Journal
JOURNAL OF MATERIALS CHEMISTRY
Volume 21, Issue 32, Pages 11923-11929Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1jm11811k
Keywords
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Funding
- European community [PITN-GA-2008-215507]
- BMBF center of Excellence BIOTEC Marin
- State Excellence Cluster COMATT
- Deutsche Forschungsgemeinschaft [SPP1369, SFB 625]
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V2O5 nanowires act as biomimetic catalysts resembling vanadium haloperoxidases (V-HPO). The nanowires display iodinating activity as confirmed by a colorimetric assay using thymol blue (TB), UV/Vis spectrophotometry and mass spectrometry (FD-MS). In the presence of dopamine these nanowires catalyze the fast and efficient synthesis of melanin-like biopolymers under mild conditions (aqueous solution, neutral pH and room temperature). The resulting melanin-like biopolymer obtained by the V2O5 nanowire catalysts was characterized by scanning electron microscopy (SEM), X-ray diffraction, UV-Vis, FT-IR and electric conductivity resembling the natural biopolymer both in its chemical and morphological features. In addition, this synthetic biopolymer self-assembles into fibril-like structures by forming stacks due to p interactions between the aromatic rings.
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