✦ LIBER ✦
Superimposed nanostructured diffraction gratings as high capacity barcodes for biological and chemical applications
✍ Scribed by S.W. Birtwell; G.S. Galitonov; H. Morgan; N.I. Zheludev
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 710 KB
- Volume
- 281
- Category
- Article
- ISSN
- 0030-4018
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✦ Synopsis
We describe a new non-contact high capacity optical tagging technique for bead based assays, based on the use of nanostructured barcodes. The tags are generated from a number of superimposed diffraction gratings. With one-dimensional diffraction, capacity for up to 68,000 distinguishable tags has been demonstrated, with a theoretical capacity of up to 10 9 tags. Extension into two dimensions increases this theoretical limit to 10 21 tags.