1. High-performance blood plasma separation based on a Janus membrane technique and RBC agglutination reaction.
- Author
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Xu, Bing, Zhang, Juan, Pan, Deng, Ni, Jincheng, Yin, Kun, Zhang, Qilun, Ding, Yinlong, Li, Ang, Wu, Dong, and Shen, Zuojun
- Subjects
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ERYTHROCYTES , *AGGLUTINATION , *PLASMA flow , *POLYMERSOMES , *MEMBRANE separation , *BLOOD cells , *BLOOD plasma - Abstract
Separation of plasma which is full of various biomarkers is critical for clinical diagnosis. However, the point-of-care plasma separation often relies on microfluidic filtration membranes which are usually limited in purity, yield, hemolysis, extraction speed, hematocrit level, and protein recovery. Here, we have developed a high-performance plasma membrane separation technique based on a Janus membrane and red blood cell (RBC) agglutination reaction. The RBC agglutination reaction can form larger RBC aggregates to separate plasma from blood cells. Then, the Janus membrane, serving as a multipore microfilter to block large RBC aggregates, allows the plasma to flow from the hydrophobic side to its hydrophilic side spontaneously. As a result, the separation technique can extract highly-purified plasma (99.99%) from whole blood with an ultra-high plasma yield (∼80%) in ∼80 s. Additionally, the separation technique is independent of the hematocrit level and can avoid hemolysis. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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