Narrowband diffuse reflectance spectroscopy in the 900-1000 nm wavelength region to quantify water and lipid content of turbid media

Posted on 04.05.2021 - 14:36
We report a narrow wavelength band diffuse reflectance spectroscopy (nb-DRS) method to determine water and fat of scattering media in the 900-1000 nm range. This method was validated on a set of turbid emulsion phantoms with various water and lipid compositions. Robustness to scattering assumptions was demonstrated and compared against measured scattering by a frequency-domain photon migration system. nb-DRS was also tested on ex-vivo porcine samples and compared against direct tissue water extraction by analytical chemistry methods. We speculate nb-DRS has potential applications in portable devices such as clinical and digital health wearables.

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Lam, Jesse; Tu, Kelsey; Kim, Sehwan (2021): Narrowband diffuse reflectance spectroscopy in the 900-1000 nm wavelength region to quantify water and lipid content of turbid media. The Optical Society. Collection. https://doi.org/10.6084/m9.figshare.c.5404623.v2
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