Surface enhanced Raman scattering on Tardigrada - towards monitoring and imaging molecular structures in live cryptobiotic organisms

Harald Kneipp, Nadja Møbjerg, Aslak Jørgensen, Henrik Bohr, Claus Hélix-Nielsen, Janina Kneipp, Katrin Kneipp

5 Citations (Scopus)

Abstract

Tardigrades are microscopic metazoans which are able to survive extreme physical and chemical conditions by entering a stress tolerant state called cryptobiosis. At present, the molecular mechanisms behind cryptobiosis are still poorly understood. We show that surface enhanced Raman scattering supported by plasmonic gold nanoparticles can measure molecular constituents and their local distribution in live tardigrades. Surface enhanced Raman signatures allow to differentiate between two species and indicate molecular structural differences between tardigrades in water and in a dry state. This opens new avenues for exploring cryptobiosis by studying molecular changes in live cryptobiotic organisms.

Original languageEnglish
JournalJournal of Biophotonics
Volume6
Issue number10
Pages (from-to)759-764
Number of pages6
ISSN1864-0648
DOIs
Publication statusPublished - Oct 2013

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