Calcium Green Dye
Calcium Green Dye - Related Videos
08:14
Assessing T-cell Receptor-Induced Calcium Influx Using a Calcium Indicator Dye
0 Views •
2025
This video analyzes T-cell receptor-induced calcium influx in T-cells. Anti-CD3 antibodies activate the T-cell signaling pathways, leading to an increase in intracellular calcium ions that bind with Indo-1 dye. In flow cytometry, a spectrum shift from the calcium-free state to the calcium-bound state correlates with T-cell receptor-induced calcium influx.
17:05
Loading a Calcium Dye into Frog Nerve Endings Through the Nerve Stump: Calcium Transient Registration in the Frog Neuromuscular Junction
0 Views •
Cited by 13 •
2017
Here, we describe a method for loading a calcium-sensitive dye through the frog nerve stump into the nerve endings. We also present a protocol for the recording and analysis of fast calcium transients in the peripheral nerve endings.
09:32
Direct Imaging of ER Calcium with Targeted-Esterase Induced Dye Loading (TED)
0 Views •
Cited by 60 •
2013
Targeted-esterase induced dye loading (TED) supports the analysis of intracellular calcium store dynamics by fluorescence imaging. The method bases on targeting of a recombinant Carboxylesterase to the endoplasmic reticulum (ER), where it improves the local unmasking of synthetic low-affinity Ca2+ indicator dyes in the ER lumen.
04:46
Calcium Influx Assay to Measure Mitochondrial Calcium Uptake in Cultured Cells
0 Views •
2025
This video describes a confocal microscopy imaging-based assay to measure mitochondrial calcium uptake in cultured cells. The assay uses the calcium-sensitive fluorescent dye Rhod-2/AM to measure the mitochondrial calcium in permeabilized cultured cells.
03:13
Mitochondrial Calcium Uptake Assay: A Plate Reader-Based Method for Measuring Calcium Uptake in Isolated Mitochondria
0 Views •
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.
FAQs
Calcium-binding groups within the dye interact with Ca2+, producing a fluorescence change when calcium binds. Imaging instruments detect this altered signal, allowing researchers to follow changes in intracellular calcium over time. The relationship between fluorescence and calcium must be interpreted under appropriate imaging conditions because the signal reflects dye behavior as well as calcium dynamics.
A change in fluorescence indicates that intracellular calcium has changed in a way detectable by the indicator. These shifts can show when a cell responds to a stimulus or undergoes calcium-dependent activity. The measurement is especially useful for tracking dynamic signaling events rather than treating fluorescence as a direct observation of every calcium process inside the cell.
Intracellular calcium acts as a signal that links cellular stimulation with functional responses. Changes in calcium can accompany secretion, contraction, transport, and communication between cells. Monitoring these changes with a fluorescent indicator helps connect a visible signal pattern to biological activity, including how cells respond and coordinate their behavior.
Researchers combine the dye with fluorescence microscopy to observe calcium-related changes in cells. The microscope records fluorescence signals under suitable imaging conditions, and those signals can then be examined for changes associated with cellular activity. This approach makes it possible to visualize calcium dynamics in individual cells or biological systems studied through related assays.
Calcium Green measurements can support studies of cell signaling, neuronal activity, muscle function, and calcium transport. They are also relevant when researchers examine secretion, contraction, or cellular communication. In each case, the fluorescence readout provides a way to relate calcium changes to the response or coordination process being investigated.
In neuronal studies, calcium-dependent fluorescence can help reveal activity associated with cellular communication. In muscle research, the same type of measurement can be used to examine calcium changes linked with contraction. These applications place intracellular calcium dynamics within distinct biological contexts, helping researchers compare how different cells use calcium as a signal.