4.8 Article

A poly(3-hydroxybutyrate)-chitosan polymer conjugate for the synthesis of safer gold nanoparticles and their applications

Journal

GREEN CHEMISTRY
Volume 20, Issue 21, Pages 4975-4982

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c8gc02495b

Keywords

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Funding

  1. Ministry of Education, Youth and Sports [LO 1201]
  2. OPR & DI project Extension of CxI facilities [CZ. 1.05/2.1.00/19.0386]
  3. Ministry of Education, Youth and Sports of the Czech Republic [LM2015073]
  4. European FP7 FutureNanoNeeds project [604602]
  5. Ministry of Education, Youth and Sports of the Czech Republic
  6. European Union - European Structural and Investment Funds in the frames of Operational Program Research, Development and Education - project Hybrid Materials for Hierarchical Structures (HyHi) [CZ. 02.1.01/0.0/0.0/16_019/0000843]

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A facile and eco-friendly approach is developed for the synthesis of a poly(3-hydroxybutyrate)-chitosan (PHB-chit) polymer conjugate, which is an ideal material for the synthesis of safer gold nanoparticles (nAu). The synthesized products are characterized by various electron-based, optical and spectroscopic techniques including the catalytic activity and the stability/toxicity of nAu. In contrast to the conventional synthesis approaches, the use of PHB-chit results in generation of a highly stable and size-controlled nAu material that exhibits important catalytic activity towards the reduction of 4-nitrophenol (4-NP) to 4-aminophenol, and at the same time shows no toxicity against living bacterial systems such as Escherichia coli or Staphylococcus aureus. The synthesis route reported herein would inspire future developments that circumvent toxicity issues of relevance to living systems while performing common catalytic experimentation.

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