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Diketopyrrolopyrrole-based semiconducting polymer nanoparticles for in vivo second near-infrared window imaging and image-guided tumor surgery†
Chemical Science ( IF 7.6 ) Pub Date : 2018-02-06 00:00:00 , DOI: 10.1039/c8sc00206a
Kangquan Shou 1, 2 , Yufu Tang 3 , Hao Chen 2 , Si Chen 2 , Lei Zhang 2 , Ao Zhang 4 , Quli Fan 3 , Aixi Yu 1 , Zhen Cheng 2
Affiliation  

A diketopyrrolopyrrole-based semiconducting polymer nanoparticle (PDFT1032) has been developed as a NIR-II (near infrared window II, 1000–1700 nm) fluorescent probe. It shows high photostability, a favorable absorption peak at 809 nm, a large Stokes shift of 223 nm, outstanding biocompatibility and minimal in vivo toxicity. More importantly, the versatile use of PDFT1032 for several important biomedical applications in the NIR-II window has been demonstrated, including the NIR-II optical imaging of tumors on a subcutaneous osteosarcoma model, assessing the vascular embolization therapy of tumors, and NIR-II image-guided orthotopic tumor surgery and sentinel lymph node biopsy (SLNB) with high spatial and temporal resolution. Overall, excellent biocompatibility, favorable hydrophilicity, and desirable chemical and optical properties make the semiconducting polymer nanoparticle PDFT1032 a highly promising NIR-II imaging probe with the potential to be widely applicable in clinical imaging and the surgical treatment of malignancy.

中文翻译:

基于二酮吡咯并吡咯的半导体聚合物纳米粒子,用于体内第二近红外窗口成像和图像引导肿瘤手术†

基于二酮吡咯并吡咯的半导体聚合物纳米颗粒 (PDFT1032) 已被开发为 NIR-II(近红外窗口 II,1000–1700 nm)荧光探针。它具有高光稳定性、809 nm 处良好的吸收峰、223 nm 的大斯托克斯位移、出色的生物相容性和最小的体内毒性。更重要的是,PDFT1032在NIR-II窗口中的几个重要生物医学应用中的多功能用途已被证明,包括皮下骨肉瘤模型上肿瘤的NIR-II光学成像、评估肿瘤的血管栓塞治疗以及NIR-II具有高空间和时间分辨率的图像引导原位肿瘤手术和前哨淋巴结活检(SLNB)。总体而言,优异的生物相容性、良好的亲水性以及理想的化学和光学特性使半导体聚合物纳米颗粒PDFT1032成为一种非常有前途的NIR-II成像探针,有可能广泛应用于临床成像和恶性肿瘤的手术治疗。
更新日期:2018-02-06
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