Experimental procedures, characterization data, figures, etc. that are essential for understanding the main points of the publication but that could be considered supplementary or cannot be included in the main manuscript for space reasons should be provided as Supporting Information.
This material is published simultaneously with the article. Reference to the Supporting Information should be made in the relevant sections of the article. The scientific quality of the Supporting Information should be of the same standard as that of the manuscript. It should start with a Table of Contents, and the relationships between the main article and the Supporting Information should be apparent.
At the end of the manuscript, the following section has to be included:
Supporting information is available online. Correspondence and requests for materials should be addressed to X.X." (X.X. are the initials of the corresponding author)