The University of Zaragoza, sometimes referred to as Saragossa University is a university located in Zaragoza, in the Aragon region of Spain. Founded in 1542, it is one of the oldest universities in Spain, with a history dating back to the Roman period. The university has over 40,000 students in its 22 faculties. The university is the only public university in the region. Its activity is spread along the three provinces of Aragon, with teaching campuses and research centres in Huesca, Teruel and Zaragoza. Wikipedia.
Roubeau O.,University of Zaragoza
Chemistry - A European Journal | Year: 2012
One-dimensional coordination FeII polymers constructed through triple N1,N2-1,2,4-triazole bridges form a unique class of spin-crossover materials, the synthetic versatility of which allows tuning the spin-crossover properties, the design of gels, films, liquid crystals, and nanoparticles and single-particle addressing. This Minireview provides the first complete overview of these very attractive switchable materials and their most recent developments. The spin-crossover toolbox: A complete and concise overview of all the spin-crossover [Fe(Rtrz)3][A]x systems reported is provided (Rtrz is a 4-substituted-1,2,4-triazole; A=monovalent anion). The structural and magneto-optical properties of these one-dimensional coordination polymers are summarised, as well as their implementation into other phases of matter or nanostructured objects. The most relevant and recent developments based on this very attractive class of switchable materials are highlighted. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source
Laguna-Bercero M.A.,University of Zaragoza
Journal of Power Sources | Year: 2012
New and more efficient energy conversion systems are required in the near future, due in part to the increase in oil prices and demand and also due to global warming. Fuel cells and hybrid systems present a promising future but in order to meet the demand, high amounts of hydrogen will be required. Until now, probably the cleanest method of producing hydrogen has been water electrolysis. In this field, solid oxide electrolysis cells (SOEC) have attracted a great interest in the last few years, as they offer significant power and higher efficiencies compared to conventional low temperature electrolysers. Their applications, performances and material issues will be reviewed. © 2011 Elsevier B.V. All rights reserved. Source
CSIC - Institute of Refrigeration, Gwr Instruments Inc. and University of Zaragoza | Date: 2013-03-13
A system and a method for liquefaction of gases which are utilized in their liquid state as refrigerants in applications that require low temperatures, throughout various pressure ranges, from slightly above atmospheric pressures to pressures near the critical point. The system and method are based on closed-cycle cryocoolers and utilize the thermodynamic properties of the gas to achieve optimal liquefaction rates.
Nanoimmunotech Srl and University of Zaragoza | Date: 2012-05-04
The present invention describes a method for producing multifunctional materials comprising the steps of: a) chemically activating functional groups present in a micro- or nanoparticulate base material; b) performing a nucleophilic substitution reaction between at least one terminal amino, carboxyl or thiol group of a PNA or DNA type A chain and at least one activated functional group of the base material produced in step (a); c) conjugating to a biomolecule by means of chemically activating functional groups of a PNA/DNA type B chain, which is complementary to the PNA/DNA type A chain; and d) hybridizing the PNA/DNA type A chains which are bound to the base material according to step b) and the PNA/DNA type B chains having biomolecules bound thereto according to step c) by means of PNA-PNA or PNA-DNA molecular recognition.
Quantum Design International Inc., University of Zaragoza and Consejo Superior De Investigaciones Cientificas | Date: 2014-09-25
A method and device for purifying a process gas mixture, such as a cryogen gas, in which impurity components of the mixture are removed by de-sublimation via cryo-condensation. The gas mixture is cooled to a temperature well below the condensation temperature of the impurities, by direct exchange of the gas mixture with a cooling source disposed in a first region of the device. The de-sublimated or frozen impurities collect about the cooling region surfaces, and ultimately transferred to a portion of the device defining an impurities storage region. The output-purified gas is transferred from the impurities storage region, is optionally passed through a first micrometer sized filter, through a counter-flow heat exchanger, and ultimately up to an output port at room temperature. A method of purging the collected impurities and regenerating the device is also disclosed.