Mathematical Model that Describes the Transition from Thermal Photochemical Damage in Retinal Pigment Epithelial Cell Culture

Abstract

We propose a rate process model for describing photochemical damage to retinal cells by short wavelength laser exposures. The rate equation for photochemical damage contains a positive rate that is temperature independent,and a negative (quenching) rate that is temperature dependent. Using the traditional Arrhenius integral to describe thermal damage, we derive damage threshold doses for both thermal and photochemical mechanisms, and show that the model accounts for the sharp transition from thermal to photochemical damage thresholds that have recently been observed in an in-vitro retinal model.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2011
Accession Number
ADA537270

Entities

People

  • Clifton D. Clark Iii
  • Michael L. Denton
  • Robert J. Thomas

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Biological Pigments
  • Cell Physiological Processes
  • Cells
  • Chemical Reactions
  • Coefficients
  • Collisions
  • Critical Temperature
  • Culture Techniques
  • Energy
  • Equations
  • Flux Density
  • Mathematical Models
  • Models
  • Quenching
  • Transitions

Readers

  • Molecular Photonics/Laser Physics
  • Organic Chemistry
  • Toxicology/Environmental Toxicology

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers