Mesoporous LaB6@calcium silicate composite: Preparation, NIR photothermal conversion and drug delivery properties

被引：7
作者：
Hang, Chunliang [1 ]
Yang, Lixia [1 ]
Liang, Ying [1 ]
Jin, Rencheng [1 ]
Wang, Feng [1 ]
Xu, Yanbin [1 ]
Liu, Qian [1 ]
机构：
[1] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2018年 / 44卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Photothermal conversion; LaB6@calcium silicate; Composite; Drug release; NANOPARTICLES; HEXABORIDE;
D O I：
10.1016/j.ceramint.2018.02.037
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Mesoporous LaB6@calcium silicate composite with a core-shell structure has been prepared at 72 degrees C for 20 min via a sonochemical method using Ca(NO3)(2) and TEOS as raw materials. The obtained products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Brunauer-Emmet-Teller (BET) method. The results showed that LaB6 nanoparticles were coated by calcium silicate nanosheets. The specific surface area of LaB6@calcium silicate composite was larger than that of LaB6 nanoparticles. Photothermal conversion test indicated that both LaB6 nanoparticles and LaB6@ calcium silicate composite showed superior photothermal conversion performance and the amount of calcium silicate had an effect on the photothermal conversion property of the composite. LaB6 nanoparticles and porous LaB6@ calcium silicate composite were explored as drug carriers. IBU release percentages of LaB6@calcium silicate composites were all more than 65%, much higher than that of LaB6 nanoparticles. LaB6@calcium silicate composite showed a favorable release property for IBU in SBF.
引用
收藏
页码：8427 / 8434
页数：8
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