Biosensing methods and devices using graphene oxide (GO) have recently been explored
for detection and quantification of specific biomolecules from body fluid samples, such as
saliva, milk, urine, and serum. For a practical diagnostics application, any sensing system
must show an absence of nonselective detection of abundant proteins in the fluid matrix.
Because lysozyme is an abundant protein in these body fluids (eg, around 21.4 and 7 μg/mL
of lysozyme is found in human milk and saliva from healthy individuals, and more than 15 or …