Kinetic Microplate Reader
Kinetic Microplate Reader - Related Videos
07:51
Introduction to the Microplate Reader
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2023
The microplate reader is a multimodal instrument that allows for a variety of experiments to be performed and measured simultaneously. Microplate readers can make absorbance, fluorescence and luminescence measurements. Multiwell plates are integral to the microplate reader and allow for many experiments to be performed at once. Regardless of the assay type, experiments on the plate reader utilize a standard curve to determine the experimental values. This curve uses samples of known...
03:01
Precise and High-Throughput Analysis of Bacterial Growth Using a Microplate Reader
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2025
Source: Kurokawa, M., et al. Precise, High-throughput Analysis of Bacterial Growth. J. Vis. Exp. (2017)This video demonstrates the high-throughput quantification of bacterial growth using a microplate reader. It outlines the steps involved in culture preparation, optical density measurement, and analysis of growth dynamics.
02:59
Fluorescence Microplate-Based Cycloheximide Chase Assay: A Technique to Monitor the Degradation Kinetics of Fluorescent Nuclear Misfolded Proteins
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2025
This video describes an in vitro fluorescence-based microplate assay to study the degradation kinetics of a fluorescently-labeled misfolded luciferase mutant protein expressed in the nuclei of transfected mammalian cells. The assay involves the treatment of cells expressing the fluorescent mutant protein with a translation inhibitor and a proteasome inhibitor to assess the proteasome-mediated degradation of the misfolded protein.
13:08
Measurement of Factor V Activity in Human Plasma Using a Microplate Coagulation Assay
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Cited by 10 •
2012
This study describes a novel microplate assay that measures FV coagulation activity during fibrin clot formation in human plasma which has not been reported previously. The method uses a kinetic microplate reader to continuously measure the change in absorbance at 405nm during fibrin clot formation in human plasma.
03:07
Kinetic Molecular Theory: Molecular Velocities, Temperature, and Kinetic Energy
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2020
The kinetic molecular theory qualitatively explains the behaviors described by the various gas laws. The postulates of this theory may be applied in a more quantitative fashion to derive these individual laws. Collectively, the molecules in a sample of gas have average kinetic energy and average speed; but individually, they move at different speeds. Molecules frequently undergo elastic collisions in which the momentum is conserved. Since the colliding molecules are deflected off at different...
FAQs
Signal selection determines what the time course can reveal. Absorbance, fluorescence, and luminescence provide different optical readouts, so the assay must be paired with the signal it generates. Repeated measurements then show how that signal changes rather than supplying only one final value. This makes it possible to examine reaction rates, growth patterns, or treatment effects as dynamic outcomes.
Temperature, mixing, and measurement intervals are not merely instrument settings; they shape the conditions under which a reaction or cellular process is observed. Maintaining the selected temperature and mixing pattern supports consistent monitoring, while the interval determines how finely the process is resolved in time. Together, these controls influence whether rapid changes or broader trends become visible in the resulting data.
Compared with a single endpoint reading, kinetic measurement adds temporal information. An endpoint can indicate the state of a well at one selected moment, whereas repeated readings can distinguish a reaction rate from its later result or reveal changing microbial growth patterns. That distinction is valuable when two conditions produce similar final signals but follow different time courses.
To design a run, researchers select the assay, identify its optical signal, and set the measurement schedule and controlled conditions. The reader then samples multiple wells repeatedly while the reaction, microbial growth, pathogen-associated activity, or immune-cell response proceeds. Organizing the measurements as a time course allows subsequent analysis to focus on rates, patterns, and treatment-related changes rather than isolated readings.
In immunology and infection studies, the instrument can follow enzyme-linked immunosorbent assay reactions, microbial growth, pathogen-associated activity, and immune-cell responses. These applications connect optical changes to distinct experimental questions, such as how quickly an assay reaction develops, how growth progresses, or how a treatment alters a host- or pathogen-related response. The shared advantage is quantitative observation over time.
Time-course output supports quantitative analysis of host-pathogen interactions and antimicrobial activity, while also helping investigators examine immune mechanisms. Researchers can use reaction rates to characterize assay behavior, growth patterns to describe microbial progression, and treatment effects to compare changing responses. Interpretation therefore depends on the trajectory across measurements, not only on the magnitude of a single optical signal.