A preliminary investigation into light-modulated replication of nanobacteria and heart disease

Andrei P. Sommer, Uri Oron, Anne Marié Pretorius, David S. McKay, Neva Ciftcioglu, Adam R. Mester, E. Olavi Kajander, Harry T. Whelan

Research output: Contribution to journalArticle

24 Citations (Scopus)


Objective: The purpose of this preliminary study is to evaluate the effect of various wavelengths of light on nanobacteria (NB). Background Data: NB and mitochondria use light for biological processes. NB have been described as multifunctional primordial nanovesicles with the potential to utilize solar energy for replication. NB produce slime, a process common to living bacteria. Slime release is an evolutionary important stress-dependent phenomenon increasing the survival chance of individual bacteria in a colony. In the cardiovascular system, stress-induced bacterial colony formation may lead to a deposition of plaque. Methods: Cultured NB were irradiated with NASA-LEDs at different wavelengths of light: 670, 728 and 880 nm. Light intensities were about 500k Wm-2, and energy density was 1 × 104 J m-2. Results: Monochromatic light clearly affected replication of NB. Maximum replication was achieved at 670 nm. Conclusions: The results indicate that suitable wavelengths of light could be instrumental in elevating the vitality level of NB, preventing the production of NB-mediated slime, and simultaneously increasing the vitality level of mitochondria. The finding could stimulate the design of cooperative therapy concepts that could reduce death caused by myocardial infarcts.

Original languageEnglish
Pages (from-to)231-235
Number of pages5
JournalJournal of Clinical Laser Medicine and Surgery
Issue number4
Publication statusPublished - Aug 1 2003


ASJC Scopus subject areas

  • Surgery
  • Biomedical Engineering

Cite this

Sommer, A. P., Oron, U., Pretorius, A. M., McKay, D. S., Ciftcioglu, N., Mester, A. R., Kajander, E. O., & Whelan, H. T. (2003). A preliminary investigation into light-modulated replication of nanobacteria and heart disease. Journal of Clinical Laser Medicine and Surgery, 21(4), 231-235.