-2100 model, and its accelerating potential is 200 kV, as shown in Figure 1 and Figure 4.
Circular dichroism spectra characterizes: get the system 100 μ L that assemble in cuvette, with ultra-pure water, do blank.The circular dichroism spectrometer adopts French Bio-Logic MOS-450+SMF-300, as shown in Figures 2 and 3.
Claims (2)
1. the preparation method based on the little molecule assembled chiral of achirality nano material is characterized in that: the preparation of 10nm and 25nm golden nanometer particle, sodium chloride control the assembling, sodium chloride concentration of chiral gold nano material on the particle diameter of the impact of nano material chirality, golden nanometer particle on the impact of chiral signal, golden nanometer particle assembling product is carried out to optics and structural characterization; Step is:
(1) the 10nm golden nanometer particle is synthetic
The 10nm golden nanometer particle adopts tannic acid and trisodium citrate reduction method to synthesize: in clean there-necked flask, add 79mL ultra-pure water and 1mL 1% gold chloride as A liquid; Separately get the ampoule of a cleaning, add 4mL 1% trisodium citrate, 0.1mL 1% tannic acid, 0.1mL 25mM potash, the 15.8mL ultra-pure water is as B liquid; A, B liquid all are heated to 60 ℃, then under high-speed stirred, B liquid is added rapidly in A liquid, mixed liquor continues to stir 30 minutes to forming dark red solution under 60 ℃, then vlil is formed to shiny red solution in 2 minutes, last cool to room temperature forms the stable golden nanometer particle of citric acid, and transmission electron microscope shows that average grain diameter is 10nm;
(2) the 25nm golden nanometer particle is synthetic
The 25nm golden nanometer particle adopts trisodium citrate one-step method reduction gold chloride method synthetic: in clean there-necked flask, add the 47.5mL ultra-pure water, add 2.5mL 0.2% chlorauric acid solution, stir and be heated to boiling, add 0.85mL 1% citric acid three sodium solution after 10 minutes, solution from colourless become redness, stop heating, continue to stir 15 minutes; Transmission electron microscope shows that average grain diameter is 25nm;
(3) assembling of 10-25nm gold nanoparticle dimer
The synthetic 25nm golden nanometer particle of the 10nm golden nanometer particle that step (1) is synthetic and step (2) mixes according to molar concentrations such as final concentrations, and in final concentration 5mM sodium chloride solution, reaction is 1 hour;
(4) impact of sodium chloride concentration on the nano material chirality
After the synthetic 25nm golden nanometer particle of the 10nm golden nanometer particle that step (1) is synthetic and step (2) mixes according to molar concentrations such as final concentrations, equal-volume takes out 10 parts in the PCR pipe, then adds successively final concentration 0mM, 0.5 mM, 1.0 mM, 1.5 mM, 2.0mM, 2.5 mM, 5 mM, 10 mM, 15mM, the sodium chloride solution of 20 mM, the standing reaction of room temperature 1 hour;
(5) assembling of 10-10nm gold nanoparticle dimer
Add the standing reaction of final concentration 5mM sodium chloride solution room temperature 1 hour in the synthetic 10nm golden nanometer particle of step (1);
(6) assembling of 25-25nm gold nanoparticle dimer
Add the standing reaction of final concentration 5mM sodium chloride solution room temperature 1 hour in the synthetic 25nm golden nanometer particle of step (2);
(7) the golden nanometer particle assembling product of step (3), (4), (5) and (6) carried out to optics and structural characterization.
2. the preparation method based on the little molecule assembled chiral of achirality nano material according to claim 1 is characterized in that:
The assembling of described step (3) 10-25nm gold nanoparticle dimer:
Get 10 nm golden nanometer particle 10nM 50 μ L prepared by step (1) in the A pipe, get 25nm golden nanometer particle 5nM 100 μ L prepared by step (2) in the B pipe, two pipes mix, then add 0.5M 1.5 μ L NaCl, mix the standing reaction of room temperature 1 hour;
The impact of described step (4) sodium chloride concentration on the nano material chirality:
Get 10 nm golden nanometer particle 10nM 250 μ L prepared by step (1) in the A pipe, get 25nm golden nanometer particle 5nM 500 μ L prepared by step (2) in the B pipe, two pipes mix; Get 10 PCR pipe number consecutively 1-10, place the 70 μ L mixed liquors that pipette in every pipe, add successively 0.1M NaCl 0 μ L, 0.35 μ L, 0.7 μ L, 1.05 μ L, 1.4 μ L, 1.75 μ L, 3.5 μ L, 7 μ L, 10.5 μ L and 14 μ L, make the final concentration of sodium chloride in the 1-10 pipe be followed successively by 0mM, 0.5 mM, 1.0 mM, 1.5 mM, 2.0mM, 2.5 mM, 5 mM, 10 mM, 15mM, 20 mM, the standing reaction of room temperature 1 hour;
The assembling of described step (5) 10-10nm gold nanoparticle dimer
Get 10 nm golden nanometer particle 10nM 100 μ L prepared by step (1) and manage in A, then add 0.5M 1.0 μ L NaCl, mix the standing reaction of room temperature 1 hour;
The assembling of described step (6) 25-25nm gold nanoparticle dimer
Get 25 nm golden nanometer particle 5nM 100 μ L prepared by step (2) and manage in B, then add 0.5M 1.0 μ L NaCl, mix the standing reaction of room temperature 1 hour;
Described step (7) is carried out optics and structural characterization to the golden nanometer particle assembling product of step (3), (4), (5) and (6):
Optical characterisation: the product assembled is carried out to the centrifugal 10min of 7000r/min, abandon supernatant, precipitation heavily is distributed in the ultra-pure water of 120 μ L, and once, precipitation heavily is distributed in the ultra-pure water of 120 μ L again in ultrapure washing; The sample drop of getting the above-mentioned dispersion of 7 μ L is added on the copper mesh of carbon film support, carries out drying under infrared lamp; The projection Electronic Speculum adopts the Electronic Speculum of JEOL JEM-2100 model, and its accelerating potential is 200 kV;
The circular dichroism spectra structural characterization: get the system 100 μ L that assemble in cuvette, with ultra-pure water, do blank, the circular dichroism spectrometer adopts French Bio-Logic MOS-450+SMF-300.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034928.7A CN103058133B (en) | 2013-01-30 | 2013-01-30 | Preparation method for assembling chiral nanometer material based on achiral micro molecules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034928.7A CN103058133B (en) | 2013-01-30 | 2013-01-30 | Preparation method for assembling chiral nanometer material based on achiral micro molecules |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103058133A CN103058133A (en) | 2013-04-24 |
| CN103058133B true CN103058133B (en) | 2014-01-08 |
Family
ID=48101077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310034928.7A Active CN103058133B (en) | 2013-01-30 | 2013-01-30 | Preparation method for assembling chiral nanometer material based on achiral micro molecules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103058133B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106112006B (en) * | 2016-07-22 | 2019-10-08 | 国家纳米科学中心 | A kind of gold nanoparticle aqueous solution and its preparation method and application |
| CN106290166A (en) * | 2016-09-20 | 2017-01-04 | 江南大学 | A kind of circular dichroism real-time detection method of intracellular ATP |
| CN106513704B (en) * | 2016-11-29 | 2019-07-05 | 中国科学院生态环境研究中心 | Nano silver, preparation method and the antibacterial agent of controlled release silver ion |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7655474B2 (en) * | 2002-07-29 | 2010-02-02 | The United States Of America As Represented By The Secretary Of The Navy | Trioxyethylene gold nanoclusters functionalized with a single DNA |
| GB0321937D0 (en) * | 2003-09-19 | 2003-10-22 | Univ Liverpool | Nanoparticle conjugates and method of production thereof |
| CN102127445B (en) * | 2010-12-23 | 2013-02-27 | 江南大学 | Preparation method of self-assembled nano material provided with chiral signal |
| CN102556959B (en) * | 2011-12-30 | 2014-04-16 | 中国科学院苏州纳米技术与纳米仿生研究所 | Preparation method of metal nanoparticle dimer |
-
2013
- 2013-01-30 CN CN201310034928.7A patent/CN103058133B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103058133A (en) | 2013-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tao et al. | Carbonized polymer dots: a brand new perspective to recognize luminescent carbon-based nanomaterials | |
| Li et al. | Supra-(carbon nanodots) with a strong visible to near-infrared absorption band and efficient photothermal conversion | |
| Chhabra et al. | Synthesis and spectroscopic studies of functionalized graphene quantum dots with diverse fluorescence characteristics | |
| Dang et al. | Large-scale ultrasonic fabrication of white fluorescent carbon dots | |
| Zhang et al. | Graphene quantum dots: an emerging material for energy-related applications and beyond | |
| Lines | Nanomaterials for practical functional uses | |
| Wang et al. | Helically grooved gold nanoarrows: controlled fabrication, superhelix, and transcribed chiroptical switching | |
| CN102382816B (en) | Preparation method for chiral self-assembly material | |
| JP6810268B2 (en) | Method for producing a solution containing gold nanoclusters to which a ligand is bound | |
| CN102426230B (en) | Method for detecting aflatoxin by asymmetrical gold nanoparticle dimer immunosensor | |
| Kouloumpis et al. | Graphene/carbon dot hybrid thin films prepared by a modified langmuir–schaefer method | |
| Guo et al. | Color-switchable, emission-enhanced fluorescence realized by engineering C-dot@ C-dot nanoparticles | |
| CN103058133B (en) | Preparation method for assembling chiral nanometer material based on achiral micro molecules | |
| CN103468810B (en) | Method for detecting DNA (Deoxyribose Nucleic Acid) based on chiral nano material | |
| CN103341623B (en) | Method for preparing gold nanorod assemblies induced by static electricity acting force | |
| Joshi et al. | Graphene quantum dots-from emergence to nanotheranostic applications | |
| CN103103275B (en) | Method for detecting concentration of target DNA (deoxyribonucleic acid) based on chiral tetrahedron conformation change | |
| Yang et al. | Fabrication of Carbon‐Based Quantum Dots via a “Bottom‐Up” Approach: Topology, Chirality, and Free Radical Processes in “Building Blocks” | |
| CN102992390A (en) | Method for preparing nano-zinc oxide sol and zinc oxide submicron spheres | |
| Liu et al. | Preparation and characterization of TiO2 nanofibers via using polylactic acid as template | |
| CN103194221B (en) | Method for preparing water-soluble fluorescent silicon nanoparticle by utilizing microwave radiation | |
| Shezad et al. | Carbon nanotubes incorporated Z-scheme assembly of AgBr/TiO2 for photocatalytic hydrogen production under visible light irradiations | |
| Ye et al. | Dual-Responsive Fe3O4@ Polyaniline Chiral Superstructures for Information Encryption | |
| Xu et al. | Reversible inversion of circularly polarized luminescence in a coassembly supramolecular structure with achiral sulforhodamine B Dyes | |
| CN104549374A (en) | Cadmium selenide flower-shaped microspheres prepared from nanosheets with hydrophilic surfaces as well as preparation method and application of microspheres |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 214016 Jiangsu city of Wuxi Province District Liangxi No. 898 South Road 7 layer beam Creek area of food science and Technology Park Patentee after: Jiangnan University Address before: Lihu Avenue Binhu District 214122 Jiangsu city of Wuxi province Jiangnan University No. 1800 Patentee before: Jiangnan University |