Someone suffers second- or third-degree burns: The wound must immediately be dressed and the dressing is to be changed regularly.
A short movie made by the group of Prof. Dr.-Ing. Stephan Barcikowski (University of Duisburg-Essen) shows the development of a dressing that promotes wound healing – from the materials research laboratory until the first practical trial (in English).
Even small area burns can be delicate, because healthy skin is our largest and most effective barrier against pathogens. It is therefore essential to support the wound healing process and to fight germs at the same time. Some metal ions, such as zinc or iron are known to accelerate healing.
Currently, the challenge for research is to develop an appropriate substrate to release the active ingredients gradually. In addition, it must be ensured that the active ingredients are harmful to bacteria but harmless to the human body.
Technical Chemist Nina Million from University of Duisburg-Essen (UDE) has developed a wound dressing containing nano zinc during her master thesis and was awarded the prize for the best thesis in 2013 by the German Society for Biomaterials. She removed zinc oxide and iron oxide nanoparticles from solid targets by laser pulses and applied them in a sponge-like carrier material.
This so-called microgel is arranged like a network enclosing the particles. Applied to a wound, it gradually releases antibacterial ions, while the particles themselves remain inside the microgel. Recently, studies adjusting the dose and thus optimizing the composition were successfully completed on rats.
The development succeeded in collaboration with the DWI – Leibniz Institute for Interactive Materials in Aachen and Hannover Medical School. An approximately four-minute movie produced together with the “Beilstein Institute zur Förderung der Chemischen Wissenschaften“ in Frankfurt clearly reconstructs the development process – in terms of interviews, laboratory demonstrations and explanatory drawings.
"It was fun to make this film," says Million. "But I also realized how difficult it is to summarize and communicate our own research in just a few words."
She can be proud of the result „Laser rapid prototyping of bioactive materials for medical treatment“ (in English):
Responsible for Press Release: Birte Vierjahn, Tel. +49 (0) 203 379 8176, firstname.lastname@example.org
Ulrike Bohnsack | idw - Informationsdienst Wissenschaft
Meadows beat out shrubs when it comes to storing carbon
23.11.2017 | Norwegian University of Science and Technology
Migrating Cells: Folds in the cell membrane supply material for necessary blebs
23.11.2017 | Westfälische Wilhelms-Universität Münster
Heat from the friction of rocks caused by tidal forces could be the “engine” for the hydrothermal activity on Saturn's moon Enceladus. This presupposes that...
The WHO reports an estimated 429,000 malaria deaths each year. The disease mostly affects tropical and subtropical regions and in particular the African continent. The Fraunhofer Institute for Silicate Research ISC teamed up with the Fraunhofer Institute for Molecular Biology and Applied Ecology IME and the Institute of Tropical Medicine at the University of Tübingen for a new test method to detect malaria parasites in blood. The idea of the research project “NanoFRET” is to develop a highly sensitive and reliable rapid diagnostic test so that patient treatment can begin as early as possible.
Malaria is caused by parasites transmitted by mosquito bite. The most dangerous form of malaria is malaria tropica. Left untreated, it is fatal in most cases....
The formation of stars in distant galaxies is still largely unexplored. For the first time, astron-omers at the University of Geneva have now been able to closely observe a star system six billion light-years away. In doing so, they are confirming earlier simulations made by the University of Zurich. One special effect is made possible by the multiple reflections of images that run through the cosmos like a snake.
Today, astronomers have a pretty accurate idea of how stars were formed in the recent cosmic past. But do these laws also apply to older galaxies? For around a...
Just because someone is smart and well-motivated doesn't mean he or she can learn the visual skills needed to excel at tasks like matching fingerprints, interpreting medical X-rays, keeping track of aircraft on radar displays or forensic face matching.
That is the implication of a new study which shows for the first time that there is a broad range of differences in people's visual ability and that these...
Computer Tomography (CT) is a standard procedure in hospitals, but so far, the technology has not been suitable for imaging extremely small objects. In PNAS, a team from the Technical University of Munich (TUM) describes a Nano-CT device that creates three-dimensional x-ray images at resolutions up to 100 nanometers. The first test application: Together with colleagues from the University of Kassel and Helmholtz-Zentrum Geesthacht the researchers analyzed the locomotory system of a velvet worm.
During a CT analysis, the object under investigation is x-rayed and a detector measures the respective amount of radiation absorbed from various angles....
15.11.2017 | Event News
15.11.2017 | Event News
30.10.2017 | Event News
23.11.2017 | Information Technology
23.11.2017 | Physics and Astronomy
23.11.2017 | Life Sciences