CN107167834A - Detect SERS active-substrate of thermoneutron radiation and its preparation method and application - Google Patents
Detect SERS active-substrate of thermoneutron radiation and its preparation method and application Download PDFInfo
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Abstract
The invention discloses the SERS active-substrate of detection thermoneutron radiation, the SERS active-substrate of the detection thermoneutron radiation is to modify the surface reinforced Raman active substrate that molecule is responded with thermoneutron radiation to amination slide surface and the substrate that obtains.The invention also discloses the preparation method and application of the SERS active-substrate of detection thermoneutron radiation.The present invention is effectively utilized the characteristic of nano material, is detected using Raman spectrometer, significantly reduces testing cost, and the present invention has the advantages that cost is low, quick, easy, sensitive and favorable repeatability.The probe of molecule is responded based on surface modification thermoneutron radiation, to thermal neutron sensitivity response, SERS changes is produced, can be achieved to thermoneutron radiation quick detection.
Description
Technical field
The invention belongs to SERS field of sensing technologies, and in particular to the SERS active-substrate and its system of detection thermoneutron radiation
Preparation Method and application.
Technical background
Neutron may carry the electric charge for being difficult to detect of very little, it can be regarded as neutral particle, its quality is bigger
In proton.Ultrafast neutron：Energy is between 10MeV~50MeV.Wherein：
Fast neutron：Energy is between 0.5MeV~10MeV.
Intermediate neutron：Energy is between 1keV~0.5MeV.
Slow neutron：Energy is between 0~1keV, including epithermal neutron, thermal neutron, cold neutrons and resonance neutron.Wherein can
Amount is about that 0.025eV thermal neutron is referred to as thermal neutron.Neutron irradiation flourishes with nuclear technology, gradually comes into human lives
In.One side nuclear technology is used for the radiotherapy of cancer, generate electricity etc.；On the other hand, nuclear radiation is deposited to organism and the Nature
In serious pollution and threat.Therefore control to its accurate detection and effectively most important.
Measure thermal neutron it is most suitably used be boron trifluoride proportional counter, casing pack10BF3Gas, commonly referred to as10BF3
Counting tube.Neutron enters after counting tube, occurs (n, α) nuclear reaction with boron；In addition,10The scintillator of boron scintillation counter is ZnS
(Ag) add boron compound, utilize (n, α) nuclear reaction to detect neutron；Secondly also have3He counting tubes, are the core using neutron and helium
Reaction (n, p) principle is made.
SERS (SERS) is as a kind of spectral analysis technique for having a development potentiality, in chemistry, physics, life
The various aspects such as thing, medical science, environmental monitoring, public safety have obtained certain application.Non-toxic, lossless, sensitivity is high, can weigh
Renaturation is its big advantage by force.Therefore, have with reference to Raman technology in terms of the evaluation of thermoneutron radiation process it is very big before
Scape.
The content of the invention
Goal of the invention：The technical problems to be solved by the invention there is provided the SERS active-substrate of detection thermal neutron.
The technical problem of the invention also to be solved there is provided the preparation method of the SERS active-substrate of detection thermal neutron.
The technical problem of the invention also to be solved there is provided the SERS active-substrate of detection thermal neutron in detection thermal neutron
Application in terms of radiation.
The technical problem of the invention also to be solved there is provided a kind of material for detecting thermoneutron radiation.
The technical problem of the invention finally to be solved there is provided a kind of method for detecting thermoneutron radiation.
Technical scheme：In order to solve the above-mentioned technical problem, it is the invention provides the SERS active-substrate of detection thermal neutron
The surface reinforced Raman active substrate of molecule is responded with thermoneutron radiation.
Specifically, being that the above-mentioned surface reinforced Raman active substrate modification for responding molecule with thermoneutron radiation is arrived into amino
Glass carrier surface and the substrate obtained.
Wherein, above-mentioned thermoneutron radiation response molecule is 3- sulfydryl benzene10Boric acid, 4- sulfydryl benzene10Boric acid, 3- aminobenzenes10Boron
Acid or 4- aminobenzenes10One or more in boric acid.
Wherein, above-mentioned surface reinforced Raman active substrate is the compound liquid phase of gold, silver, the single-element of copper or multiple element
Suspension or by gold, silver, the single-element of copper or multiple element be combined liquid phase suspension liquid modification obtained to surface of solid phase carriers
The solid phase surface enhancing Raman active substrate obtained.
Wherein, above-mentioned surface reinforced Raman active substrate is the Jenner in gold nanoshell probe, the gold nanoshell probe
A diameter of 100nm~the 300nm of rice shell.
Preferably, a diameter of 165~175nm of gold nanoshell in above-mentioned gold nanoshell probe.
Present invention also includes the preparation method of the SERS active-substrate of above-mentioned detection thermal neutron, including following step
Suddenly：
1) preparation of surface reinforced Raman active substrate：The surface reinforced Raman active substrate be gold, silver, copper it is single
Element or the compound liquid phase suspension liquid of multiple element or the liquid phase suspension for being combined gold, silver, the single-element of copper or multiple element
Liquid modification obtains solid phase surface enhancing Raman active substrate to surface of solid phase carriers；
2) preparation of the surface reinforced Raman active substrate of detection thermoneutron radiation：In surface reinforced Raman active substrate
There is thermoneutron radiation to respond molecule for modification, obtain the SERS active-substrate of detection thermoneutron radiation.
Specifically, the preparation method of the active substrate of the gold nanoshell probe based on detection thermal neutron, including following step
Suddenly：
1) preparation of gold nanoshell；
2) preparation of probe：In gold nanoshell surface modification there is thermoneutron radiation to respond molecule, obtain detection thermal neutron
The gold nanoshell probe of radiation；
3) preparation of the SERS active-substrate of the gold nanoshell probe of detection thermoneutron radiation：Thermoneutron radiation will be detected
Gold nanoshell probe modification is cleaned to amination slide surface, and fully, prepares the Jenner of stand-by detection thermoneutron radiation
The SERS active-substrate of rice shell probe.
Specifically, the preparation method of the SERS active-substrate of the gold nanoshell probe of detection thermoneutron radiation is：Prepare not
With the suspension of the gold nanoshell probe with thermoneutron radiation response molecule of concentration, respectively by various concentrations probe suspension
Respectively with amidized slide, after being incubated altogether, after fully being cleaned with deionized water, spontaneously dry, then carry out SERS detections,
Most stable of one group of the ratio of selection SERS feature peak intensities is used as optimal condition.
Wherein, the ratio of this feature peak intensity is 1574cm-1With 1585cm-1Locate the ratio of intensity.
Wherein, above-mentioned thermoneutron radiation response molecule is 3- sulfydryl benzene10Boric acid, 4- sulfydryl benzene10Boric acid, 3- aminobenzenes10Boron
Acid or 4- aminobenzenes10One or more in boric acid.
Present invention also includes the SERS active-substrate of above-mentioned detection thermal neutron in terms of thermoneutron radiation is detected
Using.
Present invention also includes a kind of material for detecting thermoneutron radiation, and the material includes described detection thermal neutron
The SERS active-substrate of radiation.
Present invention also includes a kind of method for detecting thermoneutron radiation, and the detection method is by described detection heat
The SERS active-substrate of neutron irradiation is exposed to the radiating aperture slowing down and gamma-rays of paraffin and lead to neutron emitter
Absorption after neutron source aperture in, take out determine its SERS, according to the ratio of characteristic spectral line intensity, you can
To calculate the intensity or dosage that obtain neutron irradiation.
Wherein, above-mentioned environment to be measured is radiation different time or radiation different distance in neutron emitter.
Wherein, the above-mentioned method based on SERS detection neutron irradiation processes is：Obtain substrate SERS spectrograms and probe
SERS spectrograms, and contrasting proves it in the absence of otherness；According to the ratio of feature peak intensity in the substrate SERS spectrograms and heat
Neutron irradiation time and the corresponding relation of radiation length, carry out data processing, and summarize the SERS spectrogram phases of substrate during this
To the relation of intensity rate.
Operation principle of the present invention：The present invention utilizes the sensitive signaling molecule of the thermoneutron radiation with obvious SERS signal,
Modified on gold nanoshell surface, obtain probe.A diameter of 165~175nm of gold nanoshell, diameter is within the range
Gold nanoshell, has strong resonance to 785nm laser.Wherein, based on surface modification 4- sulfydryl benzene10The probe of boric acid, to heat
Neutron irradiation sensitivity response, produces SERS changes, the evaluation to thermoneutron radiation intensity can be achieved；Based on this principle, then tie
The cheap and quick preparation of SERS active-substrate is closed, both combine, and realize the inspection of the thermoneutron radiation of quick and high performance-price ratio
Survey.By the evaluation to different radiated times and radiation length, a series of change of the relative intensity of SERS characteristic peaks is obtained, it is real
Now to the detection of neutron radiative process.
Beneficial effect：Relative to prior art, the present invention has advantages below：
(1) present invention utilizes gold nanoshell probe after the surface-assembled of function glass carrier, with the thermal neutron given off
Interaction, with the change of time and sample, significant change occurs for SERS signal, realizes the spectrum detection method of thermal neutron detection
Evaluation, the radiating aperture slowing down to neutron emitter and gamma-ray absorption by paraffin and lead, so as to improve thermal neutron
The accuracy of detection.
(2) present invention is effectively utilized the characteristic of nano material, is detected, significantly reduced using Raman spectrometer
Testing cost, the present invention has the advantages that cost is low, quick, easy, sensitive and favorable repeatability.Based on surface modification thermal neutron
The probe of rdaiation response molecule, to thermal neutron sensitivity response, produces SERS changes, the evaluation radiated to heating seed can be achieved；Base
In this principle, in conjunction with the cheap and quick preparation of SERS active-substrate, both combine, and realize quick and high performance-price ratio
The detection of neutron irradiation.By the evaluation to different radiated times and radiation length, a series of the relative of SERS characteristic peaks is obtained
The change of intensity, realizes the detection to neutron radiative process.
Brief description of the drawings
Fig. 1 shows that the SERS active-substrate based on gold nanoshell probe detects the schematic diagram of thermoneutron radiation.Explained in figure
The preparation process and detection process of substrate are stated；
Fig. 2 shows the scanning electron microscope diagram piece of prepared golden shell, the scanning electron microscope (SEM) photograph of constructed substrate, thermal neutron
Respond the Raman phenogram of SERS substrate preparation process, prepared base Evaluation for Uniformity figure；
Fig. 3 show the probe based on gold nanoshell substrate SERS spectrograms and idealization radiation after probe by completely anti-
SERS spectrogram comparison diagrams after answering；
Fig. 4 show thermal neutron detection substrate radiated in neutron emitter the SERS testing results after different time and
The change line chart of correspondence relative intensity；
Fig. 5 shows that thermal neutron detects substrate different radiation lengths, the SERS after radiating 20 minutes in neutron emitter
The change line chart of testing result and correspondence relative intensity；
Fig. 6 show the probe molecule based on silver nanoparticle shell substrate SERS spectrograms and idealization radiation after probe it is complete
SERS spectrogram comparison diagrams after full response；
Fig. 7 show thermal neutron detection suspension radiated in neutron emitter the SERS testing results after different time with
And the change line chart of correspondence relative intensity.
Embodiment
The gold nanoshell of embodiment 1 is synthesized and solid phase surface strengthens constructing for Raman active substrate
1st, the synthesis of gold nanoshell：
The SiO for being about first 110nm in diameter2Surface carries out amination modification and adsorbs 2-3nm gold nano grain shape
Into composite particles, the composite particles formed are gold nanoshell growth precursors thing；Again using hydrogen peroxide as reducing agent, in precursor
Gold chloride is constantly reduced under the catalysis on surface and its surface is constantly deposited on, so as to form certain thickness complete gold nano
Shell.Then 3000rpm centrifuges 10min, abandons supernatant, collects precipitation, and resuspension obtains gold nanoshell suspension (OD700nm=1.0), keep away
Light is saved backup.A diameter of 165~175nm of the gold nanoshell, the gold nanoshell of diameter within the range, swashs to 785nm
Light has strong resonance (in addition to the present embodiment, other method can also prepare the nano material).
2nd, solid phase surface strengthens the preparation of Raman active substrate：
The volumetric flask that a volume is 100mL is taken, 15.4g 4- sulfydryl benzene is added thereto10Boric acid is dissolved in 100mL's
In 10% ethanol water, ultrasound is mixed.Common commercial glass carrier is cleaned three times, every time 30 minutes with ethanol；Afterwards
After drying, the ethanol solution of 1% (v/v) aminopropyl triethoxysilane is immersed into, after handling 24 hours, then ethanol is used
Cleaning three times.Then dry, obtain amino glass carrier, by the amino glass carrier be cut into glass cutter area be 0.5cm ×
0.5cm fritter.Take out 10 μ L (OD700nmThe gold nanoshell suspension of=above-mentioned preparation 2.0), it is 0.5cm to be added dropwise in area
× 0.5cm amino glass carrier, substrate constructs completion after 30 minutes.By the substrate, every piece is individually positioned in equipped with 1mL 4- mercaptos
Base benzene10In the centrifuge tube of boric acid solution, soak 24 hours.Slide is taken out afterwards, and 3 are respectively washed with deionized water and ethanol
It is secondary, obtain active substrate.
Proof-Of Principle：
The volumetric flask that a volume is 100mL is taken, 13.2g benzenethiol sodium is added thereto and is dissolved in the 100mL aqueous solution,
Ultrasound is mixed.Common commercial glass carrier is cleaned three times, every time 30 minutes with ethanol；After drying afterwards, 1% is immersed into
(v/v) after the ethanol solution of aminopropyl triethoxysilane, processing 24 hours, then cleaned three times with ethanol.Then dry, obtain
Amino glass carrier is obtained, the amino glass carrier is cut into the fritter that area is 0.5cm × 0.5cm with glass cutter.Take out 10 μ L
(OD700nm=gold nanoshell suspension 2.0), is added dropwise in the amino glass carrier that area is 0.5cm × 0.5cm, after 30 minutes
Substrate constructs completion.By the substrate, every piece is individually positioned in the centrifuge tube equipped with 1mL benzenethiol sodium solutions, soaks 24 hours.
Slide is taken out afterwards, is respectively washed with deionized water and ethanol 3 times, is obtained the substrate of benzenethiol sodium.By contrasting benzenethiol
Sodium and 4- sulfydryl benzene10The SERS spectrograms contrast of boric acid, the feasibility of judgment experiment.Concrete outcome is as shown in Figure 3.
The test experience of the different neutron irradiation times of embodiment 2
The method of the synthesis reference embodiment 1 of neutron irradiation response substrate, the present embodiment is repeated no more.
Solid phase surface strengthens the evaluation of Raman active substrate：Substrate is attached to paraffin and lead packaged block rear, is placed in
In radiant tunnel, the substrate that same treatment is obtained is placed in the same position in duct, the different times are radiated every time.Radiated time
Respectively：10 seconds, 20 seconds, 40 seconds, 60 seconds, 120 seconds, 180 seconds, 300 seconds, 600 seconds, 1200 seconds.
Experimental result：Record 10 test points that each substrate is randomly selected respectively using surface-enhanced Raman spectroscopy
SERS spectra, asks for averaged spectrum, and records and be depicted as integration map, as shown in Figure 4 A.Blank group is corresponding in turn to from top to bottom,
10 seconds, 20 seconds, 40 seconds, 60 seconds, 120 seconds, 180 seconds, 300 seconds, 600 seconds, 1200 seconds groups.And according to spectrum change situation, choose
Reference peak 1574cm-1With 1585cm-1The relative ratio of intensity draw line chart as shown in Figure 4 B.Can from result
Go out, under different radiated times, the 4- sulfydryl benzene of natural component10The content that boric acid raying is partially converted into benzenethiol is different.
The result intuitively can be found out from spectrogram and line chart.In addition, when radiated time reach 300 seconds and after, spectrum
No longer occurs significant change, corresponding relative intensity also tends to stabilization, this shows contained in the substrate can occur with thermal neutron
Effect10Boron is complete by reaction.
The test experience of the different neutron irradiation distances of embodiment 3
The method of the substrate synthesis reference embodiment 1 of neutron irradiation response, the present embodiment is repeated no more.
Solid phase surface strengthens the evaluation of Raman active substrate：Substrate is attached to paraffin and lead packaged block rear, is placed in
In radiant tunnel, the substrate that same treatment is obtained is placed in the diverse location in duct, Distance Layout point distance be successively 0cm,
2cm, 4cm, 6cm, 8cm, 10cm, the time radiated every time are 1200 seconds.
Experimental result：Record 10 test points that each substrate is randomly selected respectively using surface-enhanced Raman spectroscopy
SERS spectra, asks for averaged spectrum, and records and be depicted as integration map, as shown in Figure 5A.Corresponding radiation length from top to bottom
It is 0cm, 2cm, 4cm, 6cm, 8cm, 10cm successively, and according to spectrum change situation, chooses reference peak 1574cm-1With 1585cm-1
The relative ratio of intensity draw line chart as shown in Figure 5 B.As can be seen from the results, it is natural under different radiation lengths
The 4- sulfydryl benzene of composition10The content that boric acid raying is partially converted into benzenethiol is different.The result can be intuitively from spectrogram
And find out in line chart.With the expansion of distance, the content of substrate surface benzenethiol is gradually reduced, and decrease speed by becoming soon
Slowly.The feasibility and sensitivity of the result further instruction this method.
The silver nanoparticle shell of embodiment 4 is synthesized and solid phase surface strengthens constructing for Raman active substrate
1st, the synthesis of silver nanoparticle shell：
First by a diameter of 110 ± 5nm of 25mg SiO2Nanosphere is dispersed to be in 13mL ethanol；Then 1g is gathered
Vinylpyrrolidone is dissolved in above-mentioned solution；Then 0.1g silver nitrates be dissolved in ammoniacal liquor dilution to (0.2ml ammoniacal liquor is dissolved in
In 2mL water)；And then two kinds of solution are mixed into a few minutes；Finally mixed liquor is dispensed into reactor, 120 DEG C of reactions
12h.After reaction terminates, after question response kettle natural cooling, 5000rpm centrifugation 2min are cleaned multiple times with ethanol and produce silver nanoparticle shell
Suspension, and collect into 1mL.The a diameter of of the silver nanoparticle shell is 165~175nm.
2nd, solid phase surface strengthens the preparation of Raman active substrate：
The volumetric flask that a volume is 100mL is taken, 15.4g 4- sulfydryl benzene is added thereto10Boric acid is dissolved in 100mL's
In 10% ethanol water, ultrasound is mixed.Common commercial glass carrier is cleaned three times, every time 30 minutes with ethanol；Afterwards
After drying, the ethanol solution of 1% (v/v) aminopropyl triethoxysilane is immersed into, after handling 24 hours, then ethanol is used
Cleaning three times.Then dry, obtain amino glass carrier, by the amino glass carrier be cut into glass cutter area be 0.5cm ×
0.5cm fritter.The above-mentioned silver nanoparticle shell suspension of 10 μ L is taken out, the amination load glass for 0.5cm × 0.5cm in area is added dropwise
Piece, substrate constructs completion after 30 minutes.By the substrate, every piece is individually positioned in equipped with 1mL 4- sulfydryl benzene10The centrifugation of boric acid solution
Guan Zhong, soaks 24 hours.Slide is taken out afterwards, is respectively washed with deionized water and ethanol 3 times, obtains active substrate (except this
Outside embodiment, other method can also prepare the nano material).
By the substrate, every piece is individually positioned in the centrifuge tube equipped with 1mL benzenethiol sodium solutions, soaks 24 hours.Take afterwards
Go out slide, be respectively washed with deionized water and ethanol 3 times, obtain the substrate of benzenethiol sodium.By contrasting benzenethiol sodium and 4-
Sulfydryl benzene10The SERS spectrograms contrast of boric acid, the feasibility of judgment experiment.Concrete outcome is as shown in Figure 6.The result can be seen that
On the one hand illustrate such probe molecule adsorb on silver nanoparticle shell after SERS results and its knot after being adsorbed on gold nanoshell
Obvious otherness is not present in fruit；On the other hand the substrate based on silver nanoparticle shell is also demonstrated available among the experiment.
The experiment of the different radiated times of the suspended surface enhancing Raman active substrate of the liquid phase of embodiment 5
The suspended surface enhancing Raman active substrate evaluation of liquid phase：Each centrifuge tube contains 200 μ L 1mM 4- sulfydryls
Benzene1010% (v/v) ethanol water of boric acid, the gold nanoshell suspension for then taking 10 μ L embodiments 1 to prepare is mixed with 24
Hour.Centrifuge tube is attached to respectively after paraffin and lead packaged block, is put into radiation channel, be placed in same position and radiation is different
Time.Radiated time is 0,1 minute, 2 minutes, 3 minutes, 5 minutes, 10 minutes and 20 minutes.
Experimental result：Precipitation is collected by centrifugation in sample after processing respectively.Then repeatedly centrifugation resuspension is not inhaled with removing
Attached residue, is finally distributed in 10 μ L water, solid phase slide or silicon chip etc. is then added dropwise above, then pass through SERS spectra
10 random selection points of each substrate are recorded, averaged spectrum are obtained, as shown in Figure 7 A.Correspond to control group from top to bottom,
1min, 2min, 3min, 5min, 10min, 20min group.According to spectrum change, 1574cm is selected-1And 1585cm-1Locate reference peak
The relative scale of intensity, draws the line chart shown in Fig. 7 B.It can be seen that and examined using solid phase substrate by the result of comparison diagram 4
The sensitivity of survey is higher, and the time of required detection is shorter.
Claims (10)
1. detect the SERS active-substrate of thermoneutron radiation, it is characterised in that the SERS active groups of the detection thermoneutron radiation
Bottom is the surface reinforced Raman active substrate that molecule is responded with thermoneutron radiation.
2. the SERS active-substrate of thermoneutron radiation is detected according to claim 1, it is characterised in that the thermoneutron radiation
Response molecule is 3- sulfydryl benzene10Boric acid, 4- sulfydryl benzene10Boric acid, 3- aminobenzenes10Boric acid or 4- aminobenzenes10One kind in boric acid or
It is several.
3. the SERS active-substrate of detection thermoneutron radiation according to claim 1, it is characterised in that the surface enhanced
Raman active substrate is the suspension of the compound liquid phase of gold, silver, the single-element of copper or multiple element or by gold, silver, the list of copper
The solid phase surface enhancing Raman active that one element or the compound liquid phase suspension liquid modification of multiple element are obtained to surface of solid phase carriers
Substrate.
4. the SERS active-substrate of detection thermoneutron radiation according to claim 1, it is characterised in that the surface enhanced
Raman active substrate is gold nanoshell probe, the nm of a diameter of 100 nm of gold nanoshell in the gold nanoshell probe ~ 300.
5. the preparation method of the SERS active-substrate of the detection thermoneutron radiation described in any one of claim 1 ~ 4, its feature exists
In comprising the following steps：
1）The preparation of surface reinforced Raman active substrate：The surface reinforced Raman active substrate is gold, silver, the single-element of copper
Or the compound liquid phase suspension liquid of multiple element or the liquid phase suspension liquid that is combined gold, silver, the single-element of copper or multiple element are repaiied
Adorn surface of solid phase carriers and obtain solid phase surface enhancing Raman active substrate；
2）Detect the preparation of the surface reinforced Raman active substrate of thermoneutron radiation：Modified in surface reinforced Raman active substrate
Molecule is responded with thermoneutron radiation, the SERS active-substrate of detection thermoneutron radiation is obtained.
6. the preparation method of the SERS active-substrate of detection thermal neutron according to claim 5, it is characterised in that the heat
Neutron irradiation response molecule is 3- sulfydryl benzene10Boric acid, 4- sulfydryl benzene10Boric acid, 3- aminobenzenes10Boric acid or 4- aminobenzenes10In boric acid
One or more.
7. the SERS active-substrate of the detection thermoneutron radiation described in any one of claim 1 ~ 4 is in terms of thermoneutron radiation is detected
Application.
8. a kind of material for detecting thermoneutron radiation, it is characterised in that the material is comprising described in any one of claim 1 ~ 4
Detect the SERS active-substrate of thermoneutron radiation.
9. it is a kind of detect thermoneutron radiation method, it is characterised in that the detection method be by claim 1 ~ 4 any one institute
The SERS active-substrate for the detection thermal neutron stated is exposed in environment to be measured, is taken out and is determined its SERS, according to
The ratio of characteristic spectral line intensity, you can to calculate the intensity or dosage that obtain neutron irradiation.
10. the method for detection thermoneutron radiation according to claim 9, it is characterised in that the environment to be measured is neutron
Different time or radiation different distance are radiated in radiation source.
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| CN111158038A (en) * | 2020-01-03 | 2020-05-15 | 北京卫星环境工程研究所 | Neutron radiation dose detection method based on Raman spectrum |
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| US20160153975A1 (en) * | 2013-10-15 | 2016-06-02 | Board Of Trustees Of The University Of Arkansas | Nanocomposites, methods of making same, and applications of same for multicolor surface enhanced raman spectroscopy (sers) detections |
| US20160161413A1 (en) * | 2014-12-03 | 2016-06-09 | Bubble Technology Industries Inc. | System and method for detection of contaminants |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111158038A (en) * | 2020-01-03 | 2020-05-15 | 北京卫星环境工程研究所 | Neutron radiation dose detection method based on Raman spectrum |
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