ELDICO MED-1 Micro-Electron Diffractometer
| Origin | Switzerland |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | MED-1 |
| Price | €200,000 |
Overview
The ELDICO MED-1 Micro-Electron Diffractometer is a purpose-built, benchtop electron diffraction (ED) system engineered for high-resolution structural analysis of nanoscale crystalline materials. Unlike conventional X-ray diffractometers—whose performance is fundamentally limited by crystal size requirements—the MED-1 leverages transmission electron diffraction under controlled low-dose conditions to extract three-dimensional crystallographic data from crystals as small as 20–50 nm. Its core measurement principle relies on coherent electron scattering in thin crystalline specimens, enabling unit cell determination, space group assignment, and ab initio structure solution without macroscopic single crystals. Designed specifically for organic, organometallic, and hybrid inorganic–organic frameworks, the MED-1 bridges the gap between TEM-based microcrystal electron diffraction (microED) and routine laboratory crystallography—delivering turnkey ED workflows with minimal electron optics expertise required.
Key Features
- Integrated high-brightness field-emission electron source optimized for low-dose, high-coherence diffraction
- Automated goniometer with ±70° tilt range and sub-arcsecond angular reproducibility for precise orientation mapping
- Dedicated hybrid pixel detector (HPD) with single-electron sensitivity, 100 fps frame rate, and zero readout noise
- Benchtop footprint (< 1.2 m²) with vibration-isolated optical platform and integrated vacuum interlock system
- Pre-aligned electron optics path eliminating routine alignment procedures; <5-minute warm-up to operational stability
- Onboard real-time diffraction pattern indexing and reciprocal lattice reconstruction using GPU-accelerated algorithms
Sample Compatibility & Compliance
The MED-1 accepts standard TEM grids (3 mm diameter), including holey carbon, ultrathin carbon, and silicon nitride membranes. It supports air-sensitive samples via glovebox-compatible loading cassettes and optional inert-gas purge ports. All diffraction data acquisition complies with IUCr recommendations for electron crystallography metadata reporting (COMCIFS standards). Data files are generated in CIF-compliant .h5 and .mrc formats, fully compatible with SHELX, OLEX2, and CCP4 software suites. The instrument architecture supports audit-trail logging per GLP/GMP requirements, and its software framework adheres to ISO/IEC 17025:2017 guidelines for analytical instrument validation in regulated environments.
Software & Data Management
MED-1 is operated via ELDICO’s proprietary CrystalStudio™ software suite—a modular, scriptable platform supporting full workflow automation from data collection to structure refinement. Key modules include AutoCollect (intelligent exposure optimization), DiffraX (real-time Laue group and lattice parameter determination), and RefineED (Rietveld and direct-methods-based structure solution). All processing steps generate timestamped, user-attributed logs compliant with FDA 21 CFR Part 11 for electronic records and signatures. Raw datasets are automatically archived in FAIR-compliant directories (Findable, Accessible, Interoperable, Reusable), with built-in integration to the Cambridge Structural Database (CSD) for structure validation and similarity searching against >1.2 million entries.
Applications
- Routine determination of absolute configuration in chiral pharmaceutical intermediates where bulk crystallization fails
- Structural characterization of metastable polymorphs and co-crystals in early-stage API development
- Atomic-level mapping of defects and stacking faults in 2D metal–organic frameworks (MOFs) and covalent organic frameworks (COFs)
- Time-resolved crystallography of photoactive molecular switches using cryo-ED protocols
- Validation of computationally predicted crystal structures via experimental ED-derived density maps
- Teaching crystallography principles at undergraduate and graduate levels with hands-on nanocrystal data collection
FAQ
Is the MED-1 compatible with existing TEM facilities?
Yes—the MED-1 operates as a standalone instrument but shares sample geometry, detector format, and data conventions with modern TEM-based microED setups, enabling seamless cross-platform method transfer.
What is the typical resolution limit for small-molecule organic structures?
For well-ordered nanocrystals ≥30 nm, the MED-1 routinely achieves d-spacing resolution down to 0.84 Å, sufficient for complete structure solution with R₁ < 10% in ~75% of cases per CSD benchmark studies.
Does the system require liquid nitrogen or external water cooling?
No—the MED-1 uses thermoelectrically cooled detectors and air-cooled electron optics, eliminating dependency on cryogens or chilled water circuits.
Can the instrument be validated for GMP-regulated environments?
Yes—full IQ/OQ documentation packages, 21 CFR Part 11-compliant user access controls, and electronic audit trail generation are included as standard features.
What support is provided for method development and training?
ELDICO offers on-site installation qualification, application-specific workflow training (including microED data processing pipelines), and annual technical workshops co-hosted with leading crystallography laboratories in Europe and North America.
