WO2016101854A1 - 一种包载 icg 的聚合物 - 磷脂纳米颗粒及其制备方法 - Google Patents

一种包载 icg 的聚合物 - 磷脂纳米颗粒及其制备方法 Download PDF

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WO2016101854A1
WO2016101854A1 PCT/CN2015/098050 CN2015098050W WO2016101854A1 WO 2016101854 A1 WO2016101854 A1 WO 2016101854A1 CN 2015098050 W CN2015098050 W CN 2015098050W WO 2016101854 A1 WO2016101854 A1 WO 2016101854A1
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polymer
icg
phospholipid
nanoparticle
nanoparticles
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蔡林涛
郑明彬
陈泽
罗震宇
赵鹏飞
龚萍
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Shenzhen Institute of Advanced Technology of CAS
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00Medicinal preparations characterised by special physical form
    • A61K9/14Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/06Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
    • A61K47/24Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite containing atoms other than carbon, hydrogen, oxygen, halogen, nitrogen or sulfur, e.g. cyclomethicone or phospholipids
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K47/00Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
    • A61K47/30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
    • A61K47/34Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyesters, polyamino acids, polysiloxanes, polyphosphazines, copolymers of polyalkylene glycol or poloxamers

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  • the present invention relates to the field of pharmaceutical carriers, and in particular to a polymer-phospholipid nanoparticle encapsulating ICG and a preparation method thereof.
  • Nanocarriers represented by polymer nanoparticles and nanoliposomes can efficiently encapsulate and transport drugs or genes, and have become a research hotspot of scientists all over the world.
  • the polymer nanoparticles have the advantages of strong drug encapsulation ability, high endocytosis efficiency, and long circulation time in the body.
  • Nanoliposomes are characterized by excellent biosafety, high transport capacity, and simple preparation process.
  • Polymer-phospholipid nanoparticles prepared by combining the advantages of polymers and phospholipids have been widely used for drug delivery.
  • the existing polymer-phospholipid nanoparticle preparation methods are mainly ultrasonic method and nano-precipitation method, and the prepared dose is limited to the experimental dose of 1-3 ml, which limits the industrialization process of the polymer-phospholipid nanoparticle.
  • the present invention provides a polymer-phospholipid nanoparticle encapsulating ICG and a preparation method thereof.
  • the polymer-phospholipid nanoparticles coated with ICG of the invention are prepared by one-step high-pressure homogenization method, and the preparation method is simple, and a large dose of polymer-phospholipid nanoparticles can be prepared, which solves the preparation dosage of polymer-phospholipid nanoparticles in the prior art. Smaller problem.
  • a first aspect of the present invention provides a polymer-phospholipid nanoparticle encapsulating ICG (phthalocyanine green), the ICG-loaded polymer-phospholipid nanoparticle comprising a core and a shell, the core
  • the polymer coating is formed on the surface of the I CG, the outer shell is a phospholipid, and the phospholipid is coated on the surface of the polymer, and the polymer is polyglycolide lactide (PLGA) or polylactic acid (PLA).
  • the phospholipid is at least one of soybean lecithin, hydrogenated soybean lecithin, egg yolk lecithin, hydrogenated egg yolk lecithin, phosphatidylcholine and phosphatidylethanolamine.
  • the mass ratio of the polymer to the ICG is 1:0.8-2.4, and the phospholipid and the quality of the ICG The ratio is 1:1-3.
  • the ICG-loaded polymer-phospholipid nanoparticles have a particle size of 20-300 nm.
  • the polymer-phospholipid nanoparticles coated with ICG provided by the first aspect of the invention have uniform particle size and stable properties, and no sedimentation or flocculation phenomenon occurs after 30 days of storage, and the polymer-phospholipid nanoparticles coated with ICG It can be used for targeted recognition and photothermal therapy of tumors.
  • a second aspect of the present invention provides a method for preparing a polymer-phospholipid nanoparticle encapsulating ICG, comprising the steps of:
  • the phospholipid is at least one of soybean lecithin, hydrogenated soybean lecithin, egg yolk lecithin, hydrogenated egg yolk lecithin, phosphatidylcholine, phosphatidylethanolamine.
  • the mass ratio of the polymer to the ICG is 1:0.8-2.4.
  • the mass ratio of the phospholipid to the ICG is 1:1-3.
  • the solvent is an aqueous ethanol solution having a mass concentration of 4%.
  • the concentration of the phospholipid is 0.15-0.75 mg/mL, and the concentration of the ICG is 0.2-1.5 mg/mL.
  • the polymer has a molecular weight of from 5,000 to 15,000.
  • the polymer is dissolved in acetonitrile or acetone to obtain the polymer solution.
  • the concentration of the polymer solution is from 1 to 5 mg/mL.
  • the volume of the solution containing the ICG-loaded polymer-phospholipid nanoparticles is from 50 mL to 1000 mL.
  • the ICG-coated polymer-phospholipid nanoparticles have a particle diameter of 20-300 nm.
  • the second aspect of the present invention provides a method for preparing a polymer-phospholipid nanoparticle coated with ICG, which comprises preparing a polymer-phospholipid nanoparticle encapsulating ICG by a one-step high-pressure homogenization method, which is simple in operation and capable of preparing a large dose.
  • the polymer-phospholipid nanoparticles encapsulating ICG provide the basis for the scale-up production and clinical research of the nanoparticles, and the prepared nanoparticles have uniform particle size and stable properties.
  • the beneficial effects of the polymer-phospholipid nanoparticles coated with ICG and the preparation method thereof provided by the present invention include the following aspects:
  • the one-step high-pressure homogenization method provided by the present invention is capable of preparing a large dose of polymer-phospholipid nanoparticle encapsulating ICG, and provides a basis for the scale production and clinical research of the nanoparticle.
  • the preparation method is simple and convenient, and is convenient for operation and promotion.
  • the polymer-phospholipid nanoparticles carrying the ICG have uniform particle size and stable properties, and no sedimentation or flocculation occurs after 30 days of standing.
  • Example 1 is a schematic view showing the preparation process of the polymer-phospholipid nanoparticles encapsulating ICG in Example 1.
  • a method for preparing a polymer-phospholipid nanoparticle encapsulating ICG comprising the steps of:
  • FIG. 1 is a schematic view showing the preparation process of the polymer-phospholipid nanoparticles encapsulating ICG of Example 1.
  • the soybean lecithin 1 and the ICG 2 are mixed and then initially emulsified, and then the polymer 3 is added. Continue emulsification
  • the ICGA-loaded PLGA-phospholipid nanoparticle 4 is obtained, and the ICG-loaded polymer-phospholipid nanoparticle comprises a core and a shell, and the inner core is formed by coating the surface of the ICG 2 with the polymer 3, and the shell is soybean lecithin 1, soybean Lecithin 1 is coated on the surface of the polymer 3.
  • the particle diameter of the nanoparticles was determined by a particle size analyzer to be 20 to 300 nm.
  • the solution containing the ICGA-loaded PLGA-phospholipid nanoparticles was allowed to stand for 30 days, and no sedimentation or flocculation occurred after 30 days, indicating that the PLGA-phospholipid nanoparticles having the core-shell structure of the encapsulated ICG were relatively stable.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • a method for preparing a polymer-phospholipid nanoparticle encapsulating ICG comprising the steps of:
  • the ICG-loaded polymer-phospholipid nanoparticles comprise a core and a shell, the core being formed by coating a polymer PLGA on the surface of the ICG, the shell being soy lecithin, and the soy lecithin coating the surface of the polymer.
  • a method for preparing a polymer-phospholipid nanoparticle encapsulating ICG comprising the steps of:
  • the ICG-loaded polymer-phospholipid nanoparticles comprise a core and a shell, the core being formed by coating a polymer PLGA on the surface of the ICG, the shell being soy lecithin, and the soy lecithin coating the surface of the polymer.
  • a method for preparing a polymer-phospholipid nanoparticle encapsulating ICG comprising the steps of:
  • ICG concentration is 1.5mg/mL, the total volume is 800mL; the mixed solution is maintained at a temperature of 90 ° C, the pressure is adjusted to 1400 bar, preliminary emulsification lmin; to obtain an emulsion;
  • the polymer-phospholipid nanoparticles encapsulating ICG include a core and an outer shell.
  • the inner core is formed by coating a polymer PLGA on the surface of the ICG.
  • the outer shell is soy lecithin, and the soybean lecithin is coated on the surface of the polymer.
  • a method for preparing a polymer-phospholipid nanoparticle encapsulating ICG comprising the steps of:
  • Soy lecithin and ICG are dissolved in a 4% aqueous solution of ethanol to obtain a mixed solution, wherein the concentration of soybean lecithin in the mixed solution is 0.5 mg/mL, and the ICG concentration is 1.5 mg/mL, the total volume. It is 800m L; the mixed solution is kept at 60 ° C, the pressure is adjusted to 800 bar, and the initial emulsification is 5 min to obtain an emulsion.
  • the ICG-loaded polymer-phospholipid nanoparticles include a core and a shell, and the core is coated with a polymer PLGA at the ICG.
  • the surface is formed, the outer shell is soy lecithin, and the soy lecithin is coated on the surface of the polymer.
  • a method for preparing a polymer-phospholipid nanoparticle encapsulating ICG comprising the steps of:
  • the polymer PLA having a molecular weight of 15000 was dissolved in acetonitrile to obtain a PLA solution having a concentration of 2.5 mg/mL, and the total volume was 10 mL ; the PLA solution was added dropwise to the preliminary emulsion, and the temperature was maintained at 90°. C, the pressure was maintained at 800 bar, and the emulsification was continued for 6 min to form 50 mL of a solution containing the PLA-phospholipid nanoparticles encapsulating the ICG, that is, the PLA-phospholipid nanoparticles encapsulating the ICG.
  • the particle size of the particles was determined by a particle size analyzer to be 20-300 nm.
  • the polymer-phospholipid nanoparticles encapsulating the ICG include an inner core and an outer shell, and the inner core is formed by coating a polymer PLA on the surface of the ICG, the outer shell is soybean lecithin, and the soybean lecithin is coated on the surface of the polymer.

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  • Veterinary Medicine (AREA)
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Abstract

本发明提供了一种包载ICG的聚合物-磷脂纳米颗粒,所述包载ICG的聚合物-磷脂纳米颗粒包括内核和外壳,所述内核由聚合物包覆在ICG表面形成,所述外壳为磷脂,所述磷脂包覆于所述聚合物表面,所述聚合物为聚乙交酯丙交酯或聚乳酸,所述包载ICG的聚合物-磷脂纳米颗粒粒径均一、性质稳定。本发明还提供了一种包载ICG的聚合物-磷脂纳米颗粒的制备方法,采用一步高压匀浆法制备包载ICG的聚合物-磷脂纳米颗粒,制备方法简单,能够制备大剂量的包载ICG的聚合物-磷脂纳米颗粒。

Description

一种包载 ICG的聚合物-磷脂纳米颗粒及其制备方法 技术领域
[0001] 本发明涉及药物载体领域, 具体涉及一种包载 ICG的聚合物 -磷脂纳米颗粒及其 制备方法。
[0002]
[0003] 背景技术
[0004] 聚合物纳米颗粒和纳米脂质体为代表的两类主流纳米载体能高效包裹和传输药 物或基因等, 成为各国科学家的研究热点。 聚合物纳米颗粒具有药物包封能力 强、 细胞内吞效率高、 体内循环吋间长等优点。 纳米脂质体具备生物安全性优 良、 传输能力高效、 制备工艺简单等特性。 结合聚合物和磷脂各自的优势制备 出的聚合物-磷脂纳米颗粒已被广泛应用于药物的传递。 但是现有的聚合物 -磷脂 纳米颗粒制备方法主要为超声法和纳米沉析法, 制备的剂量局限于 1-3毫升的实 验剂量, 限制了聚合物-磷脂纳米颗粒的产业化进程。
[0005]
[0006] 发明内容
[0007] 为解决上述问题, 本发明提供了一种包载 ICG的聚合物-磷脂纳米颗粒及其制备 方法。 本发明包载 ICG的聚合物-磷脂纳米颗粒采用一步高压匀浆法制备, 制备 方法简单, 能够制备大剂量的聚合物-磷脂纳米颗粒, 解决了现有技术中聚合物- 磷脂纳米颗粒制备剂量较小的问题。
[0008] 本发明第一方面提供了一种包载 ICG (吲哚菁绿) 的聚合物-磷脂纳米颗粒, 所 述包载 ICG的聚合物 -磷脂纳米颗粒包括内核和外壳, 所述内核由聚合物包覆在 I CG表面形成, 所述外壳为磷脂, 所述磷脂包覆于所述聚合物表面, 所述聚合物 为聚乙交酯丙交酯 (PLGA) 或聚乳酸 (PLA) 。
[0009] 优选地, 所述磷脂为大豆卵磷脂、 氢化大豆卵磷脂、 蛋黄卵磷脂、 氢化蛋黄卵 磷脂、 磷脂酰胆碱和磷脂酰乙醇胺中的至少一种。
[0010] 优选地, 所述聚合物与所述 ICG的质量比为 1:0.8-2.4, 所述磷脂与所述 ICG的质 量比为 1:1-3。
[0011] 优选地, 所述包载 ICG的聚合物-磷脂纳米颗粒的粒径为 20-300nm。
[0012] 本发明第一方面提供的包载 ICG的聚合物 -磷脂纳米颗粒粒径均一、 性质稳定, 放置 30天后未出现沉降、 凝絮现象, 所述包载 ICG的聚合物 -磷脂纳米颗粒可用 于肿瘤的靶向识别和光热治疗。
[0013] 本发明第二方面提供了一种包载 ICG的聚合物-磷脂纳米颗粒的制备方法, 包括 以下步骤:
[0014] (1) 将磷脂和 ICG溶解于溶剂中, 得到混合溶液, 在 60°C-90°C下, 压力为 500 -1400bar条件下, 将所述混合溶液进行初步乳化 l-5min, 得到乳化液;
[0015] (2) 向所述乳化液中滴加聚合物溶液, 在 60°C-90°C下, 压力为 500-1400bar条 件下, 继续乳化 4-6min, 形成含有包载 ICG的聚合物-磷脂纳米颗粒的溶液, 即得 所述含有包载 ICG的聚合物-磷脂纳米颗粒, 所述包载 ICG的聚合物 -磷脂纳米颗 粒包括内核和外壳, 所述内核由聚合物包覆在 ICG表面形成, 所述外壳为磷脂, 所述磷脂包覆于所述聚合物表面, 所述聚合物为聚乙交酯丙交酯 (PLGA) 或聚 乳酸 (PLA) 。
[0016] 优选地, 所述磷脂为大豆卵磷脂、 氢化大豆卵磷脂、 蛋黄卵磷脂、 氢化蛋黄卵 磷脂、 磷脂酰胆碱、 磷脂酰乙醇胺中的至少一种。
[0017] 优选地, 所述聚合物与所述 ICG的质量比为 1:0.8-2.4。
[0018] 优选地, 所述磷脂与所述 ICG的质量比为 1:1-3。
[0019] 优选地, 所述溶剂为质量浓度为 4%的乙醇水溶液。
[0020] 优选地, 所述混合溶液中, 所述磷脂的浓度为 0.15-0.75mg/mL, 所述 ICG的浓 度为 0.2-1.5mg/mL。
[0021] 优选地, 所述聚合物的分子量为 5000-15000。
[0022] 优选地, 将所述聚合物溶解于乙氰或丙酮中得到所述聚合物溶液。
[0023] 优选地, 所述聚合物溶液的浓度为 l-5mg/mL。
[0024] 优选地, 所述含有包载 ICG的聚合物-磷脂纳米颗粒的溶液的体积为 50mL-1000 mL。
[0025] 优选地, 所述包载 ICG的聚合物-磷脂纳米颗粒的粒径为 20-300nm。 [0026] 本发明第二方面提供的一种包载 ICG的聚合物 -磷脂纳米颗粒制备方法, 采用一 步高压匀浆法制备包载 ICG的聚合物-磷脂纳米颗粒, 操作简单, 能够制备大剂 量的包载 ICG的聚合物-磷脂纳米颗粒, 为该纳米颗粒的放大生产和临床研究提 供基础, 制备的纳米颗粒粒径均一、 性质稳定。
[0027] 综上, 本发明提供的一种包载 ICG的聚合物-磷脂纳米颗粒及其制备方法的有益 效果包括以下几个方面:
[0028] 1、 本发明提供的一步高压匀浆法能够制备大剂量的包载 ICG的聚合物-磷脂纳 米颗粒, 为该纳米颗粒的放大生产和临床研究提供基础。 该制备方法简便易行 , 便于操作推广。
[0029] 2、 所述包载 ICG的聚合物 -磷脂纳米颗粒粒径均一, 性质稳定, 放置 30天后未 出现沉降、 凝絮现象。
[0030]
[0031] 附图说明
[0032] 图 1为实施例 1包载 ICG的聚合物-磷脂纳米颗粒的制备过程示意图。
[0033]
[0034] 具体实施方式
[0035] 以下所述是本发明的优选实施方式, 应当指出, 对于本技术领域的普通技术人 员来说, 在不脱离本发明原理的前提下, 还可以做出若干改进和润饰, 这些改 进和润饰也视为本发明的保护范围。
[0036] 实施例 1 :
[0037] 一种包载 ICG的聚合物-磷脂纳米颗粒的制备方法, 包括以下步骤:
[0038] (1) 将大豆卵磷脂和 ICG溶于质量浓度为 4%的乙醇水溶液中得到混合溶液, 混合溶液中大豆卵磷脂的浓度为 0.15mg/mL, ICG浓度为 0.2mg/mL, 总体积为 40 mL; 将混合溶液保持 90°C温度下, 压力调至 500bar, 初步乳化 2min, 得到乳化 液;
[0039] (2) 将分子量为 5000的聚合物 PLGA溶于乙氰中, 得到浓度为 lmg/mL的 PLGA 溶液, 总体积为 10mL; 滴加 PLGA溶液至乳化液中, 温度保持 90°C, 压力保持 50 Obar, 继续乳化 4min, 形成 50mL含有包载 ICG的 PLGA-磷脂纳米颗粒的溶液, 即 得包载 ICG的 PLGA-磷脂纳米颗粒。
[0040] 图 1为实施例 1包载 ICG的聚合物-磷脂纳米颗粒的制备过程示意图, 从图 1可以 看出, 将大豆卵磷脂 1和 ICG 2混合后进行初步乳化, 然后加入聚合物 3继续乳化
, 得到包载 ICG的 PLGA-磷脂纳米颗粒 4, 该包载 ICG的聚合物-磷脂纳米颗粒包 括内核和外壳, 内核由聚合物 3包覆在 ICG 2表面形成, 外壳为大豆卵磷脂 1, 大 豆卵磷脂 1包覆于聚合物 3表面。
[0041] 通过粒度仪测定纳米颗粒粒径为 20-300nm。 将该含有包载 ICG的 PLGA-磷脂纳 米颗粒的溶液放置 30天, 30天后未出现沉降、 凝絮现象, 说明具有核壳结构的 包载 ICG的 PLGA-磷脂纳米颗粒性质较为稳定。
[0042] 实施例 2:
[0043] 一种包载 ICG的聚合物-磷脂纳米颗粒的制备方法, 包括以下步骤:
[0044] (1) 将大豆卵磷脂和 ICG溶于质量浓度为 4%的乙醇水溶液中得到混合溶液, 混合溶液中大豆卵磷脂的浓度范围为 0.75 mg/mL, ICG浓度为 1.5mg/mL, 总体积 为 40mL; 将混合溶液保持 60°C温度下, 压力调至 1400bar, 初步乳化 2 min, 得到 乳化液;
[0045] (2) 将分子量为 15000的聚合物 PLGA溶于乙氰中, 得到浓度为 5mg/mL的 PLG A溶液, 总体积为 10mL; 滴加 PLGA溶液至乳化液中, 温度保持 60°C, 压力保持 1400bar, 继续乳化 6min, 形成 50mL含有包载 ICG的 PLGA-磷脂纳米颗粒的溶液 , 即得包载 ICG的 PLGA-磷脂纳米颗粒。 通过粒度仪测定颗粒粒径为 20-300nm。 该包载 ICG的聚合物-磷脂纳米颗粒包括内核和外壳, 内核由聚合物 PLGA包覆在 ICG表面形成, 外壳为大豆卵磷脂, 大豆卵磷脂包覆于聚合物表面。
[0046] 实施例 3:
[0047] 一种包载 ICG的聚合物-磷脂纳米颗粒的制备方法, 包括以下步骤:
[0048] (1) 将大豆卵磷脂和 ICG溶于质量浓度为 4%的乙醇水溶液中得到混合溶液, 混合溶液中大豆卵磷脂的浓度为 0.15
mg/mL, ICG浓度为 0.2mg/mL, 总体积为 800mL; 将混合溶液保持 80°C温度下, 压力调至 500bar, 初步乳化 2 min, 得到乳化液;
[0049] (2) 将分子量为 10000的聚合物 PLGA溶于乙氰中, 得到浓度为 lmg/mL的 PLG A溶液, 总体积为 200mL; 滴加 PLGA溶液至乳化液中, 温度保持 80°C, 压力保 持 500bar, 继续乳化 4min, 形成 lOOOmL含有包载 ICG的 PLGA-磷脂纳米颗粒的溶 液, 即得包载 ICG的 PLGA-磷脂纳米颗粒。 通过粒度仪测定颗粒粒径为 20-300nm 。 该包载 ICG的聚合物 -磷脂纳米颗粒包括内核和外壳, 内核由聚合物 PLGA包覆 在 ICG表面形成, 外壳为大豆卵磷脂, 大豆卵磷脂包覆于聚合物表面。
[0050] 实施例 4:
[0051] 一种包载 ICG的聚合物-磷脂纳米颗粒的制备方法, 包括以下步骤:
[0052] (1) 将大豆卵磷脂和 ICG溶于质量浓度为 4%乙醇水溶液中得到混合溶液, 混 合溶液中大豆卵磷脂的浓度为 0.75
mg/mL, ICG浓度为 1.5mg/mL, 总体积为 800mL; 将混合溶液保持 90°C温度下, 压力调至 1400bar, 初步乳化 lmin; 得到乳化液;
[0053] (2) 将分子量为 15000的聚合物 PLGA溶于乙氰中, 得到浓度为 5mg/ml的 PLG A溶液, 总体积为 200mL; 滴加 PLGA溶液至乳化液中, 温度保持 90°C, 压力保 持 1400bar, 继续乳化 6min, 形成 lOOOmL含有包载 ICG的 PLGA-磷脂纳米颗粒的 溶液, 即得包载 ICG的 PLGA-磷脂纳米颗粒。 通过粒度仪测定颗粒粒径为 20-300 nm。 该包载 ICG的聚合物 -磷脂纳米颗粒包括内核和外壳, 内核由聚合物 PLGA包 覆在 ICG表面形成, 外壳为大豆卵磷脂, 大豆卵磷脂包覆于聚合物表面。
[0054] 实施例 5:
[0055] 一种包载 ICG的聚合物-磷脂纳米颗粒的制备方法, 包括以下步骤:
[0056] (1) 将大豆卵磷脂和 ICG溶于质量浓度为 4%乙醇水溶液中得到混合溶液, 混 合溶液中大豆卵磷脂的浓度为 0.5mg/mL, ICG浓度为 1.5mg/mL, 总体积为 800m L; 将混合溶液保持 60°C温度下, 压力调至 800bar, 初步乳化 5min, 得到乳化液
[0057] (2) 将分子量为 15000的聚合物 PLGA溶于乙氰中, 得到浓度为 2.5mg/mL的 PL GA溶液, 总体积为 200mL; 滴加 PLGA溶液至乳化液中, 温度保持 60°C, 压力保 持 800bar, 继续乳化 4min, 形成 lOOOmL含有包载 ICG的 PLGA-磷脂纳米颗粒, 即 得包载 ICG的 PLGA-磷脂纳米颗粒。 通过粒度仪测定颗粒粒径为 20-300nm。 该包 载 ICG的聚合物-磷脂纳米颗粒包括内核和外壳, 内核由聚合物 PLGA包覆在 ICG 表面形成, 外壳为大豆卵磷脂, 大豆卵磷脂包覆于聚合物表面。
[0058] 实施例 6:
[0059] 一种包载 ICG的聚合物-磷脂纳米颗粒的制备方法, 包括以下步骤:
[0060] (1) 将大豆卵磷脂和 ICG溶于质量浓度为 4%乙醇水溶液中得到混合溶液, 混 合溶液中大豆卵磷脂的浓度为 0.5mg/mL, ICG浓度为 1.5mg/mL, 总体积为 40mL ; 将混合溶液保持 90°C温度下, 压力调至 800bar, 初步乳化 2 min; 得到乳化液
[0061] (2) 将分子量为 15000的聚合物 PLA溶于乙氰中, 得到浓度为 2.5mg/mL的 PLA 溶液, 总体积为 10mL; 滴加 PLA溶液至初步乳化液中, 温度保持 90°C, 压力保 持 800bar, 继续乳化 6min, 形成 50mL的含有包载 ICG的 PLA-磷脂纳米颗粒的溶 液, 即得包载 ICG的 PLA-磷脂纳米颗粒。 通过粒度仪测定颗粒粒径为 20-300nm 。 该包载 ICG的聚合物 -磷脂纳米颗粒包括内核和外壳, 内核由聚合物 PLA包覆在 ICG表面形成, 外壳为大豆卵磷脂, 大豆卵磷脂包覆于聚合物表面。
[0062] 以上所述实施例仅表达了本发明的几种实施方式, 其描述较为具体和详细, 但 并不能因此而理解为对本发明专利范围的限制。 应当指出的是, 对于本领域的 普通技术人员来说, 在不脱离本发明构思的前提下, 还可以做出若干变形和改 进, 这些都属于本发明的保护范围。 因此, 本发明专利的保护范围应以所附权 利要求为准。
技术问题
问题的解决方案
发明的有益效果

Claims

权利要求书
[权利要求 1] 一种包载 ICG的聚合物-磷脂纳米颗粒, 其特征在于, 所述包载 ICG的 聚合物 -磷脂纳米颗粒包括内核和外壳, 所述内核由聚合物包覆在 ICG 表面形成, 所述外壳为磷脂, 所述磷脂包覆于所述聚合物表面, 所述 聚合物为聚乙交酯丙交酯或聚乳酸。
[权利要求 2] 如权利要求 1所述的纳米颗粒, 其特征在于, 所述磷脂为大豆卵磷脂
、 氢化大豆卵磷脂、 蛋黄卵磷脂、 氢化蛋黄卵磷脂、 磷脂酰胆碱和磷 脂酰乙醇胺中的至少一种。
[权利要求 3] 如权利要求 1所述的纳米颗粒, 其特征在于, 所述聚合物与所述 ICG 的质量比为 1:0.8-2.4, 所述磷脂与所述 ICG的质量比为 1:1-3。
[权利要求 4] 如权利要求 1所述的纳米颗粒, 其特征在于, 所述包载 ICG的聚合物- 磷脂纳米颗粒的粒径为 20-300nm。
[权利要求 5] —种包载 ICG的聚合物-磷脂纳米颗粒的制备方法, 其特征在于, 包括 以下步骤:
(1) 将磷脂和 ICG溶解于溶剂中, 得到混合溶液; 在 60°C-90°C下, 压力为 500-1400bar条件下, 将所述混合溶液进行初步乳化 l-5min, 得 到乳化液;
(2) 向所述乳化液中滴加聚合物溶液, 在 60°C-90°C下, 压力为 500-1 400bar条件下, 继续乳化 4-6min, 形成含有包载 ICG的聚合物-磷脂纳 米颗粒的溶液, 即得所述含有包载 ICG的聚合物-磷脂纳米颗粒, 所述 包载 ICG的聚合物 -磷脂纳米颗粒包括内核和外壳, 所述内核由聚合物 包覆在 ICG表面形成, 所述外壳为磷脂, 所述磷脂包覆于所述聚合物 表面, 所述聚合物为聚乙交酯丙交酯或聚乳酸。
[权利要求 6] 如权利要求 5所述的纳米颗粒的制备方法, 其特征在于, 所述磷脂为 大豆卵磷脂、 氢化大豆卵磷脂、 蛋黄卵磷脂、 氢化蛋黄卵磷脂、 磷脂 酰胆碱和磷脂酰乙醇胺中的至少一种。
[权利要求 7] 如权利要求 5所述的纳米颗粒的制备方法, 其特征在于, 所述聚合物 与所述 ICG的质量比为 1:0.
8-2.4, 所述磷脂与所述 ICG的质量比为 1:1- [权利要求 8] 如权利要求 5所述的纳米颗粒的制备方法, 其特征在于, 所述混合溶 液中, 所述磷脂的浓度为 0.15-0.75mg/mL, 所述 ICG的浓度为 0.2-1.5
Figure imgf000010_0001
[权利要求 9] 如权利要求 5所述的纳米颗粒的制备方法, 其特征在于, 所述聚合物 溶液的浓度为 l-5mg/mL。
[权利要求 10] 如权利要求 5所述的纳米颗粒的制备方法, 其特征在于, 所述包载 IC
G的聚合物-磷脂纳米颗粒的粒径为 20-300nm。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102533248A (zh) * 2010-12-27 2012-07-04 中国科学院深圳先进技术研究院 荧光纳米探针及其制备方法
CN103861123A (zh) * 2012-12-17 2014-06-18 中国科学院深圳先进技术研究院 诊疗一体化纳米材料、诊疗一体化纳米制剂及其制备方法
CN104587467A (zh) * 2014-12-26 2015-05-06 深圳先进技术研究院 一种包载icg的聚合物-磷脂纳米颗粒及其制备方法

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Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102533248A (zh) * 2010-12-27 2012-07-04 中国科学院深圳先进技术研究院 荧光纳米探针及其制备方法
CN103861123A (zh) * 2012-12-17 2014-06-18 中国科学院深圳先进技术研究院 诊疗一体化纳米材料、诊疗一体化纳米制剂及其制备方法
CN104587467A (zh) * 2014-12-26 2015-05-06 深圳先进技术研究院 一种包载icg的聚合物-磷脂纳米颗粒及其制备方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZHAO, PENGFEI ET AL.: "Improving Drug Accumulation and Photothermal Efficacy in Tumor Depending on Size of ICG Loaded Lipid-Polymer Nanoparticles", BIOMATERIALS, vol. 35, no. 23, 26 April 2014 (2014-04-26), pages 6037 - 6046, XP028664973, DOI: doi:10.1016/j.biomaterials.2014.04.019 *

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