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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Glucose-sensitive inverse opal hydrogels: analysis of optical diffraction response.

A glucose-sensitive inverse opal hydrogel was synthesized through photopolymerization of 2-hydroxyethyl methacrylate and 3-acrylamidophenylboronic acid within the interstitial space of a dried poly(styrene) colloidal crystal template, followed by template removal. Charged complex formation between the phenylboronic acid functional group and the 1,2-cis-diol glucose resulted in reversible swelling of the inverse opal hydrogel, which was observed through shifts in the optical diffraction wavelength. The hydrogel was sensitive to glucose at physiological concentrations and ionic strength. The effects of phenylboronic acid concentration, ionic strength, and buffer pH on the equilibrium hydrogel swelling were also studied. The kinetics of hydrogel swelling was also examined, and it was found that the rate of diffraction shift matched well with diffusion-limited kinetics. Additionally, the diffraction response was compared with simulations using the scalar wave approximation and transfer matrix method.[1]


  1. Glucose-sensitive inverse opal hydrogels: analysis of optical diffraction response. Lee, Y.J., Pruzinsky, S.A., Braun, P.V. Langmuir : the ACS journal of surfaces and colloids. (2004) [Pubmed]
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