At the end of the article, before the list of references, the contribution made by each author to the article proposed for publication must be included.  

The list of authors must contain everyone who have conferring intellectually to the development of the work. Additions limited to the search or processing of data, the preparation of graphs or figures, are not sufficient to appear as an author. In that case, the authors may indicate said participations and, where appropriate, make the corresponding thanks. 

At the time of sending the article, the contributions of each author must be indicated, considering the following items: 

• Conception and design of the article.
• Methodological development.
• Data mining, analysis and interpretation.
• Software modeling (if applicable).
• Writing the original draft.
• Review and final editing of the text.
• Preparation of supplementary materials (if applicable). 

Mundo Nano. Interdisciplinary Journal in Nanosciences and Nanotechnology declines any responsibility for possible conflicts arising from the authorship of the works it publishes. By sending the article, the authors implicitly accept that they have read this text in its entirety and agree with its content. 

In the event of a request to change the authorship of a manuscript received or an article already published, Mundo Nano. Interdisciplinary Journal in Nanosciences and Nanotechnology will follow the decision tree, recommended by COPE: http://publicationethics.org/files/Spanish%20%281%29.pdf