WebDetermination of Molecular Configuration by Debye Length Modulation Aleksandar Vacic 1, Jason M. Criscione 2, Nitin K. Rajan 4, Eric Stern 5, Tarek M. Fahmy 2,3, Mark A. Reed 1,4 Device Solution Gating and Transconductance Figure S1 BioFET gating. Drain current and transconductance of a nanoribbon bioFET versus WebJan 1, 2024 · Moreover, the combined use of MoS 2 /Graphene efficiently suppresses the non-ideal effects introduced by Debye shielding and it also reduces the noises introduced by water molecules. Charge shielding or Debye screening effect is nothing but the shielding of biomolecular charges by the opposite ions in the solutions [42], [43], [44].
Beyond the Debye length in high ionic strength solution
WebJul 1, 2024 · The graphene solution-gated field effect transistor (G-SgFET) based biosensors are inherited from metal-oxide-semiconductor field effect transistor (MOSFET) ... The aptamer is a smaller molecule beyond the Debye screening length , it can produce charge injection into the cross-linked TAP/rGO channel ... WebJan 3, 2012 · Nanosensors based on the unique electronic properties of nanotubes and nanowires offer high sensitivity and have the potential to revolutionize the field of Point-of-Care (POC) medical diagnosis. The direct current (dc) detection of a wide array of organic and inorganic molecules has been demonstrated on these devices. However, sensing … how is ethanol used by humans
Debye length - Wikipedia
WebDec 27, 2024 · Electrolyte screening is well known for its detrimental impact on the sensitivity of liquid-gated field-effect transistor (FET) molecular sensors and is mostly … WebAug 25, 2024 · Debye screening is particularly severe as the effective distance for charge detection in physiological conditions (100–200 mM ionic strength) is on the order of 1 nm. This makes the direct detection of large analyte molecules such as proteins extremely difficult, given the fact that the size of typical antibody receptor molecules is already … WebJan 7, 2024 · However, short Debye screening length in highly ionic physiological solutions remains the main obstacle for bioFET realization. This challenge becomes considerably … how is ethanol used as a fuel