CN102616735A - 单一配方生物相容性磁性纳米晶体尺寸控制制备技术 - Google Patents
单一配方生物相容性磁性纳米晶体尺寸控制制备技术 Download PDFInfo
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Abstract
本发明涉及不同尺寸的生物相容性磁性纳米晶体的可控制备方法。在金属前躯体、多功能基团修饰的生物相容性高分子和带烷基链的小分子的共同存在的条件下,在高沸点非极性或高沸点弱极性溶剂中形成凝胶,在不改变反应原料和配比的前提下,利用反应体系在预热条件下可以形成凝胶的特点,通过对反应体系凝胶化程度的控制,在单一配方下高温分解凝胶制备不同尺寸的生物相容性磁性纳米晶体。本发明所采用的技术方法具有操作简便、重复性高的特点。采用该技术方法制备的生物相容性磁性纳米晶体尺寸调控范围为4~25纳米,纳米晶体的粒度分布窄,可以实现规模化和商品化生产。
Description
技术领域
本发明涉及生物相容性磁性纳米晶体尺寸控制的制备方法。更具体地说,利用金属离子与含有多功能基团的高分子化学物的相互作用,将金属前驱体与多功能基团的高分子形成凝胶,利用此凝胶作为金属有机前驱体,在不改变体系配方的基础上制备出具有不同化学尺寸的表面生物相容性修饰的磁性纳米晶体。
背景技术
磁性纳米晶体在生物医学方面如核磁共振成像、疾病诊断与疗效检测、磁热治疗以及细胞分离与免疫分析等方面有着非常广阔的应用价值。由于量子尺寸效应与限域效应,纳米材料展示出强烈的尺寸依赖的物理化学性质。在过去的20年中,利用不同的制备技术可对不同形貌的无机纳米晶体的尺寸进行有效调控,然而发展新型的无机纳米晶体的可控合成方法,仍然是基于液相胶体化学方法制备无机纳米晶体相关领域的研究热点。尤其是具有广阔生物医学应用前景的磁性无机纳米晶体,由于其具有尺寸依赖的磁学性质,因此其磁共振成像信号增强的能力展示出强烈的尺寸依赖性,同时由于不同尺寸的纳米晶体具有不同的水合尺寸,表现出不同的有效克服生物防御体系以及血管障碍的能力,并由此展示出不同的体内分布行为以及对不同部位组织的成像特点。因此发展高质量生物相容性磁性纳米晶体的尺寸可控制备方法有着极其重要的意义。
高质量磁性纳米晶体的尺寸控制制备方法主要有两种:一种是先合成表面油酸/油胺修饰的磁性纳米晶体作为核,进而以此为种子生长较大尺寸的磁性纳米晶体。这种方法过程繁琐,所制备的大尺寸纳米晶体的性质受种子性质的影响大(J.Am.Chem.Soc.2002,124,8204.)。第二种方法是通过改变反应体系的配方如反应温度、前驱体的化学性质及浓度、表面稳定剂的化学性质及其与前驱体的比例等来调控磁性纳米晶体的尺寸(Chem.Mater.2004,16,3931.:J.Am.Chem.Soc.2006,128,1675.;Chem.Commun.2004,2306.)这两种方法都需要改变化学反应体系的原料和配比,而到目前为止,尚未有在单一配方下实现磁性纳米晶体尺寸控制合成的技术报道,同时上述两种方法所制备的磁性纳米晶体只能溶解或者分散在非极性或弱极性的有机介质中,不利于实际应用。
最近,中国科学院化学研究所高明远课题组建立了水溶性以及生物相容性磁性纳米晶体的“一锅”反应制备技术(CN03136275.3、CN03136273.7、CN200610114459.X、CN200710187275.0)。利用该技术方法通过“一锅”反应直接制备得到了水溶性、生物相容性(Adv.Mater.2005,17,1001.)及表面带有可反应基团的生物相容性磁性纳米晶体(Adv.Mater.2006,18,2553.)。在专利CN200710187275.0的基础上,利用金属前驱体与含有2个及2个以上功能基团的生物相容性高分子作用形成凝胶,我们发明了不同尺寸高结晶度、分散度高的生物相容性磁性纳米晶体的单一配方制备技术。
发明内容
本发明的目的之一是提供具有不同尺寸的生物相容性磁性纳米晶体,其粒径分布不超过15%。
本发明的目的之二是提供的生物相容性磁性纳米晶体的粒径范围为4~25纳米。
本发明的目的之三是提供的生物相容性磁性纳米晶体,其尺寸是利用金属离子与含有多功能基团的生物相容性高分子的相互作用形成凝胶,通过控制体系的凝胶化程度进行调控。
本发明的目的之四是提供一种在单一配方下合成不同尺寸的生物相容性磁性纳米晶体的制备方法。
本发明的上述目的通过以下技术方案实现,即,
一种单一配方生物相容性磁性纳米晶体尺寸控制制备方法,其特征是:通过一种反应配方制备不同尺寸的生物相容性磁性纳米晶体:
将金属前驱体、生物相容性高分子和带烷基链的小分子溶于高沸点非极性溶剂或高沸点弱极性溶剂中形成母液,通入惰性气体排除反应体系中的氧气,在不同温度条件下对母液进行不同时间的恒温孵育,形成不同粘度的凝胶,然后经高温热分解反应得到不同尺寸的生物相容性磁性纳米晶体,
其中,
所述的生物相容性高分子是2个以上功能基团修饰的高分子,
所述的孵育温度范围是15摄氏度~200摄氏度,
所述的孵育时间范围是0~5天,
所述的凝胶的粘度范围在0.01~200帕秒。
本发明是通过“一锅”反应,在高沸点的非极性或者高沸点的弱极性溶剂中高温分解金属有机化合物或者金属无机化学物,在含有2个以上功能基团的生物相容性高分子和带有烷基链的小分子胺或小分子酸共同存在的条件下,将前驱体溶液在不同温度下孵育不同时间,制备出不同尺寸的高结晶度以及生物相容性磁性纳米晶体。
本发明的不同尺寸的高结晶度以及生物相容性磁性纳米晶体,粒径范围是4~25纳米,在磁性纳米晶体表面修饰有2个以上功能基团生物相容性高分子;或在磁性纳米晶体表面修饰有2个以上功能基团生物相容性高分子和带烷基链的小分子。
所述的2个以上功能基团生物相容性高分子是指巯基、羧基、氨基以及磷酸基团等为端基的聚乙二醇衍生物,以及含有多个巯基、羧基、氨基以及磷酸基团的生物分子。
所述的磁性纳米晶体主要是磁性过渡金属氧化物、镧系稀土金属氧化物、过渡金属氧化物以及过渡金属掺杂型磁性氧化物,优选铁、钴、镍、锰的氧化物以及铁氧体,以及稀土钆、镝、钬、铒、铥的氧化物。
本发明的生物相容性磁性纳米晶体及单一配方下尺寸控制合成技术是采用“一锅”法,反应过程包括以下步骤:
(1)在反应容器中将金属有机化学物或者无机金属化合物(如乙酰丙酮铁等)、生物相容性高分子(如分子量为2000端基为羧基的聚乙二醇等)和烷基小分子胺溶于高沸点非极性或者高沸点弱极性溶剂(如二苯醚,二苄醚等)中,并通惰性气体排出反应体系中的氧气,形成反应母液。
(2)将反应母液分别在不同的温度范围进行孵育,得到一定凝胶程度的母液,并将得到的不同凝胶程度的母液加热,制备得到生物相容性的磁性纳米晶体;孵育温度为15度至200度;孵育时间为0~5天;反应温度高于160度;反应时间为30分钟至4小时。
(3)将步骤(2)中的反应液冷却至室温,加入体积为反应液5倍的有机溶剂(乙醇、二氯甲烷、三氯甲烷、***、石油醚、环己烷、正己烷或者它们的混合物等)沉淀出生物相容性的磁性纳米晶体,并用相同的有机溶剂洗涤三次后,磁铁分离或离心分离得到生物相容性磁性纳米晶体。
(4)将步骤(3)得到的生物相容性磁性纳米晶体溶于去离子水中,透析2天进行纯化,得到可直接进行生物应用的磁性纳米晶体的水溶液。
所述的金属有机化合物是含有过渡金属或者稀土金属的有机络合物,如三乙酰丙酮铁、二乙酰丙酮铁、五羰基铁、苯基乙酰丙酮铁、油酸铁、硬脂酸铁、二乙酰丙酮锰、苯基乙酰丙酮锰、油酸锰、硬脂酸锰、二乙酰丙酮镍、四羰基镍、油酸镍、硬脂酸镍、二乙酰丙酮钴、八羰基二钴、油酸钴、硬脂酸钴、三乙酰丙酮钆、油酸钆、硬脂酸钆、三乙酰丙酮镝、油酸镝、硬脂酸镝、三乙酰丙酮钬、三乙酰丙酮铒、油酸铒、硬脂酸铒、三乙酰丙酮铥、三乙酰丙酮铥、油酸铥、硬脂酸铥。
所述的金属无机化合物是含有过渡金属和稀土金属的无机物以及水合无机盐,包括上述金属的醋酸盐、柠檬酸盐、草酸盐、氯化盐、硝酸盐、硫酸盐及其水合物,如:醋酸铁、柠檬酸铁、草酸铁、三氯化铁、二氯化亚铁、四水合三氯化铁、六水合三氯化铁、硝酸铁、硫酸铁、醋酸钴、柠檬酸钴、草酸钴、三氯化钴、醋酸锰、草酸锰、氯化亚锰、硝酸锰、硫酸锰、醋酸钆、氯化钆、三水合氯化钆、六水合氯化钆、硝酸钆、醋酸镝、氯化镝、三水合氯化镝、六水合氯化镝、硝酸镝、醋酸钬、氯化钬、三水合氯化钬、六水合氯化钬、硝酸钬、醋酸铒、氯化铒、三水合氯化铒、六水合氯化铒、硝酸铒、醋酸铥、氯化铥、三水合氯化铥、六水合氯化铥、硝酸铥。
所述的生物相容性高分子的分子量在600~20000,优选600~6000;主要线型、支化的聚乙二醇,也包括线型、支化的聚乙二醇与聚丙烯酸、聚甲基丙烯酸、聚丙烯酸、聚赖氨酸、聚亮氨酸、聚谷氨酸、聚天冬氨酸或聚乳酸形成的嵌段共聚物中的一种。上述生物相容性高分子最重要的结构特征是在高分子的链段或者两端含有2个以上的功能基团羧基、胺基、巯基、磷酸基。
本发明制备不同尺寸生物相容性磁性纳米晶体所采用的技术方法具有工艺简单、操作简便的特点,即通过“一锅”反应,不改变反应体系的原料和比例,在单一配方下实现不同尺寸生物相容性磁性纳米晶体的可控制备。所得到的磁性纳米晶体的尺寸可从4纳米调控到25纳米,同时该生物相容性磁性纳米晶体结晶度高、粒度分布窄,表面功能化生物相容性高分子修饰保证其生物应用的要求。该技术方法操作简便、重复性高,可用于大规模的商品化。
附图说明
图1本发明实施例1所得凝胶的倒置照片。
图2本发明实施例1所得凝胶的粘度随孵育温度和孵育时间的变化图。
图3本发明实施例2所得样品的透射电镜照片及其柱状分布图。
图4本发明实施例2所得样品的粉末X射线衍射图(a)和所得样品在外加磁场下磁滞回线图(b)。
图5本发明实施例2所得样品在水中的动态光散射分布图。
图6本发明实施例3所得样品的透射电镜照片及其柱状分布图。
图7本发明实施例4所得样品的透射电镜照片及其柱状分布图。
图8本发明实施例5所得样品的透射电镜照片及其柱状分布图。
图9本发明实施例6所得样品的透射电镜照片及其柱状分布图。
图10本发明实施例7所得样品的透射电镜照片及其柱状分布图。
图11本发明实施例8所得样品的透射电镜照片及电子衍射图。
图12本发明实施例9所得样品的透射电镜照片及其柱状分布图。
具体实施方式
实施例1:
称取2.12g的三乙酰丙酮铁(Fe(acac)3),7.9mL的油胺以及24.0g的双羧基聚乙二醇2000(HOOC-PEG-COOH)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,然后将反应液在40度孵育0小时、40度孵育12小时、40度孵育3天、40度孵育5天、80度孵育4小时、140度孵育4小时,得到不同凝胶程度的母液。图1显示了三乙酰丙酮铁与双羧基聚乙二醇和油胺在二苯醚中形成凝胶的倒置照片。图2显示了凝胶在不同孵育温度下粘度随孵育时间延长的变化趋势。
实施例2:
称取2.12g的三乙酰丙酮铁(Fe(acac)3),7.9mL的油胺以及24.0g的双羧基聚乙二醇2000(HOOC-PEG-COOH)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,然后直接将反应母液在15min内加热至253度,在400rpm的机械搅拌条件下进行反应。反应30min后,将反应液冷却至室温,加入乙醇和***的混合溶剂沉淀所得的反应溶液,经过磁分离纯化3次后,将磁性纳米晶体溶于去离子水中,并透析2天,即得到可直接使用的磁性纳米晶体的水溶液。图3为所得磁性纳米晶体的透射电镜(TEM)照片,由图可知纳米颗粒的平均直径为11.3nm,粒度分布为13%。图4a为所得磁性纳米颗粒的粉末X射线衍射(XRD)图,表明所制备的样品为尖晶石面心立方晶体结构的Fe3O4纳米晶体。此外,采用邻菲啰啉显色实验测定Fe含量结果表明Fe3+∶Fe2+的比例为2∶1,进一步证实了所制备的样品为Fe3O4纳米晶体。磁性纳米晶体的磁学性质采用振动样品磁强计(VSM)测定,磁性纳米晶体在室温下的磁滞回线如图4b所示,结果表明所制得的样品具有超顺磁性,饱和磁化强度为20.5emu/g,结合热重分析对晶体表面有机物含量的测定结果,纯Fe3O4纳米晶体的饱和磁化强度为50.2emu/g。利用动态光散射对样品流体力学尺寸进行流体力学测试(图5),结果表明图1所示的Fe3O4纳米晶体在水中保持了良好的分散性,并没有聚集和沉淀生成。
实施例3:
按照实施例1的步骤,将反应混合液在40度孵育12小时得到反应母液,将此反应母液按照实施例2的方法制备生物相容性磁性纳米晶体。图6为所得磁性Fe3O4纳米晶体的透射电镜(TEM)照片,由图可知磁性纳米晶体的平均直径为12.1nm,粒度分布为14%。
实施例4:
按照实施例1的步骤,将反应混合液在40度孵育3天得到反应母液,将此反应母液按照实施例2的方法制备生物相容性磁性纳米晶体。图7为所得磁性Fe3O4纳米晶体的透射电镜(TEM)照片,由图可知磁性纳米晶体的平均直径为14.1nm,粒度分布为11%。
实施例5:
按照实施例1的步骤,将反应混合液在40度孵育5天得到反应母液,将此反应母液按照实施例2的方法制备生物相容性磁性纳米晶体。图8为所得磁性Fe3O4纳米晶体的透射电镜(TEM)照片,由图可知磁性纳米晶体的平均直径为14.3nm,粒度分布为11%。
实施例6:
按照实施例1的步骤,将反应混合液在80度孵育4h得到反应母液,将此反应母液按照实施例2的方法制备生物相容性磁性纳米晶体。图9为所得磁性Fe3O4纳米晶体的透射电镜(TEM)照片,由图可知磁性纳米晶体的平均直径为15.6nm,粒度分布为12%。
实施例7:
按照实施例1的步骤,将反应混合液在140度孵育4h得到反应母液,将此反应母液按照实施例2的方法制备生物相容性磁性纳米晶体。图10为所得磁性Fe3O4纳米晶体的透射电镜(TEM)照片,由图可知磁性纳米晶体的平均直径为18.9nm,粒度分布为11%。
实施例8:
称取1.52g的乙酰丙酮锰(Mn(acac)2),7.9mL的油胺以及24.0g的双羧基聚乙二醇2000(HOOC-PEG-COOH)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。然后按照实施例2的步骤直接将反应母液在15min内加热至253度,在400rpm的机械搅拌条件下进行反应。反应2h后,将反应液冷却至室温,加入乙醇和***的混合溶剂沉淀所得的反应溶液,经过离心分离纯化3次后将磁性纳米晶体溶于去离子水中,并透析2天,即得到可直接使用的磁性纳米晶体的水溶液。图11为所得磁性纳米晶体的透射电镜(TEM)照片,由图可知纳米颗粒的平均直径为40.4nm,相应的电子衍射结果表明所制备的磁性纳米晶体为Mn3O4纳米晶体。
实施例9:
称取0.087g的乙酰丙酮锰(Mn(acac)2)和0.212g的三乙酰丙酮铁(Fe(acac)3),0.3mL的油胺以及3.6g的双羧基聚乙二醇2000(HOOC-PEG-COOH)溶于15mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。然后按照实施例2的步骤直接将反应母液在15min内加热至253度,在400rpm的机械搅拌条件下进行反应。其余操作均同实施例2。图12为所得的磁性纳米晶体的透射电镜(TEM)照片,由图可知纳米颗粒的平均直径为4.8nm,通过电感耦合等离子发射光谱(ICP)测得所制备的磁性纳米晶体中Mn∶Fe为1∶2,表明所制备的磁性纳米晶体为MnFe2O4纳米晶体。
实施例10:
称取0.1927g的乙酰丙酮钴(Co(acac)2),1.7mL的油酸以及24.0g的双胺基聚乙二醇2000(H2N-PEG-NH2)溶于25mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。然后按照实施例2的步骤直接将反应母液在15min内加热至253度,在400rpm的机械搅拌条件下进行反应。反应4h后,将反应液冷却至室温,加入乙醇和***的混合溶剂沉淀所得的反应溶液,经过离心分离纯化3次后将磁性纳米晶体溶于去离子水中,并透析2天,即得到可直接使用的磁性纳米晶体的水溶液。所得CoO磁性纳米晶体的平均直径为5nm。
实施例11:
称取2.12g的三乙酰丙酮铁(Fe(acac)3),7.9mL的油胺以及24.0g的聚乙二醇(PEG)与聚丙氨酸(PLAA)的嵌段共聚物(PLAA-PEG-PLAA)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。然后按照实施例2的步骤直接将反应母液在15min内加热至253度,在400rpm的机械搅拌条件下进行反应。其余操作均同实施例2。所制备的生物相容性磁性纳米晶体的尺寸为12nm。
实施例12:
称取2.12g的三氯化铁(FeCl3),7.9mL的油胺以及24.0g的双羧基聚乙二醇2000(HOOC-PEG-COOH)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。然后按照实施例2的步骤直接将反应母液在15min内加热至253度,在400rpm的机械搅拌条件下进行反应。其余操作均同实施例2。所得生物相容性磁性氧化铁纳米晶体的尺寸为8~15nm。
实施例13:
称取2.72g的三乙酰丙酮钆(Gd(acac)3),7.9mL的油胺以及24.0g的双羧基聚乙二醇2000(HOOC-PEG-COOH)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。其余操作均同实施例2,3,6。所制备的氧化钆磁性纳米晶体的尺寸在8~25nm。
实施例14
称取2.76g的三乙酰丙酮镝(Dy(acac)3),7.9mL的油胺以及24.0g的双羧基聚乙二醇2000(HOOC-PEG-COOH)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。其余操作均同实施例2,3,6。所制备的氧化镝磁性纳米晶体的尺寸在5~20nm。
实施例15:
称取1.628g的三氯化钬(HoCl3),7.9mL的油胺以及24.0g的双羧基聚乙二醇2000(HOOC-PEG-COOH)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。其余操作均同实施例2,3,6。所制备的氧化钬磁性纳米晶体的尺寸在7~22nm。
实施例16:
称取2.72g的三乙酰丙酮钆(Gd(acac)3),7.9mL的油胺以及24.0g的双巯基聚乙二醇2000(HS-PEG-SH)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。其余操作均同实施例2,3,6。所制备的氧化钆磁性纳米晶体的尺寸在8~25nm。
实施例17:
称取2.12g的三乙酰丙酮铁(Fe(acac)3),7.9mL的油胺以及24.0g的双羧基聚乙二醇2000(HOOC-PEG-COOH)溶于100mL三辛胺中,将反应混合溶液通氮气除氧2h,得到反应母液。其余操作均同实施例2,3,6。所制备的氧化铁磁性纳米晶体的尺寸在4~25nm。
实施例18:
称取2.12g的三乙酰丙酮铁(Fe(acac)3),7.9mL的油胺以及48.0g的双羧基聚乙二醇4000(HOOC-PEG-COOH)溶于100mL二苯醚中,将反应混合溶液通氮气除氧2h,得到反应母液。其余操作均同实施例2,3,6。所制备的氧化铁磁性纳米晶体的尺寸在5~20nm。
从上述各个实施例以及其余的实验中,我们可以得出以下结论:(1)金属前驱体与多功能基团的高分子形成凝胶,可以作为反应的前躯体;(2)通过调节孵育温度和孵育时间来控制其凝胶化强度,较高的温度能使反应母液缩短孵育时间;(3)不同凝胶化强度的凝胶做前驱体,可制备得到不同尺寸的生物相容性磁性纳米晶体;(4)通过控制前躯体凝胶程度的方法,在不改变反应原料及配比的条件下,可实现单一配方下生物相容性磁性纳米晶体尺寸的调控。
Claims (10)
1.一种单一配方生物相容性磁性纳米晶体尺寸控制制备方法,其特征是:通过一种反应配方制备不同尺寸的生物相容性磁性纳米晶体:
将金属前驱体、生物相容性高分子和带烷基链的小分子溶于高沸点非极性溶剂或高沸点弱极性溶剂中形成母液,通入惰性气体排除反应体系中的氧气,在不同温度条件下对母液进行不同时间的恒温孵育,形成不同粘度的凝胶,然后经高温热分解反应得到不同尺寸的生物相容性磁性纳米晶体,
其中,
所述的生物相容性高分子是2个以上功能基团修饰的高分子,
所述的孵育温度范围是15摄氏度~200摄氏度,
所述的孵育时间范围是0~5天,
所述的凝胶的粘度范围在0.01~200帕秒。
2.根据权利要求1所述的制备方法,其特征是:所述的生物相容性磁性纳米晶体具有顺磁性、超顺磁性或铁磁性。
3.根据权利要求1所述的制备方法,其特征是:所述的生物相容性磁性纳米晶体的尺寸调控范围是4~25纳米。
4.根据权利要求1所述的制备方法,其特征是:所述的生物相容性高分子选自聚乙二醇或含有聚乙二醇链段的嵌段共聚物,上述聚合物分子量为600~20000,端基修饰有2个以上的羧基、巯基、胺基或磷酸基团。
5.根据权利要求1所述的制备方法,其特征是:所述的生物相容性高分子是线型、支化的聚乙二醇,线型、支化的聚乙二醇与聚丙烯酸、聚甲基丙烯酸、聚乙烯胺、聚丙氨酸、聚赖氨酸、聚亮氨酸、聚谷氨酸、聚天冬氨酸、聚己内酯或聚乳酸形成的嵌段共聚物中的一种。
6.根据权利要求1所述的制备方法,其特征是:所述的金属前驱体是含有过渡金属或稀土金属的有机配合物或者无机化合物。
7.根据权利要求6所述的制备方法,其特征是:所述的过渡金属或稀土元素选自铁、钴、镍、锰和镧系稀土金属元素中至少一种。
8.根据权利要求6所述的制备方法,其特征是:所述的过渡金属或稀土金属的有机化合物包括乙酰丙酮配合物、油酸配合物、硬脂酸配合物、苯基乙酰丙酮配合物、羰基配合物;所述的过渡金属或稀土金属的无机化合物包括氯化盐、草酸盐、醋酸盐、硫酸盐、硝酸盐。
9.根据权利要求1所述的制备方法,其特征是:所述的高沸点非极性溶剂或高沸点弱极性溶剂的沸点高于160℃。
10.根据权利要求1所述的制备方法,该方法还包括以下步骤:
加入有机溶剂沉淀并洗涤生物相容性磁性纳米晶体,通过离心分离或磁分离得到生物相容性磁性纳米晶体;将所得生物相容性磁性纳米晶体溶于去离子水中,通过透析进行纯化,得到生物相容性磁性纳米晶体溶液。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6262129B1 (en) * | 1998-07-31 | 2001-07-17 | International Business Machines Corporation | Method for producing nanoparticles of transition metals |
WO2003031323A1 (en) * | 2001-10-12 | 2003-04-17 | Korea Nano Technology Co., Ltd. | Synthesis of mono-disperse and highly-crystalline nano-particles of metals, alloys, metal oxides, and multi-metallic oxides without a size-selection process |
CN1549283A (zh) * | 2003-05-15 | 2004-11-24 | 中国科学院化学研究所 | 一种高结晶度的水分散性磁性纳米微粒的制备方法 |
CN101178961A (zh) * | 2006-11-10 | 2008-05-14 | 中国科学院化学研究所 | 高溶解度的水溶磁性纳米晶体及其制备方法 |
CN101241788A (zh) * | 2007-01-15 | 2008-08-13 | 中国科学院化学研究所 | 在生理缓冲液中能够高度溶解并稳定分散的生物相容性磁性纳米晶体及其制备方法 |
CN101433965A (zh) * | 2008-12-17 | 2009-05-20 | 厦门大学 | 一种单分散镍纳米粒子的制备方法 |
-
2012
- 2012-04-06 CN CN2012101001924A patent/CN102616735A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6262129B1 (en) * | 1998-07-31 | 2001-07-17 | International Business Machines Corporation | Method for producing nanoparticles of transition metals |
WO2003031323A1 (en) * | 2001-10-12 | 2003-04-17 | Korea Nano Technology Co., Ltd. | Synthesis of mono-disperse and highly-crystalline nano-particles of metals, alloys, metal oxides, and multi-metallic oxides without a size-selection process |
CN1549283A (zh) * | 2003-05-15 | 2004-11-24 | 中国科学院化学研究所 | 一种高结晶度的水分散性磁性纳米微粒的制备方法 |
CN101178961A (zh) * | 2006-11-10 | 2008-05-14 | 中国科学院化学研究所 | 高溶解度的水溶磁性纳米晶体及其制备方法 |
CN101241788A (zh) * | 2007-01-15 | 2008-08-13 | 中国科学院化学研究所 | 在生理缓冲液中能够高度溶解并稳定分散的生物相容性磁性纳米晶体及其制备方法 |
CN101433965A (zh) * | 2008-12-17 | 2009-05-20 | 厦门大学 | 一种单分散镍纳米粒子的制备方法 |
Non-Patent Citations (1)
Title |
---|
QIAOJUAN JIA,ET AL.: "Gelification:an effective measure for achieving differently sized biocompatible Fe3O4 nanocrystals through a single preparation recipe", 《JOURNAL OF THE AMERICAN CHEMICAL SOCIETY》 * |
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