Sensitivity Assessment of Human Body Fluids through PCF-Based Plasmonic Biosensor for Biomedical Applications

Different types of liquids are present in the human body. These liquids are known as body fluids. These fluids include urine, sweat, saliva, breast milk, cell fluid, etc. These body fluids possess unique properties that can be used as a testing fluid to identify various types of diseases present in human beings. Body fluids have an unique refractive index (RI) value for a healthy person. A change in the RI value is identified when a person gets infected with some disease or disorder. This study presents the scope of body fluid testing through spectroscopy analysis and RI sensing for biomedical applications. Photonic crystal fiber (PCF) based biosensors have revolutionized the sensor industry. Since they are susceptible to various factors and can be used for multiple body fluid analysis, thus, this work presents a brief background of spectroscopy measurement of liquid analytes and biosensor modeling.