Lab-on-a-chip based portable blood analysis systems would allow point-of-care measurements, e.g. in an ambulance, or in remote areas with no fast access to medical care. Such a systemwould provide much faster information about the health of a patient. Here,we present a system that is based on absorption spectroscopy and uses an organic laser, which is tunable in the visible range. The feasibility of the system is shown with a table-top setup using laboratory equipment. Measurements of human albumin show linear behaviour in a range from 2.5 g/L to 60 g/L. In a consecutive setup the system is implemented on a microfluidic chip and is capable of measuring simultaneously transmitted and side scattered intensities, even with ambient light present. Air-suspended grating couplers on polymers are shown as the first element of a lab-on-a-chip implementation.
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机译：基于芯片实验室的便携式血液分析系统将允许进行即时点测量，例如在救护车中或在无法快速获得医疗服务的偏远地区。这样的系统将提供有关患者健康的更快的信息。在这里，我们提出一种基于吸收光谱的系统，该系统使用在可见光范围内可调的有机激光。该系统的可行性通过使用实验室设备的桌面设置来显示。人白蛋白的测量显示出2.5 g / L至60 g / L的线性行为。在连续设置中，该系统在微流控芯片上实现，即使在存在环境光的情况下，也能够同时测量透射强度和侧面散射强度。聚合物上的空气悬浮光栅耦合器被显示为芯片实验室的实施方案的第一要素。
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