Chemists find new way make synthetic mother pearl
X
Waste Management Expo 2020 MAR 12&13 BIEC, Bengaluru, India

Chemists find new way to make synthetic mother of pearl

10:08 AM, 22nd August 2016
Chemists find new way to make synthetic mother of pearl
Helmut Colfen, professor of physical chemistry at the University of Konstanz.

KONSTANZ, GERMANY: Biomaterials play a crucial role in the development of future high-performance materials. A naturally occurring example of such biomaterial, the mollusk shell, guides chemical replication processes in laboratories. Due to its complex chemical construction, however, these processes are not easy to replicate synthetically.

Chemists at the University of Konstanz, in cooperation with the University of Science and Technology of China (Hefei, China), are now the first to synthetically reproduce the structural configuration of natural mother of pearl or “nacre”. To develop the multiscale structures in nacre, the chemists rely on calcium carbonate, chitin and silk fibroin gel as original components. Their production process creates the same structural composition and the nearly identical characteristics of the naturally occurring biomineral.

The research results were published by Helmut Colfen, professor of physical chemistry at the University of Konstanz and his colleagues in the online edition of the journal Science.

The key to developing nacre, which is 3,000 times more fracture resistant than the calcium carbonate it primarily consists of (95 percent), lies in the replication of the hierarchically arranged structure comprised of its particle-level components.

Previous efforts to produce synthetic nacre involved attempts at replicating its layered structure. Unfortunately, the natural mineralization process, which many mollusks such as oysters or snails use for the production of nacre, could not be imitated.

The researchers around Helmut Colfen developed a new procedure where the natural components of nacre were used in consecutive layering and mineralization processes. They were able to simultaneously control the mineral structure in the nano- and micrometer range during a so-called ‘mesoscopic approach’. In this way, the chemists were able to create a biomineral that is almost identical to the naturally occurring nacre. The material is hard, fracture-resistant and is based on – in contrast to the results of previous production attempts – the insoluble structure of chitin, just like in the natural nacre (mother of pearl).

“The advantage of this approach is that we can substitute higher-grade components for the brittle calcium carbonate base material during the production process. This means that including mechanically superior materials instead of calcium carbonate in our manufacturing process will allow us to produce high-performance materials in the future – all based on the design of the mollusk shell and our bioinspired research”, explained Helmut Colfen.

His synthetic production process has one significant advantage over nature: It is faster. The developmental process of naturally occurring nacre takes months, if not years. Helmut Colfen’s process takes two weeks.

© University of Konstanz News

0 Comments

Login

Your Comments (Up to 2000 characters)
Please respect our community and the integrity of its participants. WOC reserves the right to moderate and approve your comment.

Related News


BASF opens first construction chemicals plant in Sri Lanka

COLOMBO, SRI LANKA: BASF SE has opened its first production plant in Sri Lanka which will produce standard and custom-made performance-based cons ...

Read more
ChemChina, Syngenta’s $43 billion deal gets US clearance

BEIJING, CHINA/ BASEL, SWITZERLAND: China National Chemical Corporation (ChemChina) said that it has received a clearance from the Committee on Foreig ...

Read more
Study finds 'missing evolutionary link' of widely used natural drug source

JUPITER, US: A well-known family of natural compounds, called “terpenoids,” have a curious evolutionary origin. In particular, one questio ...

Read more
A Schulman appoints current VP as its new chief legal officer

AKRON, US: A Schulman Inc has appointed Andrean Horton currently VP, secretary and assistant general counsel, responsible for global legal operations ...

Read more
Air Products inaugurates new gas transfill facility in South Korea

LEHIGH VALLEY, US: Air Products and Chemicals Inc has inaugurated its new state-of-the-art non-electronics speciality gases and helium transfill facil ...

Read more
Albemarle strengthens its hydroprocessing business strategy

CHARLOTTE, US: Albemarle Corporation is strengthening its business strategy in hydrotreating to become even more focused on technology developmen ...

Read more
www.worldofchemicals.com uses cookies to ensure that we give you the best experience on our website. By using this site, you agree to our Privacy Policy and our Terms of Use. X