ORGANIC AND INORGANIC BIOMARKERS OF ATMOSPHERIC AEROSOLS FROM MARINE REGIONS. In this study, we overview the recent advancements in knowledge regarding organic and inorganic biomarkers of atmospheric aerosols from coastal zones and open marine areas. It deals with the interaction between the ocean and the atmosphere through their interface, the formation of a seawater microlayer (SML) and the exchange of a myriad of chemical compounds between those environmental compartments. We also discuss how marine aerosols (MAs) are intrinsically related to the global carbon cycle, influence the radiative budget of the Earth, and are related to global climate. At the end, we discuss the trends of new studies on the topic. REGIONS study areas interface SML (SML compartments MAs (MAs cycle Earth climate end topic

In 2002, the Brazilian Chemical Society have promoted several activities aiming to prepare a document to discuss the education in Chemistry in Brazil, the new model of research funding, the area situation and its perspectives. The document drew up diagnoses and brought up proposals that were organized into six mobilizing axes. Among its conclusions it was expected an alignment of scientific and technological research, considering the central role of Chemistry in solving problems and overcoming challenges affecting the education, full citizenship, climate changes, food production and quality, access to and quality of water, energy security, preservation of ecosystems and species, emerging diseases and quality of life. The current moment brings again challenges, imposed by a new technological generation, the transformations of the urban societies and by the commitment with a sustainable development. This article seeks to outline a panorama, using as background the Industry 4.0, the Society 5.0, the Sustainable Development Objectives, the creation of the EMBRAPII, the SENAI Institutes of Innovation and the role of the graduate programs in Chemistry, in order to construct a new agenda under the scope of the SBQ for the next 15 years.

Abstract Different polymeric matrices have been investigated for use in the development of biodegradable films. The incorporation of cellulose nanocrystals in such films has particularly attracted attention because of the potential for achieving improved properties of starch nanocomposites. In the present study, cellulose nanocrystals were extracted from coconut fibers and incorporated in cassava and potato starch films at different concentrations. The properties of the different nanobiocomposite films were comparatively evaluated, including their barrier and mechanical properties. All the films, regardless of the nanocrystal concentration, were found to exhibit low solubility in water, with increased moisture content particularly observed in the films with higher nanocrystal concentrations. The potato starch film with the lowest nanocrystal concentration was found to exhibit the best mechanical properties. The observations of this study indicated that the source of the starch and the nanocrystal concentration determined the properties of the nanobiocomposite films.