Adapting to nanoscale events

Article Abstract:

The measurement of ionic transport through a single, atomic-scale pore in an insulating membrane can be used to identify organic molecules of relative molecular mass as low as 100. When linked with extremely sensitive semiconductor membranes, the membrane-pore system can amplify the currents on timescales aligned with the interaction times between the molecule and the pore. There are still many questions to be resolved relating to the ultimate abilities of single-channel pores in atomic-scale investigations of individual molecules.

Author: Branton, Daniel, Golovchenko, Jene
Molecular dynamics, Ionic mobility

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Evolution of nanoporosity in dealloying

Article Abstract:

Research is presented concerning the dealloying of silver from silver-gold alloys through the emersion of the alloy in nitric acid. The pattern formation process associated with nanoporosity in metals is discussed.

Author: Erlebacher, Jonah, Aziz, Michael J., Karma, Alain, Dimitrov, Nikolay, Sieradzki, Karl
Letter to the Editor, Porosity, Alloys

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Subjects list: Research
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