A new material developed by scientists in the UK that heals itself at body temperature could modernise wound dressings and regenerative medicines such as artificial skin.
Self-healing polymers have a wide range of uses, from paints to impact resistant coatings for mobile devices. Now researchers from the universities of Reading and Oxford have developed an adhesive and elastic polymer that repairs itself at body temperature, which could find use in biomedicine.
‘If we cut ourselves we have to apply a plaster and after a period of time, that plaster starts to fail, its stickiness wears off, it gets damaged – you have to pull that plaster off a damaged part of skin, which is a very painful process,’ explains Reading’s Wayne Hayes, who led the team. ‘One of the key targets for our research was to develop materials that could automatically heal when damaged. In particular, we were interested in materials that could heal at 37°C – body temperature – to maintain protective barriers.’
When cut with a razor, strips of the polyurethane material flow back together as its supramolecular network has been disrupted, lowering viscosity at the affected area. Samples of the material are stable under simulated physiological conditions and initial testing on human skin cells suggests it would be safe for medical use. The polymer also retains its self-healing ability while adhering to pig skin.
At higher temperatures the polymer’s supramolecular network dissociates. ‘By an appropriate trigger, in this case heat, you can remove the polymer very easily by getting the network to break apart into its low molecular weight components which flow like a fluid.’ explains Hayes, ‘So there’s potential for developing reversible scaffolds for regenerative medicines.’
Bert Meijer, an expert on materials chemistry and supramolecular systems based at Eindhoven University of Technology in the Netherlands, describes the research as beautiful and finds the mild conditions required for self-repair particularly impressive: ‘It is remarkable how at body temperature the self-healing is performed rather quickly, while the structural integrity is maintained and thus the mechanical properties conserved.’
Learn more: Polymer repairs itself at body temperature
The Latest on: Self-healing polymers
via Google News
The Latest on: Self-healing polymers
- U.S. Army project may lead to new class of self-healing materials and therapeutics for soldierson November 18, 2019 at 1:52 pm
The ability to harness and adapt cellular machinery to produce non-biological polymers would, in essence, bring synthetic materials into the realm of biological functions. This could render advanced, ...
- Synthetic biologists developing a new class of high-performance materialson November 18, 2019 at 12:28 pm
"The ability to harness and adapt cellular machinery to produce non-biological polymers would, in essence, bring synthetic materials into the realm of biological functions. This could render advanced, ...
- US Army Synthetic Biology Research Advances Toward New Class of High-Performance Materialson November 18, 2019 at 10:03 am
“The ability to harness and adapt cellular machinery to produce non-biological polymers would, in essence, bring synthetic materials into the realm of biological functions. This could render advanced, ...
- Stretchable, self-healing and semiconducting polymer films for electronic skin (e-skin)on November 15, 2019 at 6:43 am
Next-generation polymers developed in the lab must become stretchable and self-healing to form novel skin-like sensory devices to meet the demands of futuristic electronic skin applications. Although ...
- ERC Starting Grant for Roxanne Kieltyka: stem cells in gelson November 15, 2019 at 2:18 am
For example, they can respond to their environment and show self-healing behaviour. ‘Both their structure and capacity to provide ... to interact with each other through non-covalent interactions and ...
- Researchers develop self-healing soft electronicson November 11, 2019 at 6:11 am
The key material to achieving Self-healing UI is MWCNTs-PBS, a composite material of a self-healing polymer polyborosiloxane (PBS) and a filler material multi-walled carbon nanotubes (MWCNTs), which ...
- 2019 Innovations in Advanced Fabrics, Semiconducting Polymers, Graphene, Bio-degradable Straws & Bottles - ResearchAndMarkets.comon November 7, 2019 at 4:10 pm
self-healing textiles developed from squid genes, fibers made from bioengineered spider silk and yeast, semiconducting polymer blends for use in high temperature electronics, liquid crystal elastomers ...
- Global Self-healing Material Marketon September 16, 2019 at 6:06 am
The scope of this report is broad and covers product types, materials and end users of self-healing materials.The market has been segmented by product type into asphalt, concrete, ceramic, polymers, ...
- Smart Polymers Market Scope, Product Estimates & Strategy Framework, Forecasts 2023on September 12, 2019 at 9:48 pm
The global Smart Polymers market was valued at $1,250 million in 2015, and is estimated to reach $3,070 million by 2022, growing at a CAGR of 12.6% from 2016 to 2022. In 2015, physical stimuli ...
- 'Self-Healing' Polymer Brings Perovskite Solar Tech Closer to Marketon June 17, 2019 at 12:24 pm
Adding a "self-healing" polymer to the top of a PSC can radically reduce how much lead it discharges into the environment. This gives a strong boost to prospects for commercializing the technology.
via Bing News