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Biosensing

Plasmons offer a helping hand

Nature Nanotechnology volume 5, pages 762–763 (2010)Cite this article

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Arrays of metallic nanostructures allow chiral biomolecules to be detected and characterized with increased sensitivity.

Some molecules can be superimposed onto their mirror images, but many are not symmetrical — they are chiral and come in left- and right-handed versions that often behave in different ways. For example, these versions, which are called enantiomers, can taste and smell differently. Moreover, chiral drugs can interact with the body in very different ways, with one enantiomer having beneficial effects whereas the other has no effect or, worse still, dangerous side effects.

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Figure 1: The PCM made by Kadodwala and co-workers3 is an array of gold gammadions (white shapes) on a glass substrate (grey square).

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Authors and Affiliations

  1. Romain Quidant and Mark Kreuzer are at ICFO - The Institute of Photonic Sciences, 08860 Castelldefels, Barcelona, Spain.,

    Romain Quidant & Mark Kreuzer

  2. Romain Quidant is also at the Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain. romain.quidant@icfo.es,

    Romain Quidant

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  1. Romain Quidant
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  2. Mark Kreuzer
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Quidant, R., Kreuzer, M. Plasmons offer a helping hand. Nature Nanotech 5, 762–763 (2010). https://doi.org/10.1038/nnano.2010.217

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  • DOI: https://doi.org/10.1038/nnano.2010.217

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