Abstract:
The present invention relates to an improvement to the treatment of needles for safe disposal. The device (300) comprises a support member (303) having at least one recess (304). Each said at least one recess is configured to receive a needle contained in a corresponding plastic needle cap. The device further comprises a heating element configured to heat the support member, such that the plastic material of the needle cap softens and flows to encapsulate the corresponding needle. Each said at least one recess has dimensions such that, after heating, the needle is fully encapsulated by the plastic material of the corresponding needle cap. A corresponding method is disclosed.
Abstract:
Described herein is a method to increase ethanol yield during alcoholic fermentation by expression a truncated versions of the Saccharomyces cerevisiae PHO8 gene coding for vacuolar or cytosolic form of alkaline phosphatase, which expression lowers biomass accumulation while diverting greater carbon to ethanol production. Also described are as nucleic acid sequences and vectors for expression of the PHO8 gene and strains carrying the same. Strains containing intact PHO8 gene encoding vacuolar form of alkaline phosphatase, had slightly lower intracellular ATP levels with insignificant changes in biomass accumulation and up to 13% increase in ethanol production.
Abstract:
Methods for forming ammonium salts of C4 diacids in a fermentation process with removal of divalent metal carbonate salts are disclosed. The pH of fermentation broths for production of C4 diacids is controlled by adding alkaline oxygen containing calcium or magnesium compounds, which forms divalent metal salts of the diacids. The divalent metal salts of the diacids are substituted with ammonium by introduction of ammonium salts at elevated temperature and pressure forming soluble ammonium salts thereof. C02 or bicarbonate is simultaneously added to the fermentation media at the elevated temperature and pressure. Reducing the temperature and pressure forms insoluble divalent metal carbonate salts that are separated from the solubilized ammonium diacid salts. The recovered carbonate salts can be recycled as pH control matelials in subsequent fermentations. The solubilized ammonium diacid salts may form the derivatives N-methyl-2-pyrrolidone (NMP) gamma-butyrolactone (GBL) and 1,4-butane-diol (BDO) in single pot reactions.
Abstract:
The invention is directed to an acousto-optic lens (AOL) and corresponding method. The AOL of the invention comprises a first and second acousto-optic deflector, each being arranged to support a respective acoustic wave. The AOL includes a driver for synthesizing first and second drive signals for the respective first and second acousto-optic deflectors. The driver is arranged to synthesize the drive signals so as to be phase-modulated by functions that can be expressed as a Taylor series having one or more coefficients greater than second order. The functions are preferably non-sinusoidal and have sufficient magnitude at the higher orders to effect one or more of fixed aberration correction, dynamic aberration correction and Z-scanning.
Abstract:
Described herein are single step methods of making various classes of alkylamine derivatives of furan and tetrahydrofuran by simultaneous contact of a sugar with H 2 , an acid catalyst and hydrogenation catalyst in the presence of an alkylamide solvent. The hydrogenation catalyst is a heterogeneous catalyst comprising a metal selected from the group consisting of Pt, Pd, and nickel. The acid catalysts may be homogeneous mineral acid or a heterogeneous acid catalyst on substrate. In a preferred practice the two catalysts are provided on a common heterogeneous bifunctional support. Using similar combinations of acid and hydrogenation catalysts, there is also described single step methods for making furandimethanol by simultaneously contacting a hexose with the two separate catalysts in the presence of H 2 in an aprotic solvent, such as dimethylformamide. With the same catalyst system and similar reaction conditions, 2, 5 furan dialkylethers can also be made in a single step when the solvent includes an ROH alcohol.
Abstract:
CD73 may be used as a prognostic marker to detect the recurrence of triple negative breast cancer in patients who have undergone a cancer therapy, in particular a chemotherapy based treatment. There is provided a method for diagnosing or predicting the recurrence of triple negative breast cancer in a subject who has undergone a cancer therapy, the method the comprising (i) obtaining a triple negative breast cancer cell sample from the subject; and (ii) detecting CD73 activity or expression in a cell of the sample, wherein increased activity or expression of CD73 in the cell, when compared to a normal breast tissue cell, indicates that the subject has or is at risk of developing recurrent triple negative breast cancer. There is also provided a method for predicting the efficacy of a triple negative breast cancer therapy in a subject comprising: (i) administering a cancer therapy to the subject; (ii) obtaining a triple negative breast cancer cell sample from the subject; and (iii) detecting CD73 activity or expression in a cell of the sample, wherein decreased activity or expression of CD73 in the triple negative breast cancer cell, when compared to a triple negative breast cancer cell of the same type prior to therapy, indicates that the therapy is efficacious.
Abstract:
A method for non-invasive determination of oxygen saturation of blood within a deep vascular structure of a human or animal patient comprising locating on skin of the patient in a vicinity of the deep vascular structure of interest emitter and receiver elements of a light oximeter device, wherein optimal location of said elements is achieved through matching of a plethysmography trace obtained from the oximeter device to known plethysmography characteristics of the deep vascular structure of interest, wherein the emitter element emits light at wavelengths of from about 1045nm to about 1055nm and from about 1085nm to about 1095nm, and wherein oxygen saturation is determined from a ratio of light absorbed at these two wavelengths by haemoglobin in blood within the vascular structure of interest.
Abstract:
In one embodiment the invention relates to a filter media for removal of contaminants from water comprising aluminium coated granular activated carbon and granular zeolite. Another embodiment relates to a method of producing aluminium coated granular activated carbon comprising exposing granular activated carbon to an aqueous solution comprising one or more aluminium salts which is acidified to a pH of between about 5 and about 6.8, removing the aqueous solution and washing and drying the aluminium coated granular activated carbon that is produced. Further embodiments relate to: a filter system for removal of contaminants from water comprising (i) a middle zone comprising granular activated carbon and granular zeolite and (ii) a lower barrier zone comprising screening material, wherein the system allows a flow rate of water there through of from about 0.5Lsec-1m -2 to about 10Lsec -1 m -2 ; a cartridge containing the filter system and related methods of removing contaminants from water.
Abstract:
This invention relates to a method of assaying a compound for its ability to modulate an ion channel or receptor type, the method comprising: a) providing a dynamic clamp in electrical contact with a biological cell (or part thereof) in which one or more ion channel or receptor types for providing a waveform are functional and in which one or more ion channel or receptor types for providing a waveform are either not present or not functional; b) causing the dynamic clamp to apply a signal simulating the function of at least one of the one or more ion channel or receptor types that are either not present or not functional in the biological cell (or part thereof) based on modulation of the ion channel or receptor types that are functional in the biological cell (or part thereof) to thereby provide the waveform at the biological cell (or part thereof); c) exposing at least one of the one or more functional ion channel or receptor types to a compound; and d) detecting modulation of the waveform at the biological cell (or part thereof), wherein modulation of the waveform is indicative of a compound that modulates the at least one functional ion channel or receptor types.
Abstract:
This invention relates to antiviral agents, in particular to salts useful in the treatment of infections caused by Picornaviridae, such as human rhinovirus (HRV) and methods for their preparation. The invention also relates to the use of these salts in the treatment of picornavirus infections. The salts of this invention are especially suitable for use in the treatment of HRV, however it is to be understood that the invention is also applicable to other viruses of the picornavirus family.