Fused filament fabrication 3D printed polylactic acid electroosmotic pumps.
Lab Chip
; 21(17): 3338-3351, 2021 09 07.
Article
em En
| MEDLINE
| ID: mdl-34231640
ABSTRACT
Additive 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.
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poliésteres
/
Impressão Tridimensional
Idioma:
En
Ano de publicação:
2021
Tipo de documento:
Article