Abstract
Gold nanochannels were prepared by plating electrolessly gold within the pores of polycarbonate lter membranes (PCTMs). These PCTMs with cylindrical Au nanotubules of uniform radius and high density can be used as a convenient model system to investigate the mechanism of particle transport through nanotubules. The transport properties of phenol through a modied Au nanotubule membrane were studied. The permeate ux of phenol transport through the nanotubule membrane can be spatially and temporally manipulated by controlling the magnitude and direction of the current applied across the separation cell, and the electroosmotic ow (EOF) was investigated by measuring the ux of phenol across the PCTM. The current values and modication of nanotubules aected the EOF generated inside the nanotubules. The permeation ux of phenol through the nanotubule membrane can be easily changed by modifying the Au nanotubules with Cl or L-cysteine, and changing the direction of the applied current and the pH of the buer solution used in mass transport experiments.
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