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| - Enhanced Rates of Electrolytic Styrene EpoxidationCatalyzed by Cross-Linked Myoglobin-Poly(l-lysine) Filmsin Bicontinuous Microemulsions
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| - Redox proteins attached to surfaces designed for biocatalysis hold promise for future clean syntheticroutes. It is advantageous for these biocatalysts to operate in low-toxicity fluids with a high capacity todissolve reactants. Here we report cross-linked films of myoglobin (Mb) and poly(l-lysine) (PLL) chemicallyattached to oxidized carbon cloth cathodes that in microemulsions feature the protein in a water-rich filmenvironment with reactant in an oil-rich environment. These cross-linked Mb/PLL films were the moststable in microemuslions and had the largest turnover rates for epoxidation of styrene compared to lightlycross-linked or uncross-linked Mb/poly(styrene sulfonate) films. Up to 40-fold larger turnover rates werefound in bicontinuous microemulsions compared to oil-in-water microemulsions and micelles. Enhancedturnover rates are correlated with up to 10-fold faster mass transport of solutes in the oil phases of thebicontinuous fluids.
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