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- Title
DNA detection by THz pumping.
- Authors
Chernev, A.; Bagraev, N.; Klyachkin, L.; Emelyanov, A.; Dubina, M.
- Abstract
DNA semiconductor detection and sequencing is considered to be the most promising approach for future discoveries in genome and proteome research which is dramatically dependent on the challenges faced by semiconductor nanotechnologies. DNA pH-sensing with ion-sensitive field effect transistor (ISFET) is well-known to be a successfully applied electronic platform for genetic research. However this method lacks fundamentally in chemical specificity. Here we develop the first ever silicon nanosandwich pump device, which provides both the excitation of DNA fragments' self-resonant modes and the feedback for current-voltage measurements at room temperature. This device allows direct detection of singlestranded label-free oligonucleotides by measuring their THz frequency response in aqueous solution. These results provide a new insight into the nanobioelectronics for the future real-time technologies of direct gene observations.
- Subjects
SEMICONDUCTOR detectors; NUCLEOTIDE sequencing; ION sensitive field effect transistors; ELECTRIC potential measurement; SILICON; OLIGONUCLEOTIDES
- Publication
Semiconductors, 2015, Vol 49, Issue 7, p944
- ISSN
1063-7826
- Publication type
Article
- DOI
10.1134/S1063782615070064