Cohn R.W. – TechConnect Briefs

Viscosity measurements of PEO solutions by AFM with long nanowires

Hosseini M., Yazdanapanah M.M., Siddique S., Cohn R.W., University of Louisville, US

We recently demonstrated that long metal nanoneedles grown on atomic force microscope (AFM) probes can give very clear measurements of the surface tension, evaporation rate and viscosity of simple liquids. However, in the case of [...]

Biopolymerization-Driven Self-Assembly of Nanofiber Air-Bridges

Pabba S., Fasciotto B.H., Yazdanapanah M.M., Dobrokhotov V.V., Cohn R.W., University of Louisville, US

Many proteins polymerize in vivo to form nanometer diameter fibers, including actin and fibrin. In this study we consider the application of filament-forming proteins to nanostructure fabrication. Specifically, protein fibers are induced to polymerize and [...]

Room Temperature Growth of Single Intermetallic Nanostructures on Nanoprobes

Yazdanpanah M.M., Dobrokhotov V.V., Safir A., Pabba S., Rojas D., Cohn R.W., University of Louisville, US

It is possible to grow single crystals directly on nanoprobes, such as atomic force microscope (AFM) probes, tungsten needles and nanotapered glass pipettes. We have grown single Ag2Ga nanoneedles and PtGa6 nanoplates/blades from supersaturated melts [...]