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Correlative imaging to resolve molecular structures in individual cells: Substrate validation study for super-resolution infrared microspectroscopy

Paulus, Agnes LU ; Yogarasa, Sahana ; Kansiz, Mustafa ; Martinsson, Isak LU ; Gouras, Gunnar K. LU orcid ; Deierborg, Tomas LU ; Engdahl, Anders LU ; Borondics, Ferenc and Klementieva, Oxana LU orcid (2022) In Nanomedicine: Nanotechnology, Biology and Medicine 43. p.102563-102563
Abstract
Light microscopy has been a favorite tool of biological studies for almost a century, recently producing detailed images with exquisite molecular specificity achieving spatial resolution at nanoscale. However, light microscopy is insufficient to provide chemical information as a standalone technique. An increasing amount of evidence demonstrates that optical photothermal infrared microspectroscopy (O-PTIR) is a valuable imaging tool that can extract chemical information to locate molecular structures at submicron resolution. To further investigate the applicability of sub-micron infrared microspectroscopy for biomedical applications, we analyzed the contribution of substrate chemistry to the infrared spectra acquired from individual... (More)
Light microscopy has been a favorite tool of biological studies for almost a century, recently producing detailed images with exquisite molecular specificity achieving spatial resolution at nanoscale. However, light microscopy is insufficient to provide chemical information as a standalone technique. An increasing amount of evidence demonstrates that optical photothermal infrared microspectroscopy (O-PTIR) is a valuable imaging tool that can extract chemical information to locate molecular structures at submicron resolution. To further investigate the applicability of sub-micron infrared microspectroscopy for biomedical applications, we analyzed the contribution of substrate chemistry to the infrared spectra acquired from individual neurons grown on various imaging substrates. To provide an example of correlative immunofluorescence/O-PTIR imaging, we used immunofluorescence to locate specific organelles for O-PTIR measurement, thus capturing molecular structures at the sub-cellular level directly in cells, which is not possible using traditional infrared microspectroscopy or immunofluorescence microscopy alone. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nanomedicine: Nanotechnology, Biology and Medicine
volume
43
article number
102563
pages
102563 - 102563
publisher
Elsevier
external identifiers
  • pmid:35504462
  • scopus:85129979695
ISSN
1549-9642
DOI
10.1016/j.nano.2022.102563
language
English
LU publication?
yes
id
6ab5e19f-9c4c-4af0-9b7b-6022a191adc0
date added to LUP
2022-05-13 16:49:05
date last changed
2023-11-21 09:27:06
@article{6ab5e19f-9c4c-4af0-9b7b-6022a191adc0,
  abstract     = {{Light microscopy has been a favorite tool of biological studies for almost a century, recently producing detailed images with exquisite molecular specificity achieving spatial resolution at nanoscale. However, light microscopy is insufficient to provide chemical information as a standalone technique. An increasing amount of evidence demonstrates that optical photothermal infrared microspectroscopy (O-PTIR) is a valuable imaging tool that can extract chemical information to locate molecular structures at submicron resolution. To further investigate the applicability of sub-micron infrared microspectroscopy for biomedical applications, we analyzed the contribution of substrate chemistry to the infrared spectra acquired from individual neurons grown on various imaging substrates. To provide an example of correlative immunofluorescence/O-PTIR imaging, we used immunofluorescence to locate specific organelles for O-PTIR measurement, thus capturing molecular structures at the sub-cellular level directly in cells, which is not possible using traditional infrared microspectroscopy or immunofluorescence microscopy alone.}},
  author       = {{Paulus, Agnes and Yogarasa, Sahana and Kansiz, Mustafa and Martinsson, Isak and Gouras, Gunnar K. and Deierborg, Tomas and Engdahl, Anders and Borondics, Ferenc and Klementieva, Oxana}},
  issn         = {{1549-9642}},
  language     = {{eng}},
  pages        = {{102563--102563}},
  publisher    = {{Elsevier}},
  series       = {{Nanomedicine: Nanotechnology, Biology and Medicine}},
  title        = {{Correlative imaging to resolve molecular structures in individual cells: Substrate validation study for super-resolution infrared microspectroscopy}},
  url          = {{http://dx.doi.org/10.1016/j.nano.2022.102563}},
  doi          = {{10.1016/j.nano.2022.102563}},
  volume       = {{43}},
  year         = {{2022}},
}