Determination of the ripening state of Emmental cheese via quartz microbalances

Preliminary study of ion mobility based electronic nose MGD-1 for discrimination of hard cheeses

“…A key search for ''electronic nose", ''artificial nose" or ''sensor arrays" in the Web of Science Ò database reveals more than 2000 papers during the last 10 years (from 1998 to 2008). Electronic noses offer a cheap, quick, and reliable alternative for determination of the quality of foods to other expensive methods such as gas chromatography-mass spectrometry, infrared spectrometry or even a sensory panel (Bargon et al, 2003). Sensory evaluation methods are generally time-consuming and labor-intensive for routine quality control applications and require panelist training, or high numbers of consumer panelists.…”

Hydrogen-Bond-Mediated Template Synthesis of Rotaxanes, Catenanes, and Knotanes

“…However, not only dipeptides and diamides bind to this macrocycle and it has indeed been utilized as sensor-active layer on quartz microbalance sensors for food control [121,122], where simple carbonyl compounds such as acrylnitril, hexanone, or hexenal are lead compounds. Simple secondary amides can also act as guests with binding constants around K=200-300 M -1 in non-com- 16 Binding constants in CDCl 3 of hexanoic diamide to differently substituted tetralactam macrocycles petitive solvents such as dichloromethane [123].…”

Tetralactam-modified gold electrodes for amperometric detection of acrylic acid

“…A similar experiment performed in CD 2 Cl 2 and mixture of CD 2 Cl 2 /CD 3 OD at a 4:1 ratio showed interaction of these compounds with Br -, Cl -, weaker with NO 3 -and AcO - [20]. Tetralactam has been used in an electronic nose sensor to create a sensitive and selective active layer on the gold surface of quartz crystal F o r P e e r R e v i e w O n l y electrodes and detect apple ester, 2-hexanal, s-limonesse and 2-heptanon [21,22]. Hydrogen bonds formation and π-π interaction were responsible for the formation of catenate and rotaxanes.…”