Cited by 210Optical Imaging and Spectroscopy TechniquesSpectroscopy Techniques in Biomedical and Chemical ResearchLaser Applications in Dentistry and Medicine

Optical windows for head tissues in near‐infrared and short‐wave infrared regions: Approaching transcranial light applications

Golovynskyi, Sergii, Golovynska, Iuliia, Stepanova, Ludmila I., Datsenko, Oleksandr I., Liu, Liwei, Qu, Junle, Ohulchanskyy, Tymish Y.·2018·Journal of Biophotonics

Abstract

Optical properties of the rat head tissues (brain cortex, cranial bone and scalp skin) are assessed, aiming at transcranial light applications such as optical imaging and phototherapy. The spectral measurements are carried out over the wide spectral range of 350 to 2800 nm, involving visible, near‐infrared (NIR) and short‐wave infrared (SWIR) regions. Four tissue transparency windows are considered: ~700 to 1000 nm (NIR‐I), ~1000 to 1350 nm (NIR‐II), ~1550 to 1870 nm (NIR‐III or SWIR) and ~2100 to 2300 nm (SWIR‐II). The values of attenuation coefficient and total attenuation length are determined for all windows and tissue types. The spectra indicate transmittance peaks in NIR, NIR‐II and SWIR‐II, with maximum tissue permeability for SWIR light. The use of SWIR‐II window for the transcranial light applications is substantiated. Furthermore, absorbance of the head tissues is investigated in details, by defining and describing the characteristic absorption peaks in NIR‐SWIR.

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Crossref · 10.1002/jbio.201800141

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Authors
Golovynskyi, S., Golovynska, I., Stepanova, L. I., Datsenko, O. I., Liu, L., Qu, J., & Ohulchanskyy, T. Y.
Affiliations
  • Shenzhen University (CN)
  • Taras Shevchenko National University of Kyiv (UA)
Corresponding author
  • Qu, Junle
  • Ohulchanskyy, Tymish Y.
Venue
Journal of Biophotonics
Publisher
Wiley
Published
2018-09-07
Volume
11
Issue
12
Pages
e201800141-e201800141
ISSN
  • 1864-063X (ISSN-L)
  • 1864-0648
OpenAlex
W2887981390
Cited by
209
References
77
Citations by year
2026: 17 · 2025: 32 · 2024: 34 · 2023: 27 · 2022: 36 · 2021: 29 · 2020: 20 · 2019: 14
FWCI
10.88
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Biophotonics (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (61525503, 61620106016, 81727804, 61722508)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biophysics › Spectroscopy Techniques in Biomedical and Chemical Research
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Laser Applications in Dentistry and Medicine
Keywords
tissue optical properties, near-infrared, shortwave infrared, cerebral cortex, cranial bone, scalp skin, attenuation coefficient, absorption spectra, phototherapy, optical imaging
MeSH terms
Animals, Infrared Rays, Skull, Rats, Optical Phenomena, Absorption, Physicochemical

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