In another recent study, a research team led by Kim et al. developed a highly sensitive sensing system for identifying the fundamental biomarker of Alzheimer's in blood serum. The team utilized closely packed single-walled carbon nanotube (SWCNT) thin films as a transducer to construct the sensing system. Compared to randomly distributed carbon nanotubes, this aligned carbon nanotubes-based nanosensor reduces the tube-to-tube interface, resulting in an improved sensor sensitivity. The team found that the sensor exhibited a higher sensitivity thsan that of traditional carbon nanotube sensors. After evaluating the concentrations of the four AD biomarkers, patients with AD could be protected with safety controls, demonstrating an overall sensitivity of 90%, 90% selectivity, and 88% average precision. The team's nanosensor architecture holds significant promise in the early detection and diagnosis of AD, allowing for the identification of biomarkers in real-time and potentially preventing or slowing the progression of the disease. Copyright 2020 Springer Nature and Creative Commons.