首页> 外文期刊>Nanotechnology >Towards hybrid biocompatible magnetic rHuman serum albumin-based nanoparticles: use of ultra-small (CeLn)(3/4+) cation-doped maghemite nanoparticles as functional shell
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Towards hybrid biocompatible magnetic rHuman serum albumin-based nanoparticles: use of ultra-small (CeLn)(3/4+) cation-doped maghemite nanoparticles as functional shell

机译:迈向混合生物相容性基于人类rHuman血清白蛋白的磁性纳米颗粒:使用超小(CeLn)(3/4 +)阳离子掺杂磁赤铁矿纳米颗粒作为功能壳

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摘要

Human serum albumin (HSA) is a protein found in human blood. Over the last decade, HSA has been evaluated as a promising drug carrier. However, not being magnetic, HSA cannot be used for biomedical applications such as magnetic resonance imaging (MRI) and magnetic drug targeting. Therefore, subsequent composites building on iron oxide nanoparticles that are already used clinically as MRI contrast agents are extensively studied. Recently and in this context, innovative fully hydrophilic ultra-small CAN-stabilized maghemite ((CeLn)(3/4+)-gamma-Fe2O3) nanoparticles have been readily fabricated. The present study discusses the design, fabrication, and characterization of a dual phase hybrid core (rHSA)-shell ((CeLn)(3/4+)-gamma-Fe2O3 NPs) nanosystem. Quite importantly and in contrast to widely used encapsulation strategies, rHSA NP surface-attached (CeLn)(3/4+)-gamma-Fe2O3 NPs enabled to exploit both rHSA (protein functionalities) and (CeLn)(3/4+)-gamma-Fe2O3 NP surface functionalities (COOH and ligand L coordinative exchange) in addition to very effective MRI contrast capability due to optimal accessibility of H2O molecules with the outer magnetic phase. Resulting hybrid nanoparticles might be used as a platform modular system for therapeutic (drug delivery system) and MR diagnostic purposes.
机译:人血清白蛋白(HSA)是人血液中发现的一种蛋白质。在过去的十年中,HSA被评估为有前途的药物载体。但是,HSA不是磁性的,因此不能用于生物医学应用,例如磁共振成像(MRI)和磁性药物靶向。因此,广泛研究了在临床上已被用作MRI造影剂的氧化铁纳米颗粒上的后续复合材料。最近并且在这种情况下,已经很容易地制造出创新的完全亲水的超小型CAN稳定的磁赤铁矿((CeLn)(3/4 +)-γ-Fe2O3)纳米颗粒。本研究讨论了双相混合核(rHSA)-壳((CeLn)(3/4 +)-γ-Fe2O3NPs)纳米系统的设计,制造和表征。非常重要的是,与广泛使用的封装策略相比,rHSA NP表面附着的(CeLn)(3/4 +)-γ-Fe2O3NPs能够利用rHSA(蛋白质功能)和(CeLn)(3/4 +)- γ-Fe2O3NP表面功能(COOH和配体L配位交换)以及非常有效的MRI对比功能(由于H2O分子与外部磁相的最佳可及性)。所得的杂化纳米颗粒可以用作治疗性(药物递送系统)和MR诊断目的的平台模块化系统。

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