TestNPass to fight COVID-19

The COVID-19 pandemic revealed the urgent need for inexpensive, easy-to-use, and reliable diagnostic tools for rapid on-site screening.

TestNPAss diagnostic test requires a simple saliva sample to detect SARS-CoV-2 infection rapidly. It is a single-use test using a graphene biosensor sensitized by antibodies recognizing the virus's S protein. The test operates without a battery and uses contactless near-field communication via a smartphone application.


In 5 minutes, the digital test detects viruses' presence without the need for dedicated reading equipment other than a smartphone. The signal is captured electronically on the biosensor, which accelerates the diagnosis and allows a secure digital transfer of the result.

The test result is tamperproof and recorded in an RFID tag securing user confidentiality and constituting a standalone digital health pass that does not require data transfer over a network.

© 2021 by Grapheal.

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Grapheal (HQ & Nanofab) 

25 rue des Martyrs, 38042 GRENOBLE Cedex 09, FRANCE


Tel: +33 (0) 4 56 38 70 74

Grapheal (Biology Labs) 

BIOPOLIS, 5 Avenue du Grand Sablon, 38700 LA TRONCHE, FRANCE


Tel: +33 (0) 4 57 42 25 96

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