The Experts below are selected from a list of 11868 Experts worldwide ranked by ideXlab platform
G Sberveglieri - One of the best experts on this subject based on the ideXlab platform.
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synthesis and integration of tin oxide nanowires into an Electronic Nose
Vacuum, 2012Co-Authors: G Sberveglieri, Isabella Concina, M Falasconi, Elisabetta Comini, M Ferroni, Veronica SberveglieriAbstract:Abstract Single crystal nanostructures of semiconducting tin oxides have been fabricated and characterized as sensing materials for implementation in an Electronic Nose. The nanowires exhibit exceptional crystalline quality and a very high length-to-width ratio, resulting in enhanced sensing capability as well as long-term material stability for prolonged operation. A sensing device based on SnO2 nanowires has been fabricated and comparatively tested in an array of chemical sensor with conventional thin film sensing device. Preliminary measurements ethanol/water mixtures demonstrate that nanowire-based sensors can be favourably implemented in the Electronic Nose and that they perform comparably with the conventional thin film layers.
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Electronic Nose and alicyclobacillus spp spoilage of fruit juices an emerging diagnostic tool
Food Control, 2010Co-Authors: Emanuela Gobbi, Isabella Concina, M Falasconi, Federica Bianchi, M Musci, Monica Mattarozzi, G Mantero, G SberveglieriAbstract:Abstract The application of an Electronic Nose equipped with a Metal Oxide Semiconductor sensor array for the detection of Alicyclobacillus acidoterrestris and A. acidocaldarius artificially inoculated in peach, orange and apple fruit juices is described in this study. Overall the system was able to detect the presence of Alicyclobacillus spp. in all the tested fruit juices at 24 h from inoculation. The Electronic Nose could detect bacterial concentration as low as
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Alicyclobacillus spp.: Detection in soft drinks by Electronic Nose
Food Research International, 2010Co-Authors: Isabella Concina, M Falasconi, Emanuela Gobbi, M. Bornšek, S. Baccelliere, G SberveglieriAbstract:In this paper the skill of an Electronic Nose to early diagNose the natural contamination by Alicyclobacillus spp. in commercial flavoured drinks is presented. The instrument was able to identify contaminated products at very low bacterial loads (tens of copies/ml), with an excellent classification rate (almost 100%). The identification of Alicyclobacillus spp. by means of the Electronic Nose was not based on the analysis of the secondary metabolites, as it is done by classical analytical techniques, thus allowing a surprising capability in recognising the contaminated products at early stage of growth. This study strongly suggests the use of the Electronic Noses as screening tools in industrial quality control laboratories but at the same time it underlines some limits still present in the technology.
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early detection of microbial contamination in processed tomatoes by Electronic Nose
Food Control, 2009Co-Authors: Isabella Concina, M Falasconi, Emanuela Gobbi, Federica Bianchi, M Musci, Monica Mattarozzi, M Pardo, A Mangia, Maria Careri, G SberveglieriAbstract:Abstract Microbial contamination can easily affect processed tomato, thus determining both organoleptic adulterations and potential health risks for customers. Innovative techniques for a rapid and reliable diagNose of spoilage, such as Electronic Nose technology, are highly requested in order to guarantee food safety and to improve production. In this work canned peeled tomatoes were artificially spoiled with different kinds of microbial flora and then were analyzed by means of an Electronic Nose based on thin film metal oxide gas sensors. Preliminary analyses by dynamic-headspace gas chromatographic–mass spectrometry showed significant differences in the semi-quantitative volatile compounds profile of spoiled tomato samples just after few hours from contamination, thus suggesting to employ the Electronic Nose for an early diagNose of microbial presence. The Electronic Nose was indeed able to reveal contamination, even at early stages depending on the type of contaminant (e.g. for Saccharomyces cerevisiae and Escherichia coli), and to recognize spoiled tomato samples with good classification performances.
Erica R. Thaler - One of the best experts on this subject based on the ideXlab platform.
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The Electronic Nose in Rhinology
Rhinology and Facial Plastic Surgery, 2009Co-Authors: Erica R. Thaler, C. William HansonAbstract:■ The Electronic Nose (e-Nose) is a new technology with many potential applications in rhinology.
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In vitro discrimination of tumor cell lines with an Electronic Nose.
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 2007Co-Authors: Kristin Gendron, Erica R. Thaler, Neil G. Hockstein, Anil Vachani, C. William HansonAbstract:The Electronic Nose is a sensor of volatile molecules that is useful in the analysis of expired gases. Our hypothesis is that the Electronic Nose can distinguish between different types of upper aerodigestive tract tumor cells in vitro. Cells from both tumor and normal cell lines were suspended in saline, and a polymer composite Electronic Nose was used to evaluate the headspace gases. The data were subjected to principal components analysis, and Mahalanobis distances were calculated to demonstrate the ability of the Electronic Nose to distinguish among samples. The tumor cell lines, including adenocarcinoma, squamous cell carcinoma, and mesothelioma, were distinct from each other, and from the normal fibroblast and smooth muscle cells as seen on canonical discrimination plots. The Electronic Nose can distinguish between tumor cell lines in vitro and has the potential to be a useful screening test for cancer.
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Medical applications of Electronic Nose technology.
Expert review of medical devices, 2005Co-Authors: Erica R. Thaler, C. William HansonAbstract:Electronic Nose technology has been developed over the past 15 years in the field of chemistry as an Electronic equivalent of the biologic mechanism of smell. Since its inception, it has been well recognized that there is great potential in applying this technology to the field of medicine. This review discusses those areas of medicine in which Electronic Nose technology has been applied. For each area, this review addresses the scope of the medical problem that has been studied, how the Electronic Nose technology may help address the medical problem, and the results of such studies to date. Next generation Electronic Noses will be refined to better analyze specific disease states. This will require further evaluation of the specific volatiles to be tested. This information may then be brought to bear on refinement of the chemistry of the Electronic Nose sensors, making them more sensitive and specific for the particular disease of interest. The ultimate goal of work in this arena is to make an Electronic Nose that is portable, fast, inexpensive and, therefore, suitable for use in the examination room or at the bedside, making it facile as a diagnostic tool.
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Differentiation between cerebrospinal fluid and serum with Electronic Nose.
Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 2005Co-Authors: Anna Aronzon, C. William Hanson, Erica R. ThalerAbstract:The study investigates the ability of the Electronic Nose to differentiate between cerebrospinal fluid (CSF) and serum and to identify an unknown specimen as CSF or serum. CSF and serum specimens were heated and tested with an organic semiconductor-based CyraNose 320 Electronic Nose (Cyrons Sciences, Pasadena, CA). Data from the 32-element sensor array were subjected to principal component analysis to depict differences in odorant patterns. The Electronic Nose was able to distinguish between CSF and serum isolates with Mahalanobis distance >5. Furthermore, the Electronic Nose was able to place unknown specimens in the appropriate class of CSF or serum. The Electronic Nose is a novel method that may allow rapid, low cost, and reliable distinction between CSF and serum in a clinical setting. Because the results are available almost immediately, the Electronic Nose is a powerful tool that in the future may allow for rapid diagnosis of CSF leaks in the office setting.
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The diagnostic utility of an Electronic Nose: Rhinologic applications
Laryngoscope, 2002Co-Authors: Erica R. ThalerAbstract:OBJECTIVE/HYPOTHESIS The thesis explores the applicability of Electronic Nose technology in medical decision-making. Specifically, the studies undertaken in the thesis were designed to test the ability of the Electronic Nose to assist in diagnostic questions encountered in the field of rhinology. STUDY DESIGN Three separate studies were undertaken. All involved analysis of specimens by the Electronic Nose, obtained either in vitro or in vivo: known matched sets of cerebrospinal fluid and serum, bacterial samples from known plated specimens, and culture swabs taken from patients suspected of having rhinosinusitis who also had a matched standard bacterial culture taken from the same site. The goal of analysis was to determine whether the Electronic Nose was able to identify or categorize specimens or groups of specimens. METHODS Each specimen was tested using the organic semiconductor-based CyraNose 320 Electronic Nose. Data from the 32-element sensor array were subjected to principal-component analysis to depict differences in odorant patterns. Distinction of specimens was identified by calculation of Mahalanobis distance. RESULTS The Electronic Nose was able to distinguish serum from cerebrospinal fluid in pure isolates as well as in isolates collected on small cottonoid pledgets at amounts of 0.2 mL or greater. It was also able to distinguish between control swabs and bacterial samples as well as among bacterial samples collected in vitro. Preliminary work suggests that it may be able to distinguish between presence and absence of bacterial infection in specimens collected on nasal swabs. CONCLUSIONS The Electronic Nose is able to distinguish reliably between cerebrospinal fluid and serum sampled in small amounts, may be able to identify presence and type of bacterial pathogen in vitro, and is able to identify presence or absence of bacteria on nasal swabs. Because this information is available immediately, the Electronic Nose may be a powerful new technology for diagnostic use, not only for rhinologic purposes but in many other aspects of medicine as well.
Isabella Concina - One of the best experts on this subject based on the ideXlab platform.
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synthesis and integration of tin oxide nanowires into an Electronic Nose
Vacuum, 2012Co-Authors: G Sberveglieri, Isabella Concina, M Falasconi, Elisabetta Comini, M Ferroni, Veronica SberveglieriAbstract:Abstract Single crystal nanostructures of semiconducting tin oxides have been fabricated and characterized as sensing materials for implementation in an Electronic Nose. The nanowires exhibit exceptional crystalline quality and a very high length-to-width ratio, resulting in enhanced sensing capability as well as long-term material stability for prolonged operation. A sensing device based on SnO2 nanowires has been fabricated and comparatively tested in an array of chemical sensor with conventional thin film sensing device. Preliminary measurements ethanol/water mixtures demonstrate that nanowire-based sensors can be favourably implemented in the Electronic Nose and that they perform comparably with the conventional thin film layers.
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Electronic Nose and alicyclobacillus spp spoilage of fruit juices an emerging diagnostic tool
Food Control, 2010Co-Authors: Emanuela Gobbi, Isabella Concina, M Falasconi, Federica Bianchi, M Musci, Monica Mattarozzi, G Mantero, G SberveglieriAbstract:Abstract The application of an Electronic Nose equipped with a Metal Oxide Semiconductor sensor array for the detection of Alicyclobacillus acidoterrestris and A. acidocaldarius artificially inoculated in peach, orange and apple fruit juices is described in this study. Overall the system was able to detect the presence of Alicyclobacillus spp. in all the tested fruit juices at 24 h from inoculation. The Electronic Nose could detect bacterial concentration as low as
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Alicyclobacillus spp.: Detection in soft drinks by Electronic Nose
Food Research International, 2010Co-Authors: Isabella Concina, M Falasconi, Emanuela Gobbi, M. Bornšek, S. Baccelliere, G SberveglieriAbstract:In this paper the skill of an Electronic Nose to early diagNose the natural contamination by Alicyclobacillus spp. in commercial flavoured drinks is presented. The instrument was able to identify contaminated products at very low bacterial loads (tens of copies/ml), with an excellent classification rate (almost 100%). The identification of Alicyclobacillus spp. by means of the Electronic Nose was not based on the analysis of the secondary metabolites, as it is done by classical analytical techniques, thus allowing a surprising capability in recognising the contaminated products at early stage of growth. This study strongly suggests the use of the Electronic Noses as screening tools in industrial quality control laboratories but at the same time it underlines some limits still present in the technology.
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early detection of microbial contamination in processed tomatoes by Electronic Nose
Food Control, 2009Co-Authors: Isabella Concina, M Falasconi, Emanuela Gobbi, Federica Bianchi, M Musci, Monica Mattarozzi, M Pardo, A Mangia, Maria Careri, G SberveglieriAbstract:Abstract Microbial contamination can easily affect processed tomato, thus determining both organoleptic adulterations and potential health risks for customers. Innovative techniques for a rapid and reliable diagNose of spoilage, such as Electronic Nose technology, are highly requested in order to guarantee food safety and to improve production. In this work canned peeled tomatoes were artificially spoiled with different kinds of microbial flora and then were analyzed by means of an Electronic Nose based on thin film metal oxide gas sensors. Preliminary analyses by dynamic-headspace gas chromatographic–mass spectrometry showed significant differences in the semi-quantitative volatile compounds profile of spoiled tomato samples just after few hours from contamination, thus suggesting to employ the Electronic Nose for an early diagNose of microbial presence. The Electronic Nose was indeed able to reveal contamination, even at early stages depending on the type of contaminant (e.g. for Saccharomyces cerevisiae and Escherichia coli), and to recognize spoiled tomato samples with good classification performances.
Emanuela Gobbi - One of the best experts on this subject based on the ideXlab platform.
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Electronic Nose and alicyclobacillus spp spoilage of fruit juices an emerging diagnostic tool
Food Control, 2010Co-Authors: Emanuela Gobbi, Isabella Concina, M Falasconi, Federica Bianchi, M Musci, Monica Mattarozzi, G Mantero, G SberveglieriAbstract:Abstract The application of an Electronic Nose equipped with a Metal Oxide Semiconductor sensor array for the detection of Alicyclobacillus acidoterrestris and A. acidocaldarius artificially inoculated in peach, orange and apple fruit juices is described in this study. Overall the system was able to detect the presence of Alicyclobacillus spp. in all the tested fruit juices at 24 h from inoculation. The Electronic Nose could detect bacterial concentration as low as
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Alicyclobacillus spp.: Detection in soft drinks by Electronic Nose
Food Research International, 2010Co-Authors: Isabella Concina, M Falasconi, Emanuela Gobbi, M. Bornšek, S. Baccelliere, G SberveglieriAbstract:In this paper the skill of an Electronic Nose to early diagNose the natural contamination by Alicyclobacillus spp. in commercial flavoured drinks is presented. The instrument was able to identify contaminated products at very low bacterial loads (tens of copies/ml), with an excellent classification rate (almost 100%). The identification of Alicyclobacillus spp. by means of the Electronic Nose was not based on the analysis of the secondary metabolites, as it is done by classical analytical techniques, thus allowing a surprising capability in recognising the contaminated products at early stage of growth. This study strongly suggests the use of the Electronic Noses as screening tools in industrial quality control laboratories but at the same time it underlines some limits still present in the technology.
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early detection of microbial contamination in processed tomatoes by Electronic Nose
Food Control, 2009Co-Authors: Isabella Concina, M Falasconi, Emanuela Gobbi, Federica Bianchi, M Musci, Monica Mattarozzi, M Pardo, A Mangia, Maria Careri, G SberveglieriAbstract:Abstract Microbial contamination can easily affect processed tomato, thus determining both organoleptic adulterations and potential health risks for customers. Innovative techniques for a rapid and reliable diagNose of spoilage, such as Electronic Nose technology, are highly requested in order to guarantee food safety and to improve production. In this work canned peeled tomatoes were artificially spoiled with different kinds of microbial flora and then were analyzed by means of an Electronic Nose based on thin film metal oxide gas sensors. Preliminary analyses by dynamic-headspace gas chromatographic–mass spectrometry showed significant differences in the semi-quantitative volatile compounds profile of spoiled tomato samples just after few hours from contamination, thus suggesting to employ the Electronic Nose for an early diagNose of microbial presence. The Electronic Nose was indeed able to reveal contamination, even at early stages depending on the type of contaminant (e.g. for Saccharomyces cerevisiae and Escherichia coli), and to recognize spoiled tomato samples with good classification performances.
M Falasconi - One of the best experts on this subject based on the ideXlab platform.
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synthesis and integration of tin oxide nanowires into an Electronic Nose
Vacuum, 2012Co-Authors: G Sberveglieri, Isabella Concina, M Falasconi, Elisabetta Comini, M Ferroni, Veronica SberveglieriAbstract:Abstract Single crystal nanostructures of semiconducting tin oxides have been fabricated and characterized as sensing materials for implementation in an Electronic Nose. The nanowires exhibit exceptional crystalline quality and a very high length-to-width ratio, resulting in enhanced sensing capability as well as long-term material stability for prolonged operation. A sensing device based on SnO2 nanowires has been fabricated and comparatively tested in an array of chemical sensor with conventional thin film sensing device. Preliminary measurements ethanol/water mixtures demonstrate that nanowire-based sensors can be favourably implemented in the Electronic Nose and that they perform comparably with the conventional thin film layers.
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Electronic Nose and alicyclobacillus spp spoilage of fruit juices an emerging diagnostic tool
Food Control, 2010Co-Authors: Emanuela Gobbi, Isabella Concina, M Falasconi, Federica Bianchi, M Musci, Monica Mattarozzi, G Mantero, G SberveglieriAbstract:Abstract The application of an Electronic Nose equipped with a Metal Oxide Semiconductor sensor array for the detection of Alicyclobacillus acidoterrestris and A. acidocaldarius artificially inoculated in peach, orange and apple fruit juices is described in this study. Overall the system was able to detect the presence of Alicyclobacillus spp. in all the tested fruit juices at 24 h from inoculation. The Electronic Nose could detect bacterial concentration as low as
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Alicyclobacillus spp.: Detection in soft drinks by Electronic Nose
Food Research International, 2010Co-Authors: Isabella Concina, M Falasconi, Emanuela Gobbi, M. Bornšek, S. Baccelliere, G SberveglieriAbstract:In this paper the skill of an Electronic Nose to early diagNose the natural contamination by Alicyclobacillus spp. in commercial flavoured drinks is presented. The instrument was able to identify contaminated products at very low bacterial loads (tens of copies/ml), with an excellent classification rate (almost 100%). The identification of Alicyclobacillus spp. by means of the Electronic Nose was not based on the analysis of the secondary metabolites, as it is done by classical analytical techniques, thus allowing a surprising capability in recognising the contaminated products at early stage of growth. This study strongly suggests the use of the Electronic Noses as screening tools in industrial quality control laboratories but at the same time it underlines some limits still present in the technology.
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early detection of microbial contamination in processed tomatoes by Electronic Nose
Food Control, 2009Co-Authors: Isabella Concina, M Falasconi, Emanuela Gobbi, Federica Bianchi, M Musci, Monica Mattarozzi, M Pardo, A Mangia, Maria Careri, G SberveglieriAbstract:Abstract Microbial contamination can easily affect processed tomato, thus determining both organoleptic adulterations and potential health risks for customers. Innovative techniques for a rapid and reliable diagNose of spoilage, such as Electronic Nose technology, are highly requested in order to guarantee food safety and to improve production. In this work canned peeled tomatoes were artificially spoiled with different kinds of microbial flora and then were analyzed by means of an Electronic Nose based on thin film metal oxide gas sensors. Preliminary analyses by dynamic-headspace gas chromatographic–mass spectrometry showed significant differences in the semi-quantitative volatile compounds profile of spoiled tomato samples just after few hours from contamination, thus suggesting to employ the Electronic Nose for an early diagNose of microbial presence. The Electronic Nose was indeed able to reveal contamination, even at early stages depending on the type of contaminant (e.g. for Saccharomyces cerevisiae and Escherichia coli), and to recognize spoiled tomato samples with good classification performances.