Abstract: The present application provides apparatus and methods for determining the density of a fluid sample. In particular, it provides a sensor device which can be loaded with a fluid sample such as blood, and which further comprises at least one oscillating beam member or resonator. Exposure of the blood sample to clotting agents allows a clotting reaction to commence. The device allows the density of the sample fluid to be monitored with reference to the oscillation of the vibrating beam member, thus allowing the monitoring of the clotting of the fluid sample.

Abstract: The present application provides apparatus (300, 400) and methods for determining the density of a fluid sample. In particular, it provides a sensor device which can be loaded with a fluid sample such as blood, and which further comprises at least one oscillating beam member or resonator (108, 109, 110). Exposure of the blood sample to clotting agents allows a clotting reaction to commence. The device allows the density of the sample fluid to be monitored with reference to the oscillation of the vibrating beam member, thus allowing the monitoring of the clotting of the fluid sample.

Abstract: The present invention provides a method for the real-time continuous monitoring of a change or density and/or viscosity within a test sample. Such methods can be used to determine the occurrence of a chemical reaction within a test sample where the same causes and increase or decrease in the density and/or viscosity of the sample due to, for example, a gelation, precipitation or coagulation occurring within the test sample. There is further provided a multi-resonator apparatus for use in measuring the density and/or viscosity of a test sample in which the multi-beam resonator is immersed.

Abstract: The present invention provides a method for the real-time continuous monitoring of a change or density and/or viscosity within a test sample. Such methods can be used to determine the occurrence of a chemical reaction within a test sample where the same causes and increase or decrease in the density and/or viscosity of the sample due to, for example, a gelation, precipitation or coagulation occurring within the test sample. There is further provided a multi-resonator apparatus for use in measuring the density and/or viscosity of a test sample in which the multi-beam resonator is immersed.

Abstract: The present application provides apparatus (300, 400) and methods for determining the density of a fluid sample. In particular, it provides a sensor device which can be loaded with a fluid sample such as blood, and which further comprises at least one oscillating beam member or resonator (108, 109, 110). Exposure of the blood sample to clotting agents allows a clotting reaction to commence. The device allows the density of the sample fluid to be monitored with reference to the oscillation of the vibrating beam member, thus allowing the monitoring of the clotting of the fluid sample.