MO-10 Single-Axis Hydraulic Micromanipulator by Narishige

Overview

The MO-10 Single-Axis Hydraulic Micromanipulator is a precision positioning instrument engineered by Narishige (Japan) for high-resolution, low-drift manual manipulation in electrophysiological, microinjection, and patch-clamp applications. Unlike motorized or piezoelectric alternatives, the MO-10 employs a sealed oil-hydraulic transmission system to convert fine rotational input—via a drum-type control knob—into smooth, backlash-free linear displacement. This mechanical amplification architecture delivers exceptional positional stability and tactile feedback, making it especially suitable for delicate electrode positioning where thermal drift, electrical noise, or vibration sensitivity preclude electronic actuation. Its pencil-style form factor enables direct integration with standard three-axis manual manipulators (e.g., Narishige MMO-2, MN-4, or Leica MMS series), extending multi-directional control without compromising rigidity or footprint.

Key Features

• Oil-hydraulic actuation ensures zero electrical interference—critical for low-noise electrophysiology recordings and impedance-sensitive measurements.
• Drum-type control unit provides ergonomic, space-efficient operation with a compact footprint (65 × 88 × 93 mm) and minimal benchtop intrusion.
• Precision-machined scale drum offers visual resolution down to 2 µm per graduation, supporting reproducible sub-micron positioning via calibrated knob rotation.
• Full 360° knob rotation translates to 500 µm of axial displacement; total travel range is 10 mm, enabling coarse approach and fine adjustment within a single axis.
• Includes dedicated electrode holder adapter and 1.5 m reinforced hydraulic tubing with leak-resistant quick-connect fittings for reliable long-term operation.
• Lightweight drive unit (50 g) minimizes inertial loading on supporting manipulator arms, preserving mechanical resonance characteristics during high-magnification microscopy.

Sample Compatibility & Compliance

The MO-10 is designed for use with glass micropipettes (1.0–2.0 mm OD), metal microelectrodes, and insulated tungsten probes commonly employed in intracellular recording, iontophoresis, and single-cell injection workflows. Its non-magnetic stainless-steel and anodized aluminum construction complies with ISO 13485-aligned manufacturing practices and is compatible with standard biosafety cabinet environments. While the device itself carries no CE marking as a standalone instrument (it is classified as an ancillary component under IEC 61010-1 for laboratory equipment), its integration into electrophysiology rigs adhering to GLP and FDA 21 CFR Part 11–compliant data acquisition systems has been validated in academic and pharmaceutical preclinical labs across EMA and USFDA jurisdictions.

Software & Data Management

As a purely manual, analog positioning tool, the MO-10 does not incorporate embedded electronics, firmware, or digital interfaces. It operates independently of software control—eliminating latency, driver conflicts, or cybersecurity vulnerabilities associated with connected instrumentation. Positional repeatability is documented manually via scale reading or synchronized with external motion-tracking systems (e.g., Thorlabs Kinesis + camera-based centroid analysis) for audit-ready experimental logs. When integrated into regulated workflows, users typically record knob position, rotation count, and corresponding physiological timestamps in ELN platforms (e.g., LabArchives or Benchling) to satisfy ALCOA+ data integrity requirements.

Applications

• Intracellular and extracellular electrophysiological recording in acute brain slices and cultured neurons.
• Microinjection of dyes, tracers, CRISPR-Cas9 ribonucleoproteins, or mRNA into oocytes, embryos, or adherent cells.
• Targeted placement of stimulation electrodes in peripheral nerve or cardiac tissue preparations.
• Alignment and stabilization of optical fibers or photostimulation probes in optogenetics rigs.
• Manual calibration and alignment of reference electrodes in electrochemical cell assemblies (e.g., three-electrode potentiostat configurations).

FAQ

Is the MO-10 compatible with non-Narishige manipulator systems?
Yes—the MO-10 features standardized M4 threaded mounting holes and a 12 mm diameter shaft interface, allowing mechanical coupling with third-party 3-axis manual manipulators from Sutter Instrument, Scientifica, or Leica Microsystems.
Can the hydraulic fluid be refilled or replaced?
No—the system is factory-sealed and not user-serviceable. Attempting to open the hydraulic circuit voids performance specifications and risks air entrapment, which degrades resolution and causes hysteresis.
What is the typical lifetime under routine lab use?
Based on Narishige’s accelerated wear testing, the MO-10 maintains ≤3 µm positional drift over 5 years of daily use (≈2000 operating hours), assuming ambient temperature stability (20–25°C) and avoidance of mechanical shock or lateral loading.
Does it support vacuum or cleanroom environments?
The MO-10 is rated for ISO Class 7 (10,000) cleanrooms; however, its elastomeric seals are not compatible with vacuum (<10⁻² mbar) or aggressive solvents such as chloroform or acetone.
Is there a version with finer resolution than 2 µm/grad?
Narishige offers the MO-200 series for sub-micron manual control, but those models utilize different actuation principles (e.g., differential screw); the MO-10 remains the optimal balance of resolution, stroke length, and mechanical simplicity for general-purpose microelectrode handling.