Chem. J. Chinese Universities ›› 2020, Vol. 41 ›› Issue (6): 1391.doi: 10.7503/cjcu20190721

• Material Chemistry • Previous Articles     Next Articles

Novel Biosynthesis Method of Silver Nanoparticle by UV Radiation of Cornus Officinalis Aqueous Extract and Biological Activities

WEI Simin1,WANG Yinghui2,*(),TANG Zhishu1,*(),SU Rui1,HU Jinhang1,GUO Hui1,LI Chen1,JIANG Jintao1,SONG Zhongxing1   

  1. 1. Shaanxi Collaborative Innovation Center of Chinese Medicine Resources Industrialization, State Key Laboratory of Research & Development of Characteristic Qin Medicine Resources(Cultivation), Shaanxi Innovative Drug Research Center, Shaanxi University of Chinese Medicine, Xianyang 712083, China
    2. College of Science, Chang’an University, Xi’an 710064, China
  • Received:2019-12-31 Online:2020-06-10 Published:2020-03-06
  • Contact: Yinghui WANG,Zhishu TANG E-mail:wangyinghui@iccas.ac.cn;tzs6565@163.com
  • Supported by:
    † National Natural Science Foundation of China(21705029);National Natural Science Foundation of China(21701131);Young Talent Fund of University Association for Science and Technology in Shaanxi Province, China(20190307);Fundamental Research Funds for the Central Universities, Chang’an University, China(300102120303)

Abstract:

Owing to the widely applications of silver nanoparticles(AgNPs) in catalysis and biomedicine, researchers have focused their attentions on the formation method. In this work, a green and easy synthesis method of silver nanoparticles(AgNPs) by 254 nm ultraviolet lamp radiation using Cornus officinalis aqueous extract was reported, and the antioxidant, antibacterial and anticancer activities were assessed. The influence of the solution pH(7.0), material proportion(1∶1) and reaction time(1 h) on reduction reaction were discussed to confirm the most efficient reaction condition. X-ray diffraction(XRD), dynamic light scattering and transmission electron microscopy were conducted to investigate the shape, size and surface of the silver nanoparticles, revealing a face-centered cubic(fcc) structure and spherical shape with an average particle size of (55.4±0.9) nm covered by anion(Zeta potential: -10.2 mV). By calculating the free radical scavenging rate for DPPH, the antioxidant activities of AgNPs were assessing. When the concentration of AgNPs increased to 62.5 μg/mL, the free radical scavenging rate was 70% meaning a good antioxidant activity. Furthermore, the AgNPs generated by Cornus officinalis aqueous extract revealed significant inhibition on the growth of S. aureus and E. coli, where the MIC values were 3.9 and 7.8 μg/mL, respectively. The IC50 values for colorectal cancer cell HCT116 and SW620 were 23.1 and 35.1 μg/mL, respectively, indicating a good anticancer activity.

Key words: Cornus officinalis, Ultrasonic radiation, Silver nanoparticles, Biological activity

CLC Number: 

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