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Preparation of magnetic nanocomposite with modified polyguanidine and its antibacterial properties

Vietnam Journal of Chemistry, 2020-02, Vol.58 (1), p.113-118 [Peer Reviewed Journal]

2020 Vietnam Academy of Science and Technology, Hanoi & Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim ;ISSN: 0866-7144 ;EISSN: 2572-8288 ;DOI: 10.1002/vjch.2019000157

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  • Title:
    Preparation of magnetic nanocomposite with modified polyguanidine and its antibacterial properties
  • Author: Lan, Pham Thi ; Mai, Phan Thi Tuyet ; Minh, Vu Xuan ; Hanh, Le Thi My ; Van Bien, Tran ; Thao, Do Thi ; Dung, Nguyen Tuan
  • Subjects: antibacterial activity ; epichlorohydrin ; magnetic nanocomposite ; Polyguanidine modification
  • Is Part Of: Vietnam Journal of Chemistry, 2020-02, Vol.58 (1), p.113-118
  • Description: Guanidine‐based polymers are well‐known strong antimicrobial agents against a wide range of microorganisms. However, the high water solubility restricted their potential applications in the field of water treatment. In this study, polyguanidine (PG) has been modified with epichlorohydrin (Ep) and then used for synthesis of nanocomposite with Fe3O4 nanoparticles. The intrinsic viscosity measurements of modified product showed clearly that the viscosity increased with the increasing of Ep content. The characterization results indicated that magnetite Fe3O4/PG‐Ep nanocomposites were successfully synthesized, with 20‐30 nm particle size and high saturation magnetization, 62 emu.g‐1. The TGA results showed that PG‐Ep amount containing in the nanocomposite was about 10 % (wt.). As‐prepared nanocomposite Fe3O4/PG‐Ep demonstrated good antibacterial activity against Escherichia coli and had the potential to be used in disinfection applications.
  • Publisher: Weinheim: WILEY‐VCH Verlag GmbH & Co. KGaA
  • Language: English
  • Identifier: ISSN: 0866-7144
    EISSN: 2572-8288
    DOI: 10.1002/vjch.2019000157
  • Source: Alma/SFX Local Collection
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