EMU: Acquisition of a Variable Pressure Scanning Electron Microscope for elemental mapping of different matrices in geological, environmental and agronomic analyzes

• Grant number: 23/17432-2
• Support Opportunities: Research Infrastructure Program - Small Medium Sized
• Start date: September 01, 2024
• End date: August 31, 2027
• Field of knowledge: Agronomical Sciences - Agronomy - Soil Science
• Principal Investigator: Tiago Osório Ferreira
• Grantee: Tiago Osório Ferreira
• Host Institution: Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Universidade de São Paulo (USP). Piracicaba , SP, Brazil
• Associated researchers: Amanda Duim Ferreira ; Paulo Sergio Pavinato

Abstract

The project proposes acquiring a Variable Pressure Scanning Electron Microscope (VPSEM) to enhance research in the fields of Agricultural and Environmental Sciences in São Paulo. Since the 1940s, scanning electron microscopy (SEM) has been essential for studying soils and sediments, becoming a crucial scientific tool. The VPSEM, a recent technological evolution, offers significant advantages by operating under variable pressures without the need for sample dehydration or conductive coating, thus reducing the cost of analysis, time spent, and enabling a greater diversity of matrices to be analyzed (e.g., undisturbed samples, wet samples). The lead researcher, an Associate Professor II in Soil Science at the Luiz de Queiroz College of Agriculture, has extensive experience in managing multi-user laboratories. Under his leadership, various pieces of equipment have been acquired through FAPESP funding, expanding the analytical capacity of the Soil Geochemistry laboratory. The VPSEM will allow more efficient and detailed analyses, eliminating the need for pre-treatment and conductive coating. Furthermore, its ability to examine wet samples without prior dehydration is crucial for preserving natural characteristics, benefiting studies in saturated soils, biological tissues, and various other applications. Potential applications include studies in soil physics and conservation, pedology, mineralogy, geochemistry, geoprocessing, organic matter, biology, soil quality, soil chemistry, fertility, and plant nutrition. The VPSEM will open new perspectives in ongoing research, enabling more precise analyses, cost reduction, and advances in understanding complex processes. Expected outcomes include the production of high-quality scientific knowledge, contributing to publications, conferences, and academic events. The partnership with the Center for Carbon Research in Tropical Agriculture (CCARBON) will strengthen the relevance of the VPSEM, benefiting not only the graduate program in Soils and Plant Nutrition but also contributing to the advancement of environmental studies. The acquisition of the VPSEM not only addresses specific research demands but also represents a strategic investment to consolidate São Paulo as a hub of innovation in Agricultural Sciences. The project aims not only to boost scientific research but also to contribute to the training and qualification of researchers, promoting scientific excellence and reducing dependence on foreign research. (AU)