In-vivo biomagnetic characterisation of the American cockroach

Ling-Jun Kong , Herbert Crepaz , Agnieszka Górecka , Aleksandra Urbanek , Rainer Dumke , Tomasz Paterek


We present a quantitative method, utilising a highly sensitive quantum sensor, that extends applicability of magnetorelaxometry to biological samples at physiological temperature. The observed magnetic fields allow for non-invasive determination of physical properties of magnetic materials and their surrounding environment inside the specimen. The method is applied to American cockroaches and reveals magnetic deposits with strikingly different behaviour in alive and dead insects. We discuss consequences of this finding to cockroach magneto-reception. To our knowledge, this work represents the first characterisation of the magnetisation dynamics in live insects and helps to connect results from behavioural experiments on insects in magnetic fields with characterisation of magnetic materials in their corpses.
Author Ling-Jun Kong
Ling-Jun Kong,,
, Herbert Crepaz
Herbert Crepaz,,
, Agnieszka Górecka
Agnieszka Górecka,,
, Aleksandra Urbanek (FB/DIZP)
Aleksandra Urbanek,,
- Department of Invertebrate Zoology and Parasitology
, Rainer Dumke
Rainer Dumke,,
, Tomasz Paterek
Tomasz Paterek,,
Journal seriesScientific Reports, ISSN 2045-2322, (A 40 pkt)
Issue year2018
Publication size in sheets0.50
Article number5140
ASJC Classification1000 Multidisciplinary
Languageen angielski
LicenseJournal (articles only); published final; Uznanie Autorstwa (CC-BY); with publication
Score (nominal)40
Score sourcejournalList
ScoreMinisterial score = 40.0, 10-06-2020, ArticleFromJournal
Publication indicators WoS Citations = 3.000; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.401; WoS Impact Factor: 2018 = 4.011 (2) - 2018=4.525 (5)
Citation count*5 (2020-06-23)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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