In studies conducted by Fontana et al. (1990) and Mayall et al. (1990) on nanocellulose product called BioFill®, it proved to be a very successful wound covering for skin problems such as burns and chronic ulcers. BioFill® was also shown to be more effective than other skin treatments. Another nanocellulose product called XCell, which is manufactured by Xylos Corporation, was used in a study conducted by Alvarez et al. 2004). In this study, the XCell dressing was used to treat patients suffering from chronic venous ulcers. Nanocellulose proved to be very effective in promoting autolytic debridement, reducing pain, and accelerating granulation, all of which are important for proper wound healing.