This paper presents a case study of the interaction between nanoelectrodes and dielectric nanoparticles possibly representative of biomolecules in a simple cylindrical capacitive biosensor. The small signal admittance change due to the insertion of the biomolecule in the biosensor electrolyte is studied as a function of the position, aspect ratio and charge of the biomolecule and of the signal frequency. Results suggest clear advantages in operating the biosensor beyond the electrolyte cutoff frequency.
Efficient DC and AC simulation of nanoelectrode-nanoparticle interactions in capacitive biosensors
PITTINO, Federico;SELMI, Luca
2012-01-01
Abstract
This paper presents a case study of the interaction between nanoelectrodes and dielectric nanoparticles possibly representative of biomolecules in a simple cylindrical capacitive biosensor. The small signal admittance change due to the insertion of the biomolecule in the biosensor electrolyte is studied as a function of the position, aspect ratio and charge of the biomolecule and of the signal frequency. Results suggest clear advantages in operating the biosensor beyond the electrolyte cutoff frequency.File in questo prodotto:
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