Search

Your search keyword '"Palomares, A. J."' showing total 187 results
Start Over Author "Palomares, A. J." Language english
187 results on '"Palomares, A. J."'

5. Nonulcerated Necrobiosis Lipoidica Successfully Treated with Tapinarof: A Case Report

Author

Palomares,Samantha J and Farberg,Aaron S

Subjects
Clinical, Cosmetic and Investigational Dermatology
Abstract

Samantha J Palomares, Aaron S Farberg Bare Dermatology, Dallas, TX, USACorrespondence: Aaron S Farberg, Tel +1 847 721 2725, Email aaron.farberg@gmail.comAbstract: Necrobiosis lipoidica (NL) is a chronic granulomatous disorder of the skin which usually presents with red papules and plaques on the lower extremities. Diabetes mellitus has been found to be associated with NL, but the pathophysiology of the disease is unknown. Based on a Doppler flowmetry study showing increased blood flow at NL lesions and the macrophage upregulation of granulomatous disorders, it is reasonable to conclude that there is an inflammatory component to it. NL is extremely challenging to manage. The initial treatment of choice is usually topical or intralesional corticosteroids, and if this fails to work, many dermatologists depend on the small number of case reports for more treatment options. We present a pre-diabetic patient with nonulcerative NL who was successfully treated with the first-in-class therapeutic aryl hydrocarbon receptor (AHR)-modulating agent tapinarof cream (VTAMA, Dermavant). Following the case presentation is a discussion of this topical novel agent and its unique anti-inflammatory mechanism of action. Tapinarof specifically binds to and activates AHR leading to downregulation of TNF-α/IL-23/IL-17 and inhibition of IL-4/IL-13 mediated STAT6 activation. Anti-TNF-α agents and JAK-inhibitors have also been found to be beneficial in treating NL; tapinarof seems to target both these pathways without the risk of their serious adverse reactions.Keywords: aryl hydrocarbon receptor, AHR, granulomatous disease, JAK-STAT pathway, macrophage activation disorder, necrobiosis lipoidica diabeticorum, therapeutic aryl hydrocarbon receptor-modulating agent, TAMA, tumor necrosis factor-alpha antagonists, TNF-α antagonists

Published
2023

10. Parasitism and pathogenicity of curly-leaf parsley with the root-knot nematode Meloidogyne javanica in Southern Italy

Author

Sasanelli N., Vovlas N., Cantalapiedra-Navarrete C., Lucarelli G., Palomares-Rius J. E., and Castillo P.

Subjects
giant cells, histopathology, nematode reproduction, petroselinum crispum, root-knot nematode population density, Microbiology, QR1-502
Abstract

Severe infections of parsley plants and soil infestations with Meloidogyne javanica during an autumn surveys for the pathogenic root-knot nematode infestations were found in Monopoli at Bari province in Southern Italy. This unusual severe infection of parsley, considered a winter crop, was possibly instigated by a very warm autumn from the previous year. Nematodes were extracted from soil samples according to the Coolen’s method. Morphological analysis (based on stylet length, tail length and shape, adult females perineal pattern, excretory pore position and Ep/stylet ratio) and molecular studies were used for the nematode characterization and identification. In the soil of infested area a severely deformed root systems were observed, showing a galling rate = 2.5 - 4 (scale 0-5) and a soil nematode population densities ranging from 350 to 2,730 eggs and J2 per 5 g of fresh root. M. javanica attack on parsley roots is a limiting factor for plant growth. Considering that curly-leaf parsley varieties resistant to the nematodes are not yet available control strategies must be focused on reduction of soil infestation level below tolerance limit of the target nematode species. Due to the higher cost and reduced availability of fumigant and non-fumigant nematicides, soil solarization, organic amendments or biological control approaches should be preferably used as alternatives.

Published
2015
Full Text
View/download PDF

11. Effectiveness and Safety of Entecavir or Tenofovir in a Spanish Cohort of Chronic Hepatitis B Patients: Validation of the Page-B Score to Predict Hepatocellular Carcinoma

Author

Riveiro-Barciela, Mar, Tabernero, David, Calleja, José L., Lens, Sabela, Manzano, María L., Rodríguez, Francisco Gea, Crespo, Javier, Piqueras, Belén, Pascasio, Juan M., Comas, Carmen, Gutierrez, Maria L., Aguirre, Alberto, Suárez, Emilio, García-Samaniego, Javier, Rivero, Miguel, Acero, Doroteo, Fernandez-Bermejo, Miguel, Moreno, Diego, Sánchez-Pobre, Pilar, de Cuenca, Beatriz, Moreno-Palomares, J. J, Esteban, Rafael, and Buti, Maria

Published
2017
Full Text
View/download PDF

14. Genomic Designing for Biotic Stress Resistant Grapevine

Author

Vezzulli, S., Gramaje, D., Tello, J., Gambino, G., Bettinelli, P., Pirrello, C., Schwandner, A., Barba, P., Angelini, E., Anfora, G., Mazzoni, V., Pozzebon, A., Palomares-Rius, J. E., Martínez-Diz, M. P., Toffolatti, S. L., De Lorenzis, G., De Paoli, E., Perrone, I., D’Incà, E., Zenoni, S., Wilmink, J., Lacombe, T., Crespan, M., Walker, M. A., Bavaresco, L., De la Fuente, M., Fennell, A., Tornielli, G. B., Forneck, A., Ibáñez, J., Hausmann &amp, and Reisch, B. I.

Subjects
resistance, Genotyping, Settore AGR/07 - GENETICA AGRARIA, Genotyping Molecular breeding Pathogen Pest Phenotyping R-loci Resistance Vitis, Biotic stress, Pathogen, Phenotyping, Molecular breeding, Pest, Vitis, grapevine, Biotic stress, resistance, R-loci, grapevine
Abstract

Grapevines are challenged by a range of diseases and pests, causing economic losses and requiring often costly approaches to mitigate damage. Public interest in reducing the use of chemicals is a related challenge, along with climate change. Yet, the Vitis gene pool provides vast resources for the development of genetic resistance in rootstock and scion cultivars. Traditional breeding approaches have made great strides in the development of adaptive traits, and recent access to ‘omic technologies has further facilitated the identification of useful loci along with rapid trait introgression from wild species. Moreover, marker technologies are now used to stack multiple genes for the same trait into a single genotype, a heretofore barely accessible technology. Genomic technologies are also impacting germplasm characterization, and thereby facilitating “Breeding by Design” approaches. Genetic transformation and gene-editing technologies are also applicable for both cultivar improvement as well as functional studies of genes. The landscape for acceptance of new resistant cultivars is complex and with wine grapes, subject to high degrees of regulation especially in the European Union. With rootstocks, as well as table/raisin grapes, gaining acceptance in the marketplace for new cultivars developed through either traditional or marker-assisted approaches is routine. Yet even in the highly regulated EU environment, the adoption of new wine cultivars of interspecific origins is beginning to take place in both traditional wine growing regions as well as non-traditional regions nearby.

Published
2022

28. Modification of the Mechanical Properties of Core‐Shell Liquid Gallium Nanoparticles by Thermal Oxidation at Low Temperature.

Author

Catalán‐Gómez, Sergio, Redondo‐Cubero, Andrés, Morales, Miguel, de la Mata, María, Molina, Sergio I., Palomares, Francisco J., Carnicero, Alberto, Pau, Jose L., and Vázquez, Luis

Subjects
GALLIUM, LOW temperatures, ATOMIC force microscopy, YOUNG'S modulus, OXIDATION
Abstract

Gallium nanoparticles (Ga NPs) are attracting increasing attention because of their appealing physical‐chemical properties. In particular, their mechanical properties play a key role in the implementation of these core‐shell structures on certain applications, such as soft and stretchable electronics. Thus, efforts are being addressed to modulate them mainly by chemical means. In contrast, this study investigates how the mechanical properties of the outer gallium thin oxide shell change when its thickness is increased through a thermal oxidation strategy. Specifically, as‐deposited Ga NPs, as well as those subjected to thermal oxidation at 300 °C for three different times, are studied by performing single‐particle indentations by atomic force microscopy over a wide range of NP radius. This analysis helps to confirm that the Reissner's thin‐shell model for small deformations within the elastic regime is obeyed. From these data, the dependence of the shell stiffness and the Young's modulus of the gallium oxide on the thermal treatment is obtained. It is found that the shell stiffness increases with the annealing time, even by a factor of 50 under prolonged thermal oxidation, while the gallium oxide Young's modulus, close to 30 GPa, does not change significantly. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

30. On the limits of uniaxial magnetic anisotropy tuning by a ripple surface pattern.

Author

Arranz, Miguel A., Colino, Jose M., and Palomares, Francisco J.

Subjects
ANISOTROPY, MAGNETIC films, ION bombardment, SPECTRUM analysis, THICK films
Abstract

Ion beam patterning of a nanoscale ripple surface has emerged as a versatile method of imprinting uniaxial magnetic anisotropy (UMA) on a desired in-plane direction in magnetic films. In the case of ripple patterned thick films, dipolar interactions around the top and/or bottom interfaces are generally assumed to drive this effect following Schlömann's calculations for demagnetizing fields of an ideally sinusoidal surface [E. Schlömann, J. Appl. Phys. 41, 1617 (1970)]. We have explored the validity of his predictions and the limits of ion beam sputtering to induce UMA in a ferromagnetic system where other relevant sources of magnetic anisotropy are neglected: ripple films not displaying any evidence of volume uniaxial anisotropy and where magnetocrystalline contributions average out in a fine grain polycrystal structure. To this purpose, the surface of 100 nm cobalt films grown on flat substrates has been irradiated at fixed ion energy, fixed ion fluency but different ion densities to make the ripple pattern at the top surface with wavelength K and selected, large amplitudes (ω) up to 20 nm so that stray dipolar fields are enhanced, while the residual film thickness t=35-50 nm is sufficiently large to preserve the continuous morphology in most cases. The film-substrate interface has been studied with X-ray photoemission spectroscopy depth profiles and is found that there is a graded silicon-rich cobalt silicide, presumably formed during the film growth. This graded interface is of uncertain small thickness but the range of compositions clearly makes it a magnetically dead layer. On the other hand, the ripple surface rules both the magnetic coercivity and the uniaxial anisotropy as these are found to correlate with the pattern dimensions. Remarkably, the saturation fields in the hard axis of uniaxial continuous films are measured up to values as high as 0.80 kG and obey a linear dependence on the parameter ω2/Λ/t in quantitative agreement with Schlömann's prediction for a surface anisotropy entirely ruled by dipolar interaction. The limits of UMA tuning by a ripple pattern are discussed in terms of the surface local angle with respect to the mean surface and of the onset of ripple detachment. [ABSTRACT FROM AUTHOR]

Published
2014
Full Text
View/download PDF

31. Local coercivity at X-ray nanobeam irradiated regions in amorphous Fe80B20 stripes.

Author

Urdiroz, U., Navarro, E., Sánchez-Agudo, M., Cebollada, F., Palomares, F. J., Criado, G. Martínez, and González, J. M.

Subjects
COERCIVE fields (Electronics), STRIPES, X-rays, MAGNETIZATION reversal, MAGNETIZATION
Abstract

We report on the effect, on the local magnetization reversal taking place in amorphous Fe80B20 stripes, of the irradiation with nanobeam synchrotron X-ray. That irradiation preserves the amorphous structure and results on the increase of the local coercivity with respect to that measured in a non-irradiated sample, in which the coercivity is mediated by the nucleation-propagation of a single wall. The local coercivity increases in a non-linear way with the width of the irradiated regions when that width is smaller than that of the wall mediating the magnetization switching in the non-irradiated stripe and gets saturated when the irradiated regions dimension is larger than the propagating wall width. We correlate this behavior with the induction at the irradiated regions of a reduction of the local effective anisotropy with respect to the stripe as-lithographed value. From the relationship between the coercivity and the width of the irradiated regions we estimate the local anisotropy reduction in a 25% of that measured in the non-irradiated stripe. [ABSTRACT FROM AUTHOR]

Published
2021
Full Text
View/download PDF

32. The management of acute venous thromboembolism in clinical practice - study rationale and protocol of the European PREFER in VTE Registry

Author

Agnelli, G., Gitt, A. K., Bauersachs, R., Fronk, E. -M., Laeis, P., Mismetti, P., Monreal, M., Willich, S. N., Wolf, W. -P., Cohen, A. T., Brodmann, M., Rief, P., Eischer, L., Stoshikj, S., Hirschl, M., Weinmann, S., Marschang, P., Abbadie, F., Achkar, A., Addala, A., Adnet, F., Alexandra, J. -F., Aquilanti, S., Belhassane, A., Benaroya, A., Berremili, T., Grenot, M. C., Birr, V., Holtea, D., Bonnin, C., Bosler, F., Durand, M. -G. B., Brisot, D., Brousse, C., De La Fuente, T., Cayman, R., Cazaubon, M., Champion, O., Chanut, M., Chevalet, P., Connault, J., Durant, C., Constans, J., Cordeanu, M., Couturaud, F., Lacut, K., De Dedker, L., Decoulx, E., Derrien, B., Diamand, J. -M., Diard, A., Douadi, Y., Dupas, S., Remond, S. S. M., Sevestre, M. -A., Edhery, S., Falvo, N., Taralunga, C. F., Ferrari, E., Gaillard, C., Garrigues, D., Gillet, J. L., Giordana, P., Grange, C., Vital-Durand, D., Grare, F., Henni, A. H., Heuser, S., Schmidt, J., Hidden-Henic, V., Hottin, D., Imbert, B., Pernod, G., Jakob, D., Jacquinandi, V., Jurus, C., Lacoste, A., Laroche, J. -P., Martin, M., Mazollier, C., Mersel, T., Miserey, G., Nedey, C., Nou, M., Quere, I., Ouvry, P., Peuch, B., Pichot, O., Poulain, V., Ray, P., Rifai, A., Roy, P. -M., Saby, J. -C., Simon, F., Simonot-Lalandec, E., Stephan, D., Tissot, A., Vodoungnon, H., Adamczyk, A., Schnabl, S., Ahmad, W. A., Weber, H., Axthelm, C., Bergmann, K., Beschorner, U., Knittel, M., Binias, K. -H., Pasligh, M., Boral, M., Friederike, G., Bratsch, H., Brauer, G., Burghard, S., Demann, C., Rennebaum, C., Demmig, A., Eberlein, U., Enger, F., Eschenburg, J., Forkmann, L., Frank, J., Freischmidt, H., Gassauer, M., Fritsche, I., Kubicek-Hofmann, C., Goebels, M. -C., Guggenbichler, S., Hartel, D., Hartmann, K., Heilberger, P., Heinsius, A., Held, M., Schnupp, S., Herman, G., Herold, J., Hertrich, F., Hommel, H., Hutte, G., Kalka, C., Jungandreas, K., Ramthor, M., Karcher, J., Werner, N., Karl-Wollweber, S., Keilhau, D. -A., Kittel, K., Knolinski, T., Kohler, C., Werth, S., Kopplin, U., Korner, I., Wittig, K., Kroger, K., Moysidis, T., Kroschel, U., Leschke, M., zur Nieden, T., Lubbert, G., Lutz, A., Wucherpfennig, P., Marencke, G. -H., Mortensen, K., Reppel, M., Nelles, H., Nestler, K., Neumeister, A., Schlosser, A., Oettler, W., Ott, I., Otto, A., Pertermann, A., Pfister, R., Pindur, L., Pourhassan, S., Predel, D., Pudollek, T., Reimer, D., Richter, C., Rieker, E., Rothenbucher, G., Rothhagen, B., Rudolff, S., Stucker, M., Schafer, A., Sonnenschein, K., Schafnitzl, W., Schellong, S., Voigts, B., Schiller, M., Schmeink, T., Schneider, H., Schon, N., Schulze, M., Sechtem, U., Sedl, S., Werno, H. S., Stachowitz, J., Thieme, M., Tiefenbacher, C., Tsantilas, D., Vieth, P., vom Dahl, J., Grun-Himmelmann, K., von Bilderling, P., von Maltik, T., Weinrich, K., Weyer, M., Koln, E. K., Wirtz, P., Wittig, I., Zierock, P., Ageno, W., Caprioli, M., Rancan, E., Guercini, F., Mommi, V., Amitrano, M., Cannavacciuolo, F., Amore, M., D'Antoni, S., Angelini, E., Forgia, S. L., Antignani, P. L., Calandra, G., Arone, A., Perticone, F., Sciacqua, A., Asaro, G., Bellisi, M., Attanzio, M. T., Pinto, A., Attinasi, V., Cillari, E., Sorvillo, S., Balbarini, A., Santini, C., Violo, C., Banfi, E., Lodigiani, C., Barcellona, D., Delpin, S., Marongiu, S., Barillari, G., Pasca, S, Bartolini, C., Verdecchia, P., Bartone, M., Mancuso, G., Bellanuova, I., Felis, S., Bellizzi, A., Masotti, L., Bianchi, M., Carugati, A., Bianchini, G., Guarnera, G., Boari, B., Gallerani, M., Pasin, M., Bortoluzzi, C., Parisi, R., Brucoli, C., Palasciano, G., Camporese, G., Tonello, C., Canafoglia, L., Rupoli, S., Cancellieri, E., Paoletti, O., Testa, S., Carlizza, A., Carnovali, M., Sada, S., Samaden, A., Casarsa, C., Mearelli, F., Pivetti, G., Catalini, R., Zingaretti, O., Vascolare, M., Cavazza, S., Cosmi, B., Cenci, C., Prisco, D., Silvestri, E., Ceresa, F., Patane, F., Ciampa, A., Siniscalchi, V., Ciarambino, T., De Bartolomeo, G., Clemente, M., Conti, F., Paiella, L., D'Avino, M., D'Alessandro, A., Placentino, M., Sollazzo, V., D'Angelo, A., Vigano, S., De Campora, P., Sangiuolo, R., De Franciscis, S., Serra, R., De Gaudenzi, E., De Santis, F., Piccinni, G. C., De Tommaso, I. D., Di Francesco, L., Vincentelli, G. M., Di Maggio, R., Saccullo, G., Siragusa, S., Di Micco, P., Fontanella, A., Di Michele, D., Di Minno, G., Tufano, A., Di Nisio, M., Porreca, E., Donadio, F., Imberti, D., Enea, I., Fabbian, F., Manfredini, R., Pala, M., Falanga, A., Milesi, V., Fiore, V., Franco, E., Giudice, G., Frausini, G., Rovinelli, M., Fuorlo, M., Landolfi, R., Morretti, T., Gamberini, S., Salmi, R., Ghirarduzzi, A., Veropalumbo, M. R., Ghizzi, M., Pepe, C., Gianniello, F., Martinelli, I., Iosub, D. I., Piovella, F., Iozzi, E., Talerico, A., Regina, M. L., Orlandini, F., Marconi, L., Palla, A., Marcucci, R., Poli, D., Margheriti, R., Sala, G., Marra, A., Marrocco, F., Montagna, E. S., Silvestris, F., Vallarelli, S., Mos, L., Rossetto, V., Mugno, F., Di Salvo, M., Nitti, C., Pennacchioni, M., Salvi, A., Olivieri, O., Tosi, F., Zorzi, F., Onesta, M., Pagliara, V., Villalta, S., Paolucci, G., Severino, S., Pierri, F., Russo, V., Pizzini, A. M., Quintavalla, R., Rubino, P., Ria, L., Schenone, A., Strafino, C., Tropeano, P., Vetrano, A., Zanatta, N., Cansino, M. D. A., Gutierrez, J. A., de las Revillas, F. A., Fernandez, C. A., Mijares, N. C., Blanco-Molina, M. A., Garcia, M. A., Seijo, D. J., Blazquez, R. A., Lopez-Saez, J. -B., Rodrigo, E. A., Blanch, J. V., Arxe, A. A., Dalmau, F. G. -B., Quincoces, A. B., Loizaga, A. G., Perez, J. L. B., Diaz, P. B., Loaiza, A. Q., Castellote, M. C., Alcantara, I. C., Padierna, M. L., Exposito, M. C., Mas, A. C., Castro, F. C., Sanz, R. C., de Saracho, J. O., de la Fuente, E. C., de Ancos Aracil, C., Ruiz, J. R., de Daborenea Gonzalez, M. D., Iglesias, A. F., de la Fuente Aguado, J., Gonzalez, L. G., del Carmen Fernandez-Capitan, M., Hernandez, A. L., del Toro Cervera, J., Rus, G. P., Bregel, J. L. D., Fernandez, F. D., Teresa Elias Hernandez, Palomares, L. J., Bataler, R. F., Rodriguez, J. A. N., Garcia, J. M. G., Porras, J. R. G., Garcia, M. G., Lopez, E. H., Lazaro, A. R., Jaras, M. J., Castro, D. J., Madridejos, R. J. -R., Navas, J. M. P., Lecumberri, R., Martinez, N., Castellanos, G. T. L., Espinosa, L. M., Jimenez, L. L., Cobo, O. M., Saiz, C. M., Pizarro, Y. R., Yglesias, P. J. M., Martin del Pozo, M., Melibovsky, L., Altarriba, E. S., Bosch, M. M., Secades, R. M., Lujan, J. M. M., Mestre, A. R., Moral, P. M., Parra, J. A. T., Flores, A. M., Munoz-Torrero, J. F. S., Rodriguez, F. J. M., Fernandez, M. J. N., Sibajas, E. O., de Sedas, M. V., Caballero, P. P., del Campo, I. P. M., Sanchez, J. P., Gallego, A. R., Alvarez, I. V., Beltran, E. M. R., Fuentes, D. S., Schilling, V. R., Alvarez, J. S., Lopez, G. T., Caralt, J. M. S., Miranda, R. T., de Antonio, E. U., Banyai, M., Frank, U., Gian Reto Jorg, Jeanneret, C., Staub, D., Ackroyd, S., Agarwal, G., Mearns, B., Alikhan, R., Allameddine, A., Al-Refaie, F., Arden, C., Austin, A., Bakhai, A., Barton, T., Ewad, H., Body, R., Thachil, J., Chacko, J., Chandra, D., Charters, F., Church, A., Mcgrane, F., Clements, J., Clifford, P., Cox, D., Crouch, M., Crowther, M., Davies, E., Davies, M., Dimitri, S., Drebes, A., Franklin, S., George, J., Irvine, N., Gerofke, H., Gibbs, C., Goh, T., Gupta, S., Holmes, J., Jackson-Voyzey, E., Jones, N., Kallat, A., Kerr, P., Kesteven, P., Lench, T., Lester, W., Lowe, G., Lewis, M., Mccormack, T., Mccoye, A., Moriarty, A., Morris, W., Myers, B., Narayanan, M., Oo, N., Reed, M., Rose, P., Saja, K., Sivakumaran, M., Sohal, M., Solomons, G., Sultanzadeh, S. J., Venton, T., Wakeling, J., Walby, C., Waldron, M., Watt, S., Willcock, W., Agnelli, G., Gitt, A. K., Bauersachs, R., Fronk, E. -M., Laeis, P., Mismetti, P., Monreal, M., Willich, S. N., Wolf, W. -P., Cohen, A. T., Brodmann, M., Rief, P., Eischer, L., Stoshikj, S., Hirschl, M., Weinmann, S., Marschang, P., Abbadie, F., Achkar, A., Addala, A., Adnet, F., Alexandra, J. -F., Aquilanti, S., Belhassane, A., Benaroya, A., Berremili, T., Grenot, M. C., Birr, V., Holtea, D., Bonnin, C., Bosler, F., Durand, M. -G. B., Brisot, D., Brousse, C., De La Fuente, T., Cayman, R., Cazaubon, M., Champion, O., Chanut, M., Chevalet, P., Connault, J., Durant, C., Constans, J., Cordeanu, M., Couturaud, F., Lacut, K., De Dedker, L., Decoulx, E., Derrien, B., Diamand, J. -M., Diard, A., Douadi, Y., Dupas, S., Remond, S. S. M., Sevestre, M. -A., Edhery, S., Falvo, N., Taralunga, C. F., Ferrari, E., Gaillard, C., Garrigues, D., Gillet, J. L., Giordana, P., Grange, C., Vital-Durand, D., Grare, F., Henni, A. H., Heuser, S., Schmidt, J., Hidden-Henic, V., Hottin, D., Imbert, B., Pernod, G., Jakob, D., Jacquinandi, V., Jurus, C., Lacoste, A., Laroche, J. -P., Martin, M., Mazollier, C., Mersel, T., Miserey, G., Nedey, C., Nou, M., Quere, I., Ouvry, P., Peuch, B., Pichot, O., Poulain, V., Ray, P., Rifai, A., Roy, P. -M., Saby, J. -C., Simon, F., Simonot-Lalandec, E., Stephan, D., Tissot, A., Vodoungnon, H., Adamczyk, A., Schnabl, S., Ahmad, W. A., Weber, H., Axthelm, C., Bergmann, K., Beschorner, U., Knittel, M., Binias, K. -H., Pasligh, M., Boral, M., Friederike, G., Bratsch, H., Brauer, G., Burghard, S., Demann, C., Rennebaum, C., Demmig, A., Eberlein, U., Enger, F., Eschenburg, J., Forkmann, L., Frank, J., Freischmidt, H., Gassauer, M., Fritsche, I., Kubicek-Hofmann, C., Goebels, M. -C., Guggenbichler, S., Hartel, D., Hartmann, K., Heilberger, P., Heinsius, A., Held, M., Schnupp, S., Herman, G., Herold, J., Hertrich, F., Hommel, H., Hutte, G., Kalka, C., Jungandreas, K., Ramthor, M., Karcher, J., Werner, N., Karl-Wollweber, S., Keilhau, D. -A., Kittel, K., Knolinski, T., Kohler, C., Werth, S., Kopplin, U., Korner, I., Wittig, K., Kroger, K., Moysidis, T., Kroschel, U., Leschke, M., zur Nieden, T., Lubbert, G., Lutz, A., Wucherpfennig, P., Marencke, G. -H., Mortensen, K., Reppel, M., Nelles, H., Nestler, K., Neumeister, A., Schlosser, A., Oettler, W., Ott, I., Otto, A., Pertermann, A., Pfister, R., Pindur, L., Pourhassan, S., Predel, D., Pudollek, T., Reimer, D., Richter, C., Rieker, E., Rothenbucher, G., Rothhagen, B., Rudolff, S., Stucker, M., Schafer, A., Sonnenschein, K., Schafnitzl, W., Schellong, S., Voigts, B., Schiller, M., Schmeink, T., Schneider, H., Schon, N., Schulze, M., Sechtem, U., Sedl, S., Werno, H. S., Stachowitz, J., Thieme, M., Tiefenbacher, C., Tsantilas, D., Vieth, P., vom Dahl, J., Grun-Himmelmann, K., von Bilderling, P., von Maltik, T., Weinrich, K., Weyer, M., Koln, E. K., Wirtz, P., Wittig, I., Zierock, P., Ageno, W., Caprioli, M., Rancan, E., Guercini, F., Mommi, V., Amitrano, M., Cannavacciuolo, F., Amore, M., D'Antoni, S., Angelini, E., Forgia, S. L., Antignani, P. L., Calandra, G., Arone, A., Perticone, F., Sciacqua, A., Asaro, G., Bellisi, M., Attanzio, M. T., Pinto, A., Attinasi, V., Cillari, E., Sorvillo, S., Balbarini, A., Santini, C., Violo, C., Banfi, E., Lodigiani, C., Barcellona, D., Delpin, S., Marongiu, S., Barillari, G., Pasca, S., Bartolini, C., Verdecchia, P., Bartone, M., Mancuso, G., Bellanuova, I., Felis, S., Bellizzi, A., Masotti, L., Bianchi, M., Carugati, A., Bianchini, G., Guarnera, G., Boari, B., Gallerani, M., Pasin, M., Bortoluzzi, C., Parisi, R., Brucoli, C., Palasciano, G., Camporese, G., Tonello, C., Canafoglia, L., Rupoli, S., Cancellieri, E., Paoletti, O., Testa, S., Carlizza, A., Carnovali, M., Sada, S., Samaden, A., Casarsa, C., Mearelli, F., Pivetti, G., Catalini, R., Zingaretti, O., Vascolare, M., Cavazza, S., Cosmi, B., Cenci, C., Prisco, D., Silvestri, E., Ceresa, F., Patane, F., Ciampa, A., Siniscalchi, V., Ciarambino, T., De Bartolomeo, G., Clemente, M., Conti, F., Paiella, L., D'Avino, M., D'Alessandro, A., Placentino, M., Sollazzo, V., D'Angelo, A., Vigano, S., De Campora, P., Sangiuolo, R., De Franciscis, S., Serra, R., De Gaudenzi, E., De Santis, F., Piccinni, G. C., De Tommaso, I. D., Di Francesco, L., Vincentelli, G. M., Di Maggio, R., Saccullo, G., Siragusa, S., Di Micco, P., Fontanella, A., Di Michele, D., Di Minno, G., Tufano, A., Di Nisio, M., Porreca, E., Donadio, F., Imberti, D., Enea, I., Fabbian, F., Manfredini, R., Pala, M., Falanga, A., Milesi, V., Fiore, V., Franco, E., Giudice, G., Frausini, G., Rovinelli, M., Fuorlo, M., Landolfi, R., Morretti, T., Gamberini, S., Salmi, R., Ghirarduzzi, A., Veropalumbo, M. R., Ghizzi, M., Pepe, C., Gianniello, F., Martinelli, I., Iosub, D. I., Piovella, F., Iozzi, E., Talerico, A., Regina, M. L., Orlandini, F., Marconi, L., Palla, A., Marcucci, R., Poli, D., Margheriti, R., Sala, G., Marra, A., Marrocco, F., Montagna, E. S., Silvestris, F., Vallarelli, S., Mos, L., Rossetto, V., Mugno, F., Di Salvo, M., Nitti, C., Pennacchioni, M., Salvi, A., Olivieri, O., Tosi, F., Zorzi, F., Onesta, M., Pagliara, V., Villalta, S., Paolucci, G., Severino, S., Pierri, F., Russo, V., Pizzini, A. M., Quintavalla, R., Rubino, P., Ria, L., Schenone, A., Strafino, C., Tropeano, P., Vetrano, A., Zanatta, N., Cansino, M. D. A., Gutierrez, J. A., de las Revillas, F. A., Fernandez, C. A., Mijares, N. C., Blanco-Molina, M. A., Garcia, M. A., Seijo, D. J., Blazquez, R. A., Lopez-Saez, J. -B., Rodrigo, E. A., Blanch, J. V., Arxe, A. A., Dalmau, F. G. -B., Quincoces, A. B., Loizaga, A. G., Perez, J. L. B., Diaz, P. B., Loaiza, A. Q., Castellote, M. C., Alcantara, I. C., Padierna, M. L., Exposito, M. C., Mas, A. C., Castro, F. C., Sanz, R. C., de Saracho, J. O., de la Fuente, E. C., de Ancos Aracil, C., Ruiz, J. R., de Daborenea Gonzalez, M. D., Iglesias, A. F., de la Fuente Aguado, J., Gonzalez, L. G., del Carmen Fernandez-Capitan, M., Hernandez, A. L., del Toro Cervera, J., Rus, G. P., Bregel, J. L. D., Fernandez, F. D., Teresa Elias, Hernandez, Palomares, L. J., Bataler, R. F., Rodriguez, J. A. N., Garcia, J. M. G., Porras, J. R. G., Garcia, M. G., Lopez, E. H., Lazaro, A. R., Jaras, M. J., Castro, D. J., Madridejos, R. J. -R., Navas, J. M. P., Lecumberri, R., Martinez, N., Castellanos, G. T. L., Espinosa, L. M., Jimenez, L. L., Cobo, O. M., Saiz, C. M., Pizarro, Y. R., Yglesias, P. J. M., Martin del Pozo, M., Melibovsky, L., Altarriba, E. S., Bosch, M. M., Secades, R. M., Lujan, J. M. M., Mestre, A. R., Moral, P. M., Parra, J. A. T., Flores, A. M., Munoz-Torrero, J. F. S., Rodriguez, F. J. M., Fernandez, M. J. N., Sibajas, E. O., de Sedas, M. V., Caballero, P. P., del Campo, I. P. M., Sanchez, J. P., Gallego, A. R., Alvarez, I. V., Beltran, E. M. R., Fuentes, D. S., Schilling, V. R., Alvarez, J. S., Lopez, G. T., Caralt, J. M. S., Miranda, R. T., de Antonio, E. U., Banyai, M., Frank, U., Gian Reto, Jorg, Jeanneret, C., Staub, D., Ackroyd, S., Agarwal, G., Mearns, B., Alikhan, R., Allameddine, A., Al-Refaie, F., Arden, C., Austin, A., Bakhai, A., Barton, T., Ewad, H., Body, R., Thachil, J., Chacko, J., Chandra, D., Charters, F., Church, A., Mcgrane, F., Clements, J., Clifford, P., Cox, D., Crouch, M., Crowther, M., Davies, E., Davies, M., Dimitri, S., Drebes, A., Franklin, S., George, J., Irvine, N., Gerofke, H., Gibbs, C., Goh, T., Gupta, S., Holmes, J., Jackson-Voyzey, E., Jones, N., Kallat, A., Kerr, P., Kesteven, P., Lench, T., Lester, W., Lowe, G., Lewis, M., Mccormack, T., Mccoye, A., Moriarty, A., Morris, W., Myers, B., Narayanan, M., Oo, N., Reed, M., Rose, P., Saja, K., Sivakumaran, M., Sohal, M., Solomons, G., Sultanzadeh, S. J., Venton, T., Wakeling, J., Walby, C., Waldron, M., Watt, S., Willcock, W., Zafar, A., Agnelli, G, Gitt, A, Bauersachs, R, Fronk, E, Laeis, P, Mismetti, P, Monreal, M, Willich, S, Wolf, W, Cohen, A, Brodmann, M, Rief, P, Eischer, L, Stoshikj, S, Hirschl, M, Weinmann, S, Marschang, P, Abbadie, F, Achkar, A, Addala, A, Adnet, F, Alexandra, J, Aquilanti, S, Belhassane, A, Benaroya, A, Berremili, T, Grenot, M, Birr, V, Holtea, D, Bonnin, C, Bosler, F, Durand, M, Brisot, D, Brousse, C, De La Fuente, T, Cayman, R, Cazaubon, M, Champion, O, Chanut, M, Chevalet, P, Connault, J, Durant, C, Constans, J, Cordeanu, M, Couturaud, F, Lacut, K, De Dedker, L, Decoulx, E, Derrien, B, Diamand, J, Diard, A, Douadi, Y, Dupas, S, Remond, S, Sevestre, M, Edhery, S, Falvo, N, Taralunga, C, Ferrari, E, Gaillard, C, Garrigues, D, Gillet, J, Giordana, P, Grange, C, Vital-Durand, D, Grare, F, Henni, A, Heuser, S, Schmidt, J, Hidden-Henic, V, Hottin, D, Imbert, B, Pernod, G, Jakob, D, Jacquinandi, V, Jurus, C, Lacoste, A, Laroche, J, Martin, M, Mazollier, C, Mersel, T, Miserey, G, Nedey, C, Nou, M, Quere, I, Ouvry, P, Peuch, B, Pichot, O, Poulain, V, Ray, P, Rifai, A, Roy, P, Saby, J, Simon, F, Simonot-Lalandec, E, Stephan, D, Tissot, A, Vodoungnon, H, Adamczyk, A, Schnabl, S, Ahmad, W, Weber, H, Axthelm, C, Bergmann, K, Beschorner, U, Knittel, M, Binias, K, Pasligh, M, Boral, M, Friederike, G, Bratsch, H, Brauer, G, Burghard, S, Demann, C, Rennebaum, C, Demmig, A, Eberlein, U, Enger, F, Eschenburg, J, Forkmann, L, Frank, J, Freischmidt, H, Gassauer, M, Fritsche, I, Kubicek-Hofmann, C, Goebels, M, Guggenbichler, S, Hartel, D, Hartmann, K, Heilberger, P, Heinsius, A, Held, M, Schnupp, S, Herman, G, Herold, J, Hertrich, F, Hommel, H, Hutte, G, Kalka, C, Jungandreas, K, Ramthor, M, Karcher, J, Werner, N, Karl-Wollweber, S, Keilhau, D, Kittel, K, Knolinski, T, Kohler, C, Werth, S, Kopplin, U, Korner, I, Wittig, K, Kroger, K, Moysidis, T, Kroschel, U, Leschke, M, zur Nieden, T, Lubbert, G, Lutz, A, Wucherpfennig, P, Marencke, G, Mortensen, K, Reppel, M, Nelles, H, Nestler, K, Neumeister, A, Schlosser, A, Oettler, W, Ott, I, Otto, A, Pertermann, A, Pfister, R, Pindur, L, Pourhassan, S, Predel, D, Pudollek, T, Reimer, D, Richter, C, Rieker, E, Rothenbucher, G, Rothhagen, B, Rudolff, S, Stucker, M, Schafer, A, Sonnenschein, K, Schafnitzl, W, Schellong, S, Voigts, B, Schiller, M, Schmeink, T, Schneider, H, Schon, N, Schulze, M, Sechtem, U, Sedl, S, Werno, H, Stachowitz, J, Thieme, M, Tiefenbacher, C, Tsantilas, D, Vieth, P, vom Dahl, J, Grun-Himmelmann, K, von Bilderling, P, von Maltik, T, Weinrich, K, Weyer, M, Koln, E, Wirtz, P, Wittig, I, Zierock, P, Ageno, W, Caprioli, M, Rancan, E, Guercini, F, Mommi, V, Amitrano, M, Cannavacciuolo, F, Amore, M, D'Antoni, S, Angelini, E, Forgia, S, Antignani, P, Calandra, G, Arone, A, Perticone, F, Sciacqua, A, Asaro, G, Bellisi, M, Attanzio, M, Pinto, A, Attinasi, V, Cillari, E, Sorvillo, S, Balbarini, A, Santini, C, Violo, C, Banfi, E, Lodigiani, C, Barcellona, D, Delpin, S, Marongiu, S, Barillari, G, Pasca, S, Bartolini, C, Verdecchia, P, Bartone, M, Mancuso, G, Bellanuova, I, Felis, S, Bellizzi, A, Masotti, L, Bianchi, M, Carugati, A, Bianchini, G, Guarnera, G, Boari, B, Gallerani, M, Pasin, M, Bortoluzzi, C, Parisi, R, Brucoli, C, Palasciano, G, Camporese, G, Tonello, C, Canafoglia, L, Rupoli, S, Cancellieri, E, Paoletti, O, Testa, S, Carlizza, A, Carnovali, M, Sada, S, Samaden, A, Casarsa, C, Mearelli, F, Pivetti, G, Catalini, R, Zingaretti, O, Vascolare, M, Cavazza, S, Cosmi, B, Cenci, C, Prisco, D, Silvestri, E, Ceresa, F, Patane, F, Ciampa, A, Siniscalchi, V, Ciarambino, T, De Bartolomeo, G, Clemente, M, Conti, F, Paiella, L, D'Avino, M, D'Alessandro, A, Placentino, M, Sollazzo, V, D'Angelo, A, Vigano, S, De Campora, P, Sangiuolo, R, De Franciscis, S, Serra, R, De Gaudenzi, E, De Santis, F, Piccinni, G, De Tommaso, I, Di Francesco, L, Vincentelli, G, Di Maggio, R, Saccullo, G, Siragusa, S, Di Micco, P, Fontanella, A, Di Michele, D, Di Minno, G, Tufano, A, Di Nisio, M, Porreca, E, Donadio, F, Imberti, D, Enea, I, Fabbian, F, Manfredini, R, Pala, M, Falanga, A, Milesi, V, Fiore, V, Franco, E, Giudice, G, Frausini, G, Rovinelli, M, Fuorlo, M, Landolfi, R, Morretti, T, Gamberini, S, Salmi, R, Ghirarduzzi, A, Veropalumbo, M, Ghizzi, M, Pepe, C, Gianniello, F, Martinelli, I, Iosub, D, Piovella, F, Iozzi, E, Talerico, A, Regina, M, Orlandini, F, Marconi, L, Palla, A, Marcucci, R, Poli, D, Margheriti, R, Sala, G, Marra, A, Marrocco, F, Montagna, E, Silvestris, F, Vallarelli, S, Mos, L, Rossetto, V, Mugno, F, Di Salvo, M, Nitti, C, Pennacchioni, M, Salvi, A, Olivieri, O, Tosi, F, Zorzi, F, Onesta, M, Pagliara, V, Villalta, S, Paolucci, G, Severino, S, Pierri, F, Russo, V, Pizzini, A, Quintavalla, R, Rubino, P, Ria, L, Schenone, A, Strafino, C, Tropeano, P, Vetrano, A, Zanatta, N, Cansino, M, Gutierrez, J, de las Revillas, F, Fernandez, C, Mijares, N, Blanco-Molina, M, Garcia, M, Seijo, D, Blazquez, R, Lopez-Saez, J, Rodrigo, E, Blanch, J, Arxe, A, Dalmau, F, Quincoces, A, Loizaga, A, Perez, J, Diaz, P, Loaiza, A, Castellote, M, Alcantara, I, Padierna, M, Exposito, M, Mas, A, Castro, F, Sanz, R, de Saracho, J, de la Fuente, E, de Ancos Aracil, C, Ruiz, J, de Daborenea Gonzalez, M, Iglesias, A, de la Fuente Aguado, J, Gonzalez, L, del Carmen Fernandez-Capitan, M, Hernandez, A, del Toro Cervera, J, Rus, G, Bregel, J, Fernandez, F, Teresa Elias, H, Palomares, L, Bataler, R, Rodriguez, J, Garcia, J, Porras, J, Lopez, E, Lazaro, A, Jaras, M, Castro, D, Madridejos, R, Navas, J, Lecumberri, R, Martinez, N, Castellanos, G, Espinosa, L, Jimenez, L, Cobo, O, Saiz, C, Pizarro, Y, Yglesias, P, Martin del Pozo, M, Melibovsky, L, Altarriba, E, Bosch, M, Secades, R, Lujan, J, Mestre, A, Moral, P, Parra, J, Flores, A, Munoz-Torrero, J, Rodriguez, F, Fernandez, M, Sibajas, E, de Sedas, M, Caballero, P, del Campo, I, Sanchez, J, Gallego, A, Alvarez, I, Beltran, E, Fuentes, D, Schilling, V, Alvarez, J, Lopez, G, Caralt, J, Miranda, R, de Antonio, E, Banyai, M, Frank, U, Gian Reto, J, Jeanneret, C, Staub, D, Ackroyd, S, Agarwal, G, Mearns, B, Alikhan, R, Allameddine, A, Al-Refaie, F, Arden, C, Austin, A, Bakhai, A, Barton, T, Ewad, H, Body, R, Thachil, J, Chacko, J, Chandra, D, Charters, F, Church, A, Mcgrane, F, Clements, J, Clifford, P, Cox, D, Crouch, M, Crowther, M, Davies, E, Davies, M, Dimitri, S, Drebes, A, Franklin, S, George, J, Irvine, N, Gerofke, H, Gibbs, C, Goh, T, Gupta, S, Holmes, J, Jackson-Voyzey, E, Jones, N, Kallat, A, Kerr, P, Kesteven, P, Lench, T, Lester, W, Lowe, G, Lewis, M, Mccormack, T, Mccoye, A, Moriarty, A, Morris, W, Myers, B, Narayanan, M, Oo, N, Reed, M, Rose, P, Saja, K, Sivakumaran, M, Sohal, M, Solomons, G, Sultanzadeh, S, Venton, T, Wakeling, J, Walby, C, Waldron, M, Watt, S, Willcock, W, and Zafar, A

Subjects
Drug Utilization, Pediatrics, medicine.medical_specialty, Novel Oral Anticoagulants, Registry, Deep vein, Alternative medicine, Anticoagulation, Patient satisfaction, Quality of life, Health care, medicine, Anticoagulation, Novel Oral Anticoagulants, Prevention, Registry, Venous Thromboembolism, Vitamin K antagonists, cardiovascular diseases, business.industry, Prevention, Venous Thromboembolism, Vitamin K antagonists, Hematology, Novel Oral Anticoagulant, medicine.disease, equipment and supplies, Pulmonary embolism, medicine.anatomical_structure, Emergency medicine, Original Clinical Investigation, Observational study, business
Abstract

Background: Venous thromboembolism (VTE) is a major health problem, with over one million events every year in Europe. However, there is a paucity of data on the current management in real life, including factors influencing treatment pathways, patient satisfaction, quality of life (QoL), and utilization of health care resources and the corresponding costs. The PREFER in VTE registry has been designed to address this and to understand medical care and needs as well as potential gaps for improvement. Methods/design: The PREFER in VTE registry was a prospective, observational, multicenter study conducted in seven European countries including Austria, France Germany, Italy, Spain, Switzerland, and the UK to assess the characteristics and the management of patients with VTE, the use of health care resources, and to provide data to estimate the costs for 12 months treatment following a first-time and/or recurrent VTE diagnosed in hospitals or specialized or primary care centers. In addition, existing anticoagulant treatment patterns, patient pathways, clinical outcomes, treatment satisfaction, and health related QoL were documented. The centers were chosen to reflect the care environment in which patients with VTE are managed in each of the participating countries. Patients were eligible to be enrolled into the registry if they were at least 18 years old, had a symptomatic, objectively confirmed first time or recurrent acute VTE defined as either distal or proximal deep vein thrombosis, pulmonary embolism or both. After the baseline visit at the time of the acute VTE event, further follow-up documentations occurred at 1, 3, 6 and 12 months. Follow-up data was collected by either routinely scheduled visits or by telephone calls. Results: Overall, 381 centers participated, which enrolled 3,545 patients during an observational period of 1 year. Conclusion: The PREFER in VTE registry will provide valuable insights into the characteristics of patients with VTE and their acute and mid-term management, as well as into drug utilization and the use of health care resources in acute first-time and/or recurrent VTE across Europe in clinical practice. Trial registration: Registered in DRKS register, ID number: DRKS00004795

Published
2015

34. Shedding Light Onto the Nature of Iron Decorated Graphene and Graphite Oxide Nanohybrids for CO2 Conversion at Atmospheric Pressure.

Author

Owen, Rhodri E., Cortezon‐Tamarit, Fernando, Calatayud, David G., Evans, Enid A., Mitchell, Samuel I. J., Mao, Boyang, Palomares, Francisco J., Mitchels, John, Plucinski, Pawel, Mattia, Davide, Jones, Matthew D., and Pascu, Sofia I.

Subjects
GRAPHENE oxide, ATMOSPHERIC pressure, GRAPHITE oxide, FERRIC oxide, IRON, SUSTAINABLE chemistry
Abstract

We report on the design and testing of new graphite and graphene oxide‐based extended π‐conjugated synthetic scaffolds for applications in sustainable chemistry transformations. Nanoparticle‐functionalised carbonaceous catalysts for new Fischer Tropsch and Reverse GasWater Shift (RGWS) transformations were prepared: functional graphene oxides emerged from graphite powders via an adapted Hummer's method and subsequently impregnated with uniform‐sized nanoparticles. Then the resulting nanomaterials were imaged by TEM, SEM, EDX, AFM and characterised by IR, XPS and Raman spectroscopies prior to incorporation of Pd(II) promoters and further microscopic and spectroscopic analysis. Newly synthesised 2D and 3D layered nanostructures incorporating carbon‐supported iron oxide nanoparticulate pre‐catalysts were tested, upon hydrogen reduction in situ, for the conversion of CO2 to CO as well as for the selective formation of CH4 and longer chain hydrocarbons. The reduction reaction was also carried out and the catalytic species isolated and fully characterised. The catalytic activity of a graphene oxide‐supported iron oxide pre‐catalyst converted CO2 into hydrocarbons at different temperatures (305, 335, 370 and 405 °C), and its activity compared well with that of the analogues supported on graphite oxide, the 3‐dimensional material precursor to the graphene oxide. Investigation into the use of graphene oxide as a framework for catalysis showed that it has promising activity with respect to reverse gas water shift (RWGS) reaction of CO2 to CO, even at the low levels of catalyst used and under the rather mild conditions employed at atmospheric pressure. Whilst the γ‐Fe2O3 decorated graphene oxide‐based pre‐catalyst displays fairly constant activity up to 405 °C, it was found by GC‐MS analysis to be unstable with respect to decomposition at higher temperatures. The addition of palladium as a promoter increased the activity of the iron functionalised graphite oxide in the RWGS. The activity of graphene oxide supported catalysts was found to be enhanced with respect to that of iron‐functionalised graphite oxide with, or without palladium as a promoter, and comparable to that of Fe@carbon nanotube‐based systems tested under analogous conditions. These results display a significant step forward for the catalytic activity estimations for the iron functionalised and rapidly processable and scalable graphene oxide. The hereby investigated phenomena are of particular relevance for the understanding of the intimate surface morphologies and the potential role of non‐covalent interactions in the iron oxide‐graphene oxide networks, which could inform the design of nano‐materials with performance in future sustainable catalysis applications. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

35. Tailoring the visible light photoactivity of un-doped defective TiO2 anatase nanoparticles through a simple two-step solvothermal process.

Author

Calatayud, David G, Flores, Raquel M, Castellanos-Aliaga, Ana, Peiteado, Marco, Palomares, Francisco J, Caballero, Amador C, and Jardiel, Teresa

Subjects
VISIBLE spectra, TITANIUM dioxide, SOLAR energy conversion, PHOTOCATALYSTS, CHARGE carriers, NANOPARTICLES
Abstract

Anatase TiO2 has become a material of great interest for photocatalytic production of hydrogen, environmental purification and solar energy conversion. Among the key parameters boosting the photocatalytic efficiency of the anatase nanoparticles, an increased light absorption to expand its optical response to the visible region, together with an improved charge separation of the photo-generated electrons and holes, can be enumerated. In this work, yellow-coloured, single-phase anatase nanoparticles have been obtained using a simple two-step solvothermal routine which requires no external addition of dopants, nor the use of a harassing/aggressive synthesis atmosphere. The obtained powders display a lowered bandgap (<3.0 eV) and significantly reduce the recombination processes, eventually leading to an improved photocatalytic performance under visible light, as exemplified by an enhanced degradation of phenol. This exceptional response is linked to the presence of intrinsic defects in the yellowish particles and, hence, the specific conditions of the proposed methodology become crucial to produce a propitious TiO2-defective nanomaterial capable of photo-degrade the phenol molecule, in contrast with the lack of photocatalytic activity currently exhibited by commercial photocatalysts under visible light. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

36. Dynamic magnetic properties of amorphous Fe80B20 thin films and their relation to interfaces.

Author

Urdiroz, U., Teixeira, B. M. S., Palomares, F. J., Gonzalez, J. M., Sobolev, N. A., Cebollada, F., and Mayoral, A.

Subjects
THIN films, MAGNETIC properties, MAGNETIZATION, ANISOTROPY, FERROMAGNETIC resonance
Abstract

We present a ferromagnetic resonance study of the dynamic properties of a set of amorphous Fe-B films deposited on Corning Glass® and MgO (001) substrates, either with or without capping. We show that the in plane anisotropy of the MgO grown films contains both uniaxial and biaxial components whereas it is just uniaxial for those grown on glass. The angular dependence of the linewidth strongly differs in terms of symmetry and magnitude depending on the substrate and capping. We discuss the role of the interfaces on the magnetization damping and the generation of the anisotropy. We obtained values of the intrinsic damping parameters comparable to the lowest ones reported for amorphous films of similar compositions. [ABSTRACT FROM AUTHOR]

Published
2020
Full Text
View/download PDF

37. Low temperature superspin glass behavior in a Co/Ag multilayer.

Author

Navarro, E., Alonso, M., Ruiz, A., Magen, C., Urdiroz, U., Cebollada, F., Balcells, Ll., Martínez, B., Palomares, F. J., and González, J. M.

Subjects
LOW temperatures, GLASS fibers, MAGNETIC properties, GLASS, PHASE transitions, PARAMAGNETIC materials
Abstract

We report on the low temperature magnetic behavior of an epitaxially grown multilayer formed by 32 repetitions of a nominal period corresponding to 1 monolayer (ML) Co and 16 ML Ag. The study of the magnetic properties was based on the measurement of the temperature dependencies of the dc magnetization upon field cooling (FC) and zero field cooling (ZFC) and of the ac field real and imaginary parts of the susceptibility. From our results we conclude about the occurrence of i) a well-defined bilayers stacking sequence matching the nominal one, ii) a discontinuous growth in the Co layers resulting on close-to-monodisperse, spherical Co nanoparticles having an average diameter of 1.6 nm, iii) a frequency dependent peak in the temperature dependence of the real part of the ac susceptibility exhibiting a per decade relative temperature variation of 4.5 x 10−2, iv) an applied dc field, Hdc, variation of the temperature at which the irreversibility is detected in the FC/ZFC curves corresponding to the Almeida-Thouless prediction, and v) a critical behavior characterized by a glass-transition temperature slightly below the peak temperatures observed at low frequency in the temperature dependence of the ac susceptibility and a dynamic scaling exponent in the range of the values usually obtained for spin glass systems. From our results we conclude that i) our sample experiences a superspin-glass/paramagnetic phase transition, ii) the interactions mediating the spin glass freezing process are the dipolar ones taking place among the Co particles (creating fields at the average interparticle distance of the order of 8 x 105 A/m) which provide competitiveness that combined with the reduced amount of disorder built-in the Co layers results on frustration. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

38. Directed Molecular Stacking for Engineered Fluorescent Three‐Dimensional Reduced Graphene Oxide and Coronene Frameworks.

Author

Mao, Boyang, Cortezon‐Tamarit, Fernando, Ge, Haobo, Kuganathan, Navaratnarajah, Mirabello, Vincenzo, Palomares, Francisco J., Kociok‐Köhn, Gabriele, Botchway, Stanley W., Calatayud, David G., and Pascu, Sofia I.

Subjects
FLUORESCENCE resonance energy transfer, ZINC porphyrins, METALLOPORPHYRINS, HOST-guest chemistry, ARYL group, WATER purification, MEMBRANE separation, GRAPHENE oxide
Abstract

Three‐dimensional fluorescent graphene frameworks with controlled porous morphologies are of significant importance for practical applications reliant on controlled structural and electronic properties, such as organic electronics and photochemistry. Here we report a synthetically accessible approach concerning directed aromatic stacking interactions to give rise to new fluorogenic 3D frameworks with tuneable porosities achieved through molecular variations. The binding interactions between the graphene‐like domains present in the in situ‐formed reduced graphene oxide (rGO) with functional porphyrin molecules lead to new hybrids via an unprecedented solvothermal reaction. Functional free‐base porphyrins featuring perfluorinated aryl groups or hexyl chains at their meso‐ and β‐positions were employed in turn to act as directing entities for the assembly of new graphene‐based and foam‐like frameworks and of their corresponding coronene‐based hybrids. Investigations in the dispersed phase and in thin‐film by XPS, SEM and FLIM shed light onto the nature of the aromatic stacking within functional rGO frameworks (denoted rGOFs) which was then modelled semi‐empirically and by DFT calculations. The pore sizes of the new emerging reduced graphene oxide hybrids are tuneable at the molecular level and mediated by the bonding forces with the functional porphyrins acting as the "molecular glue". Single crystal X‐ray crystallography described the stacking of a perfluorinated porphyrin with coronene, which can be employed as a molecular model for understanding the local aromatic stacking order and charge transfer interactions within these rGOFs for the first time. This opens up a new route to controllable 3D framework morphologies and pore size from the Ångstrom to the micrometre scale. Theoretical modelling showed that the porosity of these materials is mainly due to the controlled inter‐planar distance between the rGO, coronene or graphene sheets. The host‐guest chemistry involves the porphyrins acting as guests held through π‐π stacking, as demonstrated by XPS. The objective of this study is also to shed light into the fundamental localised electronic and energy transfer properties in these new molecularly engineered porous and fluorogenic architectures, aiming in turn to understand how functional porphyrins may exert stacking control over the notoriously disordered local structure present in porous reduced graphene oxide fragments. By tuning the porosity and the distance between the graphene sheets using aromatic stacking with porphyrins, it is also possible to tune the electronic structure of the final nanohybrid material, as indicated by FLIM experiments on thin films. Such nanohybrids with highly controlled pores dimensions and morphologies open the way to new design and assembly of storage devices and applications incorporating π‐conjugated molecules and materials and their π‐stacks may be relevant towards selective separation membranes, water purification and biosensing applications. [ABSTRACT FROM AUTHOR]

Published
2019
Full Text
View/download PDF

39. Ferromagnetic resonance and magnetooptic study of submicron epitaxial Fe(001) stripes.

Author

Paz, E., Cebollada, F., Palomares, F. J., González, J. M., Martins, J. S., Santos, N. M., and Sobolev, N. A.

Subjects
FERROMAGNETIC resonance, MAGNETOOPTICS, EPITAXY, CRYSTAL structure, ELECTRON beam lithography, FERROMAGNETISM
Abstract

We present a combined magnetooptic and ferromagnetic resonance study of a series of arrays of single-crystalline Fe stripes fabricated by electron beam lithography on epitaxial Au(001)/Fe(001)/MgO(001) films grown by pulsed laser deposition. The analysis of the films revealed a clear four-fold magnetocrystalline anisotropy, with no significant presence of other anisotropy sources. The use of a large series of arrays, with stripe widths between 140 and 1000 nm and separation between them of either 200 nm or 500 nm, allowed studying their magnetization processes and resonance modes as well as the effects of the dipolar interactions on both. The magnetization processes of the stripes were interpreted in terms of a macrospin approximation, with a good agreement between experiments and calculations and negligible influence of the dipolar interactions. The ferromagnetic resonance spectra evidenced two types of resonances linked to bulk oscillation modes, essentially insensitive to the dipolar interactions, and a third one associated with edge-localized oscillations, whose resonance field is strongly dependent on the dipolar interactions. The ability to produce a high quality, controlled series of stripes provided a good opportunity to achieve an agreement between the experiments and calculations, carried out by taking into account just the Fe intrinsic properties and the morphology of the arrays, thus evidencing the relatively small role of other extrinsic factors. [ABSTRACT FROM AUTHOR]

Published
2012
Full Text
View/download PDF

40. Combined x-ray photoelectron spectroscopy and scanning electron microscopy studies of the LiBH4-MgH2 reactive hydride composite with and without a Ti-based additive.

Author

Deprez, E., Muñoz-Márquez, M. A., De Haro, M. C. Jimenez, Palomares, F. J., Soria, F., Dornheim, M., Bormann, R., and Fernández, A.

Subjects
MICROSTRUCTURE, HYDRIDES, COMPOSITE materials, X-ray photoelectron spectroscopy, SCANNING electron microscopy
Abstract

A detailed electronic and microstructural characterization is reported for the LiBH4-MgH2 reactive hydride composite system with and without titanium isopropoxide as additive. Surface characterization by x-ray photoelectron spectroscopy combined to a morphological study by scanning electron microscopy as well as elemental map composition analysis by energy dispersive x-ray emission are presented in this paper for the first time for all sorption steps. Although sorption reactions are not complete at the surface due to the unavoidable superficial oxidation, it has been shown that the presence of the additive is favoring the heterogeneous nucleation of the MgB2 phase. Ti-based phases appear in all the samples for the three sorption steps well dispersed and uniformly distributed in the material. Li-based phases are highly dispersed at the surface while the Mg-based ones appear, either partially covered by the Li-based phases, or forming bigger grains. Ball milling is promoting mixing of phases and a good dispersion of the additive what favors grain refinement and heterogeneous reactions at the interfaces. [ABSTRACT FROM AUTHOR]

Published
2011
Full Text
View/download PDF

41. Magnetic and structural properties of spin-reorientation transitions in orthoferrites.

Author

Tsymbal, L. T., Bazaliy, Ya. B., Derkachenko, V. N., Kamenev, V. I., Kakazei, G. N., Palomares, F. J., and Wigen, P. E.

Subjects
ORTHOFERRITES, METALLIC oxides, CRYSTALLOGRAPHY, MAGNETIC measurements, PHASE transitions, LOW temperatures
Abstract

Magnetic and structural characteristics of ErFeO3, TmFeO3, and YbFeO3 single crystals were studied over a wide temperature range. Magnetic measurements found that the spin-rotation transitions in all crystals are well described by the earlier proposed theory with no fitting parameters. Additionally, they have shown the absence of the magnetic compensation point in TmFeO3 and a noticeable growth of the c-axis magnetization at low temperatures in TmFeO3 and ErFeO3. The x-ray measurements found no symmetry-lowering lattice distortions during the reorientation. Overall, the measurements cover a wide range of material parameters and demonstrate the generality of the modified mean field theory of the Γ4→Γ24→Γ2 orientation phase transitions in orthoferrites. [ABSTRACT FROM AUTHOR]

Published
2007
Full Text
View/download PDF

42. Anisotropic polymer bonded hard-magnetic films for microelectromechanical system applications

Author

Romero, J. J., Palomares, F. J., Hernando, A., Sastre, R., Gonzalez, J. M., Cuadrado, R., Pina, E., de Hoyos, A., and Pigazo, F.

Subjects
Physics
Abstract

Hard-magnetic films with thickness of up to tenths of millimeters were prepared by using a method that allows the development of a macroscopic magnetic anisotropy. The analysis of the temperature dependence of coercivity of the films revealed that the induced microscopic anisotropy was linked to the occurrence of columnar particle aggregates.

Published
2006

43. Photochemistry of a dumbbell-shaped multicomponent system hosted inside the mesopores of A1/MCM-41 aluminosilicate. Generation of long-lived viologen radicals

Author

Alvaro, Mercedes, Ferrer, Belen, Garcia, Hermenegildo, Palomares, Emilio J., Balzani, Vincenzo, Credi, Alberto, and Wenger, Sabine

Subjects
Aluminum silicates -- Chemical properties, Photochemistry -- Research, Chemicals, plastics and rubber industries
Abstract

The photophysical and photochemical behavior of a dumbell-shaped multicomponent system hosted inside the mesopores of A1/MCM-41 aluminosilicate is presented. The photochemical behavior of 2(super 6+) hosted in A1/MCM-41 differs from that in acetonitrile solution.

Published
2003

44. Prevalence, Identification, and Molecular Variability of Potato Cyst Nematodes in Algeria.

Author

Mezerket, A., Hammache, M., Cantalapiedra-Navarrete, C., Castillo, P., and Palomares-Rius, J. E.

Subjects
CYST nematodes, SOUTHERN root-knot nematode, POTATOES, CYSTS (Pathology), CYTOCHROME b
Abstract

The aim of the present study was to evaluate the geographical distribution, infestation degree, and diversity of Potato Cysts Nematode (PCN) in Algeria, including the southern regions. Accurate identification of PCN is essential to determine the appropriate control methods to be used in an Integrated Pest Management program. PCNs were found in forty percent (12 out of thirty) of localities sampled. The average population density of PCN was much higher in the southern regions, compared to the northern regions (9.8 cysts per 100 cm3 vs.4.6 cysts per 100 cm3). The southern potato production areas were more infested with PCN than those of the north (7 from 25 fields in North vs. 5 from 5 fields in the South). Globodera pallida occurred predominantly in the northern region of Algeria, whereas G. rostochiensis occurred predominantly in the southern regions. No mixtures of these species were found in any of the positive studied localities. These species were confirmed by the molecular analysis based on PCR with species-specific primers, ITS-rDNA, and cytochrome b of mtDNA. The low molecular diversity and their phylogenetic association with the European populations of PCN suggest that Algerian populations were probably introduced from Europe, probably by infested seed-potato. [ABSTRACT FROM AUTHOR]

Published
2018

45. Ferromagnetic resonance of ultrathin Co/Ag superlattices on Si(111).

Author

Kakazei, G. N., Martin, P. P., Ruiz, A., Varela, M., Alonso, M., Paz, E., Palomares, F. J., Cebollada, F., Rubinger, R. M., Carmo, M. C., and Sobolev, N. A.

Abstract

Ferromagnetic resonance (FMR) is used to probe the magnetic properties of Co/Ag superlattices (SLs) with ultrathin Co layers (2–6 Å). Different series of 5×[Ag/Co] multilayers have been grown by molecular beam epitaxy on Si(111) substrates, monitoring the growth by reflection high energy electron diffraction. Cross-section transmission electron microscopy confirms the growth of local areas with the designed SL periodicity, a sharp compositional modulation, well defined Ag–Co interfaces, and a perfect fcc (111) stacking. FMR spectra have been recorded at various polar angles in the 0°–90° range. A single and extremely broad resonance peak is observed in all cases. While SLs with Ag layers thinner than 10 Å exhibit similar values of the perpendicular anisotropy, a clear reduction is observed for samples with Ag layers about 14 Å thick. Possible causes for this change are discussed. [ABSTRACT FROM AUTHOR]

Published
2008
Full Text
View/download PDF

49. Top 10 plant-parasitic nematodes in molecular plant pathology

Author

Jones, J. T., Haegeman, A., Danchin, E. G. J., Gaur, H. S., Helder, J., Jones, M. G. K., Kikuchi, T., Manzanilla-Lopez, R. H., Palomares-Rius, J. E., Wesemael, W. M. L., and Perry, R. N.

Subjects
d2-d3 expansion segments, Plant Sciences, root-lesion nematode, PE&RC, nacobbus-aberrans thorne, radopholus-similis, grapevine-fanleaf-virus, knot nematodes, xiphinema-index, Laboratory of Nematology, Laboratorium voor Nematologie, bursaphelenchus-xylophilus, real-time pcr, expressed sequence tags
Abstract

The aim of this review was to undertake a survey of researchers working with plant-parasitic nematodes in order to determine a ‘top 10’ list of these pathogens based on scientific and economic importance. Any such list will not be definitive as economic importance will vary depending on the region of the world in which a researcher is based. However, care was taken to include researchers from as many parts of the world as possible when carrying out the survey. The top 10 list emerging from the survey is composed of: (1) root-knot nematodes (Meloidogyne spp.); (2) cyst nematodes (Heterodera and Globodera spp.); (3) root lesion nematodes (Pratylenchus spp.); (4) the burrowing nematode Radopholus similis; (5) Ditylenchus dipsaci; (6) the pine wilt nematode Bursaphelenchus xylophilus; (7) the reniform nematode Rotylenchulus reniformis; (8) Xiphinema index (the only virus vector nematode to make the list); (9) Nacobbus aberrans; and (10) Aphelenchoides besseyi. The biology of each nematode (or nematode group) is reviewed briefly.

Published
2013

50. Temperature dependence of the magnetic properties in LaMnO3+δ.

Author

Palomares, F. J., Pigazo, F., Romero, J. J., Cuadrado, R., Arroyo, A., García, M. A., Hernando, A., Cortés-Gil, R., González-Calbet, J. M., Vallet-Regí, M., González, J. M., and Alonso, J. M.

Subjects
*MANGANITE, *FERROMAGNETISM, *ANTIFERROMAGNETISM, *MAGNETISM, *MAGNETIC properties
Abstract

Data are presented on the thermal dependence of the hysteretic properties of cationic vacancies including manganite samples of composition LaMnO3+δ (δ=0.05 and 0.12). Our results evidence the presence in both samples of two magnetic phases having ferro- and antiferromagnetic orders, respectively. The temperature dependence of the coercivity and relaxational properties of the samples is closely linked to the connectivity of the magnetic moment bearing Mn3+–Mn4+ ferromagnetic clusters that demagnetize independently in the case of the δ=0.05 sample and collectively in that of the δ=0.12 one, as evidenced from the activation volume results (δ=0.05) which yielded a size of the same order magnitude as that obtained in previous works for the Mn3+–Mn4+ ferromagnetic cluster size. [ABSTRACT FROM AUTHOR]

Published
2006
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results