Effect of GNP functionalisation and multiple N-methylation of β-amyloid residue (32-37) on Gram-positive bacterium

Nanjundaswamy Marishetty Hemmaragala, Heidi Abrahamse, Blassan P. George

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

In the previous report, the authors showed the gold nanoparticle (GNP) functionalised multiple N-methylated fragments of the residue (32-37) of beta (β)-amyloid protein (1-42), CGGIGLMVG and CGGGGGIGLMVG toward disruption of β-amyloid (1-42), the predominant component of senile plaques. Herein the in vitro antimicrobial activities of both normal and multiple N-methylated sequences of CGGIGLMVG and CGGGGGIGLMVG were screened and it was found that all the eight sequences including four (non-functionalised with GNP) to possess activity against both Gram-positive [Staphylococcus aureus (ATCC 43300) and Enterococcus faecalis (ATCC 5129)] and Gram-negative [Escherichia coli (ATCC 35218), Pseudomonas aeruginosa (ATCC 27853) and Klebsiella pneumoniae (ATCC 700603)] bacteria. Among them, N-methylated sequences CGGIGLMVG and CGGGGGIGLMVG shown remarkable activity against Gram-positive bacteria.

Original languageEnglish
Pages (from-to)377-382
Number of pages6
JournalIET Nanobiotechnology
Volume11
Issue number4
DOIs
Publication statusPublished - 1 Jun 2017

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biotechnology
  • Electrical and Electronic Engineering

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