Chemistry Technology Offers

Universidad de Alcalá-OTRI posted this:

The research group in Bioelectrochemistry and Biosensors of the University of Alcalá in collaboration with the Textile Industry Research Association (AITEX) has developed an electrochemical sensor of magnesium (Mg2 +) and a construction method based on the formation of a polymeric three-dimensional network that allows the entrapment / immobilization of a selective indicator for Mg2 +, eriochrome black T, by the use of a crosslinking agent and a polymer. The combination of these three reagents allows the construction of the sensor on any conductive surface, avoiding the electro polymerization of the indicator. The resulting sensor allows to measure MG2 + in any type of samples, without the need to add organic salts, additives or organic solvents. The quantification of Mg2 + is done directly by incubating the sensor in the sample containing the analyte, resulting in a modification of the amperometric signal proportional to its concentration. This method has many applications especially in health and biomedical sector since Mg2 + participates in such important activities as neuronal, neuromuscular transmission, or regulation of blood pressure and plays a key role in various pathologies such as vascular and migraines headache. The group is looking for companies in the agro-food, bio-sanitary and environmental sectors, with the aim of reaching technical collaboration agreements, commercial agreements or patent licenses.
Development and method of construction of a new electrochemical sensor of Magnesium (Mg2 +), without the need to add organic salts, additives or organic solvents to the sample

Sandra Moczulska posted this:
Technology Broker at Technology Transfer Office (University of Warsaw)

The olefin metathesis reaction has many advantages, the most important of which is the fact that it shortens the synthesis path by reducing the number of required steps and this lowers the cost of obtaining the target product. Unfortunately, the industrial application of the olefin metathesis reaction (especially in the production of macrocyclic rings in the RCM reaction) is currently experiencing difficulties such as: - lack of selectivity and product competition (a major problem with RCMs leading to large macrocyclic rings to minimize the problem of high dilution, but it clearly increases the cost of the process) - displacement of reaction equilibrium (RCM reaction is an equilibrium process, so to move the process towards the formation of products it is necessary to react under reduced pressure) - migration of double bond C = C (migration within the substrates as well as target product due to side reactions. This inconvenience can be eliminated by using, for example, quinones - unfortunately, this elimination is only partial.) - the need to use a homogeneous ruthenium catalyst (a large amount of catalyst is required to reach the reaction, reaching over 20 mol%). The present invention relates to a process for the production of cyclic compounds in the olefin metathesis reaction and the use of ruthenium catalysts for the production of cyclic olefins in olefin metathesis reactions. The solution through optimization, overcomes the current problems. The expected product is obtained with high efficiency and selectivity. The method can find extensive use in organic synthesis, requiring metathetic ring closure (RCM), among others in the fragrance industry. Advantages of the presented solution from UW: 1. high process efficiency 2. high selectivity 3. low cost of synthesis