OBJECTIVES To test the hypothesis that fecal volatile organic compounds (VOCs) analysis by electronic nose (eNose) allows for early detection of necrotizing enterocolitis (NEC). STUDY DESIGN In 3 neonatal intensive care units, fecal samples of infants born at gestational age ≤ 30 weeks were collected daily, up to the 28th day of life. Included infants were allocated in 3 subgroups: NEC, sepsi...

This paper assesses a custom single-type electronic nose (eNose) applied to differentiate the complex aromas generated by caffeinated and decaffeinated versions of one encapsulated espresso coffee mixture type. The eNose used is composed 16 (identical) metal–oxide semiconductor (MOX) gas sensors based on microelectromechanical system (MEMS). proposal takes advantage small but inherent sensing v...

BACKGROUND Asthma is a chronic inflammatory airway disease, associated with episodes of exacerbations. Therapy with inhaled corticosteroids (ICS) targets airway inflammation, which aims to maintain and restore asthma control. Clinical features are only modestly associated with airways inflammation. Therefore, we hypothesized that exhaled volatile metabolites identify longitudinal changes betwee...

A primary goal for artificial nose (eNose) technology is to report perceptual qualities of novel odors. Currently, however, eNoses primarily detect and discriminate between odorants they previously "learned". We tuned an eNose to human odor pleasantness estimates. We then used the eNose to predict the pleasantness of novel odorants, and tested these predictions in naïve subjects who had not par...

Electronic nose (array of chemical sensors) are widely used in food industry and pollution control. Also it could be used to locate or detect the direction of the source of emission odors. Usually this task is performed by electronic nose (ENose) cooperated with mobile vehicles, but when a source is instantaneous or surrounding is hard for vehicles to reach, problem occurs. Thus a method for st...

New 'omics'-technologies have the potential to better define airway disease in terms of pathophysiological and clinical phenotyping. The integration of electronic nose (eNose) technology with existing diagnostic tests, such as routine spirometry, can bring this technology to 'point-of-care'. We aimed to determine and optimize the technical performance and diagnostic accuracy of exhaled breath a...

Method VOCs were measured in thirty-three asthmatic children (age: 11.8 yrs, SD 2.3 yrs) who participated in the PACMAN2 study. All children were current users of ICS. Current asthma control was assessed using the Asthma Control Questionnaire. Long-term asthma control was based on reported symptoms in the four seasons preceding baseline and follow-up visit. A single vital capacity volume of exh...

Honey is an essential product produced by both honey bees and stingless bees. It one of the most powerful natural products used for wound healing also known as sweetener that widely available across entire world. One problems required to sustain bee measuring quantifying quality. methods detect via odor signature. However, difficulties in identifying odour profile feature are common using human...

A lab-made electronic nose (Enose) with vacuum sampling and a sensor array, comprising nine metal oxide semiconductor Figaro gas sensors, was tested for the quantitative analysis of vapor–liquid equilibrium, described by Henry’s law, aqueous solutions organic compounds: three alcohols (i.e., methanol, ethanol, propanol) or chemical compounds different functional groups acetaldehyde, ethyl aceta...