Caged Calcium Compound
Caged Calcium Compound - Related Videos
11:35
Flash Photolysis of Caged Compounds in the Cilia of Olfactory Sensory Neurons
0 Views •
Cited by 8 •
2011
Photolysis of caged compounds allows the production of rapid and localized increases in the concentration of various physiologically active compounds. Here, we show how to obtain patch-clamp recordings combined with photolysis of caged cAMP or caged Ca for the study of olfactory transduction in dissociated mouse olfactory sensory neurons.
09:44
Design, Synthesis, and Photochemical Properties of Clickable Caged Compounds
0 Views •
Cited by 1 •
2019
A protocol for the synthesis and measurement of the photochemical properties of modular caged compounds with clickable moieties is presented.
09:38
Compound Administration II
0 Views •
2016
Source: Kay Stewart, RVT, RLATG, CMAR; Valerie A. Schroeder, RVT, RLATG. University of Notre Dame, IN Compound administration is often an integral component of an animal study. Many factors need to be evaluated to ensure that the compound is delivered correctly. The route of administration affects the mechanisms of absorption. The characteristics of the substance to be introduced (the pH, viscosity, and concentration) may dictate which route of administration is selected.
08:03
Maintenance of a Drosophila melanogaster Population Cage
0 Views •
Cited by 8 •
2016
This manuscript reports a detailed protocol for culturing, on a regular basis, a population of Drosophila melanogaster using a fly population cage.
02:55
Solubility of Ionic Compounds
0 Views •
2020
Solubility is the measure of the maximum amount of solute that can be dissolved in a given quantity of solvent at a given temperature and pressure. Solubility is usually measured in molarity (M) or moles per liter (mol/L). A compound is termed soluble if it dissolves in water. When soluble salts dissolve in water, the ions in the solid separate and disperse uniformly throughout the solution; this process represents a physical change known as dissociation. Potassium chloride (KCl) is an example...
FAQs
The protecting group keeps the calcium-binding structure in a state with low affinity for Ca2+ before illumination. This limits calcium availability until the experimenter applies the triggering light. Photolysis then removes the cage, restoring the compound’s ability to release calcium. The chemical switch makes the timing of calcium elevation experimentally controllable rather than continuously present.
Illumination determines when and where the caged calcium compound undergoes photolysis. Changing the timing can produce brief calcium elevations at selected moments, while changing the illuminated region can localize release within a biological system. These controls allow researchers to examine whether a cellular response depends on the duration, position, or precise onset of calcium availability.
The light must have an appropriate wavelength to trigger photolysis of the light-sensitive group. If the triggering condition is not suitable, the cage will not be removed and calcium release will not occur as intended. Selecting the appropriate illumination therefore connects the optical stimulus to the chemical response and helps preserve experimental control over calcium-dependent events.
Researchers select the desired timing and location of calcium release, then illuminate the relevant region under conditions that trigger photolysis. The resulting change in calcium availability can be examined through its effect on a cellular process. This workflow links a defined optical event to outcomes such as signaling, neuronal activity, contraction, or secretion.
Controlled calcium uncaging can be applied to studies of intracellular signaling, neuronal activity, muscle contraction, and secretion. In each case, the method lets researchers relate a deliberately timed calcium change to a biological response. It is especially useful when the goal is to distinguish effects caused by brief or localized calcium signals from broader calcium-dependent activity.
Brief, localized calcium signals can reveal how the position and timing of calcium availability regulate cellular behavior. By adjusting illumination, researchers can test whether a response follows a short calcium pulse or arises only when calcium increases in a particular region. These observations help connect calcium-dependent mechanisms with physiological or pathological outcomes.