Disclosed is a calibration curve setting method for setting a calibration curve, the calibration curve setting method including: creating a first calibration curve on the basis of a measurement value obtained by measuring a standard sample for which a concentration of a predetermined component is known; creating a second calibration curve by correcting the created first calibration curve; displaying a screen configured to support an operator for restoring the second calibration curve to the first calibration curve; receiving an instruction of restoring the second calibration curve to the first calibration curve; and displaying the first calibration curve upon receiving the instruction of restoring.

This invention concerns spectroscopy apparatus comprising a light source arranged to generate a light profile on a sample, a photodetector having at least one photodetector element for detecting characteristic light generated from interaction of the sample with light from the light source, a support for supporting the sample, the support movable relative to the light profile, and a processing unit. The processing unit is arranged to associate a spectral value recorded by the photodetector element at a particular time with a point on the sample predicted to have generated the characteristic light recorded by the photodetector element at the particular time based on. relative motion anticipated to have occurred between the support and the light profile.

Methods and systems for optimal capture of a multi-channel image in a LSPR spectrometry is described herein. The method comprises 1) finding a plurality of valid groupings of channels, 2) determining total capture times for each valid grouping of channels, 3) determining a measure of exposure sub-optimality, 4) estimating the expected error in peak wavelength for each valid grouping, 5) finding an optimal grouping of channels by identifying the grouping with the lowest estimate of expected error in peak wavelength and 6) capturing a subsequent multi-channel image using the optimal grouping.

The present invention relates to a method for evaluating coagulability of a blood specimen obtained from a subject to whom a substance having a coagulation factor VIII-substituting activity is administered. The present invention also relates to a reagent for blood coagulation analysis, a reagent kit for blood coagulation analysis, and an apparatus for blood coagulation analysis. Furthermore, the present invention relates to an apparatus and computer program for evaluating coagulability of a blood specimen.

A method includes receiving a sample. The method also includes applying a denaturing agent to a first portion of the sample, and detecting, in response to the application of the denaturing agent, a first measure from the first portion of the sample. The method also includes modifying the temperature of a second portion of the sample and detecting, in response to the modifying the temperature of the second portion of the sample, a second measure from the second portion of the sample. The method also includes computing thermodynamic information for the sample based on the indication of the first measure, and computing kinetic information for the sample based on the indication of the second measure. The method also includes computing, based on the thermodynamic information and the kinetic information, an indication of temporal stability of the protein component of the sample.

Provided herein are systems for the label-free detection of target molecules in samples. The systems include a sensor probe positioned in a sensing region and configured to bind to receptors for the target molecules. The systems also include electrodes configured to expose the sensor probe to an alternating electric field, and a light source optically coupled to the sensor probe and configured to provide light along a length of the sensor probe. In addition, the systems also include a position sensitive photodetector configured to detect a position of light exiting the sensor probe, and a processor configured to assess, based at least in part on the position of the light exiting the sensor probe, an amplitude of oscillation of the sensor at a frequency of the alternating electric field and a direction of a displacement of the sensor. Additional systems and related methods are also provided.

Disclosed is a method for preparing dispersion gradients and an SPR injection method for determining full kinetics and affinity analysis in the presence of a competitor molecule. The SPR injection provides a dispersion gradient of two or more samples to a SPR flow cell and detector.

The automatic analysis device is provided with (1) a measurement mechanism having a light measuring unit having a reaction container in which the sample is dispensed, a light source which emits light to the reaction container, and a detection unit that detects scattered light from the sample in the reaction container, (2) an amplifier circuit unit having an adder-subtractor that adds or subtracts a correction signal to or from a first measurement signal from the detection unit, and an amplifier circuit which amplifies the output signal by the adder-subtractor at a fixed amplification rate to output a second measurement signal, and (3) an arithmetic operation unit which calculates the correction signal on the basis of a difference between the signal level of the second measurement signal and a target value, and which executes an analysis action based on the second measurement signal after correction by means of the correction signal.

A label-free optical biosensing system and method provide high sensitivity and specificity for in situ detection and activity estimation of serotypes, such as Botulinum Neurotoxins (BoNT). Pre-fabricated thin-film support structures are treated with a competitive immunoassay coupled to a biochemical cascade reaction, which provides optical signal amplification. When the thin-film support structures receive a target analyte and are exposed to polychromatic light, reaction products cause a change in average refractive index which appears in reflectivity spectra measured by an optical interferometer. Optical signal amplification enables a linear response for serotype concentrations of only a few picograms per millilitre, as well as a level-of-detection threshold of 5.0 picograms per millilitre or less. The specificity and selectivity of the method have been verified in studies using various combinations of different serotypes as a target analyte. Similarly, the serotype activity is estimated by an adjunct sensing platform.

A method of measuring rinse properties of a composition from a surface, the method includes providing a cosmetic treatment composition. The method also includes applying the cosmetic treatment composition to a surface. The method also includes rinsing the surface with a first amount of water after applying the cosmetic treatment composition to the surface. The method also includes collecting a portion of the first amount of water after rinsing the surface with the first amount of water. The method also includes measuring a first turbidity of the portion of the first amount of water after collecting the portion of the first amount of water.