Low-cost composite autosampler for wastewater sampling.

Hadi A Al-Agele, Bao D Nguyen, Liam P Zimmermann, Gurpreet Singh, Cara Walter, Chet Udell, John S Selker

Abstract read

In one paragraph

Article in HardwareX, 2025. 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

7 authors.

Hadi A Al-AgeleOPEnS Lab, Oregon State University, Corvallis, OR, United States.

Bao D NguyenOPEnS Lab, Oregon State University, Corvallis, OR, United States.

Liam P ZimmermannOPEnS Lab, Oregon State University, Corvallis, OR, United States.

Gurpreet SinghOPEnS Lab, Oregon State University, Corvallis, OR, United States.

Cara WalterDepartment of Biological & Ecological Engineering, Oregon State University, Corvallis OR, United States.

Chet UdellOPEnS Lab, Oregon State University, Corvallis, OR, United States.

John S SelkerOPEnS Lab, Oregon State University, Corvallis, OR, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Wastewater monitoring is a proven method for detecting viruses, illicit drug consumption, pharmaceutical use/abuse, water pollution, and the occurrence of antimicrobial resistance genes. Analyzing sewage water for pathogens like the SARS-Cov-2 virus could enable early detection of infected areas or virus variants. We developed a low-cost (∼US$1000), open-source, composite automatic water sampler with operational flexibility and simple data logging. Sample quantity is measured and cut off appropriately by continuously weighing the incoming liquid. Our system is customizable in both its hardware and firmware (via options and code modification) which allows for the device to be tailored easily to each application. For example, the user can input sampling quantities from 10 g per sample every 1.5 min to a single 2900 g sample after up to a 16-day delay prior to sampling. The outer diameter and height of the sampler are less than 0.5 m to fit in human-entry openings

Indexed as

Auto-samplerComposite-samplerEpidemiologyLow-cost designWastewater

Identifiers

PMID40115826

DOI10.1016/j.ohx.2025.e00631

PMCPMC11925591

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.