ArticleIEEE sensors journal2019
Analysis of Paper-Based Colorimetric Assays With a Smartphone Spectrometer.
Article in IEEE sensors journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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.
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.
Who cites it
9 citing papers in PubMed.
- Portable Paper-Based Colorimetric Biosensor for Rapid Screening of Organophosphate Exposure via Acetylcholinesterase Activity and RGB Image Analysis.Biosensors · 2026Article
- Optimised RFO tuned RF-DETR model for precision urine microscopy for renal and systemic disease diagnosis.Scientific reports · 2025Article
- A New Caffeine Detection Method Using a Highly Multiplexed Smartphone-Based Spectrometer.Biosensors · 2024Article
- Machine learning-assisted image label-free smartphone platform for rapid segmentation and robust multi-urinalysis.Analytical and bioanalytical chemistry · 2024Article
- Portuino-A Novel Portable Low-Cost Arduino-Based Photo- and Fluorimeter.Sensors (Basel, Switzerland) · 2022Article
- Predictive System Implementation to Improve the Accuracy of Urine Self-Diagnosis with Smartphones: Application of a Confusion Matrix-Based Learning Model through RGB Semiquantitative Analysis.Sensors (Basel, Switzerland) · 2022Article
- CandyCodes: simple universally unique edible identifiers for confirming the authenticity of pharmaceuticals.Scientific reports · 2022Article
- Smartphone-Based Colorimetric Analysis of Urine Test Strips for At-Home Prenatal Care.IEEE journal of translational engineering in health and medicine · 2022Article
- Smartphone-based optical spectroscopic platforms for biomedical applications: a review [Invited].Biomedical optics express · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
Abstract
We report on the adaptation of a smartphone's rear-facing camera to function as a spectrometer that measures the spectrum of light scattered by common paper-based assay test strips. We utilize a cartridge that enables a linear series of test pads in a single strip to be swiped past the read head of the instrument while the phone's camera records video. The strip is housed in a custom-fabricated cartridge that slides through the instrument to facilitate illumination with white light from the smartphone's flash LED that is directed through an optical fiber. We demonstrate the ability to detect subtle changes in the scattered spectrum that enables quantitative analysis of single-analyte and multi-analyte strips. The demonstrated capability can be applied to broad classes of paper-based assays in which visual observation of colored strips is not sufficiently quantitative, and for which analysis of red-green-blue pixel values of a camera image are not capable of measuring complex scattered spectra.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.