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Folate encapsulation in PEG-diamine grafted mesoporous Fe3O4 nanoparticles for hyperthermia and in vitro assessment.
IET Nanobiotechnology ( IF 2.3 ) Pub Date : 2020-12-01 , DOI: 10.1049/iet-nbt.2020.0101
Ahmaduddin Khan 1 , Niroj Kumar Sahu 1
Affiliation  

Effective and targeted delivery of the antitumour drugs towards the specific cancer spot is the major motive of drug delivery. In this direction, suitably functionalised magnetic iron oxide nanoparticles (NPs) have been utilised as a theranostic agent for imaging, hyperthermia and drug delivery applications. Herein, the authors reported the preparation of multifunctional polyethyleneglycol-diamine functionalised mesoporous superparamagnetic iron oxide NPs (SPION) prepared by a facile solvothermal method for biomedical applications. To endow targeting ability towards tumour site, folic acid (FA) is attached to the amine groups which are present on the NPs surface by 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride/N-hydroxysuccinimide chemistry. FA attached SPION shows good colloidal stability and possesses high drug-loading efficiency of ∼ 96% owing to its mesoporous nature and the electrostatic attachment of daunosamine (NH3+) group of doxorubicin (DOX) towards the negative surface charge of carboxyl and hydroxyl group. The NPs possess superior magnetic properties in result endowed with high hyperthermic ability under alternating magnetic field reaching the hyperthermic temperature of 43°C within 223 s at NP's concentration of 1 mg/ml. The functionalised NPs possess non-appreciable toxicity in breast cancer cells (MCF-7) which is triggered under DOX-loaded SPION.

中文翻译:

PEG-二胺接枝介孔 Fe3O4 纳米颗粒中的叶酸包封用于热疗和体外评估。

将抗肿瘤药物有效和靶向递送至特定癌症部位是药物递送的主要动机。在这个方向上,适当功能化的磁性氧化铁纳米粒子 (NPs) 已被用作成像、热疗和药物输送应用的治疗诊断剂。在此,作者报道了通过简便的溶剂热法制备用于生物医学应用的多功能聚乙二醇-二胺功能化介孔超顺磁性氧化铁纳米粒子 (SPION)。为了赋予对肿瘤部位的靶向能力,叶酸 (FA) 通过 1-乙基-3-(3-二甲基氨基丙基) 碳化二亚胺盐酸盐/N-羟基琥珀酰亚胺化学作用附着在 NPs 表面上的胺基上。FA 连接的 SPION 显示出良好的胶体稳定性,并且由于其介孔性质和多柔比星 (DOX) 的道诺糖胺 (NH3+) 基团对羧基和羟基的负表面电荷的静电附着,具有约 96% 的高载药效率。NPs 具有优异的磁性,在 1 mg/ml 的 NPs 浓度下,在 223 s 内达到 43°C 的高温温度的交变磁场下具有高高温能力。功能化的 NP 在载有 DOX 的 SPION 下触发的乳腺癌细胞 (MCF-7) 中具有不可察觉的毒性。NPs 具有优异的磁性,在 1 mg/ml 的 NPs 浓度下,在 223 s 内达到 43°C 的高温温度的交变磁场下具有高高温能力。功能化的 NP 在载有 DOX 的 SPION 下触发的乳腺癌细胞 (MCF-7) 中具有不可察觉的毒性。NPs 具有优异的磁性,在 1 mg/ml 的 NPs 浓度下,在 223 s 内达到 43°C 的高温温度的交变磁场下具有高高温能力。功能化的 NP 在载有 DOX 的 SPION 下触发的乳腺癌细胞 (MCF-7) 中具有不可察觉的毒性。
更新日期:2020-12-01
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