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Ultrahigh 19F Loaded Cu1.75S Nanoprobes for Simultaneous 19F Magnetic Resonance Imaging and Photothermal Therapy
ACS Nano ( IF 15.8 ) Pub Date : 2016-01-12 00:00:00 , DOI: 10.1021/acsnano.5b06759
Hongli Chen 1 , Manli Song 2 , Juan Tang 1 , Gaofei Hu 1 , Suying Xu 1 , Zhide Guo 2 , Nannan Li 1 , Jiabin Cui 1 , Xianzhong Zhang 2 , Xiaoyuan Chen 3 , Leyu Wang 1
Affiliation  

19F magnetic resonance imaging (MRI) is a powerful noninvasive, sensitive, and accurate molecular imaging technique for early diagnosis of diseases. The major challenge of 19F MRI is signal attenuation caused by the reduced solubility of probes with increased number of fluorine atoms and the restriction of molecular mobility. Herein, we present a versatile one-pot strategy for the fabrication of a multifunctional nanoprobe with high 19F loading (∼2.0 × 108 19F atoms per Cu1.75S nanoparticle). Due to the high 19F loading and good molecular mobility that results from the small particle size (20.8 ± 2.0 nm) and ultrathin polymer coating, this nanoprobe demonstrates ultrahigh 19F MRI signal. In vivo tests show that this multifunctional nanoprobe is suitable for 19F MRI and photothermal therapy. This versatile fabrication strategy has also been readily extended to other single-particle nanoprobes for ablation and sensitive multimodal imaging.

中文翻译:

超高19 F负载Cu 1.75 S纳米探针,可同时进行19 F磁共振成像和光热疗法

19 F磁共振成像(MRI)是一种功能强大的无创,灵敏,准确的分子成像技术,可用于疾病的早期诊断。19 F MRI的主要挑战是信号的衰减,这是由于探针的溶解度降低,氟原子数增加以及分子​​迁移率受到限制而引起的。在本文中,我们提出了一种通用的一锅策略,用于制备具有高19 F负载(每个Cu 1.75 S纳米粒子约2.0×10 8 19 F原子)的多功能纳米探针。由于小粒径(20.8±2.0 nm)和超薄聚合物涂层带来的高19 F负载和良好的分子迁移性,因此该纳米探针显示出19F MRI信号。体内测试表明,这种多功能纳米探针适用于19 F MRI和光热疗法。这种通用的制造策略也已经很容易地扩展到用于消融和敏感的多峰成像的其他单粒子纳米探针。
更新日期:2016-01-12
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