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Dr. Sam W. Birtwell

Former Project
Diffractive encoding of microparticles for chemical and biological assay applications

Short CV
Sam Birtwell began his studies as an undergraduate at the School of Physics and Astronomy, University of Southampton, from which he received a first class Master of Physics with Photonics in 2004. Then he continued working on research for his PhD at the same university. His work concerned the use of micro-diffractive elements to encode identification data into polymer microparticles, for use in DNA analysis and antibody detection.

Joint Articles

  1. Holographically encoded microparticles for bead-based assays
    S. W. Birtwell, S. Banu, N. I. Zheludev, and H. Morgan
    J. Phys. D: Appl. Phys. 42, 055507 (2009) doi: 10.1088/0022-3727/42/5/055507
  2. Diffractive micro bar codes for encoding of biomolecules in multiplexed assays
    G. R. Broder, R. T. Ranasinghe, J. K. She, S. Banu, S. W. Birtwell, G. Cavalli, G. S. Galitonov, D. Holmes, H. F. P. Martins, K. F. MacDonald, C. Neylon, N. Zheludev, P. L. Roach, and H. Morgan
    Anal. Chem. 80, 1902-1909 (2008) doi: 10.1021/ac7018574
  3. Superimposed nanostructured diffraction gratings as high capacity barcodes for biological and chemical applications
    S. W. Birtwell, G. S. Galitonov, H. Morgan, and N. I. Zheludev
    Opt. Commun. 281(7), 1789-1795 (2008)
    (special issue "Optics in Life Sciences") doi: 10.1016/j.optcom.2007.04.066
  4. Fabrication of diffraction-encoded micro-particles using nano-imprint lithography
    S. Banu, S. W. Birtwell, G. Galitonov, Y. Chen, N. Zheludev, and H. Morgan
    J. Micromech. Microeng. 17, S116-S121 (2007) doi: 10.1088/0960-1317/17/7/S08
  5. High capacity tagging using nanostructured diffraction barcodes
    G. S. Galitonov, S. W. Birtwell, N. I. Zheludev, and H. Morgan
    Opt. Express 14(4), 1382-1387 (2006) doi: 10.1364/OE.14.001382 - pdf
  6. Microfabricated barcodes for particle identification
    S. Banu, S. W. Birtwell, G. Galinatov, D. Holmes, N. Zheludev, and H. Morgan
    Proc. MME Europe 2005, 252-255 (2005)

Joint Conference Contributions

  1. Diffraction bar-codes as high capacity optical microtags for chemical and biological applications
    S. W. Birtwell, G. Galitonov, A. Whitton, H. Morgan, and N. Zheludev
    QEP-17 at Photon06, Manchester, UK, 4 - 7 Sep 2006
  2. Nano-imprinting lithography - a novel way to fabricate diffractive barcoded particles
    S. Banu, S. W. Birtwell, G. Galitonov, A. Whitton, Y. Chen, N. Zheludev, and H. Morgan
    MME 2006, Southampton, UK, 3 - 5 Sep 2006
  3. High capacity nano-optical diffraction barcode tagging for biological and chemical applications
    S. Banu, S. W. Birtwell, Y. Chen, G. Galitonov, H. Morgan, and N. Zheludev
    2006 NSTI Nanotech / Conference on Nano Electronics & Photonics, Boston, Massachusetts, USA, 7 - 11 May 2006
  4. Optical and impedance detection of DNA hybridisation on barcoded micro particles in a microfluidic device
    D. Holmes, A. Whitton, G. Cavalli-Petraglia, G. Galitonov, S. W. Birtwell, S. Banu, N. Zheludev, and H. Morgan
    2006 NSTI Nanotech / Conference on Nano Electronics & Photonics, Boston, Massachusetts, USA, 7 - 11 May 2006
  5. Microfabricated barcodes for particle identification
    S. Banu, S. W. Birtwell, G. Galitonov, D. Holmes, N. Zheludev, and H. Morgan
    16th MME MicroMechanics Europe Workshop, Goteborg, Sweden, 04 - 06 Sep 2005
    [Proc. of 16th MME MicroMechanics Europe Workshop, pp. 252-255]