Find the latest Innovations, Patents and Knowhow from top scientistsand innovators in Physical Sciences and Exact Sciences, Nanotechnology, Modelling and Optics
Universitat de València posted this:Micromechanical dry exfoliation deviceThe main advantages provided by the invention are: Versatility: the method is applicable to any layered material and on any type of substrate. Simplicity: the method consists in a dry exfoliation without adhesive materials. Quality and reproducibility: the exfoliation is clean (no trace of adhesive), reproducible and it does not produce defects in the substrate. Efficiency: it is possible to deposit a high density of atomically thin layers of the material. Control: it is possible to control the pressure exerted, allowing for a fine-tuning of the deposition conditions depending on the nature of the layered material manipulated.
Universitat de València posted this:BioCalibra: Device for activated sludge models calibrationThe device has the following advantages over existing techniques: Improves WWTP simulations: allows simulation of calibrated WWTP with only the adjustment of influent characteristics. High efficiency: allows the calculation of the most important set of parameters for the activated sludge model with the minimum of experimental effort User friendly software: all elements are controlled by the calibration software that can be installed on any conventional computer.
Universitat de València posted this:Nitrogen removal control system based on low-cost sensorsThis control system allows optimization of the activated sludge process since maintains effluent nitrogen concentration under limit values with minimum energy consumption. The most remarkable advantages provided by this technology are: Cost reduction of initial investment and maintenance Easier operation than nutrient analysers Lower time response Lower aireation energy consumption Lower pumping energy consumption
Universitat de València posted this:Nanocomposites for electrochemical supercapacitorsThe new materials have the following advantages over existing materials in supercapacitor’s sector: Supercapacitive properties: they have specific capacitance values much higher than those obtained by commercial nanostructured carbon electrodes. Low cost: obtained by a chemical process of a single stage, with a single precursor, at low temperature, and highly available, non-polluting and low cost materials. Good cyclability: testing in cyclability is promising in terms of electrochemical and mechanical stability. In parallel to its advantages as supercapacitors, the nanocomposites show the advantages associated with the following additional properties: Giant magnetoresistance, GMR: this property is observed at room temperature, and high magnetic fields are not needed. Source of carbon nanoforms: based on the nanocomposite, can be obtained a mixture of carbon nanoforms consisting of nano-onions and multi-walled nanotubes.
Universitat de València posted this:Passive sampler for monitoring atmospheric pollutants (VERAM)The most remarkable advantages provided by this technology are: o Versatility, it is possible to sample a big number of pollutants using a single device containing a combination of solid phases. o Greater adsorption capacity and high analytic sensitivity with smaller sampling time than market available devices. o Rapidity and low cost of pollutant analysis. Thermal desorption and head space injection minimize sample handling, do not require the use of solvents and reduce the time of analysis. o Cheap passive samplers with a fast and simple fabrication procedure. o VERAM permits a multidirectional sampling differing from radial or one-way sampling devices with encapsulated solid phases.
Universitat de València posted this:New method for the synthesis of inert metallic nanoparticlesThe most remarkable advantages provided by this technology are: • Rapidity of the metallic nanoparticle synthetic method, as it consists of only one step. • Efficiency, since size, shape and concentration of nanoparticles are controlled, as well as, their production in organic or inorganic soluble solution. • Reduced production costs, as high temperatures are required by other alternative laser ablation methods.
Universitat de València posted this:Magnetic In-Tube Solid Phase MicroextractionThe device has the following advantages over existing equipment: Allows quantitative extraction efficiency, solving one of the main drawbacks of IT-SPME systems Broadens applicability of IT-SPME thus making available its advantages (automation, precision) to specific analyses that require high sensitivity of analytes estimation.
Universitat de València posted this:Passive sensor for in situ detection of amines in atmospheres Simplicity and ease of use: it is a passive colorimetric sensor that does not require any kind of pretreatment or power supply or external instrument. Low cost: simple fabrication process without high costs Low detection limits: suitable for use in real atmospheres, of the order of 3 mg/m3. Quantitative detection: direct quantitative detection can be carried out by diffuse reflectance of the sensors. Stability: against a wide range of temperatures and to humidity and solar radiation. Reversion resistance.
Universitat de València posted this:Sample collection devices of atmospheric pollutants with high performanceThe main advantages provided by the invention are: Simplicity and reproducibility in the synthesis of the new compound, due to one step synthesis process with simultaneous addition of all reagents. It isn’t necessary the removal of CDs, and it hasn’t intermediate compounds between silica and CDs. It allows the access to VOCs without any post-treatment. Adaptability of the compound to the requirements of each sample collection devices, adjusting the grain size by milling and using appropriate sieves. Procedure cleaner, safer and more economic, since it reduces the generation of toxic waste and the risk of contamination of workers. Reduce analysis time since desorption of pollutants retained in the sample collection devices can be thermal. Retention of pollutants is more independent of environmental conditions than commercial devices.
Universitat de València posted this:Software for atmospheric gases compensation in infrared spectra• Easy to use: a blank spectrum with water vapor, CO2 and other interfering vapours has to be obtained under the same measurement conditions as those employed for the acquisition of the spectra to be corrected, straightforward selection of relative absorbance values • Fast: very fast computation as the algorithm is not complex • Universal: the compensation method can be applied in a vast amount of situations (different samples and sampling devices, different measurement conditions). Compensation of other gases different to H2O and CO2. • This method do not use spectra smoothing, avoiding distortion of infrared bands from the analytes. • Improvement of the results obtained employing commercially available software tool.
Universitat de València posted this:Environmentally friendly colorimetric sensors for detecting hydrogen cyanide (HCN)The main advantages provided by the this colorimetric sensor are: - Detection Limits: The direct reaction between the sensor and the HCN leads to a marked color change with detection limits below 1 ppm. - Selectivity: in the presence of other gases such as CO, HCl, NH3, H2S, at concentrations up to 50 ppm - Environmentally friendly: no heavy metals used. - Reversibility: The reaction is reversible by irradiation with UV light so it can be reused in successive cycles - Minimizing false positives: Regeneration by UV radiation occurs only if the sensor reacted with HCN.
Universitat de València posted this:New method for the production of metallic oxides with spinel structureThis procedure is faster, with lower energy consumption and generates purer spinels than known methods for spinel production. With this invention, it’s possible to provide new methods for obtaining spinels or other mixed oxides with a higher processability and versatility than those existing to date, allowing also for obtaining new spinels and removing the need for extremely costly phases in time or energy, including milling or heating at temperatures up to 1200ºC.
Universitat de València posted this:Light-Emitting Electrochemical Cells based on ionic dyesThe use of ionic dyes leads to materials that do not suffer from compatibility issues and allows for a much more economic production of LECs. These dyes are known for many years and used in applications such as photographic films and recordable DVD discs, and are produced in large quantities at low cost. Some examples of suitable ionic organic dyes are cyanine, hemicyanine and squarilene dyes.
Universitat de València posted this:Method for producing nanocorundumResearchers from Geology Department of University of Valencia have developed a novel method for producing corundum of low crystallinity (nanocorundum) using natural or synthetic commodities in solid state, without pre-treatment. The process of the invention makes it possible to obtain a product with a nanocrystalline nature, composed of tabular- or plate-shaped primary nanoparticles in porous microcrystalline aggregates, which facilitates the subsequent disaggregation process thereof into powders that have an immediate application as ultra-fine abrasives and as loads (or fillers) in plastics or other types of materials. This characteristic represents a significant advantage of the product of the invention, since compact corundum is a hard, difficult-to-grind material.
Centre Technology Transfer CITTRU posted this:Visible light photoactive materials based on modified nanocrystalline titanium dioxide for disinfection and sterilizationTitanium dioxide based materials are commonly known as photocatalysts of environmental and biomedical relevance. Photoactive TiO2 irradiated with ultraviolet light shows antiseptic, fungicidal, disinfecting and odour-neutralizing properties. It can be used for production of self-cleaning surfaces as well as disinfection, sterilization or odour-neutralizing agents. Currently used TiO2 material are active only with UV light. Modification of the material done by research team of the Jagiellonian University allows to activate TiO2 with use of visible light.