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Polydimethylsiloxane tissue-mimicking phantoms with tunable optical properties
SIGNIFICANCE: The polymer, polydimethylsiloxane (PDMS), has been increasingly used to make tissue simulating phantoms due to its excellent processability, durability, flexibility, and limited tunability of optical, mechanical, and thermal properties. We report on a robust technique to fabricate PDMS...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Society of Photo-Optical Instrumentation Engineers
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8601433/ https://www.ncbi.nlm.nih.gov/pubmed/34796707 http://dx.doi.org/10.1117/1.JBO.27.7.074706 |
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author | Goldfain, Aaron M. Lemaillet, Paul Allen, David W. Briggman, Kimberly A. Hwang, Jeeseong |
author_facet | Goldfain, Aaron M. Lemaillet, Paul Allen, David W. Briggman, Kimberly A. Hwang, Jeeseong |
author_sort | Goldfain, Aaron M. |
collection | PubMed |
description | SIGNIFICANCE: The polymer, polydimethylsiloxane (PDMS), has been increasingly used to make tissue simulating phantoms due to its excellent processability, durability, flexibility, and limited tunability of optical, mechanical, and thermal properties. We report on a robust technique to fabricate PDMS-based tissue-mimicking phantoms where the broad range of scattering and absorption properties are independently adjustable in the visible- to near-infrared wavelength range from 500 to 850 nm. We also report on an analysis method to concisely quantify the phantoms’ broadband characteristics with four parameters. AIM: We report on techniques to manufacture and characterize solid tissue-mimicking phantoms of PDMS polymers. Tunability of the absorption ([Formula: see text]) and reduced scattering coefficient spectra ([Formula: see text]) in the wavelength range of 500 to 850 nm is demonstrated by adjusting the concentrations of light absorbing carbon black powder (CBP) and light scattering titanium dioxide powder (TDP) added into the PDMS base material. APPROACH: The [Formula: see text] and [Formula: see text] of the phantoms were obtained through measurements with a broadband integrating sphere system and by applying an inverse adding doubling algorithm. Analyses of [Formula: see text] and [Formula: see text] of the phantoms, by fitting them to linear and power law functions, respectively, demonstrate that independent control of [Formula: see text] and [Formula: see text] is possible by systematically varying the concentrations of CBP and TDP. RESULTS: Our technique quantifies the phantoms with four simple fitting parameters enabling a concise tabulation of their broadband optical properties as well as comparisons to the optical properties of biological tissues. We demonstrate that, to a limited extent, the scattering properties of our phantoms mimic those of human tissues of various types. A possible way to overcome this limitation is demonstrated with phantoms that incorporate polystyrene microbead scatterers. CONCLUSIONS: Our manufacturing and analysis techniques may further promote the application of PDMS-based tissue-mimicking phantoms and may enable robust quality control and quality checks of the phantoms. |
format | Online Article Text |
id | pubmed-8601433 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Society of Photo-Optical Instrumentation Engineers |
record_format | MEDLINE/PubMed |
spelling | pubmed-86014332021-11-19 Polydimethylsiloxane tissue-mimicking phantoms with tunable optical properties Goldfain, Aaron M. Lemaillet, Paul Allen, David W. Briggman, Kimberly A. Hwang, Jeeseong J Biomed Opt Special Section on Tissue Phantoms to Advance Biomedical Optical Systems SIGNIFICANCE: The polymer, polydimethylsiloxane (PDMS), has been increasingly used to make tissue simulating phantoms due to its excellent processability, durability, flexibility, and limited tunability of optical, mechanical, and thermal properties. We report on a robust technique to fabricate PDMS-based tissue-mimicking phantoms where the broad range of scattering and absorption properties are independently adjustable in the visible- to near-infrared wavelength range from 500 to 850 nm. We also report on an analysis method to concisely quantify the phantoms’ broadband characteristics with four parameters. AIM: We report on techniques to manufacture and characterize solid tissue-mimicking phantoms of PDMS polymers. Tunability of the absorption ([Formula: see text]) and reduced scattering coefficient spectra ([Formula: see text]) in the wavelength range of 500 to 850 nm is demonstrated by adjusting the concentrations of light absorbing carbon black powder (CBP) and light scattering titanium dioxide powder (TDP) added into the PDMS base material. APPROACH: The [Formula: see text] and [Formula: see text] of the phantoms were obtained through measurements with a broadband integrating sphere system and by applying an inverse adding doubling algorithm. Analyses of [Formula: see text] and [Formula: see text] of the phantoms, by fitting them to linear and power law functions, respectively, demonstrate that independent control of [Formula: see text] and [Formula: see text] is possible by systematically varying the concentrations of CBP and TDP. RESULTS: Our technique quantifies the phantoms with four simple fitting parameters enabling a concise tabulation of their broadband optical properties as well as comparisons to the optical properties of biological tissues. We demonstrate that, to a limited extent, the scattering properties of our phantoms mimic those of human tissues of various types. A possible way to overcome this limitation is demonstrated with phantoms that incorporate polystyrene microbead scatterers. CONCLUSIONS: Our manufacturing and analysis techniques may further promote the application of PDMS-based tissue-mimicking phantoms and may enable robust quality control and quality checks of the phantoms. Society of Photo-Optical Instrumentation Engineers 2021-11-18 2022-07 /pmc/articles/PMC8601433/ /pubmed/34796707 http://dx.doi.org/10.1117/1.JBO.27.7.074706 Text en © 2022 The Authors https://creativecommons.org/licenses/by/4.0/Published by SPIE under a Creative Commons Attribution 4.0 International License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI. |
spellingShingle | Special Section on Tissue Phantoms to Advance Biomedical Optical Systems Goldfain, Aaron M. Lemaillet, Paul Allen, David W. Briggman, Kimberly A. Hwang, Jeeseong Polydimethylsiloxane tissue-mimicking phantoms with tunable optical properties |
title | Polydimethylsiloxane tissue-mimicking phantoms with tunable optical properties |
title_full | Polydimethylsiloxane tissue-mimicking phantoms with tunable optical properties |
title_fullStr | Polydimethylsiloxane tissue-mimicking phantoms with tunable optical properties |
title_full_unstemmed | Polydimethylsiloxane tissue-mimicking phantoms with tunable optical properties |
title_short | Polydimethylsiloxane tissue-mimicking phantoms with tunable optical properties |
title_sort | polydimethylsiloxane tissue-mimicking phantoms with tunable optical properties |
topic | Special Section on Tissue Phantoms to Advance Biomedical Optical Systems |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8601433/ https://www.ncbi.nlm.nih.gov/pubmed/34796707 http://dx.doi.org/10.1117/1.JBO.27.7.074706 |
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