Search results for nacre

Biotechnology Jan 6, 2026

Dentin inside wolffish teeth is a rare material: When compressed along its length—it also shrinks in width

The Atlantic wolffish is known for its powerful bite, capable of crushing hard-shelled prey with ease. Now, researchers have discovered that the fish's teeth don't just withstand these extreme forces, they respond in a way ...

Molecular & Computational biology Oct 30, 2025

How ammolite gemstones get their vivid colors

The origins of vivid colors within the gemstone ammolite—a rare type of brightly colored fossilized ammonite shell—are reported in research published in Scientific Reports.

Materials Science Oct 14, 2025

Nacre-inspired composites combine strength, color control and wave transparency

Modern industry requires multi-dimensional performance design of protective structural materials. In nature, many organisms maintain the mechanical strength required for defense and achieve camouflage effects at the same ...

Evolution Jun 10, 2025

Ancient fossils show how the last mass extinction forever scrambled the ocean's biodiversity

About 66 million years ago—perhaps on a downright unlucky day in May—an asteroid smashed into our planet.

Materials Science May 16, 2025

Synthetic materials mimic seashells to enhance energy absorption

Millions of years of evolution have enabled some marine animals to grow complex protective shells composed of multiple layers that work together to dissipate physical stress. In a new study, engineers have found a way to ...

Analytical Chemistry Apr 7, 2025

Nacre-like ceramic-metal composite achieves superior strength and mass-production potential

Mollusks possess sturdy protective shells, thanks to their internal nacre structure. Nacre, the natural nanocomposite, demonstrates outstanding mechanical properties through both high strength and high toughness. Nacre, therefore, ...

Bio & Medicine Mar 26, 2024

A nanoscale look at how shells and coral form reveals that biomineralization is more complex than imagined

Exactly how does coral make its skeleton, a sea urchin grow a spine, or an abalone form the mother-of-pearl in its shell? A new study at the Advanced Light Source at the Department of Energy's Lawrence Berkeley National Laboratory ...

Materials Science Mar 2, 2024

Bio-inspired materials showcase potential for protective equipment and textiles

Bio-inspired materials (BIM) are synthetic materials whose structure and properties are similar to natural materials or living matter. These materials have the potential to advance structural materials, textiles and protective ...

Polymers Feb 8, 2024

New process allows full recovery of starting materials from tough polymer composites

In a win for chemistry, inventors at the Department of Energy's Oak Ridge National Laboratory have designed a closed-loop path for synthesizing an exceptionally tough carbon-fiber-reinforced polymer, or CFRP, and later recovering ...

Biochemistry Jan 12, 2024

New research deciphers biomineralization mechanism

Many organisms can produce minerals or mineralized tissue. A well-known example is nacre, which is used in jewelry because of its iridescent colors. Chemically speaking, its formation begins with a mollusk extracting calcium ...

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