Colloid and Polymer Science

, Volume 294, Issue 12, pp 2021–2028

Antimicrobial and antifouling nanocomposite hydrogels containing polythioether dendron: high-loading silver nanoparticles and controlled particle release

  • Daoyi Jiang
  • Yanyan Zhang
  • Fangmin Zhang
  • Zhixiong Liu
  • Jin Han
  • Xuedong Wu
Original Contribution

DOI: 10.1007/s00396-016-3967-7

Cite this article as:
Jiang, D., Zhang, Y., Zhang, F. et al. Colloid Polym Sci (2016) 294: 2021. doi:10.1007/s00396-016-3967-7

Abstract

A series of nanocomposite (NC) hydrogels containing dendritic polythioether segments were successfully prepared by free radical copolymerization. Due to the multiple thioether functional groups and the strong chelating ability of the thioether groups with metal elements, these hydrogels showed excellent absorption towards Ag nanoparticles. The size of the Ag nanoparticles (AgNPs) embedded in the hydrogel matrix can be regulated by tuning the content of dendritic segments in the polymer matrix. Small-sized AgNPs were formed with increasing of the content of polythioether dendrons. Besides, the Ag release kinetics was investigated. The hydrogels containing dendrons showed higher AgNPs loading and displayed enhanced retention of nanoparticles as compared with the pristine poly-N-isopropyl acrylamide (PNIPAM) hydrogel. Furthermore, these NC hydrogels, especially those containing dendritic segments, showed much better antimicrobial performance for Escherichia coli and anti-algae performance. These NC hydrogels have promising applications in marine antifouling coating and interfaces of biomaterials.

Keywords

Hydrogels Polythioether AgNPs Antifouling 

Copyright information

© Springer-Verlag Berlin Heidelberg 2016

Authors and Affiliations

  • Daoyi Jiang
    • 1
  • Yanyan Zhang
    • 1
  • Fangmin Zhang
    • 1
  • Zhixiong Liu
    • 1
  • Jin Han
    • 1
  • Xuedong Wu
    • 1
  1. 1.Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingboPeople’s Republic of China