Bactericidal properties of tryptophan and pyrrole solutions irradiated by oxygen radicals
Abstract
Abstract In biological applications of plasmas, strong bactericidal effects with low residual toxicity are expected from bactericidal species derived from tryptophan. Lifetimes and bactericidal rates of both tryptophan-derived and pyrrole-derived bactericidal species are evaluated as a function of the solution temperature. The tryptophan-derived and pyrrole-derived bactericidal species were similar, and the results revealed that the pyrrole ring significantly contributes to the production of bactericidal species in oxygen-radical irradiated tryptophan solutions. Their bactericidal lifetimes to species are different, estimating activation energies to be approximately 39 kJ mol −1 for the tryptophan solution and 68 kJ mol −1 for the pyrrole solution.
Fields of Study & Subjects
Plasma Applications and Diagnostics
Photodynamic Therapy Research Studies
Antimicrobial agents and applications
Publication details
- Journal / source
- Japanese Journal of Applied Physics
- Volume
- 65
- Issue
- 5
- Pages
- 056001–056001
- Publication date
- 12 February 2026
- Language
- EN