Related Experiment Video
Updated: Jun 23, 2026

Multicolor Fluorescence Detection for Droplet Microfluidics Using Optical Fibers
Published on: May 5, 2016
P-FAB: A Fiber-Optic Biosensor Device for Rapid Detection of COVID-19
Divagar Murugan1, Himanshu Bhatia2, V V R Sai1
1Biomedical Engineering Laboratory, Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai, 600036 India.
None:
Rapid and low-cost diagnosis of COVID-19 is essential to identify the infected subjects, particularly the asymptomatic cases, primarily to arrest the spread of the disease through local transmission. Antibody-based chromatographic serological tests, as an alternative to RT-PCR, offer only limited help due to high false positives. We propose to exploit our field-deployable/portable plasmonic fiber-optic absorbance biosensor (P-FAB) platform for one-step, wash-free detection of SARS-CoV-2 virus particles directly in saliva sample with minimal sample pre-processing.

