Biomodulation of light on cells in laser surgery

Timon Cheng Yi Liu, Yan Li, Rui Duan, Xiong Wei Cai

Research output: Contribution to journalConference articlepeer-review

8 Scopus citations

Abstract

In laser surgery, it has been observed pulsed 532-nm laser can avoiding postoperative purpura, but pulsed 585-nm, 595-nm or 600-nm lasers nonetheless cause purpura when they were used to treat pot-wine stains; the XeCl excimer laser (308 nm) can safely and effectively clears psoriasis; both XeCl excimer laser and Ho:YAG laser were used in coronary interventions, but only former was approved by the FDA; open channels after ultraviolet (UV) laser treatment and closed channels with infrared (IR) lasers for transmyocardial laser revascularization; and so on. In this paper, the biological information model of low intensity laser (BIML) is extended to include UVA biomodulation and is used to understand these phenomena. Although the central intensity of the laser beam is so intense that it destroys the tissue, the edge intensity is so low that it can induce biomodulation. Our investigation showed that biomodulation of light on cells might play an important role in the long-term effects of laser surgery.

Original languageEnglish (US)
Pages (from-to)123-126
Number of pages4
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume4536
DOIs
StatePublished - 2002
Externally publishedYes
EventInternational Workshop on Photonic and Imaging in Biology and Medicine - Wuhan, China
Duration: Oct 8 2001Oct 10 2001

Keywords

  • Cell
  • Laser biostimulation
  • Laser surgery
  • UV

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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