This work presents the synthesis of polyallylamine (PAl) particles starting from allylamine using resistive-inductive electrical glow discharges. PAl particles obtained directly from allylamine had not been reported before, only in combination with other components. PAl has a great number of applications as a biomaterial, due among other things to its great amine content. The particles were synthesized with a spherical profile with diameter in the 47-2900 nm range and were eroded with an Argon beam in a X-ray photoelectron spectrometer to calculate the amine content inside. Primary (4%-10%), secondary (38%-49%), tertiary (7%-31%), and unsaturated (22%-41%) amines were found in the particles as a function of the power of synthesis. Analyzing from the surface to the interior of the particles, the results showed that secondary amines slightly reduce, and tertiary amines increase. The electric conductivity of the particles was calculated as a function of temperature in the 10 À8 -10 À4 S/m interval with a semiconductor behavior increasing as the diameter reduces.The electrical properties are important in the application of these particles in the central nervous system.

Se agradece a todos los colaboradores que se desempeñan en el área de NyN, por la información proporcionada para la elaboración de este documento. Investigadores del ININ en NyN: RESUMEN: Este documento describe brevemente el origen y objetivos del Instituto Nacional de Investigaciones Nucleares (ININ), así como un panorama general de sus actividades dedicadas al avance de la nanociencia y nanotecnología (NyN), enmarcadas en las líneas de investigación institucionales a través del desarrollo de diversos proyectos. Se incluyen las líneas de investi gación, contribuciones, patentes y principales logros en este campo obtenidos a través de los años. También se presenta la infraestructura con que se cuenta para llevar a cabo las investiga ciones sobre nanomateriales y sus aplicaciones orientadas a áreas de energía, salud y medio ambiente. Se enfatiza la importancia del trabajo de colaboración nacional e internacional y de la formación de recursos humanos. Finalmente, se presentan las perspectivas de desarrollo en esta área en nuestra Institución.ABSTRACT: This document briefly describes the origin and goals of the National Institute of Nuclear Research (ININ) and a general view of its activities dedicated to the development of na noscience and nanotechnology, within the frame of the institutional research lines through the development of several projects. Research lines, contributions, patents and main achievements obtained through the years in this field are included. Also, the infrastructure available to per form research on nanomaterials and their applications focused on energy, health and environ ment. The importance of national and international collaborative work and human resources training are emphasized. Finally, the development research prospects on this field in our Insti tution are presented.