Fig. 3
From: Recovery of platinum(0) through the reduction of platinum ions by hydrogenase-displaying yeast
Platinum reduction by hydrogenase-displaying yeasts. a The ratio of platinum decrease in reaction solutions after the reduction experiment was calculated by comparing the platinum concentrations in the supernatant before and after the reduction. Data represent the mean ± SD of three independent experiments. b Microscopic observation of black precipitates produced after the reduction experiment