3D-Printed SARS-CoV-2 RNA Genosensing Microfluidic System

journal article in Web of Science

English

Additive manufacturing technology, referred as 3D printing technology, is a growing research field with broad applications from nanosensors fabrication to 3D printing of buildings. Nowadays, the world is dealing with a pandemic and requires the use of simple sensing systems. Here, the strengths of fast screening by a lab-on-a-chip device through electrochemical detection using 3D printing technology for SARS-CoV-2 sensing are combined. This system comprises a PDMS microfluidic channel integrated with an electrochemical cell fully 3D-printed by a 3D printing pen (3D-PP). The 3D-PP genosensor is modified with an ssDNA probe that targeted the N gene sequence of SARS-CoV-2. The sensing mechanism relies on the electro-oxidation of adenines present in ssDNA when in contact with SARS-CoV-2 RNA. The hybridization between ssDNA and target RNA takes a place and ssDNA is desorbed from the genosensor surface, causing a decrease of the sensor signal. The developed SARS-CoV-2/3D-PP genosensor shows high sensitivity and fast response.

additive manufacturing; lab on chip; nucleic acid; electroanalysis

CREVILLEN, A.; MAYORGA-MARTINEZ, C.; VAGHASIYA, J.; PUMERA, M.

1. 6. 2022

WILEY

HOBOKEN

2365-709X

Advanced Materials Technologies

7

6

United States of America

2101121-1

2101121-6

6

https://onlinelibrary.wiley.com/doi/10.1002/admt.202101121