Portable Plate Reader
Portable Plate 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...
03:13
Mitochondrial Calcium Uptake Assay: A Plate Reader-Based Method for Measuring Calcium Uptake in Isolated Mitochondria
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2025
This video describes a plate reader-based assay to measure mitochondrial calcium uptake in isolated mitochondria. The assay analyzes the fluorescence signal of a calcium-sensitive fluorescent dye to study the kinetics of mitochondrial calcium uptake and calcium overload.
07:13
Characterizing Modulators of Protease-Activated Receptors with a Calcium Mobilization Assay Using a Plate Reader
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Cited by 1 •
2024
An improved protocol for a calcium mobilization assay with endothelial cells, used to identify ligands of protease-activated receptors (PARs), has been developed. The new protocol reduces total assay time by 90-120 min and yields reproducible concentration-response curves.
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.
10:11
Portable Intermodal Preferential Looking (IPL): Investigating Language Comprehension in Typically Developing Toddlers and Young Children with Autism
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Cited by 32 •
2012
A reliable home-based way to assess the language comprehension of very young typically developing children, as well as those with autism, is described. The method analyzes children's eye gaze while viewing side-by-side images but hearing an audio that matches only one image. Stimuli are designed with young participants in mind.
FAQs
It directs illumination into wells containing samples and detects the resulting optical response. Depending on assay chemistry or biological activity, signals may appear as absorbance, fluorescence, or luminescence. Electronics then translate the measured response into quantitative data, allowing comparisons among wells within the same microplate.
Miniaturized optics reduce the instrument’s physical demands while preserving the components needed to illuminate wells and detect signals. Compact electronics process those measurements, and battery-powered operation reduces dependence on fixed laboratory infrastructure. Together, these features support testing in field settings, point-of-use environments, and facilities with limited equipment.
Calibration, sample handling, and environmental conditions can all influence assay performance. Calibration helps relate detected optical signals to meaningful measurements, while consistent handling supports comparability among wells. Conditions outside conventional laboratory settings may introduce additional variability, so results require attention to how samples and the instrument are used.
These readout modes capture different optical signals generated by reactions, cells, or labeled biomolecules. Absorbance can support colorimetric reactions, while fluorescence and luminescence provide alternatives when the assay produces those signals. Selecting the compatible mode allows one instrument platform to support diverse measurements, including enzyme, microbial, nucleic-acid, and diagnostic assays.
A typical workflow places assay samples into multiple microplate wells, exposes them to the reader’s illumination, and records the resulting optical signals. The instrument converts those signals into quantitative measurements for comparison across wells. Calibration and careful sample handling remain important throughout the workflow because both affect the quality of the final data.
Bioengineering uses include monitoring enzyme activity, microbial growth, nucleic-acid assays, and colorimetric diagnostic reactions. In each case, changes produced by the assay can be measured across multiple wells rather than evaluated only qualitatively. This supports screening and monitoring when researchers need quantitative information without relying on a conventional laboratory setup.
The approach is particularly relevant for decentralized research, rapid screening, field testing, and resource-limited applications. Its compact format and battery-powered operation can reduce equipment and workflow demands, making measurements more feasible near the point of use. However, portability does not remove the need to manage calibration, sample handling, and environmental effects.