CN110426325A - The method for carrying inert particle using micro-nano motor cluster - Google Patents
The method for carrying inert particle using micro-nano motor cluster Download PDFInfo
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- CN110426325A CN110426325A CN201910700867.0A CN201910700867A CN110426325A CN 110426325 A CN110426325 A CN 110426325A CN 201910700867 A CN201910700867 A CN 201910700867A CN 110426325 A CN110426325 A CN 110426325A
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- 239000002245 particle Substances 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 20
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 42
- 230000033001 locomotion Effects 0.000 claims abstract description 33
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000446 fuel Substances 0.000 claims abstract description 9
- 239000011859 microparticle Substances 0.000 claims abstract description 9
- 239000000725 suspension Substances 0.000 claims abstract description 8
- 239000002105 nanoparticle Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000008367 deionised water Substances 0.000 claims abstract description 5
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 5
- 239000011521 glass Substances 0.000 claims abstract description 4
- 239000000758 substrate Substances 0.000 claims abstract description 4
- 239000006185 dispersion Substances 0.000 claims abstract description 3
- 230000001427 coherent effect Effects 0.000 claims description 2
- 230000026058 directional locomotion Effects 0.000 claims description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims 1
- 229910001882 dioxygen Inorganic materials 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 21
- 230000009193 crawling Effects 0.000 abstract description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 13
- 238000010586 diagram Methods 0.000 description 7
- 239000004408 titanium dioxide Substances 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 229910052681 coesite Inorganic materials 0.000 description 5
- 229910052906 cristobalite Inorganic materials 0.000 description 5
- 239000000377 silicon dioxide Substances 0.000 description 5
- 229910052682 stishovite Inorganic materials 0.000 description 5
- 229910052905 tridymite Inorganic materials 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 230000001351 cycling effect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000004220 aggregation Methods 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000001000 micrograph Methods 0.000 description 2
- 230000029264 phototaxis Effects 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910021607 Silver chloride Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 244000144992 flock Species 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010327 methods by industry Methods 0.000 description 1
- 239000004530 micro-emulsion Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 1
- 229910000161 silver phosphate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/10—Investigating individual particles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N2015/0003—Determining electric mobility, velocity profile, average speed or velocity of a plurality of particles
-
- G01N2015/1027—
Abstract
The invention discloses a kind of methods for carrying inert particle using micro-nano motor cluster.By anatase TiO2Micro-and nano-particles dispersion is made into suspension in deionized water, stands 1-5min after being added drop-wise on glass substrate and obtains micro-nano motor cluster；Hydrogen peroxide is added as fuel, the movement of micro-nano motor cluster is controlled by control light source switch, light source direction, the intensity of light source, light application time, sweeps along target noble particle and realizes the carrying to inert particle.The present invention can control accurate crawl, transport and release of the motor cluster to inert particle by control direction of illumination, intensity of illumination, light application time, it is expected to push micro-nano motor in microcell space exploration, sensing and collaborative crawling, transport and the practical application for assembling field.
Description
Technical field
Micro-nano motor cluster, which is particularly related to, the invention belongs to micro-nano motor technical field carries inert particle
Method.
Background technique
There are a large amount of biologies in nature, they only have limited perception and ability to act as individual, but pass through part
The biological cluster that self-organizing reciprocation is formed but tends to show the group behavior and synergistic function that individual does not have, complete
Carries at cooperation, migrate, look for food, nest, resist the enemy etc. the team tasks of complexity.Micro-nano motor is a kind of size in micro-nano
Meter level is other, and the energy (such as chemical energy) of other forms in environment can be converted into the micro-nano machine of itself kinetic energy
(Nanoscale 2014,6,7175；Nanoscale 2013,5,4696；ACS Appl.Mater.Interfaces 2014,
6,9897；Small 2014,10,4154；Chem.Rev.2015,115,8704).It is similar with organism, some micro-nano motors
Various physiochemical signals can be discharged into environment, and are interacted and self-organizing shape with other micro-nano motors generation near it
At micro-nano motor cluster (Acc.Chem.Res.2015,48,1938).For example, Pennsylvania State Univ-Univ Park USA Sen and
Mallouk seminar (Angew.Chem.Int.Ed.2009,48,3308；J.Am.Chem.Soc.2013,135,1280；
Adv.Funct.Mater.2010,20,1568) it is interacted using the diffusiophoresis between colloidal particle, develop AgCl, Ag3PO4
And SiO2/TiO2Micron motor cluster.Solovev et al. (Nanoscale 2013,5,1284) utilizes capillary force interaction structure
Bubble driving tubulose engine cluster is built.California, USA university, branch school, San Diego Wang seminar (Nano Lett.2015,15,
4814) effect that Xiang Bojie (or antinode) assembles in standing-wave sound field using particle has developed from driving metal bar shape nanometer
Motor cluster changes the position of stationary field node and antinode by adjusting supersonic frequency, can regulate and control the position of nano-motor cluster
And movement.Since micro-nano motor cluster has good fault-tolerance, redundancy and adaptivity, thus it is expected their energy
The synergistic function that individual micro-nano motor does not have enough is shown, is expected to as programmable micro-nano machine in micro-nano-scale
The cooperation of lower completion cargo carries, micro-nano device assemble in situ and processing, micro- aerospace telemetry, drug conveying and it is micro- perform the operation etc. it is complicated
Task brings change property application technology to the fields such as bio-medical, environmental monitoring and improvement, micro-nano process engineering.But so far
These micro-nano motor clusters of development otherwise be only able to achieve aggregation, divergent function or mass motion direction are difficult to control.It
Can not all plan or the control on demand direction of motion and track in real time and also to rarely have micro-nano motor cluster application at present in advance
The relevant report of aspect.Recently, Hong Kong Chinese University Zhang Li seminar (Nat.Commun.2018,9,3260) utilizes oscillating magnetic flux
Realize magnetic cluster free extension deformation and directed movement in complex fluid environment in field；He Qiang seminar, Harbin Institute of Technology
(Sci.Robot.2019,4, eaav8006) using vortex motor cluster realizes its directed movement and to large cargo polyphenyl
The carrying of ethylene microballoon.However it is seriously constrained to the dependence of 3 D complex oscillating magnetic field can operational readiness and practical application.Cause
This, development constructs a kind of direction of motion controllable precise, without specific complicated outfield, and can carry out cooperation carrying to " large cargo "
Micro-nano motor cluster be one of this field urgent problem to be solved.
Summary of the invention
It is an object of that present invention to provide a kind of methods for accurately controlling micro-nano motor collective motion direction and track simultaneously
Realize that cluster delivers the bionical cooperation of inert particle.
To achieve the above object, as follows using technical solution:
The method for carrying inert particle using micro-nano motor cluster, comprising the following steps:
By anatase TiO2Micro-and nano-particles dispersion is made into suspension in deionized water, quiet after being added drop-wise on glass substrate
It sets 1-5min and obtains micro-nano motor cluster；
Hydrogen peroxide is added as fuel, is controlled by control light source switch, light source direction, the intensity of light source, light application time micro-
The movement of nano-motor cluster sweeps along target noble particle and realizes the carrying to inert particle.
According to the above scheme, the anatase TiO2The particle size range of micro-and nano-particles is 0.025-20 μm.
According to the above scheme, the particle size range of the inert particle is at 10 μm or less.
According to the above scheme, the light source is wavelength in 400nm light below.
According to the above scheme, the angle of the light source and horizontal plane normal is θ, and 0 °≤θ < 90 °.
According to the above scheme, the light source output power is in 0.06W or more.
According to the above scheme, hydrogen peroxide concentration in system is 0.005wt% or more.
According to the above scheme, it by the control to micro-and nano-particles concentration, realizes to micro-nano motor cluster cohesive size
Control；With the increase of concentration, increase tendency is presented in the size under micro-nano motor cluster coherent condition.
According to the above scheme, it by the control to light application time, the intensity of light source or hydrogen peroxide concentration, realizes to micro-nano motor
The control of the real-time size of cluster and movement rate；With the increase of light application time, the intensity of light source and hydrogen peroxide concentration, micro-nano horse
Increase tendency is presented in real-time size and movement velocity up to cluster.
According to the above scheme, by the control to light source incidence direction, the control to micro-nano motor collective motion direction is realized
System；When light source is from non-perpendicular to slide direction directive micro-nano motor cluster, micro-nano motor cluster can be towards light source incidence
Direction movement, increases the size of itself simultaneously because particle scatters, and when changing light source direction, micro-nano motor cluster
The direction of motion also changes correspondingly immediately；Light source shows the increase of size and does not have perpendicular to slide direction, micro-nano motor cluster
Directional movement.
The present invention has the beneficial effect that:
The method that the present invention can accurately control micro-nano motor collective motion direction and track has easy to operate, behaviour
Control the features such as precision is high, applied widely.
The size of inert particle of the present invention is much larger than the size of single micron motor, can not be moved by single-motor；
The cluster can be loaded, transport and discharge to the cargo of different surfaces performance, different number.
The present invention can control motor cluster to inert particle by control direction of illumination, intensity of illumination, light application time
It is accurate crawl, transport and release, be expected to push micro-nano motor microcell space exploration, sensing and collaborative crawling, transport
With the practical application in assembling field.
Detailed description of the invention
Fig. 1: cluster structure figures under the scanning electron microscope (SEM) photograph (A) of 1 isotropism titanium dioxide micrometer particle of embodiment, microscope
(B), XRD diffraction pattern (C) and TG-DSC analysis chart (D).
Fig. 2: (B) cluster formational situation under natural light (A) and dark condition.
Fig. 3: cluster size and mass motion speed are respectively with the change of intensity of illumination (A, B, C) and fuel concentration (D, E, F)
Change trend.
Fig. 4: light irradiation apparatus schematic diagram.
Fig. 5: the time diagram of cycling switch ultraviolet lamp.
Fig. 6: light guide isotropism TiO2The directed movement trajectory diagram of micron motor cluster.
Fig. 7: the adaptability deformation of micron motor cluster.
Fig. 8: light guide controls the cooperation of titanium dioxide micrometer motor and carries the trajectory diagram that inert particle realizes directed movement.
Fig. 9: the light-operated titanium dioxide micrometer motor realizes the unloading to inert particle.
Figure 10: different-grain diameter TiO 2 particles assemble the micrograph for forming cluster in aqueous solution.
Figure 11: the cluster micrograph that titanium dioxide micrometer motor is formed under the conditions of different particle concentrations.
Figure 12: titanium dioxide micrometer motor cluster carries the timing diagram of different surfaces performance cargo, (A) amino PS ball；(B)
Carboxyl PS ball.
Figure 13: the relationship between the average movement velocity and entrained quantity of goods of titanium dioxide micrometer motor cluster.
Specific embodiment
Following embodiment further illustrates technical solution of the present invention, but not as limiting the scope of the invention.
Embodiment 1
One kind being based on isotropism TiO2The cluster building of micron motor and phototaxis motion control method:
Take isotropic anatase TiO2Spherical micro particles, are scattered in deionized water solution and are configured to
The particle suspension of 0.35mg/ml.A small amount of particle suspension is taken to be dispersed to certain density hydrogen peroxide as fuel (0.25wt.%)
In, 1-5min or so is waited, the micron motor cluster of self aggregation formation can be obtained.Build illumination platform, setting light and level
Face angle is β (0 °≤0<90 °), sets light source output power as P (>0.06W), is by control illumination switch, direction of illumination
Accurately control TiO2The direction of motion of micron motor cluster and track.
Utilize scanning electron microscope (SEM, S-4800, Hitachi Co., Ltd., Japan), inverted fluorescence microscope
(Leica DM 3000B), X-ray diffraction analysis instrument (XRD Bruker D8 Advance X-ray diffractometer)
Microstructure characterization is carried out to taken titanium dioxide micrometer particle with thermogravimetric analyzer (NETZSEC, STA-449C, Germany)
It is mutually characterized with object, as a result as shown in figure 1 shown in A, B, C, D.Figure 1A illustrates that this structural motif for being used to construct motor cluster is
1.2 μm or so of spheroidal particle；Figure 1B explanation independently can assemble to form cluster in aqueous solution；Fig. 1 C and D show this particle
In contain anatase TiO2With hydration TiO2。
Isotropism TiO2The performance test of micron motor cluster:
1) natural light tests the influence that cluster is formed
By the mixed liquor of 1 gained micron motor cluster of embodiment and hydrogen peroxide be placed individually into natural light and dark
In environmental system, TiO is observed using fluorescence microscope (Leica DM 3000B)2The case where micron motor forms cluster.Such as Fig. 2
Shown in middle A, B, show that motor can self-assemble formation cluster under natural light or dark surrounds.
2) micron motor cluster size and mass motion speed are surveyed with the variation of light application time, intensity of illumination, fuel concentration
Examination
With the TiO obtained in Figure 1B of embodiment 12Micron motor cluster is object, utilizes external UV emitting device
(365nm) is irradiated it, changes light application time, intensity of illumination and fuel concentration, using fluorescence microscope (Leica DM
3000B) observe TiO2The variation of micron motor cluster size and movement velocity.As shown in Fig. 3 A, B, C, D, E, F, with illumination
Increase tendency is presented in the increase of time, intensity of illumination and fuel concentration, the size and movement velocity of cluster.
3) the phototaxis movenent performance test of micron motor cluster
With the TiO obtained in Figure 1B of embodiment 12Micron motor cluster is object, builds illumination platform as shown in Figure 4,
The switch of ultraviolet lamp is controlled with program as shown in Figure 5, wherein A figure is the time diagram of cycling switch Y direction ultraviolet lamp；B figure
For the time diagram of cycling switch X-direction ultraviolet lamp.TiO is observed using fluorescence microscope (Leica DM 3000B)2Micron horse
Up to the variation of cluster position.Light intensity is 1W/cm in experiment2, hydrogen peroxide concentration 0.25wt.%.As a result as shown in fig. 6, showing
Light can accurately control the direction of motion and the track of cluster.
4) aptitude tests that micron motor cluster is deformed according to environment self-adaption
With the TiO obtained in Figure 1B of embodiment 12Micron motor cluster is object, with illumination platform as shown in Figure 4 behaviour
Control cluster.Long-time illumination (> 1min) is carried out to cluster, as a result as shown in Figure 7 A, one big cluster can disintegrate to form 18
Small cluster, and big cluster may finally be reassembled into.When in environmental system there are when barrier or narrow pipeline,
Cluster is manipulated with illumination platform as shown in Figure 4, TiO is observed using fluorescence microscope (Leica DM 3000B)2Micron motor
Flock behaviour change in location shows that this micron of motor cluster, can be with when encountering barrier and pipeline as a result as shown in Fig. 7 B, C
The form for adjusting itself carrys out across obstacle and across narrow pipeline.
5) performance test of inert particle is carried in the bionical cooperation of micron motor cluster
With the TiO obtained in Figure 1B of embodiment 12Micron motor cluster is object, is added 0.01mg/ml's into system
SiO2Particle (10 μm), with the direction of motion of illumination platform as shown in Figure 4 manipulation cluster and track.Using fluorescence microscope
(Leica DM 3000B) observes TiO2Micron motor cluster and SiO2Interaction between particle, experimental result such as Fig. 8 and figure
Shown in 9.Show TiO2Micron motor cluster can carry out bionical cooperation carrying to large-scale inert particle, be precisely accomplished determining for cargo
Point transport and release.
Embodiment 2
The TiO of cluster will be constructed in embodiment 12Micro particles change P25 (25nm) nano-TiO into respectively2With utilize microemulsion
The large scale TiO of method preparation2Micro particles (5-20 μm), disperse the two in deionized water solution respectively be configured to it is certain dense
The particle suspension of degree.A small amount of particle suspension is taken to be added dropwise on glass substrate, using fluorescence microscope (Leica DM
3000B) particle buildup situation is characterized.The results are shown in Figure 10
Embodiment 3
Particle suspension concentration in embodiment 1 is adjusted separately to 0.15,0.5,0.75mg/ml, above embodiments 1 are repeated
The step of, obtain TiO2Micron motor cluster carries out particle buildup situation using fluorescence microscope (Leica DM 3000B)
Characterization illustrates that the different cluster of size can be obtained when particle concentration is higher than 0.15mg/ml, particle concentration is got over as shown in figure 11
Height, obtained cluster size are bigger.
Embodiment 4
With the TiO obtained in Figure 1B of embodiment 12Micron motor cluster is object, is added 0.01mg/ml's into system
NH4- PS ball and COOH-PS spherolite are sub (10 μm), with the direction of motion of illumination platform as shown in Figure 4 manipulation cluster and track.
TiO is observed using fluorescence microscope (Leica DM 3000B)2Micron motor cluster and NH4- PS ball and COOH-PS spherolite
Between interaction, experimental result is as shown in figure 12.Show that this micron of motor cluster can carry the cargo of different surfaces modification
Particle, adaptability are extensive.
Embodiment 5
With the TiO obtained in Figure 1B of embodiment 12Micron motor cluster is object, is added 0.1mg/ml's into system
SiO2Particle (10 μm), with the direction of motion of illumination platform as shown in Figure 4 manipulation cluster and track.Using fluorescence microscope
(Leica DM 3000B) observes TiO2Micron motor cluster and multiple SiO2Interaction between particle calculates quantity of goods
To the affecting laws of travelling speed, as a result as shown in figure 13.Show that this micron of motor cluster can carry multiple inertia grains simultaneously
Son, and its travelling speed is reduced with the increase of quantity of goods.
The present invention relates to cluster building behavior, particle concentration (motor and cargo), particle size (cargo), illumination it is strong
Parameters, the section values such as degree, light application time, direction of illumination variation and fuel concentration can realize the present invention, herein not one by one
Enumerate embodiment.
Claims (10)
1. the method for carrying inert particle using micro-nano motor cluster, it is characterised in that the following steps are included:
By anatase TiO2Micro-and nano-particles dispersion is made into suspension in deionized water, stands 1- after being added drop-wise on glass substrate
5min obtains micro-nano motor cluster；
Hydrogen peroxide is added as fuel, is controlled by control light source switch, light source direction, the intensity of light source, light application time micro-nano
The movement of motor cluster sweeps along target noble particle and realizes the carrying to inert particle.
2. the method for carrying inert particle using micro-nano motor cluster as described in claim 1, it is characterised in that the rutile titania
Mine TiO2The particle size range of micro-and nano-particles is 0.025-20 μm.
3. the method for carrying inert particle using micro-nano motor cluster as described in claim 1, it is characterised in that the inertia
The particle size range of particle is at 20 μm or less.
4. the method for carrying inert particle using micro-nano motor cluster as described in claim 1, it is characterised in that the light source
It is wavelength in 400nm light below.
5. the method for carrying inert particle using micro-nano motor cluster as described in claim 1, it is characterised in that the light source
Angle with horizontal plane normal is θ, and 0 °≤θ < 90 °.
6. the method for carrying inert particle using micro-nano motor cluster as described in claim 1, it is characterised in that the light source
Output power is in 0.06 W or more.
7. the method for carrying inert particle using micro-nano motor cluster as described in claim 1, it is characterised in that the dioxygen
Water concentration in system is 0.005wt% or more.
8. the method for carrying inert particle using micro-nano motor cluster as described in claim 1, it is characterised in that by micro-
The control to micro-nano motor cluster cohesive size is realized in the control of nanoparticle concentration；With the increase of concentration, micro-nano horse
Increase tendency is presented up to the size under cluster coherent condition.
9. the method for carrying inert particle using micro-nano motor cluster as described in claim 1, it is characterised in that by light
According to the control of time, the intensity of light source or hydrogen peroxide concentration, the control to the real-time size of micro-nano motor cluster and movement rate is realized
System；With the increase of light application time, the intensity of light source and hydrogen peroxide concentration, the real-time size and movement velocity of micro-nano motor cluster
Increase tendency is presented.
10. the method for carrying inert particle using micro-nano motor cluster as described in claim 1, it is characterised in that by light
The control to micro-nano motor collective motion direction is realized in the control of source incident direction；When light source is from non-perpendicular to slide direction
When directive micro-nano motor cluster, micro-nano motor cluster can be moved towards light source incidence direction, simultaneously because particle, which scatters, to be made
The size of itself increases, and when changing light source direction, the direction of motion of micro-nano motor cluster also changes correspondingly immediately；Light source
Perpendicular to slide direction, micro-nano motor cluster shows the increase of size without directional motion.
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