Depth resolved label-free multimodal optical imaging platform to study morpho-molecular composition of tissue

Area of Science:

• Biomedical Optics
• Multimodal Imaging
• Label-free tissue characterization

Background:

• Multimodal imaging platforms integrate complementary techniques for enhanced tissue information.
• Combining optical coherence tomography (OCT) with non-linear optical imaging (NLOI) offers superior tissue characterization.
• Existing methods often require invasive procedures or exogenous labels.

Purpose of the Study:

• To develop and validate a novel multimodal label-free imaging system.
• To demonstrate the colocalized acquisition of OCT and NLOI signals.
• To provide detailed morpho-molecular information of tissues non-invasively.

Main Methods:

• Integration of OCT with NLOI techniques (TPEF, SHG, CARS).
• Development of a system for simultaneous, label-free signal acquisition.
• Validation of the multimodal system using mouse skin tissue.

Main Results:

• Successful colocalized acquisition of OCT and NLOI signals was demonstrated.
• The system provided detailed structural and molecular information.
• Label-free, non-invasive imaging of tissue morphology and composition was achieved.

Conclusions:

• The developed multimodal imaging system offers a powerful tool for label-free morpho-molecular tissue analysis.
• This approach enhances tissue characterization beyond individual modalities.
• The system holds significant potential for advancing non-invasive biomedical imaging and diagnostics.