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Secrets of the first practical artificial leaf - Researchers report development of the first practical artificial leaf -- a milestone in the drive for sustainable energy that mimics the process, photosynthesis, that green plants use to convert water and sunlight into energy. The article notes that unlike earlier devices, which used costly ingredients, the new device is made from inexpensive materials and employs low-cost engineering and manufacturing processes. Reference: Daniel G. Nocera et al, Acc. Chem. Res., Article ASAP DOI: 10.1021/ar2003013