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Fused filament fabrication 3D printed polylactic acid electroosmotic pumps
journal contribution
posted on 2023-05-21, 10:38 authored by Wu, L, Beirne, S, Cabot, JM, Brett PaullBrett Paull, Wallace, GG, Innis, PCAdditive manufacturing (3D printing) offers a flexible approach for the production of bespoke microfluidic structures such as the electroosmotic pump. Here a readily accessible fused filament fabrication (FFF) 3D printing technique has been employed for the first time to produce microcapillary structures using low cost thermoplastics in a scalable electroosmotic pump application. Capillary structures were formed using a negative space 3D printing approach to deposit longitudinal filament arrangements with polylactic acid (PLA) in either “face-centre cubic” or “body-centre cubic” arrangements, where the voids deliberately formed within the deposited structure act as functional micro-capillaries. These 3D printed capillary structures were shown to be capable of functioning as a simple electroosmotic pump (EOP), where the maximum flow rate of a single capillary EOP was up to 1.0 μl min−1 at electric fields of up to 750 V cm−1. Importantly, higher flow rates were readily achieved by printing parallel multiplexed capillary arrays.
History
Publication title
Lab on A ChipVolume
2021Issue
21Pagination
3338-3351ISSN
1473-0189Department/School
School of Natural SciencesPublisher
Royal Soc ChemistryPlace of publication
Thomas Graham House, Science Park, Milton Rd, Cambridge, England, Cambs, Cb4 0WfRights statement
Copyright 2021 The Royal Society of ChemistryRepository Status
- Restricted