Nanogallery
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TODAY DECEMBER 12, 2018

NSQUID (nanowire superconducting quantum interference device)

n-SQUID (nanowire superconducting quantum interference device)
Nanowire superconducting: strands of DNA have been used as tiny scaffolds to create superconducting nanodevices that demonstrate a new type of quantum interference phenomenon.
Strands of DNA have been used as tiny scaffolds to create superconducting nanodevices that demonstrate a new type of quantum interference phenomenon. These nanowire quantum interference devices (NQIDs), which comprise a pair of suspended superconducting wires as thin as three to four molecular diameters (5 nm to 15 nm), could be used to measure magnetic fields and to map out the phase of the order parameter in regions of superconductivity.

1.D. Hopkins, D. Pekker, P. Goldbart, and A. Bezryadin, "Superconducting phase gradiometer made using DNA molecular templates", Science 308, 1762 (2005).
The cylindrical superstructures are composed of silver nanoparticles with V-shaped amphiphilic arms. The short rod-like and spherical assemblies are made of gold nanoparticles with the same V-shaped amphiphilic arms.  The self-assembly occurs upon slow addition of water to solution of nanoparticles in organic solvent called tetrahydrofuran. The resulting mixture is then dialyzed against pure water in order to remove organic solvent and obtain a pure aqueous solution of the superstructures (they remain in water without any precipitation, just like micelles).
Nanowerk Nanotechnology Portal
http://www.nanowerk.com

Nanohedron
http://www.nanohedron.com

Biomolecules
http://perso.curie.fr/Simon.Sc..


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