Eggshell Removal
Eggshell Removal - Related Videos
03:41
C. elegans Blastomere Dissection: A Method to Remove the Eggshell and Dissociate Embryonic Cells
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2023
This video introduces a method of isolating C. elegans blastomeres from early embryos. The resulting cells are suitable for cell culture or ex vivo experiments.
08:11
Ecotoxicological Effects of Microplastics on Bird Embryo Development by Hatching without Eggshell
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Cited by 6 •
2021
This paper introduces a method of hatching without using an eggshell for toxicological studies of particle pollutants such as microplastics.
09:15
Processing Embryo, Eggshell, and Fungal Culture for Scanning Electron Microscopy
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Cited by 8 •
2019
Here, we present detailed processing protocols for imaging delicate tissue samples using scanning electron microscopy (SEM). Three different processing methods, namely, hexamethyl disilazana (HMDS) chemical drying, simple air drying, and critical point drying are described for preparing rigid eggshells, embryos at early developmental stages, and fungal cultures respectively.
06:43
Rotary Evaporation to Remove Solvent
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2023
Source: Dr. Melanie Pribisko Yen and Grace Tang — California Institute of Technology Rotary evaporation is a technique most commonly used in organic chemistry to remove a solvent from a higher-boiling point compound of interest. The rotary evaporator, or "rotovap", was invented in 1950 by the chemist Lyman C. Craig. The primary use of a rotovap is to dry and purify samples for downstream applications. Its speed and ability to handle large volumes of solvent make rotary evaporation a preferred...
03:02
Nictitating Membrane Removal: A Surgical Procedure to Remove Nictitating Membrane from Rabbit Eye
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2025
In this video, we demonstrate a surgical procedure to remove nictitating membrane from rabbit’s eye.
FAQs
The shell provides more than physical protection: it also helps regulate the egg’s internal environment. Removing it can therefore expose the embryo to conditions that differ from those inside an intact egg, while careless handling may damage the embryo or its surrounding membranes. Careful removal preserves the structures needed for continued observation and development during an experiment.
Removal can reveal the membranes, egg contents, and developing embryo that are normally hidden by the shell. This access allows investigators to examine developmental anatomy and tissue formation directly rather than relying only on observations through an intact shell. The specific structure exposed depends on how much shell is opened or taken away and how the sample is handled.
Shell removal may influence development because the shell contributes to the egg’s protected internal environment. If the embryo or its membranes are disturbed, normal development can be compromised, making careful handling essential. In controlled biology experiments, researchers account for this vulnerability when observing development, collecting samples, or applying treatments to embryos and extraembryonic tissues.
A laboratory approach begins by opening or removing enough shell to reach the intended membrane, contents, or embryo while minimizing structural disturbance. The exposed material can then be observed, sampled, or manipulated under controlled conditions. The extent of removal should match the experimental goal, because broader exposure may increase access but also raises the risk of disrupting development.
Biologists use shell removal when direct access is needed for developmental observation, extraembryonic tissue collection, embryo manipulation, or experimental treatment. It is especially useful when researchers need to follow processes that remain hidden inside an intact egg. These applications connect visible embryonic changes with studies of developmental anatomy, tissue formation, and physiology.
The technique provides direct visual access to developmental processes and can support examination of anatomy, tissue formation, and physiological changes. It also enables researchers to collect samples or assess responses to experimental treatments. Because the embryo and associated tissues become accessible, observations can be linked more directly to particular stages or experimental conditions.