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Updated: Oct 25, 2026

Production of siRNA-Loaded Lipid Nanoparticles using a Microfluidic Device
Published on: March 22, 2022
Autonomous Lipid Nanoparticle Engineering
Peter Sagmeister1, Aniket Udepurkar1, Cedric Devos1
1Department of Chemical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts02139, United States.
Abstract:
Lipid nanoparticles (LNPs) are the leading vehicles for encapsulating and delivering nucleic acid therapeutics. Yet, their process development remains labor-intensive and empirical, constrained by coupled quality attributes and limited mechanistic insight. We present an autonomous, pilot-scale platform for accelerating LNP process development by identifying critical process parameters (CPPs) that produce LNPs with target size attributes. The platform combines a size-control production method with inline dynamic light scattering (DLS) for real-time feedback, enabling closed-loop experimentation and accelerated optimization. With built-in automated design of experiments, dynamic parameter sweeps, and Bayesian optimization, the platform enables rapid, data-rich exploration of complex design spaces. We demonstrate that the platform rapidly maps complex process-property relationships for loaded LNPs, while minimizing experimental burden. The resulting data-rich outputs were used to develop a predictive model that quantitatively links process parameters to particle quality attributes. Operable in fully autonomous mode, the platform provides a scalable and flexible framework for rational LNP manufacturing and accelerates the broader development of nucleic acid therapeutics.

