Towards SERS based applications in food analytics : Lipophilic sensor layers for the detection of Sudan III in food matrices

Title data

Jahn, Martin ; Patze, Sophie ; Bocklitz, Thomas ; Weber, Karina ; Cialla-May, Dana ; Popp, Jürgen:
Towards SERS based applications in food analytics : Lipophilic sensor layers for the detection of Sudan III in food matrices.
In: Analytica Chimica Acta. Vol. 860 (2015) . - pp. 43-50.
ISSN 1873-4324
DOI: https://doi.org/10.1016/j.aca.2015.01.005

Official URL:

Abstract in another language

Food safety is an topic of great importance for our society which places high demands on analytical methods. Surface enhanced Raman spectroscopy (SERS) meets the requirements for a rapid, sensitive and specific detection technique. The fact that metallic colloids, one of the most often used {SERS} substrates, are usually prepared in aqueous solution makes the detection of water-insoluble substances challenging. In this paper we present a {SERS} based approach for the detection of water-insoluble molecules by applying a hydrophobic surface modification onto the surface of enzymatic generated silver nanoparticles. By this approach the detection of the illegal water-insoluble food dyes, such as Sudan {III} in presence of riboflavin, as water-soluble competitor, is possible. Moreover, we demonstrate the usability of this kind of {SERS} substrates for determination of Sudan {III} out of spiked paprika extracts.

Further data

Item Type:	Article in a journal
Refereed:	Yes
Keywords:	Surface enhanced Raman spectroscopy; Sensor layers; Food safety; Sudan dye detection
Institutions of the University:	Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Computer Science > Lehrstuhl Künstliche Intelligenz in der Mikroskopie und Spektroskopie > Lehrstuhl Künstliche Intelligenz in der Mikroskopie und Spektroskopie - Univ.-Prof. Dr. Thomas Wilhelm Bocklitz
Result of work at the UBT:	No
DDC Subjects:	500 Science > 530 Physics
Date Deposited:	16 May 2023 12:37
Last Modified:	16 May 2023 12:37
URI:	https://eref.uni-bayreuth.de/id/eprint/76328