| Issue |
EPJ Web Conf.
Volume 287, 2023
EOS Annual Meeting (EOSAM 2023)
|
|
|---|---|---|
| Article Number | 03006 | |
| Number of page(s) | 2 | |
| Section | Topical Meeting (TOM) 3- Biophotonics | |
| DOI | https://doi.org/10.1051/epjconf/202328703006 | |
| Published online | 18 October 2023 | |
https://doi.org/10.1051/epjconf/202328703006
Femtosecond laser rapid prototyping and characterization of microfluidic device for particles sorting
1 Physics Department, University & Polytechnic of Bari
2 IFN-CNR, Bari ;
3 IFN-CNR, Milano
* Corresponding author: author@e-mail.org
Published online: 18 October 2023
Rapid prototyping methods for the fabrication of polymeric labs-on-a-chip (LoC) are on the rise, as they allow high degrees of precision and flexibility. In this contest, the flexibility of ultrafast laser technology enables the rapid prototyping and high-precision micromachining of 3D LoC devices with complex microfluidic channel networks. In this paper, we describe the realization process of a microfluidic tool for fully inertial particles sorting. The microfluidic network was realized in polymethyl methacrylate (PMMA), exploiting femtosecond laser technology. The multilayer device was assembled through a facile and low-cost solvent-assisted method. In particular, we studied the particle focusing in curved inertial microfluidic channel with trapezoidal cross section. A particles focusing along the walls of the device, sensitive to particle size and flow rate, was observed based on the principle of Dean-coupled inertial migration in spiral microchannel.
© The Authors, published by EDP Sciences, 2023
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