HealthAugust 16, 2026
photodynamic
foh-toh-dy-NAM-ik
Definition
Relating to a therapeutic method that uses light-sensitive compounds that, when activated by light of a specific wavelength, produce a reaction to destroy target cells or pathogens.
Etymology
Derived from the Greek 'phos' (light) and 'dynamis' (power or force), the term was coined in the late 20th century to describe biological processes or medical treatments driven by the activation of substances through light exposure.
In the news
The article uses this term to describe a standard clinical light therapy for gum disease, which is compared unfavorably to the new targeted approach because it kills both harmful and beneficial bacteria.
New Treatment Targets Gum Disease Without Killing Good Bacteria
Read the full article ↗SciTechDaily