The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand. It's been MIA for more than a year thanks to a patent spat, but it's back in action now. Apple has your ...

Abstract: The aim of this study is to develop a noninvasive medical oxygen sensor using the acoustic resonance frequency tracking technique. To make it realize, the optimization of sound-resonance ...

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Abstract: The sensing sensitivity and response are highly dependent on the pore size and hydrophobicity of the matrix for optical fiber dissolved oxygen (DO) sensors. This work describes the ...