Governing Equations
IVT (In Vitro Transcription) Yield:
Yield = Template × NTP_efficiency × Polymerase_activity × Time
Typical: 5-10 mg mRNA / mL reaction
Microfluidic Mixing (Encapsulation):
Re ∝ Flow_rate · Channel_diameter / Viscosity
Turbulent mixing: Re > 2000 → better encapsulation
Encapsulation Efficiency (EE):
EE = (Total_mRNA - Free_mRNA) / Total_mRNA × 100%
Target: > 90%
DLS Particle Size:
Size ∝ 1/FRR + Lipid_composition
Target: 80-120 nm, PDI < 0.2
Potency Prediction:
Potency = EE × Integrity × Translation_efficiency
Integrity = Full_length / (Full_length + Truncated)
Capping Efficiency:
Cap0 → Cap1 (enzymatic)
Target: > 95% Cap1