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One step multi-material 3D printing for the fabrication of a photometric detector flow cell

Citation

Cecil, F and Guijt, RM and Henderson, AD and Macka, M and Breadmore, MC, One step multi-material 3D printing for the fabrication of a photometric detector flow cell, Analytica Chimica Acta, 1097 pp. 127-134. ISSN 0003-2670 (2020) [Refereed Article]

Copyright Statement

Copyright 2019 Elsevier B.V.

DOI: doi:10.1016/j.aca.2019.10.075

Abstract

Optical detection is the most common detection mode for many analytical assays. Photometric detection systems and their integration with analytical systems usually require several assembly parts and manual alignment of the capillary/tubing which affects sensitivity and repeatability. 3D printing is an innovative technology for the fabrication of integrated complex detection systems. One step multi-material 3D printing has been explored to fabricate a photometric detector flow cell from optically transparent and opaque materials using a dual-head FDM 3D printer. Integration of the microchannel, the detection window and the slit in a single device eliminates the need for manual alignment of fluidic and optical components, and hence improves sensitivity and repeatability. 3D printing allowed for rapid design optimisation by varying the slit dimension and optical pathlength. The optimised design was evaluated by determining stray light, effective path length and the signal to noise ratio using orange G. The optimised flow cell with extended path length of 10 mm and 500 μm slit yielded 0.02% stray light, 89% effective path length and detection limit of 2 nM. The sensitivity was also improved by 80% in the process of optimisation, using a blue 470 nm LED as a light source.

Item Details

Item Type:Refereed Article
Keywords:3D printing, fused deposition modelling, fight emitting diode, photometric detector flow cell, straylight, effective path length, analytical chemistry
Research Division:Chemical Sciences
Research Group:Analytical chemistry
Research Field:Separation science
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the chemical sciences
UTAS Author:Cecil, F (Mr Farhan Cecil)
UTAS Author:Guijt, RM (Dr Rosanne Guijt)
UTAS Author:Henderson, AD (Associate Professor Alan Henderson)
UTAS Author:Macka, M (Professor Mirek Macka)
UTAS Author:Breadmore, MC (Professor Michael Breadmore)
ID Code:143956
Year Published:2020
Funding Support:Australian Research Council (FT130100101)
Web of Science® Times Cited:8
Deposited By:Chemistry
Deposited On:2021-04-12
Last Modified:2021-05-04
Downloads:0

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