Abstract
A key requirement for the development of proteins for use in nanotechnology is an understanding of how individual proteins bind to other molecules as they assemble into larger structures. The introduction of labels to enable the detection of biomolecules brings the inherent risk that the labels themselves will influence the nature of biomolecular interactions. Thus, there is a need for label-free interaction and adsorption analysis. In this and the following chapter, two biosensor techniques are reviewed: surface plasmon resonance (SPR) and the quartz crystal microbalance (QCM). Both allow real-time analysis of biomolecular interactions and both are label-free. The first of these, SPR, is an optical technique that is highly sensitive to the changes in refractive index that occur with protein (or other molecule) accumulation near an illuminated gold surface. Unlike QCM (Chapter 18) SPR is not affected by the water that may be associated with the adsorbed layer nor by conformational changes in the adsorbed species. SPR thus provides unique information about the interaction of a protein with its binding partners.
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Fee, C.J. (2013). Label-Free, Real-Time Interaction and Adsorption Analysis 1: Surface Plasmon Resonance. In: Gerrard, J. (eds) Protein Nanotechnology. Methods in Molecular Biology, vol 996. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-354-1_17
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DOI: https://doi.org/10.1007/978-1-62703-354-1_17
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Publisher Name: Humana Press, Totowa, NJ
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