Sanotac NX-100 LNP Nanoparticle Production System for circRNA and mRNA Vaccine Formulation

Overview

The Sanotac NX-100 LNP Nanoparticle Production System is an engineered fluidic platform designed for the reproducible, scalable synthesis of lipid nanoparticles (LNPs) encapsulating nucleic acid therapeutics—including circular RNA (circRNA), messenger RNA (mRNA), small interfering RNA (siRNA), antisense oligonucleotides (ASOs), and RNA aptamers. It operates on the principle of hydrodynamic impingement mixing: two precisely metered streams—lipid-in-ethanol solution and aqueous nucleic acid formulation—are accelerated under high pressure and directed toward each other within a geometrically optimized jet mixer chamber. This controlled turbulent collision induces rapid solvent displacement, spontaneous liposome self-assembly, and uniform entrapment of the nucleic acid payload. The resulting particle size distribution (typically 70–120 nm), polydispersity index (PDI 90% for standard mRNA formulations) are governed by laminar flow stability, interfacial energy dynamics, and residence time in the mixing zone—parameters directly tunable via flow rate ratio, total throughput, and temperature control.

Key Features

• Modular dual-pump architecture: Two high-precision 316L stainless steel syringe pumps deliver lipid and nucleic acid streams independently, with flow accuracy ≤±0.5% and repeatability ≤0.1% across 0.1–100 mL/min range.
• Dual-stage mixing configuration: Primary impingement jet mixer (rated to 20 MPa) enables high-throughput LNP formation; secondary pre-dilution and quenching mixers ensure controlled post-mixing stabilization and pH adjustment.
• Real-time process monitoring: Integrated pressure transducers and four calibrated flow meters provide continuous feedback on system integrity, enabling immediate detection of clogging, pump drift, or viscosity-induced deviations.
• Scalable design philosophy: Supports both parallel unit expansion (N× NX-100 modules operating synchronously) and single-unit scale-up (via compatible N-series pumps up to 3000 mL/min), maintaining identical mixing hydrodynamics across scales.
• Robust materials compatibility: Fluidic path constructed from 316L stainless steel, PTFE, PEEK, ruby sapphire, and ceramic components—resistant to ethanol, isopropanol, acetic acid, and low-pH aqueous buffers commonly used in LNP formulation.
• Regulatory-ready control infrastructure: Equipped with three industrial-grade communication interfaces (RS485, RS232, Ethernet) supporting Modbus RTU, Profibus DP, and Profinet protocols for seamless integration into SCADA, DCS, or PLC environments.

Sample Compatibility & Compliance

The NX-100 accommodates a broad spectrum of nucleic acid payloads—including linear and circular RNA species—with demonstrated performance in encapsulating circRNA constructs ≥1.5 kb and modified mRNA bearing pseudouridine or N1-methylpseudouridine. It supports lipid compositions compliant with clinical-grade LNP formulations (e.g., ALC-0315, DSPC, cholesterol, DMG-PEG2000). All wetted materials meet USP Class VI biocompatibility standards. The system’s operational envelope aligns with ICH Q5A(R2) guidelines for viral safety assessment of nucleic acid products and supports adherence to ISO 13485 quality management requirements for medical device manufacturing. When operated with NanoFlu software, full audit trails, role-based access control, electronic signatures, and 21 CFR Part 11–compliant electronic records are enforced—enabling use in GLP and GMP-regulated development workflows.

Software & Data Management

NanoFlu Fluidic Workstation is the validated control and data acquisition software suite for the NX-100. It provides deterministic, programmable control over all fluidic modules—including ramped, gradient, and user-defined flow profiles—and synchronizes pressure, flow, and timing data at 10 Hz resolution. Real-time visualization includes dynamic pressure–flow overlay plots, progress bar indicators, and deviation alerts triggered by preset thresholds. All experimental parameters and raw sensor outputs are timestamped, encrypted, and stored in vendor-neutral CSV/JSON formats. Method templates can be version-controlled, exported, and reloaded across instruments. Calibration routines support multi-point flow verification under application-specific solvent conditions. External instrumentation—including inline dynamic light scattering (DLS) units, UV-Vis spectrophotometers, and conductivity sensors—can be synchronized via TTL triggers or Modbus TCP handshaking.

Applications

• Preclinical formulation development of circRNA vaccines targeting persistent viral antigens or tumor neoantigens.
• Process optimization studies for mRNA-LNP therapeutics requiring precise control over particle size, PDI, and encapsulation efficiency.
• Comparative evaluation of ionizable lipid candidates under identical hydrodynamic mixing conditions.
• GMP-compliant batch production of reference standards for analytical method validation (e.g., SEC-MALS, cryo-EM, RNase protection assays).
• Integration into automated end-to-end platforms for high-throughput screening of LNP–nucleic acid combinations.
• Technology transfer between R&D, pilot-scale, and commercial manufacturing sites using identical mixing physics and control logic.

FAQ

What nucleic acid types are compatible with the NX-100 system?
The system has been validated for circRNA, mRNA, siRNA, ASO, saRNA, and DNA plasmids—provided solubility, viscosity, and buffer compatibility fall within defined operational limits (aqueous phase pH 4.0–7.5; organic phase ethanol/isopropanol content ≥60% v/v).
Can the NX-100 be integrated into an existing automation framework?
Yes—standard RS485/Modbus RTU and Ethernet/Modbus TCP interfaces allow direct integration with Siemens S7 PLCs, Rockwell ControlLogix systems, or custom LabVIEW-based supervisory controllers.
Is particle size tunable during operation?
Yes—size distribution is modulated in real time via flow rate ratio (lipid:aqueous), total flow rate, mixer geometry selection (jet vs. microfluidic chip), and post-mixing dilution kinetics—all programmable through NanoFlu.
Does the system support continuous processing?
While primarily configured for batch-mode preparation, the NX-100 supports semi-continuous operation via external fraction collectors and inline quenching loops; fully continuous configurations require auxiliary peristaltic feed and tangential flow filtration modules.
What regulatory documentation is provided?
Sanotac supplies IQ/OQ documentation templates, material compliance certificates (316L, PTFE, PEEK), pump calibration reports, and NanoFlu 21 CFR Part 11 validation packages—including risk assessments, trace matrices, and test scripts—upon request.