Related Experiment Video
Updated: May 31, 2026
07:24
Development of an Innovative LED-based Illumination Device for In Vitro Application of Photodynamic Therapy with Rose Bengal
Published on: September 12, 2025
Technical characteristics of fractional light devices
Kevin C Smith1, G Daniel Schachter
1Niagara Falls Dermatology and Skin Care Centre Limited, 6453 Morrison Street, Suite 201, Niagara Falls, ON L2E 7H1, Canada. ksmithderm@gmail.com
Facial Plastic Surgery Clinics of North America
|July 19, 2011
Summary
Fractional light devices and lasers work by heating target tissues to induce cell death or activate repair mechanisms. These resurfacing technologies utilize ablation and coagulation for tissue remodeling.
Area of Science:
- Biomedical Engineering
- Dermatology
- Photomedicine
Background:
- Fractional light devices and lasers are used in aesthetic and medical procedures.
- Understanding their technical characteristics is crucial for optimizing treatment outcomes.
Purpose of the Study:
- To detail the technical characteristics of fractional light devices and lasers.
- To explain the biologic effects mediated by thermal interactions with target tissues.
Main Methods:
- Analysis of the mechanisms of action for fractional light devices and lasers.
- Description of how thermal effects (killing, repair, remodeling) are achieved.
Main Results:
- Fractional devices increase target tissue temperature to induce cell death or initiate repair and remodeling.
- Resurfacing devices function through ablation and/or coagulation processes.
Conclusions:
- The technical parameters of fractional light devices and lasers dictate their therapeutic effects.
- Thermal mechanisms of ablation and coagulation are key to tissue resurfacing.
Related Concept Videos
01:16Confocal Fluorescence Microscopy
Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...
01:28Partial Fractions
A partial fraction is a component of a rational expression represented as the sum of simpler fractions. When a rational function is expressed as a ratio of two polynomials, it can often be decomposed into a sum of fractions whose denominators are simpler polynomials, typically linear or irreducible quadratic factors. This process is called partial fraction decomposition, and it is used to simplify complex expressions for integration, solving equations, or analysis.Partial fraction decomposition...