Biosensor diagnostics · Founded 2024–2025

Turning the graphene biosensor literature into a PSA test.

PSAGraphene plans to build a biosensor that detects prostate-specific antigen (PSA) using graphene as the sensing material. Our starting point is a 2025 review of graphene-based biosensors for PSA, written by our founding team.

See the solutionView the results
PSAthe single target biomarker
Graphenethe sensing material family
Reviewtype of evidence behind the concept
Concept profile At a glance
TargetProstate-specific antigen
PSA
PlatformGraphene-based biosensor
Graphene
EvidencePublished literature review
Review
Why it matters: A review maps what has already been tried, so product design can start from the strongest published approaches.
The problem

PSA testing deserves a simpler sensor

PSA is a widely used blood marker in prostate health. Our aim is a sensor format that is easier to deploy.

One marker, many settings

PSA is measured in many care settings, so a compact test format could have wide use.

Many designs, little translation

Graphene biosensors for PSA have been reported in research, and turning them into products is the next step.

Choices need evidence

Picking the right graphene material and sensor design should rest on a structured view of the literature.

Our solution

A review-led route to a graphene PSA sensor

We use the review as a design map, then build and validate our own prototype.

Map

Start from the literature

Reviewgraphene-based biosensors for PSA, 2025
  • Collects published graphene PSA sensor work
  • Written by the founding team
  • Guides material and design choices
Build

Design a prototype

Graphenesensing material at the core
  • Select a graphene format from reviewed options
  • Attach a PSA recognition element
  • Aim for a compact readout
Prove

Validate our own data

PSAone target, tested end to end
  • Laboratory testing of the prototype
  • Comparison with standard PSA methods
  • Clinical samples only after lab results
How it works

How we plan to get there

A staged plan. Each stage generates new evidence before the next begins.

  1. 1

    Review the field

    The founding team reviewed graphene-based biosensors for PSA and published the work in 2025.

    Review2025
  2. 2

    Choose the design

    We shortlist graphene materials and sensor formats from the reviewed literature.

    GrapheneDesign
  3. 3

    Build and test

    A prototype sensor is made and tested with PSA in the laboratory.

    PrototypeLab testing
  4. 4

    Compare and refine

    Results are compared with established PSA testing before any clinical study.

    BenchmarkNext stage
Results

Our evidence base today

The current evidence is a published literature review. We have not yet published data from our own prototype.

Reviewarticle type
PSAbiomarker covered
Graphenesensor material family covered
12co-authors on the review

Source: Abdelwahab et al., Clinica Chimica Acta 576, 120406 (2025). doi:10.1016/j.cca.2025.120406

Who it's for

Who it is for

Partners who want to move graphene PSA sensing from papers to products.

Diagnostics developers

  • A literature-led starting point
  • A single, well-known target
  • Room for co-development

Clinical laboratories

  • Future validation partners
  • Input on workflow needs
  • Access to early prototypes

Materials researchers

  • Graphene sensor know-how
  • A defined application
  • Shared testing plans
Where we are

Where the evidence stands

We are at the concept stage and say so plainly.

Review evidence only

Our base is a review of published work, not new experimental data from our own device.

No prototype data yet

Sensitivity, accuracy and stability of a PSAGraphene sensor have not been measured.

Not a diagnostic

Nothing here is approved for clinical use, and any future test would need full validation.

The team

The team

Founded in 2024–2025 by the research team behind the review of graphene-based biosensors for PSA.

SA

Siddig Ibrahim Abdelwahab

Co-author of the PSAGraphene research.

MT

Manal Mohamed Elhassan Taha

Co-author of the PSAGraphene research.

KS

Khaled A. Sahli

Co-author of the PSAGraphene research.

HA

Hatem Ahmed Salem Alqhtani

Co-author of the PSAGraphene research.

AF

Abdullah Farasani

Co-author of the PSAGraphene research.

NK

Nizar A. Khamjan

Co-author of the PSAGraphene research.

HA

Humaid O. Al-Shamsi

Co-author of the PSAGraphene research.

JM

Jobran M. Moshi

Co-author of the PSAGraphene research.

SA

Saeed Alshahrani

Co-author of the PSAGraphene research.

AA

Ahmad Assiri

Co-author of the PSAGraphene research.

MQ

Marwa Qadri

Co-author of the PSAGraphene research.

SM

Syam Mohan

Co-author of the PSAGraphene research.

Frequently asked questions

What does PSAGraphene measure?

Prostate-specific antigen (PSA), using a sensor built on graphene.

What is the evidence behind it?

A 2025 review of graphene-based biosensors for PSA, published in Clinica Chimica Acta by our founding team.

Do you have a working device?

Not yet. Building and testing a prototype is our next stage.

Will it replace laboratory PSA tests?

We make no such claim. Any device would first be compared with established PSA testing.

How can I get involved?

We welcome partners in sensor development, materials and clinical validation.

The research

Peer-reviewed science behind PSAGraphene.

Read the full study behind the product.

Read the paper

Abdelwahab, S. I., Taha, M. M. E., Sahli, K. A., Alqhtani, H. A. S., Farasani, A., Khamjan, N. A., Al-Shamsi, H. O., Moshi, J. M., Alshahrani, S., Assiri, A., Qadri, M., & Mohan, S. (2025). Graphene-based biosensors for PSA. Clinica Chimica Acta, 576, 120406. https://doi.org/10.1016/j.cca.2025.120406

https://doi.org/10.1016/j.cca.2025.120406