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Personnal Biodosimeter

Personnal Biodosimeter : Advanced Nanoparticlues sampling ON-THE-GO

Published on 26 August 2019

Advanced Nanoparticles sampling ON-THE-GO 

   What is  Personal biodosimeter?  

Airborne biological agents cause various infections, and allergies, as well as create environment challenges and meteorological phenomena. To help combat these problems, Leti has introduced a portable, silent, highly accurate and autonomous bioaerosol collector with enhanced airborne pathogen sampling, including bacteria or submicron viruses - a sensitivity lacking in existing biodosimeters. Particles are collected on a dry surface and then concentrated in a small liquid medium. An analysis can be performed leveraging a variety of techniques, including but not limited to: culture, PCR, immunoassays, mass spectrometry, and Raman spectroscopy. 


  • Air quality:
    - Food industry
    - Pharmaceutical and cosmetic industries
    - Public buildings such as hospitals and clinics

  • Worker protection: prevention of nanoparticles exposure 

   What's new?

To develop a highly precise biodosimeter, Leti finely tuned the technology and added a new approach:

  • Low flow rate: to be representative of human exposure, the nominal flowrate of the collector is similar to normal human breathing: 5 to 10 liters per minute (LPM). This approach helps get a more compact, portable and silent device, eliminating the need for heavy and noisy pumping systems 
  • Highly performance and accurancy: up to 98% accurancy for all particles from 10nm to a few microns at 5 LPM 
  • Cell culture possible: keeps viability of some pathogens 
  • Silent, no mobile parts
  • System fully compatible with sterilization by hydrogen peroxide (other sterilization techniques can be further tested)
  • Portable and standalone (battery powered

 What's next?

The technology has been transferred to Bertin Technologies and will be available on the market late 2018. Bertin Technologies already markets the Coriolis® product line, offering a wide range of biocollection air samplers. Leti technology will complement Bertin Technologies product range with an ultraportable device capable of collecting a wide range of samples from nanoparticles to microorganisms, and featuring enhanced accuracy


• 2 patents
• French high committee for civil defense Award (Dec. 2013)

  •    FLYER