纳米材料在影像辅助的肿瘤光热治疗中的应用

Nano-materials for Image-guided Tumor Photo-thermal Therapy

肿瘤光热治疗作为一种利用局部高温热杀伤肿瘤的疗法,与传统疗法相比具有微创、副作用小、辅助杀菌等优势。目前研究发现的光热转化材料种类繁多,将各种不同的纳米材料应用于肿瘤光热治疗,在动物肿瘤模型实验中都取得了较好的治疗效果,其中许多材料兼具或易与影像探针结合而具有临床成像功能。近年来影像辅助的肿瘤光热治疗的研究发展迅速。本文综述了近年来兼具影像功能的纳米材料在肿瘤光热治疗中的最新应用进展,并探讨了这一新兴领域的发展趋势。

Photo-thermal therapy（PTT） is based on localized heating by light absorption for selective ablation of abnormal cells. PTT is highly selective to diseased sites, minimally invasive to normal tissues, and antiseptic in comparison with traditional therapies. The key component of PTT is photothermal transducers that can absorb and convert near-infrared light（NIR） into heat with high efficiency. Up to date, a variety of NIR photothermal transducers have been developed. Application of NIR photothermal conversion nano-materials in imaging-assisted PTT as well as its development trend is focused in this review.