Greener Drug Development Made Possible with Nanotechology

Over the last five years, the Bionano group at the Nano-Science Center and the department of neuroscience and pharmacology at the University of Copenhagen (Denmark) has been working to characterize and test how molecules react, combine, and form larger molecules, which can be used in the development of new medicine.

The research was published October 30, 2011, in the journal Nature Nanotechnology. In the article, the investigators described that they are able to work with reactions that take place in very small volumes, specifically 10^-19 L. This is a billion times smaller than anyone has managed to work with before. Even more intriguing is the ability to do so in parallel for millions of samples on a single chip.

“We are the first in the world to demonstrate that it is possible to mix and work with such small amounts of material. When we reach such unprecedented small volumes, we can test many more reactions in parallel and that is the basis for the development of new drugs. In addition, we have reduced our use of materials considerably and that is beneficial to both the environment and the pocketbook,” said Prof. Dimitrios Stamou, who predicts that the method will be of interest to industry because it makes it possible to research drugs faster, less expensive, and greener.

Prof. Stamou and coworkers reached such small scales because they are working with self-assembling systems. Self-assembling systems, such as molecules, are biologic systems that organize themselves without outside control. This occurs because some molecules fit with certain other molecules so well that they assemble together into a common structure.

“By using nanotechnology we have been able to observe how specific self-assembling systems, such as biomolecules, react to different substances and have used this knowledge to develop the method. The self-assembling systems consist entirely of biological materials such as fat and as a result do not impact the environment, in contrast to the materials commonly used in industry today [e.g., plastics, silicon, and metals]. This and the dramatic reduction in the amount of used materials makes the technique more environment friendly, ‘greener,’” explained Dimitrios Stamou, who is part of the University of Copenhagen’s Synthetic Biology Center and director of the Lundbeck Center Biomembranes in Nanomedicine.

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