Biosensors as new analytical tool for detection of Genetically Modified Organisms (GMOs) |
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| Authors: | M Minunni S Tombelli E Mariotti M Mascini M Mascini |
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| Institution: | Università degli Studi di Firenze, Dipartimento di Chimica, Via G. Capponi n. 9, Firenze, Italy e-mail: minunni@unifi.it, IT
Università degli Studi di Teramo, Facoltà di Agraria, Mosciano Stazione (TE), Italy, IT
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| Abstract: | Three different biosensors for detection of Genetically Modified Organisms (GMOs) are presented. The sensing principle is based on the affinity interaction between nucleic acids: the probe is immobilised on the sensor surface and the target analyte is free in solution. The immobilised probes are specific for most inserted sequences in GMOs: the promoter P35S and the terminator TNOS. Electrochemical methods with screen-printed electrodes, piezoelectric and optical (SPR) transduction principles were applied. |
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