Evidence map›Paper›PMID 41550284›Full record

ArticleHardwareX2026

Open-source CNC workstation for paper-based diagnostic assay assembly.

Lucy Tecle, Shannon Riegle, Andrew Piepho, Jacqueline Linnes

Abstract read
In one paragraph

Article in HardwareX, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Lucy TeclePurdue University, 610 Purdue Mall, West Lafayette, IN 47907, United States.
Shannon RiegleIndiana University School of Medicine, 340 W 10th St, Indianapolis, IN 46202, United States.
Andrew PiephoPurdue University, 610 Purdue Mall, West Lafayette, IN 47907, United States.
Jacqueline LinnesPurdue University, 610 Purdue Mall, West Lafayette, IN 47907, United States.

Funding

Pont-of-use Acute HIV Infection Diagnostic for Substance Using PopulationsDP2DA051910 · NIDA · PURDUE UNIVERSITY · PI LINNES, JACQUELINE · 2020 to 2023
$2.6M
Point-of-care screening test for early cervical cancer detectionR01CA246315 · NCI · PURDUE UNIVERSITY · PI LINNES, JACQUELINE, MOHAMMED, SULMA IBRAHIM · 2020 to 2024
$2.0M
NCI NIH HHS R01 CA246315NIDA NIH HHS DP2 DA051910
6 · The paper itself

Abstract

Paper-based diagnostics are promising for point-of-care testing, but their assembly is often manual and can introduce alignment variability. To address this, we developed a low-cost, open-source workstation that repurposes a three-axis computer numerical control (CNC) machine for automated pick-and-place assembly of paper-based assays. The system integrates an Arduino-based controller with GRBL firmware, a custom vacuum end effector, and component holders to handle delicate assay components. This design eliminates reliance on proprietary CNC controls, reducing the costs to under $900 while enabling machine-agnostic adaptability. Performance was validated across dipstick, lateral flow immunoassay, and custom duplex immunoassay formats. Linear placement accuracy averaged ∼0.5-0.6 mm (within functional tolerance for diagnostic readability), while angular deviations (1-3°) remained acceptable for sample flow. Control line intensity in CNC-assembled assays were statistically indistinguishable from hand-assembled assays, confirming preserved diagnostic performance. By lowering the barrier to automated fabrication, this workstation provides an accessible platform for academic labs, startups, and decentralized environments to prototype and scale paper-based diagnostics. The open-source hardware and design files expand opportunities for reproducible, affordable diagnostic assembly in early-stage research and development.

Indexed as

Automated fabricationComputer numerical control (CNC)Low-cost instrumentationOpen-source hardwarePaper-based diagnostics

Identifiers

PMID41550284
PMCPMC12808598

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.