Ce3Light: Design, Construction, and Testing of a Light-Irradiation System for In Vitro Cell Studies

Area of Science:

• Cell Biology
• Biotechnology
• Tissue Engineering

Background:

• Reproducible in vitro photobiomodulation (PBM) studies are hindered by a lack of standardized irradiation platforms.
• Controlled light delivery is crucial for investigating PBM's effects in cell biology and tissue engineering.

Purpose of the Study:

• To design, construct, and technically validate Ce3Light, a novel modular LED-based system for controlled PBM experiments.
• To assess the system's performance in delivering stable and reproducible light conditions for in vitro cell culture.

Main Methods:

• Fabrication of Ce3Light using additive manufacturing (PA12) with interchangeable LED modules.
• Integration of illuminance and temperature monitoring systems.
• Evaluation using MRC-5 fibroblasts exposed to various wavelengths (460, 530, 660, 800 nm) and assessment of cellular responses (glutathione, dehydrogenase activity).

Main Results:

• The Ce3Light platform demonstrated stable and reproducible light delivery under standard cell culture conditions.
• Wavelength-dependent cellular responses were detected, aligning with existing literature.
• The system proved compatible with conventional CO2 incubators.

Conclusions:

• Ce3Light is a functional and validated experimental platform for in vitro photobiomodulation research.
• The system offers a versatile, reproducible, and adaptable tool for precise control of irradiation conditions.
• This development addresses the need for standardized equipment in PBM studies.