Flow detectors having mechanical oscillators, and use thereof in flow characterization systems

An improved system (100), resonator flow detector (102) and method for characterizing a fluid sample that includes o injecting a fluid sample into a mobile phase of a flow characterization system (106), and detecting a property of the fluid sample > or of a component thereof with a flow detector (102) comprising a mechanical resonator (120), preferably one that is operated at a frequency less than about 1 MHz, such as tuning fork resonator

Oral composition

Oral care composition comprising a polymer obtainable by copolymerising a mixture of comonomers, from 5 to 95 mol % of the mixture of comonomers is constituted by a como no mer having the formula (I): (I) in which R is hydrogen or a methyl group, L is a divalent organic linking group incorporating a benzylor a carboxyl functionality, n is an integer of from 1 to 4 and Y is an amine, quaternized amine or quaternary ammonium group; and in which the balance of the mixture of co monomers is constituted by neutral and/or anionic comonomers; said composition being in the form of anyone of a toothpaste, gel, foam, chewing gum, deformable strip or mouthwash and being suitable for use in the oral cavity

Method and apparatus for screening flowable separation media for electrophoresis and related applications

A method and apparatus are disclosed for screening separation media for performance in capillary electrophoresis. In one aspect the invention comprises concurrently loading a plurality of capillaries from one corresponding end of each with a respective plurality of separation media, adding a sample to each capillary, advancing the samples through the capillaries under an applied electric field, measuring a property of the samples or components thereof as they advance through the capillaries, and using the measured properties to identify one or more preferred sets of separation media. At least one of the steps of loading or advancing are carried out simultaneously over the plurality of capillaries

Oral composition

Oral care composition comprising a polymer obtainable by copolymerising a mixture of comonomers, from 5 to 95 mol % of the mixture of comonomers is constituted by a como no mer having the formula (I): (I) in which R is hydrogen or a methyl group, L is a divalent organic linking group incorporating a benzylor a carboxyl functionality, n is an integer of from 1 to 4 and Y is an amine, quaternized amine or quaternary ammonium group; and in which the balance of the mixture of co monomers is constituted by neutral and/or anionic comonomers; said composition being in the form of anyone of a toothpaste, gel, foam, chewing gum, deformable strip or mouthwash and being suitable for use in the oral cavity

Fosforany Ukrainy jako surowce do produkcji nawozów mineralnych i środków polepszających

The article analyzes the present state of the phosphate raw material base to meet Ukrainian chemical enterprises’ needs. In Ukraine, a number of complex apatite and phosphorite deposits have been explored. Their exploitation can lead to a complete supply of Ukrainian chemical enterprises with raw materials and can partly reduce the amount of expensive imported phosphate mineral fertilizers. At present, the following deposits, where apatite is connected with other useful components, are prepared for exploitation: Stremyhorod, Fedorivka, Novopoltavka, Kropyvna and others. The advantage of the development of these deposits is the possibility to extract apatite along with the production of rare earth concentrates, ilmenite, titanomagnetite, as well as feldspars, olivine, pyroxenes, mica and others which will significantly increase the profitability of the deposits development. The alternative to apatite-containing deposits in Ukraine can be sedimentary deposits of nodule, granular and mixed type phosphorites. Phosphorite deposits can be used mainly for the production of phosphorite and limestone flour. Considerable resources of granular phosphorites have been discovered in Volyn-Podillia and Dnieper-Donetsk which are considered to have a various agricultural effect. They are environmentally friendly ores without impurity which prevents plants from cesium, strontium and reduces nitrates in the soil. Arranging the exploration of phosphorite ores in certain parts of Volyn-Podillia basin and Dnieper-Donets Rift is recommended.W artykule przeanalizowano obecny stan bazy surowcowej fosforanów celu zaspokojenia potrzeb ukraińskich przedsiębiorstw chemicznych. Na terenie Ukrainy odkryto kilkanaście złóż apatytu i fosforytu. Ich eksploatacja może doprowadzić do pełnego zaopatrzenia ukraińskich przedsiębiorstw chemicznych w te surowce i może częściowo zmniejszyć ilość importowanych drogich nawozów fosforowych. Obecnie do eksploatacji przygotowywane są następujące złoża, w których apatyt jest związany z innymi pożytecznymi składnikami: Stremyhorod, Fedorivka, Novopoltavka, Kropyvna i inne. Zaletą zagospodarowania tych złóż jest możliwość wydobywania apatytu wraz z produkcją koncentratów ziem rzadkich, ilmenitu, tytanomagnetytu, a także skaleni, oliwinu, piroksenów, miki i innych, co znacznie zwiększy opłacalność rozwoju złóż. Alternatywą dla złóż zawierających apatyt na Ukrainie mogą być złoża osadowe fosforytów grudkowych, granulowanych i mieszanych. Złoża fosforytów można wykorzystać głównie do produkcji fosforytu i mąki wapiennej. Ponadto na Wołyniu Podolskim i Dnieprze-Doniecku odkryto znaczne rezerwy fosforytów ziarnistych, które mają różne zastosowanie rolnicze. Są to przyjazne dla środowiska rudy bez zanieczyszczeń, które zapobiegają tworzeniu się cezu, strontu i redukują azotany w glebie. Zaleca się dalsze poszukiwania rud fosforytów w niektórych częściach dorzecza Wołynia Podolskiego i Rowu Dniepr-Doniec

Combinatorial exploration of polymeric transport agents for targeted delivery of bioactives to human tissues.

Summary: Recently, in material science domain, combinatorial approaches in design, construction and screening of novel compounds and formulations have led to a significant acceleration of discovery and development. The versatility of polymeric materials offers a great opportunity to dial-in a desired set of performance features via a proper combination of various building blocks such as monomer units or polymer chain segments. Further enhancement comes from the formulation of the polymer into its final environment in a combinatorial way. Within the last few years, a variety of parallel polymerization, purification and formulation techniques, supported by rapid automated analyses in combination with a suite of high-throughput protocols for application-related benefit screening, were developed and successfully applied in different fields of industry. At Symyx Technologies Inc., we have integrated a variety of synthesis, screening and information tools and procedures into robust workflows, targeting discovery and development of novel polymeric materials. In addition to the performance features of the polymeric materials, controlled by their chemical, physical and mechanical properties, we can monitor interactions of polymers with a variety of molecules and substrate surfaces. That allows us to extend the applicability of the combinatorial approach towards the macromolecular delivery agents with a wide range of use in personal care, biotech and pharma areas. The current paper reports on a generic workflow developed and applied for identification of selective transport agents for targeted delivery of bioactives to human tissues