TY - JOUR
T1 - Scaling and crossovers in molecular transport in nano-fluidic systems
AU - Pimpinelli, Alberto
AU - Ferrari, Mauro
AU - Grattoni, Alessandro
PY - 2013/9/9
Y1 - 2013/9/9
N2 - A simple, analytically soluble model for transport in nanoconfined systems is presented here. The effect of confinement is introduced as a dependence of the solute diffusivity on the concentration, channel size, and intermolecular interactions. We apply the model to the description of molecule and nanoparticle release from devices consisting of slit-nanochannel membranes. We show that, in general, the cumulative amount of analyte released obeys a scaling form as a function of time. Additionally, the model is extended to more complicate situations in which the physico-chemical characteristics of membrane and solvent vary with time, and crossovers between different regimes appear.
AB - A simple, analytically soluble model for transport in nanoconfined systems is presented here. The effect of confinement is introduced as a dependence of the solute diffusivity on the concentration, channel size, and intermolecular interactions. We apply the model to the description of molecule and nanoparticle release from devices consisting of slit-nanochannel membranes. We show that, in general, the cumulative amount of analyte released obeys a scaling form as a function of time. Additionally, the model is extended to more complicate situations in which the physico-chemical characteristics of membrane and solvent vary with time, and crossovers between different regimes appear.
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U2 - 10.1063/1.4819156
DO - 10.1063/1.4819156
M3 - Article
AN - SCOPUS:84884224829
SN - 0003-6951
VL - 103
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 11
M1 - 113104
ER -