Nanotechnology Now

Our NanoNews Digest Sponsors

Heifer International

Wikipedia Affiliate Button

Home > Press > Biomimetic micro/nanoscale fiber reinforced composites

Micro/nanostructure of fish scale and biomimetic fabrication and characterization. (a) arapaima giga; (b-d) micro/nanostructure of fish scale, three colored dotted lines represent three periodically arranged fiber layers; (e-f) biomimetic bottom-up assembly strategy; (g) biomimetic twisted plywood structural material and microstructure.

CREDIT
©Science China Press
Micro/nanostructure of fish scale and biomimetic fabrication and characterization. (a) arapaima giga; (b-d) micro/nanostructure of fish scale, three colored dotted lines represent three periodically arranged fiber layers; (e-f) biomimetic bottom-up assembly strategy; (g) biomimetic twisted plywood structural material and microstructure. CREDIT ©Science China Press

Abstract:
Over hundreds of millions of years of evolution, the magical nature has given birth to a myriad of biological materials which serve either as the skeletons of the organisms or as defensive or offensive weapons. Although these natural structural materials are derived from relatively sterile natural components, such as fragile minerals and ductile biopolymers, they often exhibit extraordinary mechanical properties due to their highly ordered hierarchical structures and sophisticated interfacial design. Therefore, they are always the main object for researchers to investigate and imitate aiming to create advanced artificial structural materials.

Biomimetic micro/nanoscale fiber reinforced composites

Beijing, China | Posted on August 10th, 2018

Through microstructural observation, we can find that many biological materials, including fish scale, crab claw and bone, all have typical twisted plywood structure that consists of highly ordered arrangement of micro/nanoscale fiber lamellas. They are structurally sophisticated natural fiber reinforced composites and often exhibit excellent damage tolerance that is urgently needed but difficult to be obtained for engineering structural materials. Therefore, fully mimicking this kind of natural hierarchical structure and interfacial design, by using artificial synthetic and abundant one-dimensional micro/nanoscale fibers as building blocks, is expected to produce high-performance new-style artificial structural materials that are expected to exceed existing engineering structural materials. However, due to the lack of micro/nanoscale assembly technology, especially the lack of means to efficiently integrate one-dimensional micro/nanoscale structural units into macroscopic bulk form, mimicking natural fiber reinforced composites has always been a major challenge, and there has rarely been reported so far.

In response to this challenge, recently, inspired by the micro/nanoscale twisted plywood structure of the natural Arapaima giga scale armour (a-d), for the first time, the biomimetic research team led by Professor Shu-Hong Yu from the University of Science and Technology of China (USTC) proposed a high-efficient bottom-up 'brushing-and-laminating' assembly strategy (e-f) with the biocompatible micro/nanofibers as structural units, successfully fabricated three-dimensional bulk biomimetic twisted plywood structural materials (g). Through hierarchically controlling the fiber alignment in the biopolymer matrix, the mechanical properties of resultant materials can be precisely modulated. It was found that the obtained artificial materials highly replicate the multiscale structure and toughening mechanisms of their natural counterparts, realizing excellent mechanical properties far beyond fundamental structural components and can be comparable with those of natural bone and many other natural and artificial materials. More importantly, the proposed assembly strategy is eco-friendly, programmed and scalable, and can be easily extended to other materials systems. Therefore, it provides a new technological space for designing more advanced biomimetic fiber reinforced structural materials (especially armour protection materials).

####

About Science China Press
The National Science Review is the first comprehensive scholarly journal released in English in China that is aimed at linking the country's rapidly advancing community of scientists with the global frontiers of science and technology. The journal also aims to shine a worldwide spotlight on scientific research advances across China.

For more information, please click here

Contacts:
Shu-Hong Yu

Copyright © Science China Press

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

See the article:

Related News Press

News and information

Shape-shifting sensors could catch early signs of cancer October 19th, 2018

Study provides insight into how nanoparticles interact with biological systems: Findings can help scientists engineer nanoparticles that are ‘benign by design’ October 18th, 2018

Iran Produces Cooling Fabrics Using Nanotechnology October 17th, 2018

Iran World’s Second Largest Producer of Nano-Catalysts October 17th, 2018

Law enforcement/Anti-Counterfeiting/Security/Loss prevention

Northwestern researchers achieve unprecedented control of polymer grids: Materials could find applications in water purification, solar energy storage, body armor June 22nd, 2018

The dispute about the origins of terahertz photoresponse in graphene results in a draw April 26th, 2018

Graphene origami as a mechanically tunable plasmonic structure for infrared detection April 25th, 2018

Nuclear radiation detecting device could lead to new homeland security tool: New device can detect gamma rays and identify radioactive isotopes April 25th, 2018

Possible Futures

Shape-shifting sensors could catch early signs of cancer October 19th, 2018

Study provides insight into how nanoparticles interact with biological systems: Findings can help scientists engineer nanoparticles that are ‘benign by design’ October 18th, 2018

Iran Unveils Its First Homegrown 3D Nano Printer October 17th, 2018

Rice U. announces $82 million in strategic research initiatives: Faculty, programs will expand in neuroengineering, synthetic biology, physical biology October 16th, 2018

Discoveries

Shape-shifting sensors could catch early signs of cancer October 19th, 2018

Study provides insight into how nanoparticles interact with biological systems: Findings can help scientists engineer nanoparticles that are ‘benign by design’ October 18th, 2018

Researchers quickly harvest 2-D materials, bringing them closer to commercialization: Efficient method for making single-atom-thick, wafer-scale materials opens up opportunities in flexible electronics October 12th, 2018

Graphene shows unique potential to exceed bandwidth demands of future telecommunications October 12th, 2018

Materials/Metamaterials

Aculon, Inc. Enters into Strategic Partnership Agreement with Henkel Corporation to Supply Key Mobile Device Manufacturers with NanoProof® PCB Waterproof Technology October 17th, 2018

Big award enables study of small surfaces: Rice U.'s Matt Jones wins Packard Fellowship to view nanoscale chemical reactions October 15th, 2018

Graphene controls surface magnetism at room temperature October 8th, 2018

Unmasking corrosion to design better protective thin films for metals: Researchers from three universities team up to analyze oxide films at atomic level October 3rd, 2018

Announcements

Shape-shifting sensors could catch early signs of cancer October 19th, 2018

Study provides insight into how nanoparticles interact with biological systems: Findings can help scientists engineer nanoparticles that are ‘benign by design’ October 18th, 2018

Iran Unveils Its First Homegrown 3D Nano Printer October 17th, 2018

Fat-Repellent Nanolayers Can Make Oven Cleaning Easier October 17th, 2018

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

Study provides insight into how nanoparticles interact with biological systems: Findings can help scientists engineer nanoparticles that are ‘benign by design’ October 18th, 2018

Big award enables study of small surfaces: Rice U.'s Matt Jones wins Packard Fellowship to view nanoscale chemical reactions October 15th, 2018

Graphene shows unique potential to exceed bandwidth demands of future telecommunications October 12th, 2018

High-performance self-assembled catalyst for SOFC October 12th, 2018

Military

Columbia Engineers Build Smallest Integrated Kerr Frequency Comb Generator October 9th, 2018

Light makes Rice U. catalyst more effective: Halas lab details plasmonic effect that allows catalyst to work at lower energy October 5th, 2018

Unmasking corrosion to design better protective thin films for metals: Researchers from three universities team up to analyze oxide films at atomic level October 3rd, 2018

Ultracold atoms used to verify 1963 prediction about 1D electrons: Rice University, University of Geneva study focuses on theory that's increasingly relevant to chipmakers September 5th, 2018

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project