A synergistically enhanced photothermal transition effect from mesoporous silica nanoparticles with gold nanorods wrapped in reduced graphene oxide

被引：43

作者：

Zhang, Zheng ^{[1
]}

Shi, Jun ^{[1
]}

Song, Zhixuan ^{[1
]}

Zhu, Xiaoyi ^{[1
]}

Zhu, Yaping ^{[1
]}

Cao, Shaokui ^{[1
]}

机构：

[1] Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2018年 / 53卷 / 03期

基金：

中国国家自然科学基金;

关键词：

DRUG-DELIVERY; HYBRID MICROPARTICLES; THERMAL-CONDUCTIVITY; THERAPY; STABILITY; LASER; FUNCTIONALIZATION; DOXORUBICIN; COMPOSITE; LAYER;

D O I：

10.1007/s10853-017-1628-y

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, near-infrared (NIR)-responsive core-shell gold nanorods/mesoporous silica/reduced graphene oxide (Au/SiO2/rGO) nanoparticles with synergistically enhanced photothermal stability and transition effect had been prepared via electrostatic interaction. Gold nanorods (AuNRs) and rGO were employed as the NIR-responsive components. UV-Vis-NIR extinction spectra revealed that the surface plasmon resonance peak of AuNRs from Au/SiO2/rGO nanohybrids remained unchanged after 9 h NIR exposure. UV-Vis-NIR extinction results also showed that thin silica shell was superior to the thick ones in the photothermal stability improvement of Au/SiO2/rGO nanoparticles. Moreover, the doxorubicin release of Au/SiO2/rGO was more rapid than that of Au/SiO2 upon NIR irradiation, indicating that synergistically enhanced photothermal effect between rGO and AuNRs endowed Au/SiO2/rGO nanoparticles with excellent photothermal transition efficiency. Such novel NIR-responsive core-shell hybrid nanoparticles with enhanced photothermal stability and transition effect are well suited for further biological applications, such as photothermal therapy, bioimaging and drug delivery.

引用

页码：1810 / 1823

页数：14

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