Abstract
Blood tests provide vital diagnostic information regarding several diseases. A key factor that affects the precision and accuracy of blood tests is the interference of red blood cells; however, the conventional methods of blood separation are often complicated and time consuming. Herein, we report a gravity-driven plasma separation device with the new microfluidic design after demonstrating its separation efficiency by using a novel approach for self-containe injection. Our results showed that the separation efficiency improved from 17.1% to 99.7% after adjusting the geometric design of the channel and filter trench. With the aforementioned advantages, this blood separation device has potential applications in point-of-care testing.
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