Institute of Fundamental Technological Research
Polish Academy of Sciences

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L.H.S. Jensen


Recent publications
1.  Dudkiewicz A., Tiede K., Loeschner K., Jensen L.H.S., Jensen E., Wierzbicki R., Boxall A.B.A., Molhave K., Characterization of nanomaterials in food by electron microscopy, TRAC-TRENDS IN ANALYTICAL CHEMISTRY, ISSN: 0165-9936, DOI: 10.1016/j.trac.2010.10.007, Vol.30, No.1, pp.28-43, 2011

Abstract:
Engineered nanomaterials (ENMs) are increasingly being used in the food industry. In order to assess the efficacy and the risks of these materials, it is essential to have access to methods that not only detect the nanomaterials, but also provide information on the characteristics of the materials (e.g., size and shape).

This review presents an overview of electron microscopy (EM)-based methods that have been, or have the potential to be, applied to imaging ENMs in foodstuffs. We provide an overview of approaches to sample preparation, including drying, chemical treatment, fixation and cryogenic methods. We then describe standard and non-standard EM-based approaches that are available for imaging prepared samples. Finally, we present a strategy for selecting the most appropriate method for a particular foodstuff.

Keywords:
Cryo-electron microscopy, Detection, Environmental electron microscopy, Foodstuff, Imaging, Liquid electron microscopy, Nanoparticle, Sample preparation, Scanning electron microscopy (SEM), Transmission electron microscopy (TEM)

Affiliations:
Dudkiewicz A. - other affiliation
Tiede K. - other affiliation
Loeschner K. - other affiliation
Jensen L.H.S. - other affiliation
Jensen E. - CERN (CH)
Wierzbicki R. - other affiliation
Boxall A.B.A. - other affiliation
Molhave K. - Technical University of Denmark (DK)

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