CN104667301B - 一种单分散核壳结构AuNCs‑A@CaP纳米粒子的制备方法及其应用 - Google Patents
一种单分散核壳结构AuNCs‑A@CaP纳米粒子的制备方法及其应用 Download PDFInfo
- Publication number
- CN104667301B CN104667301B CN201510074268.4A CN201510074268A CN104667301B CN 104667301 B CN104667301 B CN 104667301B CN 201510074268 A CN201510074268 A CN 201510074268A CN 104667301 B CN104667301 B CN 104667301B
- Authority
- CN
- China
- Prior art keywords
- solution
- auncs
- shell structure
- cap
- particles
- 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.)
- Expired - Fee Related
Links
- 239000002105 nanoparticle Substances 0.000 title claims abstract description 44
- 239000011258 core-shell material Substances 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- 101150113720 aunc gene Proteins 0.000 title abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 8
- 229920002125 Sokalan® Polymers 0.000 claims abstract description 7
- 239000004584 polyacrylic acid Substances 0.000 claims abstract description 7
- 239000000243 solution Substances 0.000 claims description 41
- 238000006243 chemical reaction Methods 0.000 claims description 16
- RWSXRVCMGQZWBV-WDSKDSINSA-N glutathione Chemical compound OC(=O)[C@@H](N)CCC(=O)N[C@@H](CS)C(=O)NCC(O)=O RWSXRVCMGQZWBV-WDSKDSINSA-N 0.000 claims description 14
- 239000003814 drug Substances 0.000 claims description 13
- 238000003756 stirring Methods 0.000 claims description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical class CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 9
- 229960003180 glutathione Drugs 0.000 claims description 7
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical class [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 5
- 238000003760 magnetic stirring Methods 0.000 claims description 5
- 239000011259 mixed solution Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 108010024636 Glutathione Proteins 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims 2
- 239000003643 water by type Substances 0.000 claims 2
- 235000011116 calcium hydroxide Nutrition 0.000 claims 1
- 238000010304 firing Methods 0.000 claims 1
- 239000012216 imaging agent Substances 0.000 claims 1
- 239000006185 dispersion Substances 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 6
- 238000012377 drug delivery Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 239000002114 nanocomposite Substances 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000003384 imaging method Methods 0.000 abstract 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 45
- 239000001506 calcium phosphate Substances 0.000 description 18
- 235000011010 calcium phosphates Nutrition 0.000 description 18
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 18
- 239000008367 deionised water Substances 0.000 description 12
- 229910021641 deionized water Inorganic materials 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 229940079593 drug Drugs 0.000 description 10
- 241000699670 Mus sp. Species 0.000 description 6
- 210000004027 cell Anatomy 0.000 description 5
- 238000013170 computed tomography imaging Methods 0.000 description 5
- 238000000799 fluorescence microscopy Methods 0.000 description 5
- 238000001727 in vivo Methods 0.000 description 5
- 239000002086 nanomaterial Substances 0.000 description 5
- 239000000920 calcium hydroxide Substances 0.000 description 4
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 4
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 4
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000000427 antigen Substances 0.000 description 3
- 102000036639 antigens Human genes 0.000 description 3
- 108091007433 antigens Proteins 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000001308 synthesis method Methods 0.000 description 3
- 206010028980 Neoplasm Diseases 0.000 description 2
- QGMRQYFBGABWDR-UHFFFAOYSA-M Pentobarbital sodium Chemical compound [Na+].CCCC(C)C1(CC)C(=O)NC(=O)[N-]C1=O QGMRQYFBGABWDR-UHFFFAOYSA-M 0.000 description 2
- 230000003444 anaesthetic effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000002077 nanosphere Substances 0.000 description 2
- 229960002275 pentobarbital sodium Drugs 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 210000001744 T-lymphocyte Anatomy 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000012382 advanced drug delivery Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 210000000612 antigen-presenting cell Anatomy 0.000 description 1
- 239000002246 antineoplastic agent Substances 0.000 description 1
- 229940041181 antineoplastic drug Drugs 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013267 controlled drug release Methods 0.000 description 1
- 238000013270 controlled release Methods 0.000 description 1
- 231100000433 cytotoxic Toxicity 0.000 description 1
- 230000001472 cytotoxic effect Effects 0.000 description 1
- 231100000135 cytotoxicity Toxicity 0.000 description 1
- 230000003013 cytotoxicity Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 230000006806 disease prevention Effects 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 239000003937 drug carrier Substances 0.000 description 1
- 238000013399 early diagnosis Methods 0.000 description 1
- 230000002121 endocytic effect Effects 0.000 description 1
- 238000012632 fluorescent imaging Methods 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000028996 humoral immune response Effects 0.000 description 1
- 210000002865 immune cell Anatomy 0.000 description 1
- 230000028993 immune response Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000338 in vitro Methods 0.000 description 1
- 230000028709 inflammatory response Effects 0.000 description 1
- 201000007270 liver cancer Diseases 0.000 description 1
- 208000014018 liver neoplasm Diseases 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 210000003712 lysosome Anatomy 0.000 description 1
- 230000001868 lysosomic effect Effects 0.000 description 1
- 239000002547 new drug Substances 0.000 description 1
- 238000000696 nitrogen adsorption--desorption isotherm Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000013268 sustained release Methods 0.000 description 1
- 239000012730 sustained-release form Substances 0.000 description 1
- 231100000057 systemic toxicity Toxicity 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Medicinal Preparation (AREA)
- Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
Abstract
本发明属于纳米复合材料及其应用技术领域,具体涉及一种单分散核壳结构AuNCs‑A@CaP纳米粒子的制备方法及其应用。本发明借助聚丙烯酸的导向与稳定作用,开发一种简单的方法制备单分散核壳结构AuNCs‑A@CaP纳米粒子,所得产品分散性好,粒径均匀,生物相容性好,且具有孔道结构,在药物输送和生物成像等领域具有非常广阔的应用前景。
Description
技术领域
本发明属于纳米复合材料及其应用技术领域,具体涉及一种单分散核壳结构AuNCs-A@CaP纳米粒子的制备方法及其应用。
背景技术
随着纳米科学与纳米技术的发展,在二十一世纪的今天,“纳米医学”已经不是一个新名词。纳米科学技术与生物学、医学在生物传感、医学示踪、疾病的早期诊断、癌症的治疗等多个应用领域的结合,使“纳米医学”逐渐发展成为一个多学科交叉的新的研究方向,开创了医学工程的新纪元。面对着对疾病预防、诊断和治疗的实际需求及由于传统药物非特异性的分布对人体正常组织和器官造成损伤这一亟待解决的难题,纳米技术的发展为获得更加先进的药物输送系统和实现早期检测与诊断带来了新的希望,开辟了新的途径。由于纳米控释系统特有的性质,使其在药物输送方面具有许多优越性;可缓释药物,从而延长药物的作用时间;可达到靶向输送的目的:可在保证药物作用的前提下,减少给药剂量,从而减轻或避免毒副反应;可提高药物的稳定性,有利于储存;也可能建立一些新的给药途径,包括体内局部给药、粘膜吸收给药,多肽类药物的口服给药等等。所以,纳米缓释系统是一种非常有前途的药物新剂型,对其研究也越来越广泛。
随着纳米技术及纳米材料的不断发展和完善,纳米粒子因其独特的结构和理化性质使其在癌症的治疗上取得了明显进展。但纳米粒子作为异物进入机体,会引起一系列机体反应,影响固有免疫细胞的活性,促进免疫分子的分泌,而且纳米粒子对抗原递呈细胞具有活化作用,可促进其对抗原的递呈,还可诱导激活抗原特异性CD8+T细胞免疫应答,从而介导抗原特异性细胞毒效应。此外,纳米粒子可增强体液免疫应答,并导致严重的炎症反应。而选用高生物相容性(Biocampatibility,BC)纳米粒子为药物载体则会在最大程度上避免这些问题的产生。其中金纳米簇(AuNCs)具有良好的生物相容性,稳定的化学和光学性质,因此近些年被作为很有潜力的生物探针。与此同时,磷酸钙壳作为载体材料更是近年来的研究热点。磷酸钙是人体中骨骼与牙齿等的主要成份,并且在血液中存在一定量的钙离子与磷酸根离子,因此磷酸钙纳米粒子具体极好的生物相容性,可作为药物等的理想载体材料。磷酸钙纳米粒子是一种pH 敏感性纳米粒子,在体内血液循环环境中(pH 为7.4),磷酸钙能保持很好的稳定性,保护药物不释放出来。而在细胞的内吞溶酶体的后期,pH 降到4-5,在这一酸性环境中,磷酸钙溶解,从而释放出抗癌药物。
近些年, 磷酸钙纳米材料的合成及其在生物医学中的应用已经成为国内外研究的热点和前沿方向[参考文献:X. Li, X. P. Wang, Y. Sogo, T. Ohno, K. Onuma, A.Ito, Adv. Healthcare Mater. 2013, 2, 863; H. J. Lee, S. E. Kim, K. Kwon, C.Park, C. Kim, J. Yang, S. C. Lee, Chem. Commun. 2010, 46, 377; M. Kester, Y.Heakal, T. Fox, A. Sharma, G. P. Robertson, T. T. Morgan,E. I. Altinoglu,A.Tabakovic,M. R. Parette, S. M. Rouse, V. R. Velasco, J. H. Adair, NANO LETTERS 2008, 8, 4116.]。日本国家材料科学研究所(NIMS)Yusuke Yamauchi课题组以PS-PAA-PEG为模板,合成了空心结构磷酸钙(CaP)纳米球,并详细考察了空心CaP纳米球的细胞毒性,结果表明所制备的CaP纳米材料具有良的生物相容性,为其在生物医学领域的应用研究提供了重要的生物安全性参考资料[参考文献:B. P. Bastakoti, M. Inuoe, S.Yusa, S. H. Liao, K. Wu, K. Nakashima, Y. Yamauchi, Chem. Commun. 2012, 48,6532.]。在此基础上,该研究组又开发了新型CaP-PS-PAA-PEG复合材料,作为药物传递载体在治疗肝癌上表现出一定的优越性,降低了系统毒性,且具有pH值可控药物释放性能[参考文献:B. P. Bastakoti, K. Wu, M. Inoue, S. Yusa, K. Nakashima, Y. Yamauchi,Chem. Eur. J. 2013, 19, 4812.]。从以上叙述中可以看出,由于磷酸钙纳米材料的特殊性能,使其在纳米医药领域表现出很高的应用价值,目前有关磷酸钙纳米粒子合成的报道也很多,如空心[参考文献:D. Hagmeyer, K. Ganesan, J. Ruesing, D. Schunk, C.Mayer, A. Dey, N. Sommerdijk, M. Epple, J. Mater. Chem. 2011, 21, 9219.]、棒状[J. Klesing, S. Chernousova, M. Epple, J. Mater. Chem. 2012, 22, 199.]等简单结构纳米粒子,对基于磷酸钙的多功能复杂纳米结构构筑的研究较少,特别是对于以磷酸钙为主体材料的单分散核壳结构AuNCs-A@CaP纳米粒子的构筑还未有报道。现有合成方法所制备的磷酸钙纳米粒子普遍存在分散性差、粒径不均一、尺寸难调控、合成方法复杂、整体形貌较差等缺陷。因此,开发具一种简单易行,制备单分散、粒径可控的多功能核壳结构AuNCs-A@CaP纳米粒子是一个具有挑战性的新课题。
发明内容
本发明提供一种单分散核壳结构AuNCs-A@CaP纳米粒子的制备方法及其应用。使用该方法制备的核壳结构AuNCs-A@CaP纳米粒子具有分散性好、粒径均匀、生物相容性好等特点,可用于药物输送及多模式生物成像等领域。
本发明单分散核壳结构AuNCs-A@CaP纳米粒子的制备方法包括如下步骤:
(1)取4 ~ 6 mL HAuCl4 (20 mM) 溶液加入到30 ~ 50 mL去离子水中,随后再向其中加入50 ~ 60 mg GSH(谷胱甘肽),在25 ~ 30 oC条件下搅拌5 ~ 10 min使其混合均匀。
(2)将步骤(1)得到的溶液置于70 ~ 75 oC油浴中避光反应20 ~ 24 h,反应完成后将加热设备关掉,到溶液冷却至室温,待用。
(3)在100 mL圆底烧瓶中依次加入10 ~ 15 mg氢氧化钙,40 ~ 50 mg聚丙烯酸(Mw= 1800),和20 ~ 25 mL去离子水,磁力搅拌10 ~ 20 min至溶液澄清透明为止。
(4)将步骤(2)得到的溶液4 ~ 6 mL加入步骤(3)得到的溶液中,磁力搅拌5 ~ 10min使其混合均匀。
(5)在磁力搅拌下将40 ~ 60 mL异丙醇缓慢滴加入步骤(4)得到的溶液中,滴加完毕后再向溶液中加入12 ~ 18 mg磷酸氢二氨,在25 ~ 30 oC条件下搅拌反应4 ~ 5 h。
(6)将步骤(5)得到的混合溶液进行离心分离(8000 ~ 9000 rpm,5 ~ 8 min),所得固体再用去离子水洗涤数次,即得AuNCs-A@CaP纳米粒子。
本发明具有如下优点:
1.本发明合成方法简单,采用一步法合成高分散、粒径均一的核壳结构AuNCs-A@CaP纳米粒子。在此反应过程中,借助聚丙烯酸的导向与稳定作用,使得金簇的聚集与磷酸钙壳的生长同步进行,既缩短了反应步骤又保证了粒子的高分散性。
2.本发明得到的单分散核壳结构AuNCs-A@CaP纳米粒子粒径均匀、分散性好,具有良好的生物相容性,可用于药物输送及多模式生物成像。
3.由于磷酸钙壳的包覆,相比于单独AuNCs,单分散核壳结构AuNCs-A@CaP纳米粒子荧光强度大大增加,同时可以很容易的进行离心分离和洗涤。
附图说明
图1、为本发明制备得到的单分散核壳结构AuNCs-A@CaP纳米粒子透射电镜图片,插图为单个核壳结构AuNCs-A@CaP纳米粒子透射电镜图片;
图2、为本发明制备得到的单分散核壳结构AuNCs-A@CaP纳米粒子的扫描电镜图片;
图3 单分散核壳结构AuNCs-A@CaP纳米粒子氮气吸附-脱附等温曲线,插图为该纳米粒子孔径分布曲线。
图4、单分散核壳结构AuNCs-A@CaP纳米粒子对H-22细胞的荧光成像图片;
图5、单分散核壳结构AuNCs-A@CaP纳米粒子对Balb/c鼠的体内荧光成像图片;
图6、单分散核壳结构AuNCs-A@CaP纳米粒子在溶液中CT成像图片;
图7、单分散核壳结构AuNCs-A@CaP纳米粒子对Balb/c鼠的体内CT成像图片;
具体实施方式
下面结合具体实施例进一步阐述本发明,实施例仅用于说明本发明而不用于限制本发明的保护范围。
具体实施例
实施例1:
取4 mL HAuCl4 (20 mM) 溶液加入到30 mL去离子水中,随后再向其中加入50 mgGSH,在25 oC条件下搅拌5 min使其混合均匀。将溶液置于70 oC油浴中避光反应24 h,反应完成后将加热设备关掉,到溶液冷却至室温,待用。随后,在100 mL圆底烧瓶中依次加入10mg氢氧化钙、40 mg聚丙烯酸和20 mL去离子水,磁力搅拌5 min,再向溶液中加入4 mL上述待用溶液,继续搅拌5 min,使其混合均匀。随后在磁力搅拌下将20 mL异丙醇缓慢滴加入上述反应液中,滴加完毕后,再向溶液中加入12 mg磷酸氢二氨,在25 oC条件下搅拌反应4 h。最后,将得到的混合溶液进行离心分离(9000 rpm,8 min),所得固体再用去离子水洗涤数次,即得AuNCs-A@CaP纳米粒子。
实施例2:
取6 mL HAuCl4 (20 mM) 溶液加入到50 mL去离子水中,随后再向其中加入60 mgGSH在30 oC条件下搅拌10 min使其混合均匀。将步骤(1)得到的溶液置于75 oC油浴中避光反应20 h,反应完成后将加热设备关掉,到溶液冷却至室温,待用。在100 mL圆底烧瓶中依次加入15 mg氢氧化钙、50 mg聚丙烯酸、25 mL去离子水,磁力搅拌10 min,再向溶液中加入6 mL上述待用溶液,继续搅拌10 min,使其混合均匀。随后在磁力搅拌下将25 mL异丙醇缓慢滴加入反应液中,滴加完毕后,再向溶液中加入18 mg磷酸氢二氨,在30 oC条件下搅拌反应5 h。最后,将得到的混合溶液进行离心分离(8000 rpm,5 min),所得固体再用去离子水洗涤数次,即得AuNCs-A@CaP纳米粒子。
实施例3:
取5 mL HAuCl4 (20 mM) 溶液加入到45 mL去离子水中,随后再向其中加入55 mgGSH在28 oC条件下搅拌8 min使其混合均匀。将步骤(1)得到的溶液置于73 oC油浴中避光反应22 h,反应完成后将加热设备关掉,到溶液冷却至室温,待用。在100 mL圆底烧瓶中依次加入12 mg氢氧化钙、45 mg聚丙烯酸、23 mL去离子水,磁力搅拌8 min,再向溶液中加入5mL 上述待用溶液,继续搅拌13 min,使其混合均匀。随后在磁力搅拌下将23 mL异丙醇缓慢滴加入反应液中,滴加完毕后,再向溶液中加入16 mg磷酸氢二氨,在28 oC条件下搅拌反应4.5 h。最后,将得到的混合溶液进行离心分离(8000 rpm,8 min),所得固体再用去离子水洗涤数次,即得AuNCs-A@CaP纳米粒子。
上述制备出的单分散核壳结构AuNCs-A@CaP纳米复合材料可用于载药及多模式生物成像(光成像和CT成像)。
实施例4:
AuNCs-A@CaP纳米粒子细胞荧光成像的步骤为:将400 μL AuNCs-A@CaP纳米粒子(25 μg mL-1)与H-22细胞共同培养24小时,然后在共聚焦显微镜下获得H-22细胞荧光成像图片。实施例5:
体内荧光成像步骤为:按照每千克给麻药10 mL(戊巴比妥钠0.7%)的量麻醉小鼠。然后,将用PBS配制的AuNCs-A@CaP纳米粒子溶液通过尾静脉注射入小鼠体内。最后,进行荧光成像。
实施例6:
体外CT成像步骤为:用PBS配制不同浓度AuNCs-A@CaP纳米粒子溶液,然后用西门子六十四排容积CT机获得CT图像。(参数如下:电压120 kV, 电流280 mA, 狭层厚度1.0mm)
实施例7:
体内CT成像步骤为:首先,按照每千克给麻药10 mL(戊巴比妥钠0.7%)的量麻醉小鼠。然后,将用PBS配制的AuNCs-A@CaP纳米粒子溶液通过尾静脉注射入小鼠体内。最后,进行CT成像。
Claims (2)
1.一种单分散核壳结构AuNCs-A@CaP 纳米粒子的制备方法,其特征包括如下步骤:
(1)取4 ~ 6 mL 20 mM HAuCl4溶液加入到30 ~ 50 mL 去离子水中,再向其中加入50~60 mg 谷胱甘肽GSH,在25 ~ 30℃条件下搅拌5 ~ 10 min 使其混合均匀;
(2)将步骤(1) 得到的溶液置于70 ~ 75 ℃油浴中避光反应20 ~ 24 h,反应完成后将加热设备关掉,到溶液冷却至室温,待用;
(3)在烧瓶中依次加入10 ~ 15 mg 氢氧化钙,40 ~ 50 mg 聚丙烯酸Mw = 1800,和20~25 mL 去离子水,磁力搅拌10 ~ 20 min 至溶液澄清透明;
(4)将步骤(2) 得到的溶液4 ~ 6 mL 加入步骤(3)得到的溶液中,磁力搅拌5 ~ 10min混合均匀;
(5)在磁力搅拌下将40 ~ 60 mL 异丙醇缓慢滴加入步骤(4)得到的溶液中,滴加完毕后再向溶液中加入12 ~ 18 mg 磷酸氢二氨,在25 ~ 30 ℃条件下搅拌反应4 ~ 5 h ;
(6)将步骤(5)得到的混合溶液进行离心分离8000 ~ 9000 rpm,5 ~ 8 min,所得固体再用去离子水洗涤数次,即得AuNCs-A@CaP 纳米粒子。
2.权利要求1 所述方法制备的单分散核壳结构AuNCs-A@CaP 纳米粒子在制备药物输送载体及多模式生物成像剂的应用。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074268.4A CN104667301B (zh) | 2015-02-12 | 2015-02-12 | 一种单分散核壳结构AuNCs‑A@CaP纳米粒子的制备方法及其应用 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510074268.4A CN104667301B (zh) | 2015-02-12 | 2015-02-12 | 一种单分散核壳结构AuNCs‑A@CaP纳米粒子的制备方法及其应用 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104667301A CN104667301A (zh) | 2015-06-03 |
| CN104667301B true CN104667301B (zh) | 2017-08-22 |
Family
ID=53303232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510074268.4A Expired - Fee Related CN104667301B (zh) | 2015-02-12 | 2015-02-12 | 一种单分散核壳结构AuNCs‑A@CaP纳米粒子的制备方法及其应用 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104667301B (zh) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106215196B (zh) * | 2016-08-05 | 2019-05-14 | 东北师范大学 | 碳/磷酸钙/四氧化三铁复合结构纳米粒子的制备方法 |
| CN107309437B (zh) * | 2017-07-07 | 2019-10-22 | 东北师范大学 | 一种金纳米星/磷酸钙纳米粒子及其制备方法 |
| CN107638572A (zh) * | 2017-08-16 | 2018-01-30 | 西安电子科技大学 | 一种pH响应型超灵敏纳米荧光探针及制备方法 |
| CN111592879A (zh) * | 2020-05-29 | 2020-08-28 | 重庆大学 | 稳定型荧光颗粒及其制备方法 |
| CN116270495A (zh) * | 2023-04-12 | 2023-06-23 | 滨州医学院 | 一种可降解负载双药的纳米粒子及其制备方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090298115A1 (en) * | 2008-05-29 | 2009-12-03 | Chung Yuan Christian University | Fluorescent Gold Nanocluster and Method for Forming the Same |
| CN102083741A (zh) * | 2008-07-03 | 2011-06-01 | 浦项工科大学校产学协力团 | pH敏感性金属纳米粒子及其制造方法 |
-
2015
- 2015-02-12 CN CN201510074268.4A patent/CN104667301B/zh not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090298115A1 (en) * | 2008-05-29 | 2009-12-03 | Chung Yuan Christian University | Fluorescent Gold Nanocluster and Method for Forming the Same |
| CN102083741A (zh) * | 2008-07-03 | 2011-06-01 | 浦项工科大学校产学协力团 | pH敏感性金属纳米粒子及其制造方法 |
Non-Patent Citations (2)
| Title |
|---|
| "Multifunctional Core-Shell-Corona-Type Polymeric Micelles for Anticancer Drug-Delivery and Imaging";Bishnu Prasad Bastakoti at al;《Chem. Eur. J》;20130218;第19卷;第4812页右栏第35行至第4813页左栏第20行,第4816页右栏"experimental section"部分 * |
| 宋莎莎等."超小金纳米团簇作为CT对比剂的研究".《辐射研究与辐射工艺学报》.2014,第22卷(第5期), * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104667301A (zh) | 2015-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Red-blood-cell-membrane-enveloped magnetic nanoclusters as a biomimetic theranostic nanoplatform for bimodal imaging-guided cancer photothermal therapy | |
| Li et al. | Actively targeted deep tissue imaging and photothermal‐chemo therapy of breast cancer by antibody‐functionalized drug‐loaded X‐ray‐responsive bismuth sulfide@ mesoporous silica core–shell nanoparticles | |
| Song et al. | Temperature‐dependent CAT‐Like RGD‐BPNS@ SMFN nanoplatform for PTT‐PDT self‐synergetic tumor phototherapy | |
| Zhu et al. | Erythrocyte membrane-coated gold nanocages for targeted photothermal and chemical cancer therapy | |
| CN104667301B (zh) | 一种单分散核壳结构AuNCs‑A@CaP纳米粒子的制备方法及其应用 | |
| Wang et al. | Mitoxantrone-preloaded water-responsive phospholipid-amorphous calcium carbonate hybrid nanoparticles for targeted and effective cancer therapy | |
| Tian et al. | Poly (acrylic acid) bridged gadolinium metal–organic framework–gold nanoparticle composites as contrast agents for computed tomography and magnetic resonance bimodal imaging | |
| Duan et al. | Highly loaded hemoglobin spheres as promising artificial oxygen carriers | |
| Yao et al. | Construction of magnetic-carbon-quantum-dots-probe-labeled apoferritin nanocages for bioimaging and targeted therapy | |
| Wang et al. | Size-controlled preparation and behavior study of phospholipid–calcium carbonate hybrid nanoparticles | |
| Lee et al. | Red blood cell membrane bioengineered Zr-89 labelled hollow mesoporous silica nanosphere for overcoming phagocytosis | |
| Xu et al. | Albumin-stabilized manganese-based nanocomposites with sensitive tumor microenvironment responsivity and their application for efficient SiRNA delivery in brain tumors | |
| He et al. | Plasmonic CuS nanodisk assembly based composite nanocapsules for NIR-laser-driven synergistic chemo-photothermal cancer therapy | |
| Zhang et al. | Delivery of a chemotherapeutic drug using novel hollow carbon spheres for esophageal cancer treatment | |
| CN108853055B (zh) | 一种多功能核壳结构Fe3O4@TiO2@ZIF-8纳米粒子载药体系及其制备方法 | |
| CN114259477B (zh) | 一种促渗透、缓解肿瘤缺氧并能靶向肿瘤细胞的纳米递送体系及其制备方法和应用 | |
| Zhang et al. | Highly stable and long‐circulating metal‐organic frameworks nanoprobes for sensitive tumor detection in vivo | |
| Chen et al. | General synthesis of silica-based yolk/shell hybrid nanomaterials and in vivo tumor vasculature targeting | |
| Cheng et al. | Facile preparation of multifunctional WS2/WOx nanodots for chelator‐free 89Zr‐labeling and in vivo PET imaging | |
| CN113134012B (zh) | 一种CaO2/Fe3O4@OA纳米复合物及其制备方法与应用 | |
| Li et al. | Albumin-stabilized polydopamine nanoparticles for chemo-photothermal synergistic therapy of melanoma | |
| Cui et al. | Biomimetic light-activatable graphene-based nanoarchitecture for synergistic chemophotothermal therapy | |
| Wang et al. | “Cluster Bomb” Based Bismuth Nano‐in‐Micro Spheres Formed Dry Powder Inhalation for Thermo‐Radio Sensitization Effects of Lung Metastatic Breast Cancer | |
| Kudaibergen et al. | Silica-based advanced nanoparticles for treating ischemic disease | |
| Kariminia et al. | A novel magnetically guided, oxygen propelled CoPt/Au nanosheet motor in conjugation with a multilayer hollow microcapsule for effective drug delivery and light triggered drug release |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170822 Termination date: 20180212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |