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Cracow University of Technology posted this:New preparation method of silver nanoparticles suspension and silver nanoparticles suspension for medical, cosmetic and pharmaceutical application.Subject of this offer is the preparation method of silver nanoparticles suspension by reduction of silver salt by using reducing agent of natural origin and in the presence of a stabilizer. In this method, the following reducing agents are used apiproduct or extract of amber. The obtained nanoparticles can be applied in various industries, but the largest future is in the medical area, and as ingredient in cosmetic compositions due to the presence of non-toxic ingredients.
Cracow University of Technology posted this:Suspension containing gold or silver nanoparticles or a mixture thereof and a production method thereofThe present invention relates to a process for the preparation of nanosilver and nanogold using an aqueous extract of dog rose, white grape and knotweed. Substances which were extracted from these plants act both as reducer of silver and gold ions and stabilizing agent of forming silver and gold nanodispersion, preventing them from agglomeration and inhibiting their growth, so that the resulting particle size does not exceed 100 nm.
Cracow University of Technology posted this:Building and Architectural Acoustics LaboratoryBuilding and Architectural Acoustics Laboratory (BAAL) is a part of Building Physics Lab. Our mission is to help architects and structural designers make their buildings acoustically better. We also help building material manufacturers to develop or improve acoustical performance in their products. We offer consulting services in the field of acoustics from the design phase until final building or product testing.
Cracow University of Technology posted this:Low energy building design and thermal refurbishment of existing buildingsOUR MAIN GOALS Tools and good practice procedures for low energy building design, enabling to reduce demand on heating and prevent cooling demand while maintaining high indoor air quality. Because of the big volume of poor quality prefabricated apartment buildings, that still exist in Poland, one of our goals is also to elaborate a scenario of holistic revitalisation of those buildings in accordance with the requirements of sustainable development.
Cracow University of Technology posted this:Laboratory of Photochemistry and Optical SpectroscopyDesign and synthesis of new photoinitiators dedicated for cationic, free-radical and hybrid photopolymerization. The research are performed to improve the speed of the curing processes of polymer coatings by developing innovative polymerization photoinitiators having a very better parameters than those already used in industry. The search for more effective initiators are fully justified from the practical point of view in industry photocurable polymer coatings.
Technology Transfer Office
USP Innovation Agency posted this:PROCESS TO OBTAIN SILVER NANOPARTICLES, SILVER NANOPARTICLES AND THEIR USESRecent data published by the World Health Organization (WHO) shows that every year 8, 8 million people died from cancer around the world. Therefore, the development of new technologies more efficient, chipper and environmentally-friendly for the treatment of this disease it is currently a very relevant goal. This invention is about a new methodology of synthesis of silver nanoparticles, in observance of the green chemistry and by using seaweed extracts as reducing agent of silver ions.
University of Vigo posted this:Pyridazin-3(2H)-one Derivatives as Selective Inhibitors of Monoamine Oxidase-B Isoform (MAO-B)The pyridazine ring is a privileged fragment found in compounds with very different pharmacological properties, such as antihypertensive, antiplatelet, anti-inflammatory, antinociceptive, antidepressant, hypoglycemic, antiinfective or anticancer agents, many of them being pyridazin-3(2H)-one derivatives. The pyridazine ring is also included in polycyclic compounds acting as MAO-B inhibitors. However, simple pyridazin-3(2H)-one derivatives have not been described so far as selective MAO-B inhibitors. The present invention provides novel pyridazin-3(2H)-one derivatives substituted at C4, C5 or C6 with several dithiocarbamate moieties that selectively inhibit the MAO-B activity and whose structure is unrelated to those currently available.
University of Vigo posted this:New non-destructive method for “in situ” monitoring of anticorrosive protection of organic coatingsThe main novelty of the device and procedure is the new portable sensor adaptable to virtually any surface. The device, fixable by vacuum to the surface under study, makes possible the measurement of the electrochemical interfacial impedance, that is the main parameter of interest for adherence quality and anti-corrosion performance.
University of Vigo posted this:Procedure for the extraction of biosurfactants contained in corn steep liquorsNowadays, most of the pharmaceutical and cosmetic products in the market contain chemically synthesized surfactants in its composition. In many cases, these surfactants are the same as those used in regular cleanup activities. In order to get more natural and biocompatible products, it would be interesting to include natural surfactants instead of chemical surfactants in the preparation of these pharmaceutical and cosmetic products. These biosurfactants are also present in the formulation of greener nanoparticles, replacing the chemical surfactants currently used in the preparation thereof. Most biosurfactants have antimicrobial activity, which would improve the properties of certain nanoparticles, as well as many pharmaceutical and cosmetic products. The main disadvantage of biosurfactants industrial production is related to the high cost compared to chemically synthesized surfactant production. The solution proposed by the Chemical Engineering research group at the University of Vigo, is the development of eco-friendly simple extraction of biosurfactant from a corn wet-milling industry byproduct, such as corn wash liquors, better known as "corn steep liquor (CSL)", which could compete in terms of cost production with its chemical counterparts.
University of Vigo posted this:New sustainable adsorbent for bleaching efficient industrial effluentsMany industries, such as those belonging to the textile, wine, and paper industry, consume huge volumes of water and, as a result, generate a large amount of contaminated water containing persistent colour pollutant compounds. These compounds represent an environmental and health threat due to their well-known associated problems, such as carcinogenicity, toxicity and mutagenicity. Furthermore, they entail a great environmental impact when discharged in aquatic environments, perceptible at very low concentrations, creating an undesirable visual impact, which, in many cases, does not meet the degree of conformity under the current directives on the wastewater treatment for industrial effluents (Directive 91/271 / EEC). The solution proposed by the research group Chemical Engineering at the University of Vigo, is the use as adsorbent of peat, or a similar lignocellulosic material, immobilized in calcium alginate beads. This process is efficient, cheap and environmentally friendly, unlike other processes and technologies. In fact, the utilization of peat instead of activated carbon as industrial adsorbent has the advantage that peat requires no activation, unlike activated carbon, reducing operating costs. In addition, the low cost of the adsorbent would be translated into significant economic benefits. Moreover, depending on the contaminant removed from the waste effluent, the exhausted adsorbent may be used as soil fertilizer at its end of life.
University of Vigo posted this:Diagnosis and cleaning using laser technology for the restoration of historical monumentsSince ancient times granite has been used in historic buildings. Some restorers used to apply molten beeswax on their granite surfaces to stop imminent deterioration of the monuments. At first, this treatment was a good solution to consolidate the stone, but with time it resulted counterproductive. This method allows removal and cleaning of wax and other contaminants from porous stones in historical monuments and artworks using nondestructive means through laser technology.