A green route to water-soluble polyaniline for photothermal therapy catalyzed by iron phosphates peroxidase mimic

被引:25
作者
Li, Leilei [1 ]
Liang, Kaixuan [1 ]
Hua, Zhentao [1 ]
Zou, Min [2 ]
Chen, Kezheng [1 ]
Wang, Wei [1 ]
机构
[1] Qingdao Univ Sci & Technol, Coll Mat Sci & Engn, Lab Funct & Biomed Nanomat, Qingdao 266042, Peoples R China
[2] Yebio Bioengn Co Ltd, Qingdao 266032, Peoples R China
关键词
CANCER-CELLS; CONVERSION EFFICIENCY; POLYPYRROLE NANOPARTICLES; CONDUCTING POLYANILINE; GOLD NANOPARTICLES; CARBON NANOTUBES; ABLATION; AGENT; BIOCATALYSIS; NANOCRYSTALS;
D O I
10.1039/c4py01716a
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
A green route to water-soluble polyaniline (PANI) using iron phosphates (FePOs) peroxidase mimic as a catalyst and H2O2 as an oxidant is presented. Polystyrene sulfonate (PSS) is used as a template to synthesize a conductive PANI-PSS complex. PANI samples were characterized by UV-Vis spectroscopy, FT-IR spectroscopy and bulk conductivity measurement. Results indicated that the conductivity of the PANI catalyzed by the FePOs peroxidase mimic greatly depends on the pH, temperature and molar ratios of H2O2 and aniline. Superior to natural horseradish peroxidase, the prepared FePOs demonstrated a robust catalytic ability and could catalyze the formation of PANI-PSS at much lower pH values of 1.5-2.6. The photothermal effect of the FePOs catalyzed PANI samples was investigated and a high light-to-heat conversion efficiency of 39.6% was obtained for the sample with a conductivity of 2.576 x 10(-3) S cm(-1). Excellent biocompatibility and remarkable anti-tumor effect were observed for the prepared PANI with human cervical cancer (HeLa) cells as a cell model.
引用
收藏
页码:2290 / 2296
页数:7
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