ResourceLife Sciences
Reducing Variability in Small Molecule Screening and Kinetics Applications
11 Sept 2017Minimising the variability of background signals is a key parameter to the sucess of demanding applications such as small molecule analysis. By reducing the background variability, smaller positive signals can successfully be resolved, providing an increase in assay sensitivity. This application note demonstrates the use of a reference biosensor with biotinylated streptavidin for increasing signalto-noise levels, thereby improving the detection of small molecules, including fragments.
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BiosensorsBiosensors are devices used to detect an analyte using biological molecules specific to the analyte coupled to a detector. Biosensor instruments may be photometric, typically using surface plasma resonance (SPR), electrochemical or QCM (quartz crystal microbalance) biosensors. Biosensors should be selective, portable, robust and sensitive and have a fast response time. Systems may be manual or automated and usually have associated software.ScreeningUsing robotics, data processing and control software, liquid handling devices and sensitive detectors, screening allows a researcher to quickly conduct millions of chemical, genetic or pharmacological tests.Biomarker DiscoveryClinical biomarkers refer to substances related to known medical conditions that can be accurately measured <i>in vitro</i>. Biomarkers can be used to diagnose presence of a disease and indicate disease severity. The discovery of new biomarkers is incredibly valuable in the field of diagnostics.