2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/167201We describe two different modes for electronically detecting an adsorbed molecule using a nanoscale transistor. The attachment of an ionic molecular target shifts the threshold voltage through modulation of the depletion layer electrostatics. A stronger bonding between the molecule and the channel, involving actual overlap of their quantum mechanical wavefunctions, leads to scattering by the molecular traps that creates characteristic fingerprints when scanned with a backgate. We describe a theoretical approach to model these transport characteristics.11 pages, 5 figuresMesoscale and Nanoscale PhysicsMaterials Sciencetext