Table 4.
Biomarker/Analyte | Enzymes | Application/Condition | Biofluid | Type of Sensor |
---|---|---|---|---|
Metabolites | ||||
Glucose | Gox/GDH/CDH | Diabetes | Blood, saliva, sweat | Wearable |
Lactate | LOx/LDH | Hypoxia | Blood, saliva, sweat | Wearable |
Cholesterol | ChOx/ChDH | Atherosclerosis/heart failure | Blood | Implantable |
Ketone bodies | 3-HBDH | Diabetes | Blood | Implantable |
Uric acid | Uricase | Renal syndrome | Blood, saliva | Wearable |
Creatinine | SOx | Chronic kidney disease | Blood, saliva | Wearable |
Sarcosine | SOx | Prostate Cancer | Blood, urine | Implantable |
Bilirubin | BOx | Jaundice/Kernicterus | Blood | Implantable |
Neurotransmitters | ||||
Glutamate | GlOx | Neurodegenerative diseases | Brain | Implantable |
Acetylcholine | AChE-Choline oxidase | Neurodegenerative diseases | Blood | Implantable |
Other analytes | ||||
Levodopa | Tyrosinase | Parkinson treatment | Blood | Implantable |
Alcohol | ADH/AOx | Alcohol abuse | Blood | Wearable |
GOx: glucose oxidase; GDH: glucose dehydrogenase; CDH: cellobiose dehydrogenase; LOx: lactate oxidase; LDH: lactate dehydrogenase; ChOx: cholesterol oxidase; ChDH: cholesterol oxidase; 3-HBDH: 3-hydroxybutyrate dehydrogenase; SOx: sarcosine oxidase; GlOx: glutamate dehydrogenase; AChE: acetylcholinesterase; ADH: alcohol dehydrogenase; AOx: alcohol oxidase.