Preface.- Conclusions and Recommendations.- Nanotechnologies: Overview and Issues; A.D. Maynard.- Biokinetics and Effects of Nanoparticles; G. Oberdoerster.- Nanoparticle Exposure and Systemic/Cariovascular Effects; P. Simeonova.- Pulmonary Effects of Single Walled Carbon Nanotubes: Inflammatory Response, Oxidative Stress/Signaling, and Recognition by Macrophages; V.E. Kagan et al.- Inhalation of Nanomaterials, Short Overview of the Local and Systemic Effects; P.H.M. Hoet et al.- Interactions of Organic Compounds with Mineral Particles, and the Detection of Cell Components in Bacteria by Spectroscopic Methods - Connections to Nanoscience; Z. Filip, K. Demnerova.- Toxicity of Polymeric Nanoparticles with Respect to their Application as Drug Carriers; T. Chervenkov et al.- Risk Assessment Approaches and Research Needs for Nanomaterials: An Examination of Data and Information from Current Studies; E.D. Kuempel et al.- Risk Assessment Related to Nanotechnology: Environmental and Policy Making; L.-D. Galatchi.- Needs for Regulations, Training and Education for Health Protection and Environmental Security of Nanotechnologies; N. Opopol.- Bioethics and Legal Aspects of Potential Health and Environmental Risks of Nanotechnology; D. Solodoukhina.- Nanotechnology - The Frame of Worker Training, Public Education, and Participation; F. Kaloyanova.- Use of Membrane Filtration for Water Treatment with Examples from the Republic of Macedonia; M. Kochubovski.- Current State of Nano-Structured TIO2 Based Catalysts: Preparation Methods; R. Tomovska et al.- Evaluation of Mean Diameter Values Using Scherrer Equation Applied to Electron Diffraction Images; V. Ciupina et al.- Occupational Risk Assessment and Management: Focus on Nanomaterials; N.F. Izmerov et al.- Approaches in Environmental Ecotoxicology; K. Demnerova et al.- Particle Exposure through the Indoor Air Environment; G. Dura, B. Szalay.-