Hypocrellin-Loaded Gold Nanocages with High Two-Photon Efficiency for Photothermal/Photodynamic Cancer Therapy in Vitro

被引：364

作者：

Gao, Liang ^{[1
]}

Fei, Jinbo ^{[1
]}

Zhao, Jie ^{[1
]}

Li, Hong ^{[1
]}

Cui, Yue ^{[1
]}

Li, Junbai ^{[1
]}

机构：

[1] Chinese Acad Sci, BNLMS, Key Lab Colloid & Interface Sci, Inst Chem, Beijing 100190, Peoples R China

来源：

ACS NANO | 2012年 / 6卷 / 09期

关键词：

gold nanocages; photosensitizer; two-photon photodynamic therapy; photothermal therapy; synergistic effect; PHOTODYNAMIC THERAPY; DRUG-DELIVERY; PHOTOTHERMAL THERAPY; ENERGY-TRANSFER; RELEASE; HYPERTHERMIA; COMBINATION; NANOPARTICLES; NANOSHELLS; ABSORPTION;

D O I：

10.1021/nn302634m

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

A new bioconjugate nanostructure was constructed by using photosensitizer-incorporated mixed lipid-coated gold nanocages for two-photon photothermal/photodynamic cancer therapy in vitro with high efficiency. Scanning electron microscopic and transmission electron microscopic images reveal that the precursors and bioconjugate nanostructure as-prepared are narrowly dispersed and possess uniform morphologies. The relevant energy dispersion X-ray analysis and UV-vis spectra indicate that the bioconjugate nanostructure above was assembled successfully and has a strong absorption in the near-infrared region. Fluorescence and electronic spin resonance results show that the gold nanocage in the bioconjugate nanostructure can dramatically quench the photosensitizer and inhibit the production of singlet oxygen, which is supposed to alleviate the photosensitizers' unwanted side effects originating from their nontargeted distribution. We have demonstrated that as the nanocomplex is internalized by cancer cells, under two-photon illumination, photodynamic anticancer treatment is dramatically enhanced by the photothermal effect.

引用

页码：8030 / 8040

页数：11

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