A 3d-printed optical reader for cost-efficient enumeration of cd4 cells for point-of-care diagnostics of hiv in resource-poor settings
Glynn, MacdaraORCID: 0000-0002-6347-4348, Kendlin, Jane, Kinahan, David J.ORCID: 0000-0003-1968-2016 and Ducrée, JensORCID: 0000-0002-0366-1897
(2015)
A 3d-printed optical reader for cost-efficient enumeration of cd4 cells for point-of-care diagnostics of hiv in resource-poor settings.
In: The 19th International Conference on Miniaturized Systems for Chemistry and Life Sciences (MicroTAS2015), 25-29 Nov 2015, Gyeongju, Korea.
Here we present a low cost, 3D printed optical reader which is compatible with a disposable, finger actuated chip which can be used for rapid CD4+ enumeration. This portable and widely autonomous device provides the next step in a workflow which can meet the WHO ASSURED requirements for assessment of HIV status in resource-poor settings. The reader is composed of 3D printed parts where the microfluidic chip can be moved along the optical axis of the objective lens for focusing using a screw adapted from a masonry bolt. Performance of the reader shows good agreement with measurements made using a conventional inverted microscope.
Item Type:
Conference or Workshop Item (Poster)
Event Type:
Conference
Refereed:
Yes
Uncontrolled Keywords:
3D Printing; Optical Measurement; Point of Care; HIV; CD4 Enumeration