The Grupo de Desarrollo de Materiales y Estudios Ambientales GDMEA (Materials Development and Environmental Studies MatDES) belongs to the Universidad de la República (UdelaR), and works within the Departamento de Desarrollo Tecnológico DDT from Centro Universitario Regional del Este (CURE), Rocha and in the Cátedra de Radioquímica, Departamento Estrella Campos, Facultad de Química, Montevideo.
GDMEA gathers, in the East Region and in the Facultad de Química, undergraduate and graduate teaching, human resources training, research and technologic services in Materials Science and Technology and in Chemistry and Radiochemistry production and contamination.
GDMEA develops materials for technologic applications: crystals, crystalline films and glasses, such as heavy metal halides crystalline films (HgI2, PbI2, BiI3, HgBr2), compound semiconductor nanostructures (HgI2, PbI2, BiI3, HgS, BiSI) and glass ceramics from boric glasses. Fundamental research aspects are considered, in nucleation (of compound semiconductors oriented onto amorphous substrates, of glass crystallization), in coalescence and synthesis mechanisms, and in compound semiconductor nanostructures crystalline phases. Moreover, technological aspects are considered in the search for applications of materials for radiation detection for counting applications, spectrometry, dosimetry and imagenology of X and gamma radiation, as well as polymer-inorganic solar cells and in spectral converters for Si solar cells.
Furthermore, GDMEA works in environmental radioactive contamination determination, especially due to the existence of black sand deposits that contain uranium and thorium (and the decay products from their respective natural radioactive series) present in the East Region. Contamination measurements are performed on alfa and beta emitters, as well as spectrometry on gamma and alfa emitters, not only natural but anthropogenic; in environmental samples, water and consumer products.
The infrastructure, equipment, human resources and experience of GDMEA enables it to widen its horizons to new projects, involving agents of the Manufacture Sector in collaborations and other researchers from CURE and UdelaR, for instance, in sediments geochronology, manufacture studies (especially regarding raw materials from the East Region), and in studies of chemistry and radiochemistry contamination in different products and environments.