Rational Formation of Peptides Hybrid Nanoflower With Its Enzyme-Mimic and Antimicrobial Activities


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Taşdemir D., Çelik Ç., Yusufbeyoğlu S., Ildız N. , Avan İ., Yılmaz V. , ...More

International Eurasian Conference on Biological and Chemical Sciences (EurasianBioChem 2018), Ankara, Turkey, 26 - 27 April 2018, vol.1, no.1, pp.273-279

  • Publication Type: Conference Paper / Full Text
  • Volume: 1
  • City: Ankara
  • Country: Turkey
  • Page Numbers: pp.273-279

Abstract

In this study, we develop, for the first time, the synthesis of novel peptide-inorganic hybrid nanoflowers (HNFs) formed of tripeptide as an organic component and copper (II) ion as an inorganic component in phosphate buffer saline (PBS) solution and to cast light on their peroxidase mimic and antimicrobial activities. The peptide used in the HNF was synthesized from three nonpolar and hydrophobic amino acids (glycine, leucine and phenylalanine). The presence of abundantly nonpolar R groups, Cu2+ ions and pores in the HNFs are relatively responsible in performing their peroxidase mimic activity by oxidation of guaiacol to colored 3,3-dimethoxy-4,4-diphenoquinone in the presence of hydrogen peroxide (H2O2) based on mechanism of Fenton-like reaction. The number of hydrophobic sites in the the HNFs and aforementioned factors above may play roles in denaturing bacterial cell membrane and lead to eventual cell death.