Decacationic [70]fullerene approach for efficient photokilling of infectious bacteria and cancer cells

  • L. Huang
  • , M. Wang
  • , S. K. Sharma
  • , F. F. Sperandio
  • , S. Maragani
  • , S. Naykaa
  • , J. Chang
  • , M. R. Hamblin
  • , L. Y. Chiang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

13 Citations (Scopus)

Abstract

Photodynamic inactivation of pathogenic bacteria and cancer cells by novel water-soluble decacationic fullerene monoadducts, C60[>M(C 3N6 +C3)2] and C70[> M(C3N6+C3)2], were investigated. In the presence of a high number of electron-donating iodide anions as parts of quaternary ammonium salts in the arm region, we found that C70[> M(C3N6 +C3)2] produced more highly reactive HO radical than C60[>M(C3N6 +C 3)2], in addition to singlet oxygen (1O 2). This finding offers an explanation of the preferential killing of Gram-positive and Gram-negative bacteria by C60[>M(C 3N6 +C3)2] and C70[> M(C3N6 +C3)2], respectively. The hypothesis is that 1O2 can diffuse more easily into porous cell walls of Gram-positive bacteria to reach sensitive sites, while the less permeable Gram-negative bacterial cell wall needs the more reactive HO to cause real damage.

Original languageEnglish
Title of host publicationFullerenes, Nanotubes, and Carbon Nanostructures - 221st ECS Meeting
PublisherElectrochemical Society Inc.
Pages65-73
Number of pages9
Edition20
ISBN (Electronic)9781623320362
ISBN (Print)9781623320362
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventFullerenes, Nanotubes, and Carbon Nanostructures - Symposium on Electron Transfer and Energy Applications of Fullerenes and Nanostructured Materials, Carbon Nanotubes and Nanostructures - 221st ECS Meeting - Seattle, WA, United States
Duration: 6 May 201210 May 2012

Publication series

NameECS Transactions
Number20
Volume45
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Conference

ConferenceFullerenes, Nanotubes, and Carbon Nanostructures - Symposium on Electron Transfer and Energy Applications of Fullerenes and Nanostructured Materials, Carbon Nanotubes and Nanostructures - 221st ECS Meeting
Country/TerritoryUnited States
CitySeattle, WA
Period6/05/1210/05/12

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

ASJC Scopus subject areas

  • General Engineering

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