Loading...

HRP-dendron nanoparticles: The efficient biocatalyst for enzymatic polymerization of poly(2,5-dimethoxyaniline)

Khosravi, A ; Sharif University of Technology | 2013

1671 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.molcatb.2013.01.003
  3. Publisher: 2013
  4. Abstract:
  5. Synthesis of poly(2,5-dimethoxyanilie) (PDMA) catalyzed by nano reengineered horseradish peroxidase (HRP) with dendritic macromolecules, was studied as a function of reaction media. UV-vis, gel permeation chromatography and conductivity measurements were used to explain how the reaction media compositions influence the physical properties of PDMA. Nanostructured PDMA was also synthesized by oxidative polymerization in a novel and green bi-catalyst system involving HRP and ferric chloride. FTIR and UV-vis analysis confirmed the formation of emeraldine salt state of PDMA. The thermal stability of reengineered HRP granted further studies on the polymerization using bi-catalyst system at temperature of 50 °C. The scanning electron microscopy images showed the changes in the morphology of synthesized PDMA from nanoporous structures to rod-like shapes by increasing the reaction temperature
  6. Keywords:
  7. Thermal stability ; 2,5-Dimethoxyaniline ; Conductivity measurements ; Dendritic macromolecules ; Enzymatic Polymerization ; Nanoporous structures ; Oxidative polymerization ; Catalysts ; Chlorination ; Chlorine compounds ; Dendrimers ; Scanning electron microscopy ; Thermodynamic stability ; Polymerization ; Aniline derivative ; Ferric chloride ; Horseradish peroxidase ; Nanomaterial ; Nanoparticle ; Poly(2,5 dimethoxyaniline) ; Polymer ; Unclassified drug ; Biocatalyst ; Chemical composition ; Conductance ; Gel permeation chromatography ; Infrared spectroscopy ; Macromolecule ; Molecular imaging ; Morphology ; PH ; Porosity ; Protein polymerization ; Synthesis ; Temperature ; Thermostability ; ultraviolet radiation ; Armoracia rusticana
  8. Source: Journal of Molecular Catalysis B: Enzymatic ; Volume 90 , June , 2013 , Pages 139-143 ; 13811177 (ISSN)
  9. URL: http://www.sciencedirect.com/science/article/pii/S1381117713000118