## How to separate linear and ring-shaped molecules

What is the difference between linear chains and rings composed of the same material? The molecular building blocks are identical, but from a mathematical point of view the two structures have distinct topologies, namely ring and linear chain. This difference is readily recognizable on a macroscopic scale, as for example a golden ring and a gold bar, but represents a tricky task on the microscopic scale. The physicists Lisa Weiss and Christos Likos of the University of Vienna and Arash Nikoubashman of the Johannes-Gutenberg University of Mainz investigated strategies to separate nano- and microparticles of distinct topology. Their results are published in the high-impact journal ACS Macro Letters.

### How to separate linear and ring-shaped molecules

What is the difference between linear chains and rings composed of the same material? The molecular building blocks are identical, but from a mathematical point of view, the two structures have ...

**Wed 6 Dec 17** from Phys.org

Nanomaterials: How to separate linear and ring-shaped molecules, Wed 6 Dec 17 from ScienceDaily

Nanomaterials: How to separate linear and ring-shaped molecules, Wed 6 Dec 17 from Eurekalert

Nanomaterials: How to Separate Linear and Ring-Shaped Molecules, Wed 6 Dec 17 from Newswise

### Innovative Strategy for Isolating Ring-Shaped Molecules from Linear Ones

The distinction between rings formed of the same material and linear chains is that although the molecular building blocks are the same, from a mathematical point of view, topologies of the ...

**Thu 7 Dec 17** from AZoNano

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