| Title: | Sensors' array of aspiration ion mobility spectrometer as a tool for bacteria discrimination |
| Author(s): | Bocos-Bintintan V; Thomas CLP; Ratiu IA; |
| Address: | "Faculty of Environmental Science and Engineering, Babes-Bolyai University, 30 Fantanele, RO-400294, Cluj-Napoca, Romania. Department of Chemistry, School of Science, Loughborough University, Epinal Way, Loughborough, LE11 3TU, United Kingdom. Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, 11 Arany Janos, RO-400028, Cluj-Napoca, Romania; Department of Environmental Chemistry and Bioanalytics, Faculty of Chemistry, Interdisciplinary Centre of Modern Technologies, Nicolaus Copernicus University, 7 Gagarina Str., 87-100, Torun, Poland. Electronic address: andreea_ratiu84@yahoo.com" |
| DOI: | 10.1016/j.talanta.2019.120233 |
| ISSN/ISBN: | 1873-3573 (Electronic) 0039-9140 (Linking) |
| Abstract: | "The possibility of achieving bacterial discrimination using a miniaturized aspiration ion mobility spectrometer model ChemPro-100i (Environics Oy) has been tested by interrogating the headspace air samples above in vitro bacterial cultures of three species - Escherichia coli, Bacillus subtilis and Staphylococcus aureus, respectively. The ChemPro-100i highly integrated seven sensor array, composed of one a-IMS cell, three MOS (metal oxide sensors), one FET (field effect transistor) sensor and two SC (semiconductor) sensors, provided enough analytical information to discriminate between the three bacterial species. Statistical data processing using either principal component analysis (PCA) or partial least squares discriminant analysis (PLS-DA) was accomplished. We concluded that although the data from the aspiration-type ion mobility sensor, with its 16 ion detectors, is absolutely sufficient to discriminate between various bacteria using their volatile compounds' chemical profile, the other six sensors deliver additional, valuable information" |
| Keywords: | Bacillus subtilis/*isolation & purification Bacterial Typing Techniques/*methods Discriminant Analysis Escherichia coli/*isolation & purification Ion Mobility Spectrometry/*methods Least-Squares Analysis Principal Component Analysis Staphylococcus aureus/; |
| Notes: | "MedlineBocos-Bintintan, Victor Thomas, C L Paul Ratiu, Ileana Andreea eng Netherlands 2019/09/14 Talanta. 2020 Jan 1; 206:120233. doi: 10.1016/j.talanta.2019.120233. Epub 2019 Aug 6" |
