66 documents found, page 1 of 7
Multifunctional magneto-plasmonic lipogel based on peptide hydrogel for applica...
Gomes, Valéria; Veloso, Sérgio R. S.; Carvalho, André; Hilliou, L.; Coutinho, Paulo J. G.; Moura, C.; Martins, J. A. R.; Castanheira, Elisabete M. S.Supramolecular hydrogels, particularly low-molecular-weight peptide hydrogels, are promising drug delivery systems due to their ability to change the solubility, targeting, metabolism and toxicity of drugs. Magneto-plasmonic liposomes, in addition to being remotely controllable with the application of an external magnetic field, also increase the efficiency of encapsulated drug release through thermal stimulati...
Self-assembly pathway influence on Dehydropeptide-based gel properties and drug...
Veloso, Sérgio R S; Vijayakanth, Thangavel; Shankar, Sudha; Fridman, Natalia; Rencus-Lazar, Sigal; Hilliou, L.; Rodrigues, Pedro V.; Moura, C.Low-molecular-weight peptide-based hydrogels formed through self-assembly have emerged as promising candidates for biomedical applications. While the self-assembly process is known to affect the network morphology, its impact on mechanical properties and drug delivery remains poorly understood. In this work, it is explored how different gelation conditions influence the morphology, properties, and drug release ...
Addressing absenteeism through a community of practice in higher education: The...
Marinho, Paula; Casanova, Joana R.; Valente, Teresa Maria Fernandes; Henriques, Renato F.; Gonçalves, Luís Miguel Barros; Moura, C.; Silva, Ana CatarinaThis article presents Community of Practice for Attendance (CoP +Attendance), awarded funding through the 7th Edition of the University of Minho's Programme to Support Projects for Innovation and Development in Teaching and Learning [2024/2nd Call], coordinated by the IDEA- UMinho Centre, throughout 2025. The CoP +Attendance addresses absenteeism among undergraduate students. The initiative will focus in Geolog...
A novel microfluidic system for 3D epidermis and full-thickness skin growth for...
Costa, Samanta; Carneiro, Ana Beatriz Machado; Lebre, Filipe; Meneses, João; Ainda, Alar; Moura, C.; Alfaro-Moreno, ErnestoChronic skin exposure to nanoparticles (NPs) from air pollution, cosmetics, tattoo inks, and smart textiles is linked to adverse effects such as accelerated aging, dermatitis, eczema, and increased melanoma risk. However, the limited predictive power and physiological relevance of conventional in vitro models, combined with the absence of standardized protocols for assessing NP toxicity, remain a major challenge...
Growth of Al:ZnO nano-flowers by pulsed laser ablation deposition
Tiss, B.; Martínez-Martínez, D.; Silva, B.; Bouguila, N.; El Mir, L.; Almeida, B.; Moura, C.; Cunha, L.Aluminium-doped (3%) zinc oxide thin films (AZO) were prepared, using pulsed laser deposition, with varying deposition times. The target was fabricated from compacted aluminium-doped zinc oxide nano-powder produced by sol–gel. The films had a growth consisting of nanostructures in the form of columns with sharp ends which, for certain deposition times, resemble nano-flowers or nano-leaves. The small spheroid-li...
Enhancing photocatalysis through annealing: unveiling the role of physical prop...
Tiss, Belgacem; Zayoud, W.; Sekrafi, Houssemeddine; Bouguila, N.; Cristea, D.; Croitoru, C.; Velicu, L.; Tiron, V.; Prepelita, P.; Craciun, V.Using spray pyrolysis, silver-doped In2S3 thin films were deposited on pre-heated glass substrates, with varying doping concentrations. Subsequently, these films underwent vacuum annealing at 400 °C for a duration of 2 h. A comprehensive study of their structural, morphological, and optical properties was conducted, revealing homogeneous, compact, crack-free films with polycrystalline tetragonal-phase of In2S3....
Nanoplasmonic Au:CuO thin films functionalized with APTES to enhance the sensit...
Proença, Manuela; Rodrigues, Marco S.; Moura, C.; Machado, A. V.; Borges, Joel; Vaz, FilipeCarbon monoxide (CO) is a highly flammable and toxic gas to humans and animals, that's why its detection and monitoring are crucial. A promising technique to develop a robust and cheap gas sensor, operating at room temperature, is Localized Surface Plasmon Resonance (LSPR) sensing. However, LSPR sensing of inorganic gas molecules, such as CO, is challenging due to their extremely small differences in refractive...
The effects of annealing process on the characteristics of β-In2S3 powder in pe...
Timoumi, A.; Tiss, Belgacem; Zayoud, W.; Sharma, A.; Kraini, M.; Bouguila, N.; Moura, C.; Cunha, L.; Khirouni, K.Due to its significant expansion as a sustainable energy source, the investigation of thin-film-based solar cells is a very important field of research among materials scientists. Nowadays, CdTe based photovoltaic devices are developed using indium sulfide (In2S3) as potential material. This study reports the effect of the annealing temperature, up to 450 °C, on In2S3 physical properties, and the consequences f...
Influence of silver doping on physical properties of sprayed In2S3 films for so...
Tiss, Belgacem; Moualhi, Y; Bouguila, Noureddine; Erouel, M.; Kraini, M.; Alaya, Sahbi; Aouida, S.; Vázquez-Vázquez, C.; Moura, C.; Cunha, LuísA set of silver-doped indium sulphide (In2S3:Ag) thin films were deposited by spray pyrolysis technique, at 350 degrees C, to analyze the effects of the Ag doping on the physical properties of the films. Within the limits of the analyzed dopant concentration, X-ray diffraction (XRD) revealed the polycrystalline nature of the films, crystalizing in the beta-In2S3 cubic phase, regardless the level of doping. Both...
Supramolecular ultra-short carboxybenzyl-protected dehydropeptide-based hydroge...
Veloso, Sérgio R. S.; Jervis, Peter J.; Silva, Joana F. G.; Hilliou, L.; Moura, C.; Pereira, David M; Coutinho, Paulo J. G.; Martins, J. A.Self-assembled peptide-based hydrogels are promising materials for biomedical research owing to biocompatibility and similarity to the extracellular matrix, amenable synthesis and functionalization and structural tailoring of the rheological properties. Wider developments of self-assembled peptide-based hydrogels in biomedical research and clinical translation are hampered by limited commercial availability all...