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 | | Very Large 2D Superlattice Domain of Gold Nanoparticles | | The largest (19500x2037 pixels, 360,000 nanoparticles) 2D superlattice domain of 18 micrometer length and 8.8 nm lattice constant in a millimeter-scale monolayer film of hexagonal-close-packed gold nanoparticles. For details, check the J. Mater. Chem. 2011 paper (http://dx.doi.org/10.1039/C1JM11671A/) or the Eah group at RPI (http://www.rpi.edu/~eahs/). Also available at YouTube (search keyword: EahLab). | | | Added: 10 months ago, in category: Data Visualization, My Research | | Uploaded by: Sang-Kee Eah | | Comments: 0 / Views: 286 / Avg Rating: Not rated | | | |
 | | Hindered rolling of carbon nanotubes | | When sliding on a nanotube along its axis and perpendicular to it, there is a large friction difference that origins in the soft lateral distortion of the tube. In the first part of the movie, an AFM tip is scanning transversely across a chiral nanotube. There is a shape distortion accompanied by an attempted lateral rolling and a large frictional force. In the second part, the tip is scanning longitudinally. There is a slight swaying of the tube due to the chirality, with a friction of about 1/2 of the transverse one. In the third part, as the outermost tube is nonchiral, no swaying of the tube is observed, corresponding to a much smaller friction. Simulations agree with the experimental results of the friction anisotropy, that can be used as a way to control the assembly of nanotubes on a surface for nanoelectronics, sensors and other applications. Our study can be found at 10.1038/nmat2529. | | | Added: 2 years ago, in category: Current Contest - What is Nano? Part II, Data Visualization, My Research | | Uploaded by: Xiaohua Zhang | | Comments: 0 / Views: 130 / Avg Rating: 4.00 / Weighted Rating : 4.37 | | | |
 | | How does salt dissolve in water? | | Here is the answer to how salt dissolves in water from computer simulations on some of the world's largest supercomputers. The large (yellow) chlorine ion at the corner of the crystal leaves first, as it leaves in becomes increasingly coordinated (bonded) to water molecules in the aqueous film above. | | | Added: 2 years ago, in category: Current Contest - What is Nano? Part II, Data Visualization, My Research | | Uploaded by: Angelos Michaelides | | Comments: 1 / Views: 791 / Avg Rating: 4.00 / Weighted Rating : 4.10 | | | |
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 | | A Theoretical Comparison of Self-Assembling α- and β-Peptide Nanostructures: Toward Design of β-Barrel Frameworks | | In this video Dr. Tamás Beke describes how they compared structural and energetic properties of tubular systems composed of natural and nonnatural amino acids. The work was performed in the MTA-ELTE Protein Modeling Group (Group Leader: Prof. András Perczel)
The paper is published in ACS Nano:
Beke et al., 2008, 2, 545-553 available via this DOI.
| | | Added: 4 years ago, in category: Data Visualization, My Research | | Uploaded by: Tamas Beke | | Comments: 0 / Views: 184 / Avg Rating: 3.00 / Weighted Rating : 1.00 | | | |
 | | Scanning Electron Microscopy of Nanoscale Chemical Patterns | | C. Srinivasan highlights the importance of astute SEM metrology in chemically nano-patterned materials. See also the ACS Nano article by Srinivasan et al. available at http://dx.doi.org/10.1021/nn7000799 | | | Added: 4 years ago, in category: Data Visualization, My Research | | Uploaded by: George Chriss | | Comments: 0 / Views: 393 / Avg Rating: 3.00 / Weighted Rating : 1.00 | | | |
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