VIVACTA LIMITED Patent applications |
Patent application number | Title | Published |
20150108010 | METHOD AND DEVICE FOR MEASURING COAGULATION IN A SAMPLE OF A BLOOD PRODUCT - This invention relates to a method for measuring coagulation in a sample of a blood product comprising: providing a transducer ( | 04-23-2015 |
20150064711 | ASSAY LABEL - This invention relates to an assay label comprising an amorphous carbon particle, a functionalised dextran polymer attached to the surface of the carbon particle and a first member of a complementary binding pair covalently bonded to the functionalised dextran polymer. The invention also provides a device incorporating the assay label, which further comprises a radiation source adapted to generate a series of pulses of electromagnetic radiation at a wavelength such that the absorption of the radiation by the label generates energy by non-radiative decay; a sample chamber containing a transducer having a pyroelectric or piezoelectric element and electrodes which is capable of transducing energy generated by non-radiative decay into an electrical signal; and a detector which is capable of detecting the electrical signal generated by the transducer. | 03-05-2015 |
20140119995 | DEVICE FOR DETECTING AN ANALYTE - This invention relates to a device for detecting an analyte in a sample comprising: a radiation source adapted to generate a series of pulses of electromagnetic radiation; a transducer having a pyroelectric or piezoelectric element and electrodes which is capable of transducing energy generated by non-radiative decay into an electrical signal; a detector which is capable of detecting the electrical signal generated by the transducer; a first reagent proximal to the transducer, the first reagent having a binding site which is capable of binding a labelled reagent proportionally to the concentration of the analyte in the sample, which labelled reagent being capable of absorbing the electromagnetic radiation generated by the radiation source to generate energy by non-radiative decay; a second reagent proximal to the transducer, the second reagent having a lower affinity for the labelled reagent under the conditions of the assay than the first reagent; and a third reagent proximal to the transducer, the third reagent having a binding site which is capable of binding the labelled reagent, wherein the third reagent has an affinity for the labelled reagent which is less influenced than the first reagent by the concentration of the analyte or the complex or derivative of the analyte. | 05-01-2014 |
20130315783 | SENSOR - A device for detecting an analyte in a sample, which includes a radiation source adapted to generate electromagnetic radiation; a transducer capable of transducing a change in energy to an electrical signal; at least one tethered reagent on or proximal to the transducer, the tethered reagent having a binding site which is capable of binding the analyte; a chamber for holding the sample in fluid contact with transducer, wherein the chamber is adapted to contain the sample on inversion, partial inversion or agitation of the device; and a detector which is capable of detecting the electrical signal generated by the transducer. | 11-28-2013 |
20120034636 | CHEMICAL SENSING DEVICE - This invention relates to a chemical sensing device for detecting an analyte. The device comprises a light source, at least one luminescent reagent which is capable of luminescing when irradiated by the light source wherein the luminescence of the luminescent reagent is modifiable by the analyte thereby changing the generation of heat, which change in heat generation is proportional to the concentration of the analyte, a transducer having a pyroelectric or piezoelectric element and electrodes which is capable of transducing the change in heat to an electrical signal, and a detector which is capable of converting the electrical signal into an indication of the concentration of the analyte. The invention also relates to a method for detecting an analyte. | 02-09-2012 |
20110182776 | SENSOR - The present application relates to a sensor ( | 07-28-2011 |
20080199970 | Chemical Sensing Device - This invention relates to a chemical sensing device for detecting an analyte. The device comprises a light source; at least one luminescent reagent which is capable of luminescing when irradiated by the light source wherein the luminescence of the luminescent reagent is modifiable by the analyte thereby changing the generation of heat, which change in heat generation is proportional to the concentration of the analyte, a transducer having a pyroelectric or piezoelectric element and electrodes which is capable of transducing the change in heat to an electrical signal, and a detector which is capable of converting the electrical signal into an indication of the concentration of the analyte. The invention also relates to a method for detecting an analyte. | 08-21-2008 |