All-organic optoelectronic sensor for pulse oximetry.

Abstract:

:Pulse oximetry is a ubiquitous non-invasive medical sensing method for measuring pulse rate and arterial blood oxygenation. Conventional pulse oximeters use expensive optoelectronic components that restrict sensing locations to finger tips or ear lobes due to their rigid form and area-scaling complexity. In this work, we report a pulse oximeter sensor based on organic materials, which are compatible with flexible substrates. Green (532 nm) and red (626 nm) organic light-emitting diodes (OLEDs) are used with an organic photodiode (OPD) sensitive at the aforementioned wavelengths. The sensor's active layers are deposited from solution-processed materials via spin-coating and printing techniques. The all-organic optoelectronic oximeter sensor is interfaced with conventional electronics at 1 kHz and the acquired pulse rate and oxygenation are calibrated and compared with a commercially available oximeter. The organic sensor accurately measures pulse rate and oxygenation with errors of 1% and 2%, respectively.

journal_name

Nat Commun

journal_title

Nature communications

authors

Lochner CM,Khan Y,Pierre A,Arias AC

doi

10.1038/ncomms6745

subject

Has Abstract

pub_date

2014-12-10 00:00:00

pages

5745

issn

2041-1723

pii

ncomms6745

journal_volume

5

pub_type

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