Author:
Dissanayake Kasun P. W.,Ghosh Souvik,Binetti Leonardo,Alwis Lourdes,Azizur Rahman B. M.,Sun Tong,Grattan Kenneth T. V.
Abstract
This research introduces a novel label-free graphene oxide-coated dual-peak long-period grating sensor for measuring protein concentrations. It achieves high sensitivity (22 nm/(g/mL)) and a low limit of detection (0.9 µg/mL), demonstrating extremely high potential for fiber optic biosensor development.