Acoustofluidic Plasmapheresis System Designed for Ultralow Blood Volume Applications.

ABSTRACT: We present an integrated acoustofluidic plasmapheresis system designed for ultralow blood volume applications, such as neonatal care, enabling in-line sampling and plasma separation from whole blood. The system combines a two-stage acoustophoresis chip with microperistaltic pumps and PDMS-based flow pulsation dampeners to ensure continuous, stable operation. The input whole blood is acoustically separated into a cell-free plasma fraction and a returnable cell fraction, enabling closed-loop operation for neonates who have a circulating blood volume as low as 50 mL. The system achieves a plasma generation rate of 27.5 μL/min with ∼100% cell removal, outperforming previous microfluidic plasma separation approaches in terms of purity, throughput, and minimal sample volume. Plasma quality was v

SUBMITTER: Nath A 

PROVIDER: S-EPMC12824985 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature