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. 2018 Dec 27;24(2):021201. doi: 10.1117/1.JBO.24.2.021201

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© The Authors.

Published by SPIE under a Creative Commons Attribution 3.0 Unported License. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Fig. 4 — Evolution of the oxygen-sensing SMART bandage. (a) First-generation system: commercial Nikon D70 DSLR camera equipped with two regular flash units; silicone film containing commercial Oxyphor R2. (b) Second-generation system: industrial Thorlabs CMOS camera connected to an accurate delay pulse generator and a laptop computer; nitrocellulose film containing commercial Oxyphor R2. (c) Third-generation system: customized commercial Nikon D70s camera with separated red and green passing filters mounted on a sliding filter changer; nitrocellulose film containing un-PEGylated new ultrabright phosphor. (d) Fourth-generation system: “off-the-shelf” commercial Nikon D3400 camera equipped with a simple longpass filter; nitrocellulose film containing PEGylated new ultrabright phosphor.