High-sensitive Label-free Biosensors Based on Carbon Nanotube Field-effect Transistors Modified with Aptamers
We have fabricated label-free protein biosensors based on aptamer-modified carbon nanotube field-effect transistors (CNTFET) for detection of immunoglobulin E (IgE). Since aptamers are artificial oligonucleotides, the aptamers are smaller in size than the Debye length. [...]