摘要
在过去50多年中,磁性纳米粒子(MNPs)由于其可协调的磁性、非侵入性、易操控性和良好的生物相容性等优点得到了广泛的关注。从具有复合结构或不同形状的MNPs的合成方法到与MNPs相关的大量表征技术,其应用领域也与我们的生活紧密相关。然而,MNPs的复杂磁行为受到多种参量的影响,包括粒径、成分、形状和结构等。基于此,通过调节MNPs的主要参量提高其磁功能效果对后续的材料设计和应用具有重大的参考意义。其中,二价过渡金属离子的掺杂是影响MNPs各种磁性能(如磁矩(μ)、饱和磁化强度(M_(s))、矫顽力(H_(c))、磁晶各向异性(K)和弛豫时间(τ_(N)和τ_(B))等)重要参量之一。因此,本文着重介绍了通过向磁性纳米材料中掺杂过渡金属离子来精确调控其磁性的相关机理研究,并介绍了掺杂过渡金属离子的MNPs在生物成像检测(磁共振成像和磁性粒子成像)、药物精准递送和肿瘤治疗以及生物传感方面的潜在机制和所取得的最新进展,最后总结了目前MNPs所面临的一些挑战以及未来发展的趋势。
Magnetic nanomaterials(MNPs)have been extensively studied and applied in the past half century due to their unique properties including coordinated magnetic properties,non-invasive,easy manipulation,and good biocompatibility.However,the complex magnetic behavior of MNPs is influenced by a variety of factors,including particle size,composition,shape,and core-shell structure.Therefore,the main parameters of MNPs are needed to coordinate accordingly for specific applications to improve their effectiveness.Among them,doping of divalent transition metal ions is a crucial parameter affecting various magnetic properties of MNPs such as magnetic moment(μ),saturation magnetization strength(M_(s)),coercivity(H_(c)),magnetic crystal anisotropy(K)and relaxation time(τ_(N) and τ_(B)).Therefore,this review focuses on the mechanism of precisely regulating the magnetic properties of magnetic nanomaterials by doping them with transition metal ions,and introduces the potential mechanisms and some recent advances of MNPs doped with transition metal ions for bioimaging detection(magnetic resonance imaging and magnetic particle imaging),drug precision delivery and tumor therapy,and biosensing.Finally,we summarize some challenges and future trends of MNPs.
作者
杜慧
姚晨阳
彭皓
姜波
李顺祥
姚俊烈
郑方
杨方
吴爱国
DU Hui;YAO Chen-Yang;PENG Hao;JIANG Bo;LI Shun-Xiang;YAO Jun-Lie;ZHENG Fang;YANG Fang;WU Ai-Guo(Zhejiang Biomedical Materials Technology and Application International Science and Technology Cooperation Base,Key Laboratory of Magnetic Materials and Devices,Zhejiang Engineering Research Center for ImplantInterventional Materials,Cixi Institute of Biomedical Engineering,Ningbo Institute of Materials Technologyand Engineering,Chinese Academy of Sciences,Ningbo 315201,China;Guangdong Laboratory of Advanced Energy Science and Technology,Huizhou 516000,China;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《应用化学》
CAS
CSCD
北大核心
2022年第3期391-406,共16页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金(Nos.32025021,31971292,51873225)
国家科技部(Nos.2018YFC0910601,2019YFA0405603)
浙江省科技厅(No.2020C03110)
宁波市科技局(No.2020Z094)资助
关键词
磁性纳米材料
过渡金属掺杂
磁协调机理
生物成像
肿瘤治疗
药物递送
生物传感
Magnetic nanomaterials
Transition metal doping
Magnetic coordination mechanism
Bioimaging
Tumor therapy
Drug delivery
Biosensing
