CN107375954A - It is injected intravenously lipid microbubble and preparation method thereof - Google Patents

It is injected intravenously lipid microbubble and preparation method thereof Download PDF

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Publication number
CN107375954A
CN107375954A CN201710743241.9A CN201710743241A CN107375954A CN 107375954 A CN107375954 A CN 107375954A CN 201710743241 A CN201710743241 A CN 201710743241A CN 107375954 A CN107375954 A CN 107375954A
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CN
China
Prior art keywords
preparation
lipid microbubble
intravenous injection
injection lipid
injected intravenously
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CN201710743241.9A
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Chinese (zh)
Inventor
郑兆广
高俊飞
谢依侨
朱荃
何宝
王汝上
李亚利
段婷婷
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KANGCHEN PHARMACEUTICAL CO Ltd GUANGZHOU
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KANGCHEN PHARMACEUTICAL CO Ltd GUANGZHOU
GUANGZHOU KANGCHENG PHARMACEUTICAL RESEARCH CO LTD
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Priority to CN201710743241.9A priority Critical patent/CN107375954A/en
Publication of CN107375954A publication Critical patent/CN107375954A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K49/00Preparations for testing in vivo
    • A61K49/22Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations
    • A61K49/222Echographic preparations; Ultrasound imaging preparations ; Optoacoustic imaging preparations characterised by a special physical form, e.g. emulsions, liposomes
    • A61K49/223Microbubbles, hollow microspheres, free gas bubbles, gas microspheres
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/0012Galenical forms characterised by the site of application
    • A61K9/0019Injectable compositions; Intramuscular, intravenous, arterial, subcutaneous administration; Compositions to be administered through the skin in an invasive manner
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/48Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5005Wall or coating material
    • A61K9/5015Organic compounds, e.g. fats, sugars
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/48Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5089Processes

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  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Acoustics & Sound (AREA)
  • Dermatology (AREA)
  • Physics & Mathematics (AREA)
  • Medicinal Preparation (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

The invention discloses a kind of preparation method for being injected intravenously lipid microbubble, it is rotated by vacuum, and the uniform solution containing matrix material is prepared;Add the aqueous solution containing tackifier, isotonic regulator and pH adjusting agent, ultrasound or 4 DEG C stand overnight well mixed, obtain midbody solution;Free gas is injected, by mechanism, is produced.The preparation technology that the present invention proposes midbody solution is to influence the key factor of microvesicle average grain diameter and particle diameter distribution, midbody solution is prepared using film ultrasound or film aquation method first, improve the stability of preparation, improve the drug safety and validity of intravenous injection lipid microbubble, and it is simple to operate, power consumption it is low, convenient for production, it is easy to promote, is a kind of preparation method for the intravenous injection lipid microbubble that can be used for ultrasonic contrast and/or pharmaceutical carrier.

Description

It is injected intravenously lipid microbubble and preparation method thereof
Technical field
The invention belongs to pharmaceutical technology field, more particularly it relates to a kind of intravenous injection lipid microbubble and its system Preparation Method.
Background technology
Microvesicle is exactly a kind of trickle bubble, and they are widely present in nature, seem it is ordinary but have it is unusual Meaning, key are the gas being wherein wrapped in.Gas is a kind of very strong sound scattering body, and with extremely strong compressible Property, the small iron ball of particle diameter identical are compared with bubble, and the scattering section of bubble is 1,000,000 times of small iron ball.Because ultrasonic wave is connect The intensity Q of receipts is reflector scattering section S and incident intensity D direct proportion function, and scattering section S is microvesicle intrinsic frequency f With Scatter radium R function (S=af4R6), when ultrasonic wave runs into gas, caused scattering can be stronger than solid thousands of times.
Microvesicle is artificially added in blood, and original material is entirely different in their acoustic impedance values and blood, ultrasonic wave Strong scattering will be produced when them are run into, so as to be presented as the enhancing of echo on ultrasonogram, therefore, microvesicle is one The preferable acoustic contrast agent of kind.
Lipid microbubble is then that one layer of lipid film has been wrapped up on the surface of microvesicle, can not only reduce interfacial tension, is extended micro- Residence time, and the kernel formed in vivo is steeped, can not only wrap up gas, or medicament-carried good platform, Especially protide or fat-soluble medicine.Microvesicle occurs as a kind of highly effective cavitation nucleus, easy induced ultrasonic cavitation, Cavitation occurs that acoustic horn effect can be produced in vivo, causes adjacent cells quilt " ultrasound punching ", causes permeability of cell membrane Increase, beneficial to insoluble drug release.Therefore, microvesicle is expected in tumour, thrombolysis, inflammation treatment, and improve ventricular function, reduce it is postoperative Played a role in adverse reaction etc..
For being injected intravenously lipid microbubble, suitable particle diameter is primary.From the point of view of drug safety, microvesicle Particle diameter if it exceeds 10 μm, after intravenous injection, microvesicle can block capillary and cause local tissue necrosis, even cause Hemiplegia or death.There are some researches show microvesicle particle diameter is related to its development effect in vivo, diameter is less than 0.5 μm of microvesicle pair Echo is without obvious contribution.In general, average grain diameter is most suitable in 1.1~3.3 μm of lipid microbubble.It can be seen that average grain Footpath and particle diameter distribution are to reflect the key index of lipid microbubble quality.
It is vital, system for the average grain diameter and particle diameter distribution of control lipid microbubble to select suitable preparation technology Standby lipid microbubble mainly has two steps, and first is that homogeneous intermediate is made in the other compositions in prescription by addition to gas Solution, the step generally use two-phase dripping method, magnetic agitation prepares uniform solution and the aqueous solution containing phosphatide respectively, then passes through Two-phase is added dropwise to obtain midbody solution, because the phase transition temperature of phosphatide is higher, therefore, it is necessary to higher than 80 DEG C during magnetic agitation Under the conditions of, phosphatide could be dissolved completely in propane diols, for phosphatide, ester bond is contained in its structure, be easily oxidized, Harmful substance is generated, and the amount of actual participation formation adipose membrane can be reduced, and cause microvesicle stability to decline;Second is injection gas Body, activated by certain way, prepare microvesicle, including ultrasonic cavitation, high speed shear, vibration, microfluid and ink-jet marking method etc.. In conventional research, more activation methods for paying close attention to microvesicle.
The content of the invention
Based on this, the defects of in order to overcome above-mentioned prior art, the invention provides a kind of lipid microbubble that is injected intravenously New preparation method.
In order to realize foregoing invention purpose, this invention takes following technical scheme:
A kind of preparation method for being injected intravenously lipid microbubble, comprises the following steps:
(1), rotated by vacuum, the uniform solution containing matrix material is prepared;
(2), in the above-mentioned uniform solution containing matrix material, 9 times of volumes of addition contain tackifier, isotonic regulator With the aqueous solution of pH adjusting agent, ultrasound or 4 DEG C stand overnight well mixed, obtain midbody solution;
(3) free gas, is injected in above-mentioned midbody solution, by mechanism, is produced.
In wherein some embodiments, ultrasonic frequency described in step (2) is 25KHz, and the time is 4-6 minutes.
In wherein some embodiments, vacuum described in step (1) revolving temperature be 45-55 DEG C, speed be 400~ 500r/min, time 1h-1.5h;It is under conditions of vacuumizing, and the actual transformation temperature of phosphatide is less than theoretical value, so as to Revolving dissolving phosphatide can be carried out at a lower temperature, avoid phosphatide from being dissolved under high-heat environment, the ester bond in protection structure It is not hydrolyzed with ehter bond, the generation of blocking oxide reaction, so as to improve the stability of preparation.
In wherein some embodiments, matrix material described in step (1) is egg yolk lecithin, soybean lecithin, hydrogenation Egg yolk lecithin, hydrogenated soy phosphatidyl choline, phosphatidyl choline, DPPC, phosphatidyl-ethanolamine, two palmityls One or more in phosphatidyl-ethanolamine, phosphatidic acid, DPPA.
In wherein some embodiments, uniform solution solvent for use described in step (1) is propane diols, ethylene glycol or poly- Ethylene glycol 300.
In wherein some embodiments, tackifier described in step (2) are glycerine, chitosan, hyaluronic acid or hyalomitome Sour sodium.
In wherein some embodiments, isotonic regulator described in step (2) is glucose or sodium chloride.
In wherein some embodiments, pH adjusting agent described in step (2) is organic acid, organic base, inorganic acid, inorganic Alkali or buffering pair.
In wherein some embodiments, free gas described in step (3) is air, nitrogen, sulfur fluoride or fluorocarbon gas Body.
In wherein some embodiments, mechanism described in step (3) is high speed shear, ultrasonic cavitation or vibration.
In wherein some embodiments, the rotating speed of the high speed shear is 10000-11000rpm/min, time 1- 2min;The frequency of the ultrasonic cavitation is 40KHz-45KHz, time 3-5min;The frequency of the vibration is 4000- 5000rpm/min, time 45-50s.
Present invention also offers the intravenous injection lipid microbubble that above-mentioned preparation method is prepared.
Compared with prior art, the invention has the advantages that:
The preparation technology that the present invention proposes midbody solution be influence microvesicle average grain diameter and particle diameter distribution it is crucial because Element, midbody solution is prepared using film ultrasound or film aquation method first, both midbody solution preparation methods can be Phosphatide is completely dissolved less than under conditions of phosphatide phase transition temperature, avoids phosphatide from being dissolved under high-heat environment, in protection structure Ester bond and ehter bond are not hydrolyzed, the generation of blocking oxide reaction, and so as to improve the stability of preparation, it is micro- to improve intravenous injection lipid The drug safety and validity of bubble, and it is simple to operate, power consumption it is low, convenient for production, be easy to promote, be that one kind can be used for surpassing The preparation method of the intravenous injection lipid microbubble of sound radiography and/or pharmaceutical carrier.
Brief description of the drawings
Fig. 1 is C made from Film-ultrasonic technique in the embodiment of the present invention 13F8It is injected intravenously the grain size distribution of lipid microbubble;
Fig. 2 is SF made from Film-ultrasonic technique in the embodiment of the present invention 16It is injected intravenously the grain size distribution of lipid microbubble;
Fig. 3 is film-C made from aquation method in the embodiment of the present invention 33F8It is injected intravenously the grain size distribution of lipid microbubble.
Fig. 4 is film-SF made from aquation method in the embodiment of the present invention 46It is injected intravenously the grain size distribution of lipid microbubble;
Embodiment
The present invention is further discussed below with specific embodiment below in conjunction with the accompanying drawings, the present invention does not address part and is applied to existing skill Art.It is given below the specific embodiment of the present invention, but embodiment is merely to be described in further detail this explanation, is not intended to limit The claim of invention.Reagent or raw material used in following examples, unless otherwise specified, derive from commercially available.
The present invention is rotated by vacuum and prepares the uniform solution containing matrix material, is added containing tackifier, isotonic regulation Agent and the aqueous solution of pH adjusting agent, ultrasound or 4 DEG C stand overnight well mixed, obtain midbody solution, it is filling after injection freely Gas, the methods of through high speed shear, ultrasonic cavitation or vibration, it can must be injected intravenously lipid microbubble.
Specific method is:
Using film ultrasound, vacuumize revolving to prepare the uniform solution containing matrix material, add containing tackifier, etc. Conditioning agent and the aqueous solution of pH adjusting agent are oozed, ultrasonic mixing is uniform, obtains midbody solution, injects free gas, passes through at a high speed The methods of shearing, ultrasonic cavitation or vibration, so as to form lipid microbubble.
Or:Using film aquation method, revolving is vacuumized to prepare the uniform solution containing matrix material, is added containing thickening The aqueous solution of agent, isotonic regulator and pH adjusting agent, 4 DEG C stand overnight, abundant aquation, obtain midbody solution, injection is freely Gas, the methods of by high speed shear, ultrasonic cavitation or vibration, so as to form lipid microbubble.
The Film-ultrasonic technique of embodiment 1 prepares C3F8It is injected intravenously lipid microbubble
The Film-ultrasonic technique of the present embodiment prepares C3F8Lipid microbubble is injected intravenously, is comprised the following steps:
(1), vacuumized under 50 DEG C, 400r/min revolving 1 hour with prepare DPPC containing 11mg, The uniform solution 2.5ml of 7.8mg DPPEs and 1.2mg DPPAs;Prepare uniform solution institute The solvent used is propane diols;
(2), add and contain 3.15g glycerine, 0.12g sodium chloride, 0.05g sodium dihydrogen phosphates and 0.05g disodium hydrogen phosphates The aqueous solution, ultrasonic 5min are well mixed, and obtain midbody solution 25ml;
(3) 1.5mL midbody solutions, are taken into 2mL cillin bottles, inject C3F8Gas, it is placed in shaker, in 4550r/ 45s is vibrated under min, produces intravenous injection lipid microbubble.
The particle diameter that lipid microbubble is injected intravenously made from the present embodiment is measured, as a result such as Fig. 1, from Fig. 1 results Understand, the average grain diameter of the obtained intravenous injection lipid microbubble of the present embodiment is 2.237 μm, and particle diameter distribution is more concentrated, and is not deposited It is less than the lipid microbubble that 0.5 μm and particle diameter be more than 10 μm in particle diameter, meets the security and effectively of intravenous injection lipid microbubble Property require.
The Film-ultrasonic technique of embodiment 2 prepares SF6It is injected intravenously lipid microbubble
The Film-ultrasonic technique of the present embodiment prepares SF6Lipid microbubble is injected intravenously, is comprised the following steps:
(1) it is big to prepare egg yolk lecithin containing 10mg and 10mg revolving, to be vacuumized under 55 DEG C, 500r/min 1.5 hours The uniform solution 2.5ml of beans lecithin;Solvent used in preparing uniform solution is propane diols;
(2) water containing 3.15g hyaluronic acids, 0.12g glucose, 0.04g arginine and 0.06g aspartic acids, is added Solution, ultrasonic 5min are well mixed, and obtain midbody solution 25ml;
(3) 1.5mL midbody solutions, are taken into 2mL cillin bottles, inject SF6Gas, it is placed in shaker, in 4750r/ 50s is vibrated under min, produces intravenous injection lipid microbubble.
The particle diameter that lipid microbubble is injected intravenously made from the present embodiment is measured, as a result such as Fig. 2, from Fig. 2 results Understand, the average grain diameter of the obtained intravenous injection lipid microbubble of the present embodiment is 2.570 μm, and particle diameter distribution is more concentrated, and is not deposited It is less than the lipid microbubble that 0.5 μm and particle diameter be more than 10 μm in particle diameter, meets the security and effectively of intravenous injection lipid microbubble Property require.
3 films of embodiment-aquation method prepares C3F8It is injected intravenously lipid microbubble
(1), vacuumized under 50 DEG C, 400r/min revolving 1 hour with prepare DPPC containing 11mg, The uniform solution 2.5ml of 7.8mg DPPEs and 1.2mg DPPAs;Prepare uniform solution institute The solvent used is propane diols;
(2), add and contain 3.15g glycerine, 0.12g sodium chloride, 0.05g sodium dihydrogen phosphates and 0.05g disodium hydrogen phosphates The aqueous solution, 4 DEG C stand overnight, and abundant aquation, obtain midbody solution 25ml;
(3) 1.5mL midbody solutions, are taken into 2mL cillin bottles, inject C3F8Gas, it is placed in shaker, in 4550r/ 45s is vibrated under min, produces intravenous injection lipid microbubble.
The particle diameter that lipid microbubble is injected intravenously made from the present embodiment is measured, as a result such as Fig. 3, from Fig. 3 results Understand, the average grain diameter of the obtained intravenous injection lipid microbubble of the present embodiment is 2.799 μm, and particle diameter distribution is more concentrated, and is not deposited It is less than the lipid microbubble that 0.5 μm and particle diameter be more than 10 μm in particle diameter, meets the security and effectively of intravenous injection lipid microbubble Property require.
4 films of embodiment-aquation method prepares SF6It is injected intravenously lipid microbubble
(1) it is big to prepare egg yolk lecithin containing 10mg and 10mg revolving, to be vacuumized under 55 DEG C, 500r/min 1.5 hours The uniform solution 2.5ml of beans lecithin;Solvent used in preparing uniform solution is propane diols;
(2) water containing 3.15g hyaluronic acids, 0.12g glucose, 0.04g arginine and 0.06g aspartic acids, is added Solution, 4 DEG C stand overnight, and abundant aquation, obtain midbody solution 25ml;
(3) 1.5mL midbody solutions, are taken into 2mL cillin bottles, inject SF6Gas, it is placed in shaker, in 4750r/ 50s is vibrated under min, produces intravenous injection lipid microbubble.
The particle diameter that lipid microbubble is injected intravenously made from the present embodiment is measured, as a result such as Fig. 4, from Fig. 4 results Understand, the average grain diameter of the obtained intravenous injection lipid microbubble of the present embodiment is 2.820 μm, and particle diameter distribution is more concentrated, and is not deposited It is less than the lipid microbubble that 0.5 μm and particle diameter be more than 10 μm in particle diameter, meets the security and effectively of intravenous injection lipid microbubble Property require.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.

Claims (10)

1. a kind of preparation method for being injected intravenously lipid microbubble, it is characterised in that comprise the following steps:
(1), rotated by vacuum, the uniform solution containing matrix material is prepared;
(2), in the above-mentioned uniform solution containing matrix material, 9 times of volumes of addition contain tackifier, isotonic regulator and pH The aqueous solution of conditioning agent, ultrasound or 4 DEG C stand overnight well mixed, obtain midbody solution;
(3) free gas, is injected in above-mentioned midbody solution, by mechanism, is produced.
2. the preparation method of intravenous injection lipid microbubble according to claim 1, it is characterised in that described in step (1) The temperature of vacuum revolving is 45~55 DEG C, and speed is 400~500r/min, and the time is 1~1.5h.
3. the preparation method of intravenous injection lipid microbubble according to claim 1, it is characterised in that described in step (2) The frequency of ultrasound is 25KHz, and the time is 4-6 minutes.
4. the preparation method of the intravenous injection lipid microbubble according to any one of claims 1 to 3, it is characterised in that step (1) matrix material described in is egg yolk lecithin, soybean lecithin, hydrogenated yolk lecithin, hydrogenated soy phosphatidyl choline, phosphatidyl Choline, DPPC, phosphatidyl-ethanolamine, DPPE, phosphatidic acid, two palmityl phosphatide One or more in acid.
5. the preparation method of the intravenous injection lipid microbubble according to any one of claims 1 to 3, it is characterised in that step (1) uniform solution solvent for use described in is propane diols, ethylene glycol or Liquid Macrogol.
6. the preparation method of the intravenous injection lipid microbubble according to any one of claims 1 to 3, it is characterised in that step (2) tackifier described in are glycerine, chitosan, hyaluronic acid or Sodium Hyaluronate;The isotonic regulator is glucose or chlorine Change sodium;The pH adjusting agent is organic acid, organic base, inorganic acid, inorganic base or buffering pair.
7. the preparation method of the intravenous injection lipid microbubble according to any one of claims 1 to 3, it is characterised in that step (3) free gas described in is air, nitrogen, sulfur fluoride or fluorocarbon gas.
8. the preparation method of the intravenous injection lipid microbubble according to any one of claims 1 to 3, it is characterised in that step (3) mechanism described in is high speed shear, ultrasonic cavitation or vibration.
9. the preparation method of intravenous injection lipid microbubble according to claim 8, it is characterised in that the high speed shear Rotating speed is 10000-11000rpm/min, time 1-2min;The frequency of the ultrasonic cavitation is 40KHz-45KHz, and the time is 3-5min;The frequency of the vibration is 4000-5000rpm/min, time 45-50s.
10. the intravenous injection lipid microbubble that the preparation method described in any one of claim 1~9 is prepared.
CN201710743241.9A 2017-08-25 2017-08-25 It is injected intravenously lipid microbubble and preparation method thereof Pending CN107375954A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150343079A1 (en) * 2012-10-25 2015-12-03 Sogang University Research Foundation Ultrasound contrast agent with nanoparticles including drug and method for preparing the same
CN106821982A (en) * 2017-01-12 2017-06-13 东南大学 A kind of sinapultide microbubble agents and preparation method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150343079A1 (en) * 2012-10-25 2015-12-03 Sogang University Research Foundation Ultrasound contrast agent with nanoparticles including drug and method for preparing the same
CN106821982A (en) * 2017-01-12 2017-06-13 东南大学 A kind of sinapultide microbubble agents and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
彭晓艳等: "《C3F8脂质体超声微泡造影剂制备的初步研究》", 《武汉大学学报(医学版)》 *
潘弟仪: "《超声造影剂—全氟丙烷脂质微泡的制备与评价》", 《中国优秀硕士学位论文全文数据库 医药卫生科技辑》 *

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Application publication date: 20171124