Silica Skeletons
Silica Skeletons - Related Videos
08:02
Dissection and Flat-mounting of the Threespine Stickleback Branchial Skeleton
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Cited by 18 •
2016
The branchial skeleton, including gill rakers, pharyngeal teeth, and branchial bones, serves as the primary site of food processing in most fish. Here we describe a protocol to dissect and flat-mount this internal skeleton in threespine sticklebacks. This method is also applicable to a variety of other fish species.
01:28
Carbon Skeletons
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2026
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side chains...
09:11
Porosimetry of a Silica Alumina Powder
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA Surface area and pore size distribution are attributes used by adsorbent and catalyst manufacturers and users to ensure quality control and to determine when products are at the end of their useful lives. The surface area of a porous solid is directly related to its adsorption capacity or catalytic activity. The pore size distribution of an adsorbent or catalyst is...
01:21
Skeleton and Calcium Homeostasis
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2023
Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
01:09
Overview of the Axial Skeleton
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2025
The skeleton is subdivided into two major divisions—the axial skeleton and the appendicular skeleton. The axial skeleton forms the vertical, central axis of the body. It includes all of the bones of the head, neck, chest, and back. It protects the brain, spinal cord, heart, and lungs. It also serves as the attachment site for muscles that move the head, neck, and back and for muscles that act across the shoulder and hip joints to move their corresponding limbs. The axial skeleton of the adult...
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The process begins when dissolved silicic acid is taken up from the environment and concentrated within specialized cells. Local concentration enables the material to polymerize into silica, while associated organic templates help organize deposition. This cellular control allows organisms to form mineral structures under mild biological conditions rather than relying on the extreme conditions often associated with industrial mineral processing.
Organic templates provide a biological framework around which hydrated, amorphous silica can polymerize. Their involvement helps explain how organisms generate organized mineral architectures with controlled form and low structural weight. This interaction between organic molecules and inorganic material is especially important for understanding how biological systems produce complex designs that may be difficult to create through conventional fabrication.
Differences in architecture can reflect the identity of the organism that produced a structure. Because diatoms and some sponges form characteristic mineral designs, researchers can use preserved structural features to distinguish microorganisms or related biological sources. The same variation also links form with ecological history, making architecture useful beyond its immediate roles in support and protection.
Researchers can examine the species-specific architecture preserved in these mineral structures as a biological identification feature. Distinctive designs produced by organisms such as diatoms provide evidence about which microorganisms were present in a sample. This application makes silica skeletons valuable in ecological research, particularly when the original living organisms are no longer available for direct observation.
Preserved remains retain structural evidence from organisms that lived in earlier environments. By studying which silica-producing forms are present and recognizing their characteristic architectures, researchers can use the remains to investigate ecological conditions through time. This approach connects biological mineral structures with environmental reconstruction, allowing past settings to be studied through materials that persist after organisms disappear.
These structures show how living organisms create complex, lightweight mineral designs through controlled biological processes and mild conditions. Materials scientists can study that combination of organization, mineral formation, and low structural mass as a source of design principles. The biological examples therefore provide context for developing materials inspired by natural strategies rather than simply copying the final mineral shape.