Cracow University of Technology posted this:Permanent antimicrobial properties on textile materials by staining them with modified indigo dyeThe inventionconcernsthe technology of modifying dyeing substance by binding it with antimicrobial agent. In particular, silver or zinc oxide nanoparticles are embedded into the structure of indigo dye. As-modified colouring agent serves to dyeingthe textile material which in turn gets constant antimicrobial properties.The advantage over existing technologies is due to the fact that silver nanoparticles are obtained in-situ in the process of formation indigo dye. Using environment friendly substances makes that the technology is safe.
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.
University of Vigo posted this:A novel mild and efficient method to prepare ε-Caprolactam precursor of Nylon 6ε-Caprolactam, the main precursor of the synthetic fibber Nylon 6, is prepared from cyclohexanone oxime by treatment with a new salt as promoter. This procedure requires mild reaction conditions and affords excellent levels of conversion and selectivity to obtain pure ε-caprolactam. No reaction by-products are formed. The new promoter salt is cheap, no corrosive, and easy to prepare. All these characteristics makes the procedure suitable for undustrial purposes.
UNIVERSIDAD DE ALICANTE posted this:New family of dyesThe main innovative aspects of this technology regarding current methods of synthesis are: • The indolizine dyes are obtained in one step from commercially available materials, unlike current procedures, which involve multiple steps. This is an advantage in the production process, as it reduces costs, increases the final yield and less waste is generated. • The procedure is based on a very simple treatment which produces indolizine dyes in yields higher than 70%. • The present invention does not require the use of inert atmosphere, dry solvents or physical activation (heat or radiation) to obtain the final product. • Unlike other methodologies for preparing indolizine dyes (requiring temperatures around 100°C), this process is carried out at room temperature and atmospheric pressure, which simplifies the method and decreases production costs. • This is an environmentally friendly technology because it does not use solvents such as dioxane, pyridine, chloroform or benzene, which are used in other methods and are characterized by their high toxicity and demonstrated carcinogenicity. • The selectivity of the reaction is very high. The indolizine dye is obtained with absolute control, obtaining a single isomer of the ten possible.
UNIVERSIDAD DE ALICANTE posted this:Weighted suit to enhance muscle developmentThe research group has developed a weighted suit that enhances muscle development. It is very simple: it improves ergonomics, avoids rubbing, it is easy to use (the suit can be worn throughout the day) and is designed to avoid injuries and pathologies and increase training time. The suit has weighted segments arranged proportionally over all the different parts of the user’s body (the exact arrangement is determined by personalised anthropometric studies). The group is seeking companies interested in acquiring and using the technology. Innovative features: The suit is fitted with weighted segments arranged proportionally over the different parts of the user’s body, leaving the head, hands, feet and main joints free. Each segment is allocated a greater or lesser load according to the user’s needs and the activity to be carried out. The arrangement of the weights is determined by personalised anthropometric studies using the Marfell-Jones methodology. The suit is ergonomic and avoids rubbing, is easy to use (it allows muscle development while the user is not training, thus saving time) and, most importantly, does not cause injuries or pathologies.