All-organic optoelectronic sensor for pulse oximetry
All-organic optoelectronic sensor for pulse oximetry
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DOI：
10.1038/ncomms6745
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发表时间：
2014-12-01
影响因子：
16.6
通讯作者：
Arias, Ana C.
中科院分区：
文献类型：
--
作者：
Lochner, Claire M.;Khan, Yasser;Arias, Ana C.
脉搏血氧饱和度是一种无创性的测量脉搏频率和动脉血氧分压的医学传感方法。传统的脉搏血氧仪使用昂贵的光电元件，由于其刚性的形式和面积缩放的复杂性，这些元件将传感位置限制在指尖或耳垂。在这项工作中，我们报道了一种基于有机材料的、与柔性衬底兼容的脉搏血氧计传感器。绿色(532 Nm)和红色(626 Nm)有机发光二极管(OLED)与对上述波长敏感的有机光电二极管(OPD)一起使用。传感器的有源层是通过旋涂和打印技术从溶液处理的材料中沉积出来的。全有机光电血氧计传感器以1 kHz的频率与传统电子器件对接，并对采集的脉率和氧合进行了校准，并与商用血氧计进行了比较。该有机传感器能准确测量脉搏和氧合，误差分别为1%和2%。
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.