Cobweb Holder
Cobweb Holder - Related Videos
07:55
An All-in-one Sample Holder for Macromolecular X-ray Crystallography with Minimal Background Scattering
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Cited by 4 •
2019
A novel sample holder for macromolecular X-ray crystallography along with a suitable handling protocol is presented. The system allows crystal growth, crystal soaking and in situ diffraction data collection at both, ambient and cryogenic temperature without the need of any crystal manipulation or mounting.
05:41
Live-Cell Imaging of Intact Ex Vivo Globes Using a Novel 3D Printed Holder
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Cited by 2 •
2022
The present work describes a novel experimental protocol that utilizes a 3D printed holder to enable high-resolution live cell imaging of enucleated globes. Through this protocol, the cellular calcium signaling activity in wounded corneal epithelium from ex vivo globes can be observed in real time.
10:15
Light Sheet-based Fluorescence Microscopy of Living or Fixed and Stained Tribolium castaneum Embryos
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Cited by 18 •
2017
Imaging the morphogenesis of insect embryos with light sheet-based fluorescence microscopy has become state of the art. This protocol outlines and compares three mounting techniques appropriate for Tribolium castaneum embryos, introduces two novel custom-made transgenic lines well suited for live imaging, discusses essential quality controls and indicates current experimental limitations.
11:20
Retinal Pigment Epithelium Transplantation in a Non-human Primate Model for Degenerative Retinal Diseases
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Cited by 8 •
2021
The non-human primate (NHP) is an ideal model for studying human retinal cellular therapeutics due to the anatomical and genetic similarities. This manuscript describes a method for submacular transplantation of retinal pigment epithelial cells in the NHP eye and strategies to prevent intraoperative complications associated with macular manipulation.
03:19
A Technique to Inflict Closed-Head Traumatic Brain Injury in Drosophila Flies
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2025
This video demonstrates a procedure to inflict a closed-head traumatic injury in anesthetized Drosophila flies using a strike device with a gas-propelled impactor. The injury affects neuronal function and impairs walking ability.
FAQs
Its main mechanical contribution is to constrain movement without imposing enough force to alter the web. Because cobweb material has a delicate and irregular architecture, stable support helps preserve the arrangement being examined. This makes observations more comparable across handling steps and reduces losses caused by shifting or accidental damage.
Preventing stretching and tearing helps ensure that researchers examine the original arrangement rather than a structure changed by manipulation. Preserving the web in this way supports more reliable visual comparisons and measurements. It also reduces the need to repeat handling, which can further disturb the material or associated samples.
Fixed positioning keeps the material accessible while limiting movement during observation. That combination allows researchers to examine the same region more consistently and compare visible features with less positional variation. In developmental biology, improved positioning can make visual analysis of web-associated organisms, structures, or samples more orderly and reproducible.
A supported workflow places the cobweb material in the holder, secures it in a fixed position, and maintains access for observation, handling, imaging, or measurement. Researchers should aim to stabilize the irregular structure while minimizing stretching, tearing, and movement. The holder can then remain in place during the planned examination.
Developmental biologists may use a Cobweb Holder when web-associated organisms, structures, or samples need examination without repeated disturbance. The device is especially relevant when researchers must maintain a sample's position while making visual observations or comparisons. Its value lies in supporting careful handling and more consistent examination of delicate material.
Improved stability can produce more consistent visual analysis, clearer comparisons, and more reproducible laboratory observations. By reducing movement and structural damage during manipulation, the holder helps researchers focus on the material or associated sample rather than changes introduced by handling. These benefits support both observation and measurement in developmental biology studies.