Delong Instruments

Montréal,  QC 
Canada
https://delongamerica.com

Delong Instruments manufactures the LVEM low voltage electron microscope series. The LVEM 25E delivers five imaging modes in one compact system: TEM, STEM, SEM, EDS, and electron diffraction, with no dedicated facility or special infrastructure required. For gene therapy applications, the LVEM 25E enables rapid AAV vector characterization including full/empty capsid discrimination and particle morphology assessment at throughput rates suited to QC and lot release workflows.


 Products

  • LVEM 25E Compact Electron Microscope

    The LVEM25E is an ideal platform for AAV potency assays because it combines high-resolution imaging with flexible operational modes in a compact, easy-to-use system. Its field emission source delivers consistent high contrast and resolution down to 1.0 nm, enabling reliable visualization and quantification of viral particles and capsid morphology.

    The ability to switch rapidly between low magnification (optical and low-mag EM) and high magnification TEM/STEM means AAV samples can be screened, assessed, and analyzed all within a single workflow, reducing turnaround time and sample handling. Motorized apertures and preset alignments streamline setup, improving reproducibility across runs — a key requirement for potency and quality assays. 

    Finally, the LVEM25E’s oil-free vacuum system and minimal routine maintenance make it well suited to high-throughput potency testing environments where uptime, reliability, and data consistency are paramount.

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