This book provides an overview of the advances on nanostructured celullose from different obtaining forms: natural plants and bacterial microorganisms. It gives the reader an introduction of cellulose focusing in nanosize particles, its potential applications and future perspectives. The potential use of cellulose in the biomedical field is highlighted.

Neftali Lenin Villarreal Carreño is an Associate Professor at Federal University of Pelotas, Brazil. His reseach lines/area include nanomaterials, polymer composites, biomaterials, catalysis and carbon nanostructured surfaces.

Mabel Miluska Suca Salas is a postdoctoral fellow at the Federal University of Pelotas. Her main research lines/areas include biomaterials, tissue engineering and public health.

Ananda Morais Barbosa is a PhD student Federal University of Pelotas. She works on engineered nanomaterials for biomedical applications.

Susana C. M. Fernandes is a senior researcher at the Royal Institution of Technology in Stockholm. Her main research lines/areas include (i) extraction, characterization and valorisation of biomolecules from oceanic biomass; (ii) introduction of new functionalities by chemico-enzymatic modification to sugar-based biopolymers; (iii) cellulose and chitin nano-objects for sustainable bioactive templates design with advanced mechanical properties and functionalities.