University libraries occupy a prominent place in today's society. Its scope and the role it plays in favor of scientific, technological, cultural and social development are directly related to the role of the university in society as a catalyst and diffuser of scientific knowledge arising from the contributions of researchers, teachers and students. As universities are often the center of scientific research and studies, it is common to find scientific research in their libraries.
As spaces for the dissemination of knowledge par excellence, university libraries, as well as all other teaching units information, have evolved over time to meet not only the public's information needs, but also increasingly connected.
Passive diffusion is a form of passive transport and a type of diffusion by which particles from a high concentration gradient passes through a biological membrane to a low concentration gradient. Diffusion, or simple diffusion on the other hand, is the passage of molecules without the need of a membrane.
