The GAROÉ^2 research project aims to develop novel miniaturized devices made from environmentally friendly materials, specifically metal-organic frameworks (MOFs), ionic liquids (ILs) and their derivatives, and hybrids and composites incorporating MOFs, ILs, and their derivatives. These miniaturized devices will be designed for integration into water environmental monitoring systems to determine persistent and emerging contaminants. The devices must exhibit adequate extraction efficiency, precision, sensitivity, and, in some cases, selectivity, while simultaneously demonstrating improved environmental performance compared to conventional analytical techniques used in most laboratories worldwide. This challenge falls within the framework of the European Union's Horizon 2020 program and the Spanish Science and Technology Strategy, and is expected to have a significant impact on society and the economy. The materials to be synthesized and characterized include MOFs with suitable stability in water and high affinity for specific analytes. Analyte-host interaction studies will also be conducted to aid in material design, and the synthesis of MOFs with improved results will be scaled up. ILs and their derivatives (IL-based surfactants, ionic liquid polymers, and magnetic ionic liquids) will be designed to ensure low cytotoxicity, and different strategies will be employed to increase the number of these materials, functionalized for specific extractions. Furthermore, a range of hybrid and composite materials will be prepared using MOFs, ILs and their derivatives, polymers, and nanomaterials to expand and enhance the extraction capabilities of the final product. Miniaturized devices will be designed with different geometries, depending on the extraction strategy (static, dynamic, automated, etc.), the nature of the material (MOFs, ILs and their derivatives, hybrid or composite materials, magnetic materials, etc.), and the nature of the contaminant (metals, organic molecules, volatile analytes, etc.). In some cases, the materials will need to be mounted on a specific support (biodegradable polylactic acid, silica, etc.). Furthermore, this miniaturization of the devices will require improvements to the associated methodologies to increase efficiency, optimize the use of toxic organic solvents, reduce waste, and make the entire integrated system sustainable. An interdisciplinary team will carry out this integrated research, with experts from different areas working toward a common goal: the development of microdevices based on novel materials for water quality monitoring. The expected impacts of this project include improvements to the local economy, increased public-private partnerships, and a strengthened research capacity at the University of La Laguna.