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- W4367294576 abstract "Enzymes are typically studied in bulk solution, but confined environments such as droplets made by electrospray ionization may more closely mimic the natural environment inside cells. Electrospray forms droplets of various sizes, which makes it difficult to quantify how droplet size affects reaction rates. Jeffrey E. Dick and coworkers at the University of North Carolina at Chapel Hill have used gold microelectrodes to electrochemically measure reaction rates of an enzyme in aqueous nanodroplets, enabling them to see how the rates are affected by droplet size ( Proc. Natl. Acad. Sci. U.S.A. 2021, DOI: 10.1073/pnas.2025726118 ). As a model system, they used a flavin adenine dinucleotide–dependent glucose dehydrogenase in a 1,2-dichloroethane emulsion. Individual nanodroplets adsorb to the microelectrode, whose electric field drives the enzymatic reaction via the oxidation of ferrocyanide to ferricyanide, which in turn delivers electrons for enzymatic glucose oxidation and gets reduced back to ferrocyanide. The cycle generates a" @default.
- W4367294576 created "2023-04-29" @default.
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- W4367294576 date "2021-06-21" @default.
- W4367294576 modified "2023-09-23" @default.
- W4367294576 title "Nanodroplets accelerate enzyme rate" @default.
- W4367294576 doi "https://doi.org/10.1021/cen-09923-scicon8" @default.
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