Researchers at The University of Akron are again spinning inspiration from spider silk — this time to create more efficient and stronger commercial and biomedical adhesives that could, for example, potentially attach tendons to bones or bind fractures.
The Akron scientists created synthetic duplicates of the super-sticky, silk “attachment discs” that spiders use to attach their webs to surfaces. These discs are created when spiders pin down an underlying thread of silk with additional threads, like stiches or staples, explains Ali Dhinojwala, UA’s H.A. Morton professor of polymer science and lead researcher on the project.
This “staple-pin” geometry of the attachment disc creates a strong attachment force using little material, he adds.
Through electrospinning, a process by which an electrical charge is used to draw very fine fibers from a liquid (in this case, polyurethane), Dhinojwala and his team were able to mimic the efficient staple-pin design, pinning down an underlying nylon thread with the electrospun fibers.
“This adhesive architecture holds promise for potential applications in the area of adhesion science, particularly in the field of biomedicine where the cost of the materials is a significant constraint,” the authors write in their paper, “Synthetic Adhesive Attachment Discs Inspired by Spider’s Pyriform Silk Architecture,” published online March 1 in the Journal of Polymer Physics.
Dhinojwala adds that the design could potentially be used, in addition to medical applications, to create commercial adhesives stronger than conventional glue and tape.
“Instead of using big globs of glue, for example, we can use this unique and efficient design of threads pinning down a fiber,” he says. “The inspiration was right in front of us, in nature.”
“You can learn a lot of science from nature,” adds Dharamdeep Jain, a graduate student and co-author of the paper.
Indeed, researchers at UA have been learning quite a bit from nature’s silk-spinning artists.
Dhinojwala and Vasav Sahni, former graduate student and third co-author of the aforementioned paper, previously worked together to study the adhesive properties of spider silk; and last year Todd Blackledge, Leuchtag Endowed Chair and associate professor of biology and integrated bioscience at UA, revealed the possibilities of using silk to develop materials that are as strong as steel and yet flexible as rubber.
Story by Nicholas Nussen
Media contact: Denise Henry, 330-972-6477 or email@example.com.
Denise Henry | Eurek Alert!
Magnesium magnificent for plasmonic applications
23.05.2018 | Rice University
New concept for structural colors
18.05.2018 | Technische Universität Hamburg-Harburg
At the LASYS 2018, from June 5th to 7th, the Laser Zentrum Hannover e.V. (LZH) will be showcasing processes for the laser material processing of tomorrow in hall 4 at stand 4E75. With blown bomb shells the LZH will present first results of a research project on civil security.
At this year's LASYS, the LZH will exhibit light-based processes such as cutting, welding, ablation and structuring as well as additive manufacturing for...
There are videos on the internet that can make one marvel at technology. For example, a smartphone is casually bent around the arm or a thin-film display is rolled in all directions and with almost every diameter. From the user's point of view, this looks fantastic. From a professional point of view, however, the question arises: Is that already possible?
At Display Week 2018, scientists from the Fraunhofer Institute for Applied Polymer Research IAP will be demonstrating today’s technological possibilities and...
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
23.05.2018 | Life Sciences
23.05.2018 | Physics and Astronomy
23.05.2018 | Life Sciences