Zetasizer Advance Smart Sample Assistant
| Brand | Malvern Panalytical |
|---|---|
| Origin | United Kingdom |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Origin Category | Imported Instrument |
| Model | Zetasizer Sample Assistant |
| Pricing | Available Upon Request |
Overview
The Zetasizer Advance Smart Sample Assistant is an automated, integrated sample handling module designed exclusively for the Malvern Panalytical Zetasizer Advance series of nanoparticle characterization systems. Engineered to extend the capabilities of dynamic light scattering (DLS), electrophoretic light scattering (ELS), and multi-angle dynamic light scattering (MADLS) platforms, this accessory enables unattended, high-throughput analysis while preserving the metrological integrity inherent to the Zetasizer platform. Unlike generic autosamplers, the Smart Sample Assistant is mechanically and firmware-synchronized with the Zetasizer Advance optical bench and temperature-controlled cuvette chamber—ensuring precise alignment, consistent laser path stability, and thermal equilibrium across sequential measurements. It operates on the principle of deterministic sample positioning and closed-loop fluidic control, eliminating manual intervention without compromising measurement repeatability or traceability.
Key Features
- Seamless integration with Zetasizer Advance systems via native USB 3.0 and Ethernet communication protocols—no host firmware upgrade required.
- Automated sample loading, rinsing, and aspiration using PTFE-lined peristaltic pumps and precision stepper-motor-driven XYZ stage positioning.
- Support for standard 96-well microplates and custom vial racks; accommodates disposable and reusable quartz/suprasil cuvettes (1.0 mm, 3.0 mm, and 4.0 mm path lengths).
- Intelligent wash protocol with programmable rinse volume, dwell time, and solvent selection—minimizing carryover and cross-contamination risk between samples.
- Real-time status monitoring via ZS Xplorer software interface, including plate map visualization, queue management, and error logging with timestamped audit trails.
- Onboard self-diagnostics for pump performance, valve sequencing, and liquid level detection—enabling predictive maintenance and GLP-compliant instrument qualification.
Sample Compatibility & Compliance
The Smart Sample Assistant maintains full compatibility with all sample types routinely analyzed on the Zetasizer Advance platform—including aqueous colloids, protein formulations, lipid nanoparticles (LNPs), polymeric micelles, inorganic nanomaterials, and surfactant-stabilized dispersions. It supports ISO 22412:2017 (DLS), ISO 13321:2022 (ELS), and USP / guidelines for subvisible particle assessment when paired with validated SOPs. All fluidic pathways are chemically inert (PTFE, PEEK, borosilicate glass), enabling use with organic solvents (e.g., THF, DMSO, ethanol) and aggressive buffers (pH 1–13). The system meets IEC 61000-6-3 (EMC) and IEC 61010-1 (safety) standards and is compatible with 21 CFR Part 11–enabled environments when deployed with ZS Xplorer’s electronic signature and audit trail modules.
Software & Data Management
Controlled exclusively through Malvern Panalytical’s ZS Xplorer software (v8.12 or later), the Smart Sample Assistant introduces a dedicated “Auto-Run” workflow environment. Users define method sequences—including DLS size distribution, zeta potential, MADLS multi-parameter acquisition, and concentration estimation—per well or group of wells. Each run generates FAIR-compliant data files (.dts, .csv, .xml) with embedded metadata: instrument ID, operator credentials, environmental conditions (temperature, humidity), calibration history, and raw correlation function traces. Data export supports direct integration into LIMS (e.g., LabWare, Thermo Fisher SampleManager) and statistical analysis platforms (e.g., JMP, Python pandas). Audit trails record all user actions, parameter changes, and system events with cryptographic hashing for integrity verification.
Applications
- High-throughput formulation screening of mRNA-LNPs during preclinical development.
- Stability studies tracking size and zeta potential drift across accelerated storage conditions (4°C, 25°C, 40°C).
- Batch release testing of sterile injectables under GMP Annex 1 requirements.
- Quality-by-Design (QbD) workflows supporting DOE-based excipient optimization.
- Academic core facility operations requiring walk-away operation during overnight runs.
- Regulatory submissions where reproducibility, method transferability, and instrument qualification documentation are mandatory.
FAQ
Does the Smart Sample Assistant require modification of the Zetasizer Advance optical head or electronics?
No. It connects externally via standardized mechanical interfaces and communicates natively with the host controller—no hardware retrofitting or optical recalibration is needed.
Can it be used with non-Malvern cuvettes or third-party microplates?
Yes—provided dimensional tolerances comply with ISO 7823-1 (microplate footprint) and ASTM D7854 (cuvette geometry); validation of performance is recommended prior to regulated use.
Is cleaning validation supported for GMP environments?
Yes. The system logs all rinse cycles, solvent volumes, and pressure profiles; these records may be included in cleaning validation protocols per EU GMP Annex 15.
What is the maximum number of samples per run?
Up to 96 samples per standard plate; multiple plates can be queued sequentially with inter-plate pause intervals configurable in ZS Xplorer.
Does it support temperature-controlled sample storage prior to injection?
No—the Smart Sample Assistant does not include active cooling/heating of the plate holder; ambient or pre-conditioned samples must be loaded manually before initiation.
