Dispersió de raigs X d’angle petit i d’angle gran

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Dispersió de raigs X d’angle petit i d’angle gran

El servei SAXS-WAXS proporciona mesures estructurals amb una varietat de sistemes de mesura de materials cristal·lins i semicristal·lins. El rang de distàncies d’interès se situa en el domini de la nanoescala (0,2-100 nm). Els materials inclouen solucions de tensioactiu, cristalls líquids, materials mesoporosos, microemulsions, proteïnes en solució, ADN en solució i qualsevol tipus de material amb discontinuïtats de densitat electrònica en el rang esmentat.

Prestacions

Mesura amb l’equip SAXS-WAXS de col·limació puntual

Preparació, termostatització i mesura de la mostra a l’equip de raigs X que utilitza un feix puntual.

Mesura amb el mètode GISAXS

Mesura en angle rasant (Grazing-incidence).

Ús del detector 2D (càmera CCD) a l’equip de SAXS-WAXS

Canvi del detector lineal de l’equip SAXS-WAXS amb col·limació puntual per un detector 2D (càmera CCD)

Contacte

Per utilitzar el servei, contacteu per correu electrònic amb Dr. Ramon Pons o Jaume Caelles.

Tarifes

Aquí podeu consultar els preus de les prestacions del servei.

Personal

Jaume Caelles Balcells

Personal tècnic

Ramon Pons

Investigador Científic

Publicacions

Self-Assembly of Anti-Inflammatory Peptide Amphiphiles for Mucosal Health–
María José Gómara, Ignacio Pérez-Pomeda, Ramon Pons, Paul Ziprin, Carolina Herrera, Isabel Haro
Chembiochem, 27(7), e202500929, 2026

A lipid hydrogel to transport and release an anti-HIV-1 peptide into vaginal mucosa–
Noèlia Loza-Rodríguez, Aina Millán-Sánchez, Aleix Benítez, Ramon Pons, María José Gómara, Isabel Haro, Meritxell Genescà and Olga López
Materials Advances, 2025

Green cationic phenylalanine and tryptophan-based surfactants: Influence of the polar head amino acids and hydrophobic character on the self-aggregation, antimicrobial activity, and environmental behavior–
Zakaria Hafidi, María Teresa García, Ramon Pons, Francisco Fábio Oliveira de Sousa, María Elena Bautista, Sergio Vázquez, Lourdes Pérez
Journal of Molecular Liquids, 429, 127620, 2025

Formulating a Horseradish Extract in Phospholipid Vesicles to Target the Skin–
Maria De Luca,Luca Casula,Carlo Ignazio Giovanni Tuberoso,Ramon Pons,Maria del Carmen Morán,María Teresa García,Giuseppe Martelli,Antonio Vassallo and Carla Caddeo
Pharmaceutics 2024, 16(12), 1507

Lamellar liquid crystals in commercial polyether-modified polydimetilsiloxanes for coating applications: Structure, rheology and cross-linking–
Fatemeh Soleimani Rokni, Susana Vilchez, Carlos Rodríguez-Abreu
Journal of Surfactants and Detergents, 28(2), pp. 355–362, 2025

In vivo antihyperglycemic effect of Ptilostemon casabonae (L.) Greuter leaf extract and its liposomal formulation–
Simone Pani , Carla Caddeo , Laura Dazzi , Giuseppe Talani , Enrico Sanna , Arianna Marengo , Patrizia Rubiolo , Ramon Pons , Aurélien Dupont , Sonia Floris , Cinzia Sanna , Francesca Pintus
Journal of Drug Delivery Science and Technology, Volume 100, 106078, 2024

Systematic study of chromonic liquid crystal-based complex emulsions and their application in the preparation of silica nanomaterials–
Adrià Pérez-Calm, Yury V. Kolen’ko, Laura M. Salonen, Hugo Busson, Jordi Esquena, Carlos Rodríguez-Abreu
Colloids and SurfacesA: Physicochemical and Engineering Aspects 699(2024)134723

Antimicrobial and Anesthetic Niosomal Formulations Based on Amino Acid-Derived Surfactants–
Martina Romeo, Zakaria Hafidi , Rita Muzzalupo , Ramon Pons, María Teresa García, Elisabetta Mazzotta and Lourdes Pérez
Molecules 2024, 29, 2843. https://doi.org/10.3390/molecules29122843

A Nano-Based Approach to Deliver Satureja thymbra Essential Oil to the Skin: Formulation and Characterization–
Pani, S., Caddeo, C., Sanna, C., Pintus, F., Floris, S., Pons, R., Dupont, A., Tuberoso, C.I.G.
Molecules, 29 (5), art. no. 1041, 2024.

Tailored Design of a Water-Based Nanoreactor Technology for Producing Processable Sub-40 Nm 3D COF Nanoparticles at Atmospheric Conditions–
Llauradó-Capdevila, G., Veciana, A., Guarducci, M.A., Mayoral, A., Pons, R., Hertle, L., Ye, H., Mao, M., Sevim, S., Rodríguez-San-Miguel, D., Sorrenti, A., Jang, B., Wang, Z., Chen, X.-Z., Nelson, B.J., Matheu, R., Franco, C., Pané, S., Puigmartí-Luis, J.
Advanced Materials, 36 (14), art. no. 2306345, 2024

Tackling the challenges of the oral administration of a fermented flour extract with liposomes: Effect on intestinal HT-29 cells–
Tomassi, E., Lucchesi, D., Caddeo, C., Valenti, D., Sancho, V., Pons, R., Pucci, L.
Food Bioscience, 56, art. no. 103215, 2023.

Characteristics of a Lipid Hydrogel and Bigel as Matrices for Ascorbic Acid Stabilization–
Loza-Rodríguez, N., Millán-Sánchez, A., López, O.
Gels, 9 (8), art. no. 649, 2023.

A biocompatible lipid-based bigel for topical applications–
Loza-Rodríguez, N., Millán-Sánchez, A., López, O.
European Journal of Pharmaceutics and Biopharmaceutics, 190, pp. 24-34. 2023

Microstructural and Viscoelastic Properties of Liquid Crystal Phases of Soybean Lecithin with Olive and Castor Oils at Low Water Contents–
Godoy, C.A., Valiente, M., Muñoz, W., Bonilla, P., Pons, R., Montalvo, G.
Journal of Chemical and Engineering Data, 68 (7), pp. 1534-1542. 2023

Phenylalanine and Tryptophan-Based Surfactants as New Antibacterial Agents: Characterization, Self-Aggregation Properties, and DPPC/Surfactants Vesicles Formulation–
Hafidi, Z., Pérez, L., El Achouri, M., Pons, R.
Pharmaceutics, 15 (7), art. no. 1856, 2023.

Ceratonia siliqua L. Pod Extract: From Phytochemical Characterization to Liposomal Formulation and Evaluation of Behaviour in Cells–
De Luca, M., Tuberoso, C.I.G., Pons, R., García, M.T., Morán, M.D.C., Martelli, G., Vassallo, A., Caddeo, C.
Antioxidants, 12 (6), art. no. 1209, 2023.

Phenolic Fingerprint, Bioactivity and Nanoformulation of Prunus spinosa L. Fruit Extract for Skin Delivery–
De Luca, M., Tuberoso, C.I.G., Pons, R., García, M.T., Morán, M.D.C., Ferino, G., Vassallo, A., Martelli, G., Caddeo, C.
Pharmaceutics, 15 (4), art. no. 1063, 2023

Mwnts or peg as stability enhancers for dna–cationic surfactant gel particles–
Mezei, A., Pons, R.
International Journal of Molecular Sciences, 22 (16), art. no. 8801, 2021

Peptide Amphiphilic-Based Supramolecular Structures with Anti-HIV-1 Activity–
Maria J. Gómara, Ramon Pons, Carolina Herrera, Paul Ziprin, and Isabel Haro
Bioconjugate Chem. 32 (9), pp. 1999-2013. 2021

Aggregation behavior, antibacterial activity and biocompatibility of catanionic assemblies based on amino acid‐derived surfactants–
Pérez, L., Pinazo, A., Morán, M.C., Pons, R.
International Journal of Molecular Sciences, 21 (23), art. no. 8912, pp. 1-23. 2020

Pathway selection as a tool for crystal defect engineering: A case study with a functional coordination polymer–
Afshin Abrishamkar, Salvio Suárez–García, Semih Sevim, Alessandro Sorrenti, Ramon Pons, Shi-Xia Liu, Silvio Decurtins, Guillem Aromí , David Aguilà, Salvador Pané, Andrew J. deMelloa , Aurelian Rotaru, Daniel Ruiz–Molina, Josep Puigmartí-Luis
Applied Materials Today.20, 100636, Sep 2020

Biomimetic Synthesis of Sub-20 nm Covalent Organic Frameworks in Water–
Carlos Franc, David Rodríguez-San-Miguel, Alessandro Sorrenti, Semih Sevim, Ramon Pons, Ana E. Platero-Prats, Marko PavlovicIs, tvan Szilágyi, M. Luisa Ruiz Gonzalez, José M. González-Calbet, Davide Bochicchio, Luca Pesce, Giovanni M. Pavan, Inhar Imaz, Mary Cano-Sarabia, Daniel Maspoch, Salvador Pané, Andrew J. de Mello, Felix Zamora, Josep Puigmartí-Luis
1.Am. Chem. Soc. 2020, 142, 7, 3540-3547

Preparation and characterization of a supramolecular hydrogel made of phospholipids and oleic acid with a high water content–
Talló, K., Bosch, M., Pons, R., Cocera, M., López, O.
1.Mater. Chem. B, 2020,8, 161-167

Stability, biocompatibility and antioxidant activity of PEG-modified liposomes containing resveratrol–
Caddeo, C., Pucci, L., Gabriele, M., Carbone, C., Fernàndez-Busquets, X., Valenti, D., Pons, R., Vassallo, A., Fadda, A.M., Manconi, M.
Int J Pharm. 2018, 538 (1-2), 40-47.

Transfection of antisense oligonucleotides mediated by cationic vesicles based on non-ionic surfactant and polycations bearing quaternary ammonium moieties–
Mayr, J., Grijalvo, S., Bachl, J., Pons, R., Eritja, R., Díaz, D.D.
Int J Mol Sci., (2017) 18 (6), art. no. 1139 .

Chiral Cyclobutane β-Amino Acid-Based Amphiphiles: Influence of Cis/Trans Stereochemistry on Condensed Phase and Monolayer Structure–
Sorrenti, A., Illa, O., Ortuño, R.M., Pons, R.
Langmuir (2016), 32 (27), pp. 6977-6984.

Complex rhamnolipid mixture characterization and its influence on DPPC bilayer organization–
Haba, E., Pinazo, A., Pons, R., Pérez, L., Manresa, A.
Biochimica et Biophysica Acta – Biomembranes (2014), 1838 (3), pp. 776-783.

Atomic Model and Micelle Dynamics of QS-21 Saponin–
Pedebos, C.; Pol-Fachin, L.; Pons, R.; Teixeira, C.V.; Teixeira, H.
Molecules; vol: 19 ; Pàgines: 3744 – 3760

Novel biocompatible DNA gel particles–
Morán, M.C., Infante, M.R., Miguel, M.G., Lindman, B., Pons, R.
Langmuir (2010), 26 (13), pp. 10606-10613.

Headgroup effects on the unusual lamellar-lamellar coexistence and vesicle-to-micelle transition of salt-free catanionic amphiphiles–
Silvas, B.F.B., Marques, E.F., Olsson, U., Pons, R.
Langmuir (2010), 26 (5), pp. 3058-3066.