Ultraviolet germicidal irradiation and its effects on elemental distributions in mouse embryonic fibroblast cells in x-ray fluorescence microanalysis
- Northwestern Univ., Evanston, IL (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Northwestern Univ., Evanston, IL (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
- Univ. of California, Irvine, CA (United States)
Rapidly-frozen hydrated (cryopreserved) specimens combined with cryo-scanning x-ray fluorescence microscopy provide an ideal approach for investigating elemental distributions in biological cells and tissues. However, because cryopreservation does not deactivate potentially infectious agents associated with Risk Group 2 biological materials, one must be concerned with contamination of expensive and complicated cryogenic x-ray microscopes when working with such materials. We employed ultraviolet germicidal irradiation to decontaminate previously cryopreserved cells under liquid nitrogen, and then investigated its effects on elemental distributions under both frozen hydrated and freeze dried states with x-ray fluorescence microscopy. We show that the contents and distributions of most biologically important elements remain nearly unchanged when compared with non-ultraviolet-irradiated counterparts, even after multiple cycles of ultraviolet germicidal irradiation and cryogenic x-ray imaging. This provides a potential pathway for rendering Risk Group 2 biological materials safe for handling in multiuser cryogenic x-ray microscopes without affecting the fidelity of the results.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); National Institutes of Health (NIH) - National Institute of General Medical Sciences; National Institutes of Health (NIH)
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1344551
- Alternate ID(s):
- OSTI ID: 1194125; OSTI ID: 1396030
- Journal Information:
- PLoS ONE, Vol. 10, Issue 2; ISSN 1932-6203
- Publisher:
- Public Library of ScienceCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
X-ray Microscopy
|
book | January 2019 |
X-ray microscopy
|
journal | July 1965 |
Preserving elemental content in adherent mammalian cells for analysis by synchrotron-based x-ray fluorescence microscopy: PRESERVING ELEMENTAL CONTENT
|
journal | August 2016 |
Visualizing Metal Content and Intracellular Distribution in Primary Hippocampal Neurons with Synchrotron X-Ray Fluorescence
|
journal | July 2016 |
Similar Records
Simultaneous cryo X-ray ptychographic and fluorescence microscopy of green algae
Simultaneous cryo X-ray ptychographic and fluorescence microscopy of green algae
Related Subjects
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
liquid nitrogen
fluorescence microscopy
fluorescence imaging
ultraviolet radiation
X-ray radiography
X-ray microscopy
dehydration (medicine)
fibroblasts
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
60 APPLIED LIFE SCIENCES