What is Nano-ICG?
Indocyanine Green (ICG) is a diagnostic dye traditionally used for liver function testing, cardiac output assessment, and medical imaging. In nano-form, ICG becomes a precision tool for therapeutic use:
Enhanced bioavailability
Extended circulation time
Improved targeted delivery to inflamed or tumorous tissue
Strong infrared light absorption
When paired with near-infrared (NIR) light, especially wavelengths around 800–830 nm, nano-ICG can be selectively activated deep within the body.
💡 Why Near-Infrared Light?
Near-infrared light penetrates deeper than visible light—reaching skin, blood, and internal tissues. When activated by NIR laser (typically 810 nm or 830 nm):
Nano-ICG releases heat and reactive oxygen species (ROS)
These disrupt abnormal cells or pathogens
Increase local oxygen demand
Improve circulation and immune modulation
How It Works
1. Nano-ICG Administration
- Given via IV infusion (or direct local injection)
- Accumulates in areas with high metabolic or vascular activity (tumors, inflammation, infections)
2. IV Infrared Laser Activation
- Delivered into the bloodstream through a fiber-optic catheter
- Targets capillary-rich tissues
- Can also be delivered locally into tissue if needed
3. Biological Effects
- ROS generation → disrupts pathogens and abnormal cells
- Mild thermal effect → enhances circulation and tissue repair
- Vasodilation → improves perfusion and oxygenation
Clinical Applications
| Focus Area | Nano-ICG + IR Light Role |
|---|---|
| Cancer protocols | Tumor targeting, vascular disruption |
| Chronic infections | Targeted microbial deactivation (e.g., Lyme, viruses) |
| Detox pathways | Stimulates lymphatic and microvascular clearance |
| Immune modulation | ROS signaling, inflammation reduction |
| Mitochondrial health | NIR enhances cellular energy production |
Key Advantages
- Precision targeting: Selective accumulation in high-metabolism zones
- Minimal collateral damage: Spares surrounding healthy tissue
- Prolonged therapeutic effect: Extended bioactivity through nano-formulation
- Dual-activation potential: Works systemically or via localized delivery