The underlying mechanism for the enhanced radical trapping effects of nanoparticles surface-functionalized with antioxidants: A kinetic study

被引：1
作者：
Zhang, Xiaojie [1 ,2 ]
He, Zeng [3 ]
Liu, Yang [1 ]
Du, Libo [1 ,2 ]
机构：
[1] Chinese Acad Sci, Ctr Mol Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, 2,Zhongguancun North 1st St, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Grad Sch, 19 A Yuquan Rd, Beijing BEIJING, Peoples R China
[3] Peoples Govt Tibetan Autonomous, Hosp Chengdu Off, 20 Ximianqiao St, Chengdu 610041, Sichuan, Peoples R China
来源：
NANOIMPACT | 2021年 / 23卷
基金：
中国国家自然科学基金;
关键词：
Antioxidant; Catalysis; pi-pi stacking interaction; Activation energy; Rate constant; Chain length; HYDROGEN-ATOM ABSTRACTIONS; VITAMIN-E; ESR;
D O I：
10.1016/j.impact.2021.100328
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The enhancement in reactivity of the antioxidant functionalized gold nanoparticles is closely related to the rate constant and activation energy, which were significantly affected by the chain length of the PEG ligands that capped the gold nanoparticles. Meanwile, the enhancement could be attributed to the pi-pi stacking interaction between the adjacent phenol groups coated on gold nanoparticles' surface.
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页数：5
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