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Paper-based diagnostic test kits

Explore the methods, organizations and applications shaping paper-based diagnostic kits. Recent work combines paper microfluidics with molecular assays, electrochemical readouts and smartphone analysis.

Updated 2 November 2026Based on 5,087 documents
494
Organizations active (24 mo)
+6% activity YoY
4
Startups (young or venture-backed)
9
Funding rounds (24 mo)
$1.3B disclosed
456
Publications in 2025
+8% vs 2024

Paper-based diagnostic test kits in 2026: overview

Paper-based diagnostic kits use porous cellulose or similar materials to move a sample through an assay, where a biological or chemical target produces a visible or instrument-readable signal. Their simple fluid handling can support testing outside centralized laboratories, including field, home and point-of-care settings. The design challenge is to keep results sensitive and reproducible despite variation in samples, paper flow and environmental conditions, while making the test easy to manufacture and interpret.

Current work is extending paper tests beyond simple visual strips. In October 2026, researchers at the University of Granada and University of Glasgow reported a smartphone-based μPAD that controls flow and heat for colorimetric nitrite measurement. In August 2026, Cranfield University and Zhejiang University described a paper-microfluidic platform combining multiplexed isothermal amplification and CRISPR/Cas12a for aquatic pathogens. A September 2026 study from Xi'an Jiaotong University and Shanghai JiaoTong University used laser-induced graphene to build paper-based electrochemical immunoassays. Together, these efforts point toward integrated, quantitative tests, while sample handling, readout consistency and practical deployment remain important engineering hurdles.

  • 1Beyond visual strips: Smartphone analysis, electrical readouts and signal amplification are adding quantitative capability to paper formats without abandoning decentralized use.
  • 2Molecular assays move onto paper: LAMP and CRISPR combinations are bringing pathogen-specific detection to paper microfluidics, with aquatic monitoring a prominent use case.
  • 3Reproducibility remains a hurdle: Flow control, sample variability and consistent interpretation still separate promising prototypes from dependable field-ready tests.
Summary generated from Linknovate data on 2 November 2026.

Top organizations working on paper-based diagnostic test kits

Ranked by Linknovate activity score · last 24 months

The activity score adds up the relevance of every patent, publication, grant and news item linking an organization to paper-based diagnostic test kits. Showing 7 of 494 organizations.

#OrganizationApproachSignals (24 mo)MomentumWhy it matters
1
Chulalongkorn University Research · Thailand
General PUB 25 +8% Its researchers develop paper-based immunosensors for clinical and pathogen testing, including visual distance-readout detection of Salmonella and assays targeting bacterial toxins.
2
Ohio State University Research · United States
General PUB 5 · NEWS 9 -83% Researchers developed a microfluidic paper device for malaria surveillance and a signal-amplified paper immunoassay for detecting SARS-CoV-2 nucleocapsid protein in long-COVID diagnosis.
3 Paper-based molecular assays PUB 21 +10% Recently, researchers developed a paper-microfluidic LAMP–CRISPR platform for multiplex detection of waterborne pathogens, including E. coli, Salmonella, and Shigella.
4
Keio University Research · Japan
Paper-based molecular assays PUB 13 -56% Researchers developed an origami paper immunoassay that uses CRISPR/Cas12a signal amplification, alongside paper sensors for environmental and food analysis.
5
Zhejiang University Research · China
Paper-based molecular assays PUB 13 +60% Researchers are developing paper-microfluidic diagnostics combining isothermal amplification and CRISPR/Cas12a for aquatic pathogens, as well as paper tests for viral RNA and proteins.
6
University of Sao Paulo Research · Brazil
Electrochemical paper sensors PUB 9 +25% Researchers develop electrochemical paper microfluidic sensors, including filament-based electrodes for lactate biosensing in continuous-flow devices.
7
Shantou University Research · China
General PUB 8 +0% Researchers work on practical fabrication of paper microfluidic devices, including PGMEA patterning and wax soft lithography for point-of-care and analytical applications.
8
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ApproachPAT 00 · PUB 00
GRANTS 0 · NEWS 00
+00%Available to registered users.
9
··Hidden organizationCompany
ApproachPAT 00 · PUB 00
GRANTS 0 · NEWS 00
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10
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ApproachPAT 00 · PUB 00
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+487 more organizations
Including 4 startups and 466 universities & research centers. Filter by country, approach and maturity.

Startups to watch and leading research centers

Startups to watch 4 total

Young and venture-backed companies with the highest activity score.
  • SENSE4MED srlItalyThe company develops miniaturized sensing technologies, including a paper-based electrochemical biosensor for phytic acid and a molecularly imprinted paper sensor for breath analysis.
  • ··
    Hidden startupCountryAvailable to registered users, with funding and founding year.
See all 4 startups, with funding and founding year

Leading research institutions 466 total

Ranked by publications, patents, grants and news in the last 24 months.
  • Chulalongkorn UniversityThailandIts researchers develop paper-based immunosensors for clinical and pathogen testing, including visual distance-readout detection of Salmonella and assays targeting bacterial toxins.
  • Ohio State UniversityUnited StatesResearchers developed a microfluidic paper device for malaria surveillance and a signal-amplified paper immunoassay for detecting SARS-CoV-2 nucleocapsid protein in long-COVID diagnosis.
  • Chinese Academy of Sciences CASChinaRecently, researchers developed a paper-microfluidic LAMP–CRISPR platform for multiplex detection of waterborne pathogens, including E. coli, Salmonella, and Shigella.
  • ··
    Hidden research institutionCountryAvailable to registered users, with their key researchers.
  • ··
    Hidden research institutionCountryAvailable to registered users, with their key researchers.
See all research groups and their key researchers

Where paper-based diagnostic test kits innovation happens

United States
32.4%
China
26.5%
India
11.4%
United Kingdom
9.0%
Japan
6.1%
Germany
6.1%
South Korea
5.2%
Canada
4.6%
Spain
4.5%
Italy
4.4%
Rest of worldEurope

Share of documents with at least one organization from each country.

Open the interactive map with all 494 organizations

Main technical approaches

Last 24 months
ApproachWhat it isDocumentsLeading organizations
Lateral-flow immunoassaysAntibody-based capture produces a visible or instrument-read signal on a strip; simplicity is an advantage, while sensitivity and quantification can be limiting. 239
Siemens AG, Chinese University of Hong Kong, Diagnostic Ltd.
Paper microfluidic colorimetryPatterned paper routes samples into color-producing reactions; it supports low-complexity readout but can be affected by lighting, flow variation and subjective interpretation. 206
Cranfield University, Shantou University, Chulalongkorn University
Electrochemical paper sensorsElectrodes on paper convert target recognition into an electrical signal; they can improve quantitative measurement but require instrumentation and robust electrode fabrication. 113
Shandong University, Harbin Institute of Technology, Guangzhou University
Paper-based molecular assaysNucleic-acid amplification and recognition chemistries detect genetic targets on paper; they offer specificity but add reagent, temperature-control and workflow demands. 96
Cranfield University, Chinese University of Hong Kong, Zhejiang University
Chemical and enzymatic test stripsChemical or enzyme reactions produce a target-dependent signal on a strip; the format is straightforward, but selectivity and stable performance can be challenging. 3
Nirma University, Shandong Second Medical University (Fuyanshan Campus), 37975 Concordia University

Funding and investment

$1.3B
Disclosed private funding, 9 rounds in the last 24 months
$14.4M
Public grant funding since 2020, across 24 grants
4
Startups active in the last 24 months

Recent funding rounds

Jan 2026
Jabil Inc. United States
$1BDebt And Equity Financing
Sep 2025
Stanford University United States · National Institutes of Health
UndisclosedGrant
Month 20XX
Hidden organization Country · investors
$00MSeries X
Month 20XX
Hidden organization Country · investors
$00MSeries X
See all 9 rounds, with investors and amounts

Reported funding totals are $14,395,135 across 24 grants since 2020, plus 9 funding rounds totaling $1,260,896,002. These topic-linked figures need relevance screening; for example, Jabil Inc.'s debt-and-equity financing was recorded in January 2026 but is not necessarily specific to diagnostic kits.

Patent landscape

Top patent holders · last 24 months
Ahlstrom
2
Jabil Inc.
2
University of Technology, Sydney
1
University of Southern California
1
Seoul National University of Science and Technology
1
See every patent holder and their full portfolio

Recent developments

Latest news, duplicates removed
Get alerts for new paper-based diagnostic test kits developments

Frequently asked questions about paper-based diagnostic test kits

What companies are working on paper-based diagnostic test kits?

Thermo Fisher Scientific and Dickinson appear among the corporate organizations associated with this topic, while Ahlstrom and Jabil Inc. are listed as patent holders with two patents each. SENSE4MED srl is a named startup developing paper-based electrochemical sensing. The available company profiles provide less detail on commercial kit portfolios than on research activity, so specific products and supplier roles should be verified.

Which paper-based diagnostic test kit startups are promising in 2026?

SENSE4MED srl is the clearest named startup in the available data, with work on a paper-based electrochemical biosensor for phytic acid and a molecularly imprinted paper sensor for breath analysis. The dataset identifies 4 startups overall, but does not provide detailed product validation or commercialization data for all of them. Treat this as a starting point for diligence, not a ranking of prospects.

Which universities and research centers lead paper-based diagnostic test kit research?

Chulalongkorn University leads the named organizations with 25 documents in the 24-month window, followed by the Chinese Academy of Sciences with 21 and Ohio State University with 14. Their work spans immunosensors, paper-microfluidic molecular assays and malaria surveillance. Other active groups include Zhejiang University, Keio University and Cranfield University, with research covering CRISPR, food and water testing, and image interpretation.

How much funding has paper-based diagnostic test kits received?

The reported totals are $14,395,135 across 24 grants since 2020 and $1,260,896,002 across 9 funding rounds. The round total includes broad financing records that may not be dedicated to paper diagnostics, so it should not be interpreted as sector-specific investment without checking each item. The grant figure is a separate funding signal and is also linked to the topic dataset.

Who holds the most paper-based diagnostic test kit patents?

Ahlstrom and Jabil Inc. are the leading named patent holders, with two patents each in the available records. University of Technology, Sydney, University of Southern California, Seoul National University of Science and Technology, and other listed organizations each have one. These figures describe patent records in the dataset and do not establish the scope, status or commercial relevance of each patent.

Is paper-based diagnostic test kit patent activity growing?

No: patent activity declined 69.2% in the latest 12-month comparison with the preceding 12 months, while publications rose 8.1%. The figures indicate that research output is not moving in step with patenting. They do not by themselves show whether the shift reflects fewer inventions, filing delays or changes in how relevant patents are classified.

What are the latest developments in paper-based diagnostic test kits?

Recent work combines paper microfluidics with digital or molecular functions. In October 2026, the University of Granada and University of Glasgow reported a smartphone-based, flow-controlled μPAD for colorimetric nitrite measurement. In August 2026, Cranfield University and Zhejiang University described a paper platform combining isothermal amplification and CRISPR/Cas12a for aquatic pathogens. A September 2026 study used laser-induced graphene for paper-based electrochemical immunoassays.

What are the main approaches in paper-based diagnostic test kits and how do they differ?

The main approaches are lateral-flow immunoassays, paper microfluidic colorimetry, electrochemical paper sensors, paper-based molecular assays, and chemical or enzymatic test strips. They differ in how they recognize a target and produce a readout: antibodies or enzymes can create visible signals, molecular assays amplify genetic targets, and electrochemical sensors measure electrical changes. Greater quantification or specificity can require more complex fabrication, reagents or equipment.

What are the applications of paper-based diagnostic test kits?

Recorded applications include food and water safety, infectious disease testing, metabolic and chronic disease testing, pregnancy and reproductive health, and veterinary and agricultural testing. Food and water safety has 164 documents, while infectious disease testing has 112. Recent examples include paper assays for aquatic pathogens, foodborne bacteria and biomarkers. These categories reflect documented research and do not indicate that each application has a validated commercial kit.

Go beyond the top 7

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