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Table 1 Characteristics of available eNoses

From: The smell of lung disease: a review of the current status of electronic nose technology

  Aeonose BIONOTE Cyranose 320 PEN3 SpiroNose Tor Vergata
Company The eNose company, Zutphen, the Netherlands Campus Bio-Medico University, Rome, Italy Sensigent, California, United States (previously known as: Smith Detections) Airsense Analytics GmbH, Schwerin, Germany Breathomix, Leiden, the Netherlands (previously produced by: Comon Invent) Tor Vergata University, Rome, Italy
Working Principle (i.e. sensors) Electrical sensors Gravimetric sensors Electrical sensors Electrical sensors Electrical sensors Gravimetric sensors
Sensing material MOS QCM Conducting polymer MOS MOS QCM
Array composition 1 array; 3 sensors 1 array; 7 sensors operating at 4 different temperatures 1 array; 32 different polymers 1 array; 10 different sensors 4 exhaled breath and 4 reference arrays; 7 different sensors per array 1 array; 8 sensors
Breath collection Tidal breathing straight into eNose Tidal breathing into Pneumopipe cartridge Exhalation into sample bag Exhalation into sample bag Exhalation straight into eNose Exhalation into sample bag
NA 3 min tidal breathing 5 min tidal breaths, deep inhale, exhalation 5 min tidal breathing, deep in- and exhalation 5 tidal breaths, deep inhale, breath hold, slow exhalation Deep in- and exhalation
Image source Rocco et al. 2016 [16] Tor Vergata University
  1. An overview of specifications of eNose devices used in studies reviewed in this paper. eNose prototypes are not included. BIONOTE  biosensor-based multisensorial system for mimicking nose tongue and eyes, eNose  electric nose, MOS  metal oxide semiconductor, PEN  portable electronic nose, QCM  quartz crystal microbalance. Images are used with approval of the eNose companies