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Surface plasmon optical study of the interfacial phase transition of elastinlike polypeptide grafted on gold
Biointerphases volume 3, pages 66–74 (2008)
Abstract
The conformational changes in elastinlike polypeptides (ELPs) grafted to a solid/solution interface via different architectures were studied using surface plasmon resonance spectroscopy and surface plasmon field-enhanced fluorescence spectroscopy (SPFS). SPFS provides a simple and convenient optical method to study the influence of the grafting method and the graft density on the conformational changes in ELPs at the solid-solution interface as a function of environmental variables. A typical response of the ELP, consistent with its stimuli responsiveness, was a gradual collapse upon increasing the ionic strength; this effect was inversely correlated with the surface graft density of the ELP.
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Xu, F., Joon, H.M., Trabbic-Carlson, K. et al. Surface plasmon optical study of the interfacial phase transition of elastinlike polypeptide grafted on gold. Biointerphases 3, 66–74 (2008). https://doi.org/10.1116/1.2965133
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DOI: https://doi.org/10.1116/1.2965133