CN115154613B - pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备及应用 - Google Patents
pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备及应用 Download PDFInfo
- Publication number
- CN115154613B CN115154613B CN202210888949.4A CN202210888949A CN115154613B CN 115154613 B CN115154613 B CN 115154613B CN 202210888949 A CN202210888949 A CN 202210888949A CN 115154613 B CN115154613 B CN 115154613B
- Authority
- CN
- China
- Prior art keywords
- modified hydroxyapatite
- tannic acid
- nano modified
- iron
- nano
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XYJRXVWERLGGKC-UHFFFAOYSA-D pentacalcium;hydroxide;triphosphate Chemical class [OH-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O XYJRXVWERLGGKC-UHFFFAOYSA-D 0.000 title claims abstract description 89
- 239000001263 FEMA 3042 Substances 0.000 title claims abstract description 62
- 229940033123 tannic acid Drugs 0.000 title claims abstract description 62
- 229920002258 tannic acid Polymers 0.000 title claims abstract description 62
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- MWWSFMDVAYGXBV-RUELKSSGSA-N Doxorubicin hydrochloride Chemical compound Cl.O([C@H]1C[C@@](O)(CC=2C(O)=C3C(=O)C=4C=CC=C(C=4C(=O)C3=C(O)C=21)OC)C(=O)CO)[C@H]1C[C@H](N)[C@H](O)[C@H](C)O1 MWWSFMDVAYGXBV-RUELKSSGSA-N 0.000 claims abstract description 44
- 229960002918 doxorubicin hydrochloride Drugs 0.000 claims abstract description 44
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 10
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 15
- 239000012153 distilled water Substances 0.000 claims description 13
- 229910001437 manganese ion Inorganic materials 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- TUSDEZXZIZRFGC-UHFFFAOYSA-N 1-O-galloyl-3,6-(R)-HHDP-beta-D-glucose Natural products OC1C(O2)COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC1C(O)C2OC(=O)C1=CC(O)=C(O)C(O)=C1 TUSDEZXZIZRFGC-UHFFFAOYSA-N 0.000 claims description 10
- LRBQNJMCXXYXIU-PPKXGCFTSA-N Penta-digallate-beta-D-glucose Natural products OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-PPKXGCFTSA-N 0.000 claims description 10
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 10
- LRBQNJMCXXYXIU-NRMVVENXSA-N tannic acid Chemical compound OC1=C(O)C(O)=CC(C(=O)OC=2C(=C(O)C=C(C=2)C(=O)OC[C@@H]2[C@H]([C@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)[C@@H](OC(=O)C=3C=C(OC(=O)C=4C=C(O)C(O)=C(O)C=4)C(O)=C(O)C=3)O2)OC(=O)C=2C=C(OC(=O)C=3C=C(O)C(O)=C(O)C=3)C(O)=C(O)C=2)O)=C1 LRBQNJMCXXYXIU-NRMVVENXSA-N 0.000 claims description 10
- 235000015523 tannic acid Nutrition 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000007864 aqueous solution Substances 0.000 claims description 9
- 229920002125 Sokalan® Polymers 0.000 claims description 8
- 239000004584 polyacrylic acid Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000002244 precipitate Substances 0.000 claims description 6
- 229910021578 Iron(III) chloride Inorganic materials 0.000 claims description 5
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 claims description 5
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 238000001291 vacuum drying Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 3
- 230000032683 aging Effects 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 3
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 3
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003760 magnetic stirring Methods 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 claims description 2
- 229910001424 calcium ion Inorganic materials 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000003814 drug Substances 0.000 abstract description 13
- 206010028980 Neoplasm Diseases 0.000 abstract description 12
- 229940079593 drug Drugs 0.000 abstract description 11
- 238000002595 magnetic resonance imaging Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 239000003937 drug carrier Substances 0.000 abstract description 8
- 239000002246 antineoplastic agent Substances 0.000 abstract description 6
- 230000017531 blood circulation Effects 0.000 abstract description 6
- 229940044683 chemotherapy drug Drugs 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 238000011068 loading method Methods 0.000 abstract description 4
- 238000002512 chemotherapy Methods 0.000 abstract description 3
- 238000012984 biological imaging Methods 0.000 abstract description 2
- 238000003759 clinical diagnosis Methods 0.000 abstract description 2
- 239000002405 nuclear magnetic resonance imaging agent Substances 0.000 abstract description 2
- 230000004043 responsiveness Effects 0.000 abstract description 2
- 231100000419 toxicity Toxicity 0.000 abstract description 2
- 230000001988 toxicity Effects 0.000 abstract description 2
- 230000002194 synthesizing effect Effects 0.000 abstract 2
- 229920001864 tannin Polymers 0.000 abstract 1
- 239000001648 tannin Substances 0.000 abstract 1
- 239000007853 buffer solution Substances 0.000 description 15
- 229910052588 hydroxylapatite Inorganic materials 0.000 description 12
- 238000002474 experimental method Methods 0.000 description 6
- 239000006228 supernatant Substances 0.000 description 6
- 239000011148 porous material Substances 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000002378 acidificating effect Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052688 Gadolinium Inorganic materials 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002872 contrast media Substances 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000001727 in vivo Methods 0.000 description 2
- 238000002354 inductively-coupled plasma atomic emission spectroscopy Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002086 nanomaterial Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000002798 spectrophotometry method Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 210000004881 tumor cell Anatomy 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 239000008366 buffered solution Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 150000004698 iron complex Chemical class 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000005298 paramagnetic effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/02—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/70—Carbohydrates; Sugars; Derivatives thereof
- A61K31/7028—Compounds having saccharide radicals attached to non-saccharide compounds by glycosidic linkages
- A61K31/7034—Compounds having saccharide radicals attached to non-saccharide compounds by glycosidic linkages attached to a carbocyclic compound, e.g. phloridzin
- A61K31/704—Compounds having saccharide radicals attached to non-saccharide compounds by glycosidic linkages attached to a carbocyclic compound, e.g. phloridzin attached to a condensed carbocyclic ring system, e.g. sennosides, thiocolchicosides, escin, daunorubicin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K47/00—Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
- A61K47/06—Organic compounds, e.g. natural or synthetic hydrocarbons, polyolefins, mineral oil, petrolatum or ozokerite
- A61K47/26—Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharides; Derivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
- A61K49/08—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by the carrier
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K49/00—Preparations for testing in vivo
- A61K49/06—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations
- A61K49/08—Nuclear magnetic resonance [NMR] contrast preparations; Magnetic resonance imaging [MRI] contrast preparations characterised by the carrier
- A61K49/10—Organic compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P35/00—Antineoplastic agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B25/00—Phosphorus; Compounds thereof
- C01B25/16—Oxyacids of phosphorus; Salts thereof
- C01B25/26—Phosphates
- C01B25/32—Phosphates of magnesium, calcium, strontium, or barium
- C01B25/325—Preparation by double decomposition
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Epidemiology (AREA)
- Medicinal Chemistry (AREA)
- Pharmacology & Pharmacy (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Molecular Biology (AREA)
- Radiology & Medical Imaging (AREA)
- Biochemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
- Medicinal Preparation (AREA)
Abstract
一种对pH敏感的纳米改性羟磷灰石/铁‑单宁的制备方法及其应用,它涉及一种药物负载与生物成像的方法。本发明的目的是要解决一般药物载体化疗效率低、毒性大、化疗药物未到达肿瘤部位就过早释放,无法实现较长时间的血液循环的问题,并且希望药物载体同时可作为磁共振成像造影剂应用于肿瘤的临床诊断。方法:一、纳米改性羟磷灰石的合成;二、含盐酸阿霉素的纳米改性羟磷灰石的合成;三、含盐酸阿霉素的纳米改性羟磷灰石/铁‑单宁酸的合成。本发明所制备的纳米改性羟磷灰石/铁‑单宁酸不仅具有良好的分散性和较低的生物毒性,还具有灵敏的pH响应性,可以实现较长时间的药物缓释和较好的磁共振成像效果。
Description
技术领域
本发明提供一种对pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备及应用,属于生物材料技术领域。
背景技术
在临床肿瘤治疗中,化疗作为一种常用治疗手段存在着治疗效率低和毒副作用大的缺点,使用复合纳米材料作为化疗药物载体可以有效克服这些缺点。纳米羟磷灰石因其良好的生物相容性,强吸附性和对多种肿瘤细胞的抑制作用,可以作为优良的药物载体应用于肿瘤治疗,但是其天然的团聚趋势导致其分散性和稳定性不足,阻碍了在肿瘤治疗中的进一步应用。因此,在制备过程中加入表面活性剂作为模板或稳定剂调控纳米羟磷灰石尺寸及分散性,并通过掺杂离子优化其性能使其同时具有优异的生物成像与药物负载性能是目前关注的热点。例如在公开的发明专利CN 109437139 A中公布了一种钆基纳米羟磷灰石造影剂的制备方法,并将其应用于药物负载和磁共振成像,虽然与商用的Gd-DTPA造影剂相比具有更好的磁共振成像效果,但游离的钆具有毒性高和代谢过快的缺陷,不适用于肿瘤的诊断与治疗。
通常,羟磷灰石在生物体内递送药物过程中存在由于材料本身降解导致药物未达到病灶过早释放的缺陷,无法实现较长的血液循环。例如在公开的发明专利CN 104587488A中公布了一种具有pH响应性和细胞靶向的介孔羟磷灰石纳米药物载体的制备方法,但是该药物载体在pH=7.4的PBS缓冲溶液中24h内即释放超过20%盐酸阿霉素,说明该药物载体在血液循环过程中就存在较多药物浪费。因此,寻找一种简便且生物毒性低的制备方法制备对pH具有高敏感性的复合纳米材料,延长复合材料在体内的缓释时间,减少在血液循环过程中的药物浪费以提高药物载体治疗效果显得尤为重要。
发明内容
本发明的目的是要解决一般药物载体化疗效率低、毒性大、化疗药物未到达肿瘤部位就过早释放,无法实现较长时间的血液循环的问题,并且希望药物载体同时可作为磁共振成像造影剂应用于肿瘤的临床诊断。本发明采用液相均相沉淀法制备纳米改性羟磷灰石,并将其与化疗药物和铁-单宁酸网络结合构建对pH敏感的纳米改性羟磷灰石/铁-单宁酸应用于肿瘤诊断和治疗。
1.一种对pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备方法,具体是按照以下步骤完成:
一、纳米改性羟磷灰石的合成:将硝酸钙、硝酸锰、聚丙烯酸和20mL~40mL蒸馏水混合加入烧杯中在超声条件下充分溶解,在400rpm~500rpm转速条件下磁力搅拌1h~2h,向混合溶液中加入5mL~15mL磷酸氢二铵水溶液,滴加质量分数为25%~28%的氨水使混合体系保持pH=9~10,将混合体系转移到圆底烧瓶中,油浴加热到80℃~90℃,在300rpm~400rpm转速条件下搅拌1h~1.5h,室温继续搅拌12h~24h,反应结束后静置陈化12h~24h,用蒸馏水和乙醇交替洗涤3~4次,离心收集沉淀,在50℃~60℃条件下真空烘干,得到纳米改性羟磷灰石;步骤一中所述硝酸钙和硝酸锰的摩尔比为1:(0.01~0.25);步骤一中所述混合溶液中钙离子、锰离子的总和与磷酸根离子的摩尔比为1:(0.5~0.7);步骤一中所述聚丙烯酸的分子量为~2000;步骤一中所述聚丙烯酸的质量与蒸馏水的体积比为1g:(20mL~40mL);
二、含盐酸阿霉素的纳米改性羟磷灰石的合成:将步骤一中制备的纳米改性羟磷灰石、盐酸阿霉素和10mL~30mL蒸馏水加入烧杯中在超声条件下混合,在400rpm~500rpm转速条件下黑暗中磁力搅拌48h~72h;步骤二中所述纳米改性羟磷灰石的质量与蒸馏水的体积比为1g:(100mL~200mL);步骤二中所述盐酸阿霉素与纳米改性羟磷灰石的质量比为1:(10~20);
三、含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸的合成:向步骤二磁力搅拌48h~72h后的混合体系中加入100μL ~300μL单宁酸水溶液和100μL~300μL氯化铁水溶液,并快速超声震荡,加入氢氧化钠溶液调节混合体系pH=8~8.5,室温搅拌1h~2h后离心收集沉淀,在50℃~60℃下真空干燥,得到了含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸;步骤三中所述单宁酸和氯化铁的摩尔比为1:(1~1.5);步骤三中所述纳米改性羟磷灰石的质量与单宁酸的摩尔比为1g:(0.05mol~0.1mol);
2.对pH敏感的纳米改性羟磷灰石/铁-单宁酸用于肿瘤诊断和治疗,具体是按照以下步骤进行:
一、含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸在不同pH环境中的缓释实验:分别将10mg~20mg含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸加入20~40mL pH=4.5和pH=7.4的缓冲溶液中,在37℃条件下恒温振荡96h~144h,每隔一段时间取3mL~5mL上清液用可见分光光度法测定上清液中盐酸阿霉素的含量,同时补充相同体积的缓冲溶液,为了设置对照组,将10mg~20mg未包覆铁-单宁酸网络的含盐酸阿霉素的纳米改性羟磷灰石在相同条件下进行缓释实验;
二、检测含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸的磁共振成像效果:分别将10mg~20mg含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸加入20~40mL pH=4.5和pH=7.4的缓冲溶液中,在37℃条件下恒温振荡4h~12h,每隔一段时间取3mL~5mL上清液,通过ICP-OES分析检测锰离子的释放量,并进行1T磁共振成像扫描。未与含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸混合的缓冲溶液作为对照组置于试管中,进行1T磁共振成像扫描。
有益效果:
1、本发明制备的纳米改性羟磷灰石/铁-单宁酸在液相中分散性与稳定性良好,不易沉淀,可以有效避免材料在人体内循环时堵塞的问题;
2、本发明制备的纳米改性羟磷灰石为介孔结构,比表面积大于50m2/g,有利于载药,纳米改性羟磷灰石/铁-单宁酸对药物的负载效率大于90%,载药量为52~60mg/g;
3、本发明制备的纳米改性羟磷灰石/铁-单宁酸表面包覆单宁酸和铁的络合物,具有良好生物相容性,在中性条件下(pH=7.4)铁-单宁酸网络降解缓慢,有效减少了化疗药物在血液循环时的释放,在酸性条件下(pH=4.5)单宁酸中的酚羟基被质子化导致铁-单宁酸网络交联不稳定从而快速降解,释放化疗药物,且纳米改性羟磷灰石/铁-单宁酸降解后产生的游离离子无生物毒性,可安全使用;
4、本发明制备的纳米改性羟磷灰石/铁-单宁酸降解释放的锰离子具有良好的顺磁性,相较重金属来说具有更低的生物毒性,在非稀土金属中具有较好的成像性能,可以有效增强肿瘤部位的磁共振成像加权信号。
附图说明
图1是实施例1中纳米改性羟磷灰石/铁-单宁酸的透射电镜图;由图1a可以看出,羟磷灰石为棒状结构,长度为50~100nm,宽度为5~10nm,分散性良好,由图1a中的插图可以看出聚丙烯酸生长在羟磷灰石表面;由图1b可以看出,铁-单宁酸网络包覆在纳米改性羟磷灰石表面;
图2是实施例1中纳米改性羟磷灰石X射线衍射图谱;从图2中可以看出,采用液相均相沉淀法制备的纳米改性羟磷灰石X射线衍射图谱与晶体材料粉末衍射卡片中的09-0432卡片一致,证明成功制备出了纳米改性羟磷灰石,锰离子掺杂的纳米改性羟磷灰石均显示出纯羟磷灰石的特征峰,说明锰离子没有抑制羟磷灰石的晶体结构;
图3是实施例1中纳米改性羟磷灰石的氮气等温吸脱附曲线;实施例1制备的纳米改性羟磷灰石的吸附等温线为IV型,等温线滞留回环呈狭长裂口型,说明该纳米改性羟磷灰石孔型较为统一,孔径分布窄,符合多孔材料的介孔尺寸分布特征,比表面积为72.63m2/g,孔体积为0.38cm3/g,该材料的高比表面积和高孔体积允许容纳大量药物分子或大分子药物,可以防止药物在恶劣环境中降解或失活;
图4是实施例2中含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸在模拟肿瘤细胞内环境的缓冲溶液中盐酸阿霉素的释放行为;从图4可以看出,实施例1制备的纳米改性羟磷灰石/铁-单宁酸在pH=4.5时,单宁酸中的酚羟基被质子化导致铁-单宁酸网络交联不稳定从而快速降解,前3h就有11.80%的盐酸阿霉素迅速释放,48h后释放的盐酸阿霉素量达到45.4%,并能长时间持续释放盐酸阿霉素,这说明实施例1制备的纳米改性羟磷灰石/铁-单宁酸具有pH响应性能,能在酸性环境中快速释放化疗药物;
图5是实施例2中含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸与未包覆铁-单宁酸网络的纳米改性羟磷灰石在模拟人血液环境(pH=7.4)的缓冲溶液中盐酸阿霉素的释放行为;从图5可以看出,未包覆铁-单宁酸网络的纳米改性羟磷灰石在实验开始即释放盐酸阿霉素,在24h内的释放量超过10%,最终释放量为15.1%;铁-单宁酸网络包覆的纳米改性羟磷灰石6h~8h后才开始释放盐酸阿霉素,24h后仅释放7.4%的盐酸阿霉素,这说明实施例1制备的纳米改性羟磷灰石/铁-单宁酸在中性环境中能够减少盐酸阿霉素的释放和损失;
图6是实施例2中含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸在pH=7.4和pH=4.5的缓冲溶液中锰离子的释放行为;从图6可以看出,当pH=7.4时,4小时内锰离子的的释放量小于10%;pH=4.5时,4小时内锰离子的释放量达到65%以上;这说明实施例1制备的纳米改性羟磷灰石/铁-单宁酸具有pH响应性能,能在酸性环境中快速释放锰离子;
图7是实施例2中含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸在pH=7.4和pH=4.5的缓冲溶液中1h,2h和4h的T1加权图像;从图7可以看出,pH=4.5的缓冲溶液中T1加权图像的信号强度明显高于pH=7.4的缓冲溶液中T1加权图像的信号强度;并且在pH=4.5的缓冲溶液中,1小时内T1加权图像的信号强度快速增强,4小时内逐渐增强;这说明酸性条件下锰离子能在短时间内快速释放并在后续时间内持续缓慢释放,这与图6中锰离子的释放行为一致。
具体实施方式
实施例1:
一种对pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备,具体实验方法如下:
一、纳米改性羟磷灰石的合成:将19mmol硝酸钙、1mmol硝酸锰、1g聚丙烯酸和30mL蒸馏水混合加入烧杯中在超声条件下充分溶解,在400rpm转速条件下磁力搅拌1h,向混合溶液中加入5mL磷酸氢二铵水溶液(2.4mol/L),滴加质量分数为25%~28%的氨水使混合体系保持pH=10,将混合体系转移到圆底烧瓶中,油浴加热到90℃,在400rpm转速条件下搅拌1h,室温继续搅拌24h,反应结束后静置陈化24h,用蒸馏水和乙醇交替洗涤3次,离心收集沉淀,在60℃条件下真空烘干,得到纳米改性羟磷灰石;
二、含盐酸阿霉素的纳米改性羟磷灰石的合成:将60mg步骤一中制备的纳米改性羟磷灰石、3.5mg盐酸阿霉素和10mL蒸馏水在超声条件下加入烧杯中混合,在500rpm转速条件下黑暗中磁力搅拌72h;
三、含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸的合成:向步骤二磁力搅拌72h后的混合体系中加入200μL单宁酸水溶液(24mmol/L)和200μL氯化铁水溶液(24mmol/L),并快速超声震荡,加入氢氧化钠溶液调节混合体系pH=8,室温搅拌1h后离心收集沉淀,在60℃下真空干燥,得到了含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸;
实施例2:
对pH敏感的纳米改性羟磷灰石/铁-单宁酸用于肿瘤诊断和治疗,具体是按照以下步骤进行:
一、含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸在不同pH环境中的缓释实验:分别将10mg含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸加入30mL pH=4.5和pH=7.4的缓冲溶液中,在37℃条件下恒温振荡124h,分别在第1h、2h、3h、5h、6h、8h、9h、10h、11h、12h、13h、24h、52h、76h、100h、124h取3mL上清液用可见分光光度法测定上清液中盐酸阿霉素的含量,同时补充3ml的缓冲溶液;为了设置对照组,将10mg未包覆铁-单宁酸网络的含盐酸阿霉素的纳米改性羟磷灰石在相同条件下进行缓释实验;
二、检测含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸的磁共振成像效果:分别将10mg含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸加入30mL pH=4.5和pH=7.4的缓冲溶液中,在37℃条件下恒温振荡4h。分别在第1h、2h和4h取3mL上清液,通过ICP-OES分析检测锰离子的释放量,并进行1T磁共振成像扫描。未与含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸混合的缓冲溶液作为对照组置于试管中,进行1T磁共振成像扫描。
Claims (1)
1.一种对pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备方法,其特征在于它按以下步骤制备的:
一、纳米改性羟磷灰石的合成:将硝酸钙、硝酸锰、聚丙烯酸和20mL~40mL蒸馏水混合加入烧杯中在超声条件下充分溶解,在400rpm~500rpm转速条件下磁力搅拌1h~2h,向混合溶液中加入5mL~15mL磷酸氢二铵水溶液,滴加质量分数为25%~28%的氨水使混合体系保持pH=9~10,将混合体系转移到圆底烧瓶中,油浴加热到80℃~90℃,在300rpm~400rpm转速条件下搅拌1h~1.5h,室温继续搅拌12h~24h,反应结束后静置陈化12h~24h,用蒸馏水和乙醇交替洗涤3~4次,离心收集沉淀,在50℃~60℃条件下真空烘干,得到纳米改性羟磷灰石;步骤一中所述硝酸钙和硝酸锰的摩尔比为1:(0.01~0.25);步骤一中所述混合溶液中钙离子、锰离子的总和与磷酸根离子的摩尔比为1:(0.5~0.7);步骤一中所述聚丙烯酸的分子量为~2000;步骤一中所述聚丙烯酸的质量与蒸馏水的体积比为1g:(20mL~40mL);
二、含盐酸阿霉素的纳米改性羟磷灰石的合成:将步骤一中制备的纳米改性羟磷灰石、盐酸阿霉素和10mL~30mL蒸馏水加入烧杯中在超声条件下混合,在400rpm~500rpm转速条件下黑暗中磁力搅拌48h~72h;步骤二中所述纳米改性羟磷灰石的质量与蒸馏水的体积比为1g:(100mL~200mL);步骤二中所述盐酸阿霉素与纳米改性羟磷灰石的质量比为1:(10~20);
三、含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸的合成:向步骤二磁力搅拌48h~72h后的混合体系中加入100μL~300μL单宁酸水溶液和100μL~300μL氯化铁水溶液,并快速超声震荡,加入氢氧化钠溶液调节混合体系pH=8~8.5,室温搅拌1h~2h后离心收集沉淀,在50℃~60℃下真空干燥,得到了含盐酸阿霉素的纳米改性羟磷灰石/铁-单宁酸;步骤三中所述单宁酸和氯化铁的摩尔比为1:(1~1.5);步骤三中所述纳米改性羟磷灰石的质量与单宁酸的摩尔比为1g:(0.05mol~0.1mol)。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210888949.4A CN115154613B (zh) | 2022-07-27 | 2022-07-27 | pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备及应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210888949.4A CN115154613B (zh) | 2022-07-27 | 2022-07-27 | pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备及应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN115154613A CN115154613A (zh) | 2022-10-11 |
CN115154613B true CN115154613B (zh) | 2023-10-31 |
Family
ID=83497861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210888949.4A Active CN115154613B (zh) | 2022-07-27 | 2022-07-27 | pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备及应用 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115154613B (zh) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115645381B (zh) * | 2022-10-20 | 2023-05-30 | 深圳大佛药业股份有限公司 | 一种盐酸左沙丁胺醇雾化吸入溶液缓释剂及其制备方法 |
CN118340172B (zh) * | 2024-06-17 | 2024-09-03 | 山东净霸制药有限公司 | 一种活性二氧化氯消毒剂及其制备方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104548108A (zh) * | 2015-02-02 | 2015-04-29 | 哈尔滨工业大学 | 一种pH响应性核壳结构的介孔磷灰石纳米药物载体的制备方法 |
CN104587488A (zh) * | 2015-02-02 | 2015-05-06 | 哈尔滨工业大学 | 一种对肝癌细胞具有pH响应性和细胞靶向的介孔磷灰石纳米药物载体的制备方法 |
CN106420661A (zh) * | 2016-09-20 | 2017-02-22 | 山东理工大学 | 一种在酸性溶液中快速释放布洛芬的羟基磷灰石/单宁酸复合颗粒的制备方法 |
CN107022207A (zh) * | 2017-04-24 | 2017-08-08 | 山东理工大学 | 一种含亚甲基蓝的羟基磷灰石@单宁酸‑铁/二氧化钛绿色颜料的制备方法 |
CN113546087A (zh) * | 2021-07-01 | 2021-10-26 | 东华大学 | 一种纤连蛋白包覆的单宁酸/铁配合物的载药纳米材料及其制备和应用 |
-
2022
- 2022-07-27 CN CN202210888949.4A patent/CN115154613B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104548108A (zh) * | 2015-02-02 | 2015-04-29 | 哈尔滨工业大学 | 一种pH响应性核壳结构的介孔磷灰石纳米药物载体的制备方法 |
CN104587488A (zh) * | 2015-02-02 | 2015-05-06 | 哈尔滨工业大学 | 一种对肝癌细胞具有pH响应性和细胞靶向的介孔磷灰石纳米药物载体的制备方法 |
CN106420661A (zh) * | 2016-09-20 | 2017-02-22 | 山东理工大学 | 一种在酸性溶液中快速释放布洛芬的羟基磷灰石/单宁酸复合颗粒的制备方法 |
CN107022207A (zh) * | 2017-04-24 | 2017-08-08 | 山东理工大学 | 一种含亚甲基蓝的羟基磷灰石@单宁酸‑铁/二氧化钛绿色颜料的制备方法 |
CN113546087A (zh) * | 2021-07-01 | 2021-10-26 | 东华大学 | 一种纤连蛋白包覆的单宁酸/铁配合物的载药纳米材料及其制备和应用 |
Non-Patent Citations (2)
Title |
---|
In vivo study of polyurethane and tannin-modified hydroxyapatite composites for calvarial regeneration;Xinggui Tian等;《Journal of Tissue Engineering》;第11卷;第1-9页 * |
pH敏感的纳米羟基磷灰石基电荷反转型给药系统的制备;杨志杰等;《合成树脂及塑料》;第38卷(第3期);第24-28页 * |
Also Published As
Publication number | Publication date |
---|---|
CN115154613A (zh) | 2022-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN115154613B (zh) | pH敏感的纳米改性羟磷灰石/铁-单宁酸的制备及应用 | |
Yang et al. | A magnetic, luminescent and mesoporous core–shell structured composite material as drug carrier | |
Della Rocca et al. | Nanoscale metal–organic frameworks: magnetic resonance imaging contrast agents and beyond | |
Yang et al. | Luminescence functionalization of mesoporous silica with different morphologies and applications as drug delivery systems | |
Liu et al. | Magnetic silica spheres with large nanopores for nucleic acid adsorption and cellular uptake | |
Benyettou et al. | Microwave assisted nanoparticle surface functionalization | |
Dong et al. | Highly porous, water‐soluble, superparamagnetic, and biocompatible magnetite nanocrystal clusters for targeted drug delivery | |
CN102020258B (zh) | 一种磁性荧光羟基磷灰石纳米复合结构的制备方法 | |
Sahu et al. | Multifunctional magnetic fluorescent hybrid nanoparticles as carriers for the hydrophobic anticancer drug 5-fluorouracil | |
He et al. | Optimization of upconversion luminescence of Nd 3+-sensitized BaGdF 5-based nanostructures and their application in dual-modality imaging and drug delivery | |
Zhai et al. | Rattle-type hollow CaWO 4: Tb 3+@ SiO 2 nanocapsules as carriers for drug delivery | |
EP2121040A1 (en) | Compositions containing metal oxide particles and their uses | |
Cheng et al. | YVO 4: Eu 3+ functionalized porous silica submicrospheres as delivery carriers of doxorubicin | |
Markova et al. | Synthesis and properties of core–shell fluorescent hybrids with distinct morphologies based on carbon dots | |
CN104436199A (zh) | 一种高效负载表阿霉素的多孔四氧化三铁复合纳米微球的制备方法 | |
Kumari et al. | Synthesis, characterization and electrochemical monitoring of drug release properties of dual stimuli responsive mesoporous GdPO4: Eu3+ nanoparticles | |
CN112390786B (zh) | 一种具有aie特性的荧光和磁共振造影信号同时增强的两亲性分子、纳米颗粒及制备方法与应用 | |
Zhou et al. | Aptamer‐Directed Synthesis of Multifunctional Lanthanide‐Doped Porous Nanoprobes for Targeted Imaging and Drug Delivery | |
Wang et al. | Mn 12 single-molecule magnet aggregates as magnetic resonance imaging contrast agents | |
CN114272396B (zh) | T1-t2双猝灭-激活的mri造影剂及其制备方法 | |
Liang et al. | Core–shell structured NaYF 4: Yb, Er nanoparticles with excellent upconversion luminescent for targeted drug delivery | |
US10154628B2 (en) | Coating metal oxide particles | |
CN107970224B (zh) | 一种脂质修饰磁性氧化石墨烯复合材料的制备方法及应用 | |
CN109867309B (zh) | 一种水溶磁性氧化铁纳米晶及其制备方法 | |
CN102397562B (zh) | 一种由普鲁士蓝负载Gd3+的造影剂的制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |