Featured Research

from universities, journals, and other organizations

Scientists create artificial mother of pearl

Date:
July 24, 2012
Source:
University of Cambridge
Summary:
Mimicking the way mother of pearl is created in nature, scientists have for the first time synthesized the strong, iridescent coating found on the inside of some mollusks.

Abalone shells. Mimicking the way mother of pearl is created in nature, scientists have for the first time synthesized the strong, iridescent coating found on the inside of some molluscs.
Credit: kaowenhua / Fotolia

Mimicking the way mother of pearl is created in nature, scientists have for the first time synthesized the strong, iridescent coating found on the inside of some molluscs.

The research was published July 24 in the journal Nature Communications.

Nacre, also called mother of pearl, is the iridescent coating that is found on the inside of some molluscs and on the outer coating of pearls. By recreating the biological steps that form nacre in molluscs, the scientists were able to manufacture a material which has a similar structure, mechanical behavior, and optical appearance of that found in nature.

In order to create the artificial nacre, the scientists followed three steps. First, they had to take preventative measure to ensure the calcium carbonate, which is the primary component of nacre, does not crystallize when precipitating from the solution. This is done by using a mixture of ions and organic components in the solution that mimics how molluscs control this. The precipitate can then be adsorbed to surfaces, forming layers of well-defined thickness.

Next, the precipitate layer is covered by an organic layer that has 10-nm wide pores, which is done in a synthetic procedure invented by co-author Alex Finnemore. Finally, crystallization is induced, and all steps are repeated to create a stack of alternating crystalline and organic layers.

Professor Ulli Steiner, of the Department of Physics' Cavendish Laboratory at the University of Cambridge, said: "Crystals have a characteristic shape that reflects their atomic structure, and it is very difficult to modify this shape. Nature is, however, able to do this, and through our research we were able to gain insight into how it grows these materials. Essentially, we have created a new recipe for mother of pearl using nature's cookbook."

Alex Finnemore, also of the Department of Physics' Cavendish Laboratory, said: "While many composite engineering materials outperform nacre, its synthesis entirely at ambient temperatures in an aqueous environment, as well as its cheap ingredients, may make it interesting for coating applications. Once optimized, the process is simple and can easily be automated."


Story Source:

The above story is based on materials provided by University of Cambridge. The original story is licensed under a Creative Commons license. Note: Materials may be edited for content and length.


Journal Reference:

  1. Alexander Finnemore, Pedro Cunha, Tamaryn Shean, Silvia Vignolini, Stefan Guldin, Michelle Oyen, Ullrich Steiner. Biomimetic layer-by-layer assembly of artificial nacre. Nature Communications, 2012; 3: 966 DOI: 10.1038/ncomms1970

Cite This Page:

University of Cambridge. "Scientists create artificial mother of pearl." ScienceDaily. ScienceDaily, 24 July 2012. <www.sciencedaily.com/releases/2012/07/120724115013.htm>.
University of Cambridge. (2012, July 24). Scientists create artificial mother of pearl. ScienceDaily. Retrieved August 23, 2014 from www.sciencedaily.com/releases/2012/07/120724115013.htm
University of Cambridge. "Scientists create artificial mother of pearl." ScienceDaily. www.sciencedaily.com/releases/2012/07/120724115013.htm (accessed August 23, 2014).

Share This




More Matter & Energy News

Saturday, August 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Is It a Plane? No, It's a Hoverbike

Is It a Plane? No, It's a Hoverbike

Reuters - Business Video Online (Aug. 22, 2014) UK-based Malloy Aeronautics is preparing to test a manned quadcopter capable of out-manouvering a helicopter and presenting a new paradigm for aerial vehicles. A 1/3-sized scale model is already gaining popularity with drone enthusiasts around the world, with the full-sized manned model expected to take flight in the near future. Matthew Stock reports. Video provided by Reuters
Powered by NewsLook.com
Coal Gas Boom in China Holds Climate Risks

Coal Gas Boom in China Holds Climate Risks

AP (Aug. 22, 2014) China's energy revolution could do more harm than good for the environment, despite the country's commitment to reducing pollution and curbing its carbon emissions. (Aug. 22) Video provided by AP
Powered by NewsLook.com
Former TSA X-Ray Scanners Easily Tricked To Miss Weapons

Former TSA X-Ray Scanners Easily Tricked To Miss Weapons

Newsy (Aug. 21, 2014) Researchers found the scanners could be duped simply by placing a weapon off to the side of the body or encasing it under a plastic shield. Video provided by Newsy
Powered by NewsLook.com
Flower Power! Dandelions Make Car Tires?

Flower Power! Dandelions Make Car Tires?

Reuters - Business Video Online (Aug. 20, 2014) Forget rolling on rubber, could car drivers soon be traveling on tires made from dandelions? Teams of scientists are racing to breed a type of the yellow flower whose taproot has a milky fluid with tire-grade rubber particles in it. As Joanna Partridge reports, global tire makers are investing millions in research into a new tire source. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins