Citation: Ren Xiangling, Wang Mingqian, He Xing, Li Zheng, Zhang Jing, Zhang Wei, Chen Xudong, Ren Hong, Meng Xianwei. Superoxide dismutase mimetic ability of Mn-doped ZnS QDs[J]. Chinese Chemical Letters, ;2018, 29(12): 1865-1868. doi: 10.1016/j.cclet.2018.12.007 shu

Superoxide dismutase mimetic ability of Mn-doped ZnS QDs

Ren Xiangling ^a,e ,
Wang Mingqian ^a,c ,
He Xing ^a,c ,
Li Zheng ^a,c ,
Zhang Jing ^a,d ,
Zhang Wei ^b ,
Chen Xudong ^b,**, ,
Ren Hong ^d,**, ,
Meng Xianwei ^a,e,*,

a.
Laboratory of Controllable Preparation and Application of Nanomaterials, Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
b.
First Affiliated Hospital of Southern University of Science and Technology, Shenzhen People's Hospital & Shenzhen Interventional Medical Engineering Research and Development Center, Shenzhen 518020, China
c.
Beijing University of Chemical Technology, Beijing 100029, China
d.
Beijing Technology & Business University, Beijing Higher Institution Engineering Research Center of Food Additives and Ingredients, Beijing Key Laboratory of Flavor Chemistry, Beijing Laboratory for Food Quality and Safety, Beijing 100048, China
e.
University of Chinese Academy of Sciences, Beijing 100049, China

^**

Chenxudong9999@126.com

renhong@th.btbu.edu.cn

mengxw@mail.ipc.ac.cn

Received Date: 19 November 2018
Revised Date: 30 November 2018
Accepted Date: 3 December 2018
Available Online: 5 December 2018

Figures(4)

Superoxide dismutase (SOD) is an important antioxidant enzyme in the body. SOD has special physiological activity and is the primary substance for scavenging free radicals in living organisms. However, the expensive and complex extraction processes, low SOD yield, as well as difficult to store at room temperature have seriously hindered its application pace. Herein, the enzyme mimetic function of Mn-doped ZnS quantum dots (QDs) was discovered. The improved Marklund and McCord method both showed that Mn-doped ZnS QDs possess intrinsic SOD-like activity. The effects of temperature and pH on the mimetic enzyme activity of Mn-doped ZnS QDs have been investigated compared with SOD enzymes. The low cost and easy to synthesize white Mn-doped ZnS QDs with good biocompatibility are expected to be used as a new type of SOD nanozymes in the biology-relevant fields.
- Mn-doped ZnS QDs,
- Superoxide dismutase,
- Nanozymes,
- Marklund method,
- Pyrogallol
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