Trinity Scientists Discover Method to ‘Grow’ Nano-wires from Common Table Salt

Posted on: 27 August 2013

Researchers from the School of Chemistry, Trinity College Dublin, have discovered for the first time that tiny nano-wires can be ‘grown’ from common table salt (sodium chloride).

The researchers demonstrated that you can use chemical procedures to generate soft material in a gel form, named a supramolecular polymeric gel, which can then be used as a ‘garden’ or a platform for growing new structures.

Speaking about the significance of this discovery, lead author, Professor Thorri Gunnlaugsson of the Trinity Biomedical Science Institute said, “Whereas conducting wires are of enormous importance in the development of next generation electronic devices, our ionic nano-wires may well create opportunities for the development of novel ion-bridges in electrochemical and biological cells. Moreover, the possibility to grow such materials and possibly harvest them in the future could have a major role in future technologies.”

The growth of proteins and organic structures from gel templates has been established in the past, for example for the pharmaceutical sector. These materials have been used to generate crystals of controlled size and form for use, for example, in X-ray crystallography.

Professor Gunnlaugsson continued, “The application of this process in growing wires has yet to be demonstrated which makes this a very exciting discovery, opening up a new avenue of research for our researchers and others.”

The work was recently published in the prestigious and high-impact nano-journal of the American Chemical Society, ACS Nano (ACS Nano, 2013, 7, 4838-4845, DOI: 10.1021/nn305813y) and is available here.
The research was headed by Professor Thorri Gunnlaugsson at the Trinity Biomedical Science Institute (TBSI), and Professor John Boland former Director of the Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), in collaboration with Dr. Oxana Kotova and Markus Boese from Trinity College Dublin and Dr. Ronan Daly, Department of Engineering at University of Cambridge. The research was funded by research grants from Science Foundation Ireland.

An article on this research was recently featured in the Irish Times and is available here:  http://www.irishtimes.com/news/science/a-surprising-discovery-about-common-table-salt-1.1501195