Browsing by Subject "Controlled release"

Now showing 1 - 2 of 2
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    Molecular release by the rotaxane and pseudorotaxane approach
    (Wiley-VCH GmbH, 2025-03-06) Peñaranda-Navarro, Raquel; Collados-Salmerón, María; Carrilero-Flores, Elena; Saura Sanmartín, Adrián; Química Orgánica
    The controlled release of target molecules is a relevant application in several areas, such as medicine, fragrance chemistry and catalysis. Systems which pursue this implementation require a fine-tune of the start and rate of the release, among other properties. In this scenario, rotaxane- and pseudorotaxane-based systems are postulated as ideal scaffolds to accomplish a precise cargo release, due to the special features provided by the intertwined arrangement. This short review covers advances towards the controlled release of different molecules using rotaxane- and pseudorotaxane-based systems, both in solution and in the solid state.
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    Open Access
    Recent Advances in the Preparation of Delivery Systems for the Controlled Release of Scents
    (Multidisciplinary Digital Publishing Institute, 2023-02-28) Saura Sanmartín, Adrián; Andreu Ardil, Laura; Química Orgánica
    Scents are volatile compounds highly employed in a wide range of manufactured items, such as fine perfumery, household products, and functional foods. One of the main directions of the research in this area aims to enhance the longevity of scents by designing efficient delivery systems to control the release rate of these volatile molecules and also increase their stability. Several approaches to release scents in a controlled manner have been developed in recent years. Thus, different controlled release systems have been prepared, including polymers, metal–organic frameworks and mechanically interlocked systems, among others. This review is focused on the preparation of different scaffolds to accomplish a slow release of scents, by pointing out examples reported in the last five years. In addition to discuss selected examples, a critical perspective on the state of the art of this research field is provided, comparing the different types of scent delivery systems.