Multicellular liver-on-a-chip for modeling fatty liver disease
15/03/2021
Non-alcoholic fatty liver disease (NAFLD) is the most prevalent chronic liver disease worldwide. It is found in 30% of people in developed countries and occurs in approximately 25% of people in the United States. Risk factors for the disease include obesity, diabetes, high cholesterol and poor eating habits, although this does not exclude individuals without these risk factors.
Rapid 3D printing method moves toward 3D-printed organs
08/03/2021
It looks like science fiction: A machine dips into a shallow vat of translucent yellow goo and pulls out what becomes a life-sized hand. But the video is real. The hand, which would take six hours to create using conventional 3D printing methods, demonstrates what University at Buffalo engineers say is progress toward 3D-printed human tissue and organs.
Bernese researchers create sophisticated lung-on-chip
12/02/2021
A specialized laboratory of the ARTORG Center for Biomedical Engineering Research, University of Bern, headed by Olivier Guenat has developed a new generation of in-vitro models called organs-on-chip for over 10 years, focusing on modeling the lung and its diseases.
'Up-sizing' mini organs used in medical research
11/02/2021
A team of engineers and scientists has developed a method of 'multiplying' organoids: miniature collections of cells that mimic the behavior of various organs and are promising tools for the study of human biology and disease.
Tissue Engineering and Bioprinting – From artificial heart valves and printed humans
27/01/2021
Drug research and artificial skin replacement - these are the areas in which tissue engineering and bioprinting are already used today. What else could be possible in the future? We asked Dr. Nadine Nottrodt from Fraunhofer ILT and Prof. Sabine Neuß-Stein from RWTH Aachen University Hospital!
Lasers and molecular tethers create platforms for tissue engineering
19/01/2021
Imagine going to a surgeon to have a diseased or injured organ switched out for a fully functional, laboratory-grown replacement. This remains science fiction and not reality because researchers today struggle to organize cells into the complex 3D arrangements that our bodies can master on their own.
Organoid Models: Illuminating Path to Cervical Cancers
19/01/2021
Organoids are increasingly being used in biomedical research. These are organ-like structures created in the laboratory that are only a few millimetres in size. Organoids can be used to study life processes and the effect of drugs. Because they closely resemble real organs, they offer several advantages over other cell cultures.
Multi-photon lithography: printing cells with micrometer accuracy
01/12/2020
How do cells react to certain drugs? And how exactly is new tissue created? This can be analyzed by using bioprinting to embed cells in fine frameworks. However, current methods are often imprecise or too slow to process cells before they are damaged. At the TU Vienna, a high-resolution bioprinting process has now been developed using a new bio-ink.
Printed life – possibilities and limits of bioprinting
01/12/2020
Implants, prostheses and various other components made of plastic, metal or ceramics are already being produced by additive manufacturing. But skin, blood vessels or entire organs from the printer – is that possible? For years now, intensive research has been underway into the production of biologically functional tissue using printing processes. Some things are already possible with bioprinting.
"Cells are highly sensitive" – material development for bioprinting
01/12/2020
The big hope of bioprinting is to someday be able to print whole human organs. So far, the process has been limited to testing platforms such as organs-on-a-chip. That's because the actual printing process already poses challenges. Scientists need suitable printing materials that ensure the cell's survival as it undergoes the procedure. The Fraunhofer IGB is researching and analyzing this aspect.
Bioprinting: life from the printer
01/12/2020
It aims at the production of test systems for drug research and gives patients on the waiting lists for donor organs hope: bioprinting. Thereby biologically functional tissues are printed. But how does that actually work? What are the different bioprinting methods? And can entire organs be printed with it? These and other questions are examined in our Topic of the Month.
Angiogenesis: light shows blood vessels the way
03/02/2020
Regenerative medicine aims to replace damage in the body with functional tissue and restore normal function. The first defense for large defects are implants made of hydrogels, designed to promote cell growth. They need their own blood supply, which is a problem when it comes to larger implants because you cannot regulate where and how the blood vessels grow - until now.
Regenerative medicine: creating a new body?
03/02/2020
Regenerative medicine aims to repair the human body after injuries, accidents or major cancer surgery. Unfortunately, we are still not at a stage where this process can achieve optimal results for every conceivable situation. Having said that, various new methods are on the cusp of breakthrough.
Regenerative medicine: helps the body healing
03.02.2020
Severe wounds heal slowly and leave scars. This is why we have been using regenerative therapies for some time now to accelerate and improve healing. They also help to avoid permanent damage. Still, complex applications like replacing organs or limbs will rather remain vision than become reality for a long time.
A new type of endoscopy – small, easy, comfortable
22/01/2020
Patients have to undergo a gastroscopy to rule out gastrointestinal conditions. Many dread this procedure since a thin, flexible tube is being pushed through the esophagus and stomach. Ovesco Endoscopy AG has teamed up with other project partners in the nuEndo research project to develop a capsule endoscopy device that is tiny, easy to swallow and makes the test more comfortable for the patient.
APRICOT-project: implant "help(s) patients heal themselves"
01/01/2020
Today, people tend to live longer, while an increasing number of patients suffer from osteoarthritis. Even younger generations are now at a higher risk of getting osteoarthritis due to the frequent use of mobile devices. The EU research project APRICOT aims to develop a novel type of implant for the treatment of osteoarthritis of the hands – helping patients heal themselves.
Endoprosthetic surgery: modern and traditional approaches
01/01/2020
Surgery is required if you need an artificial joint. Patients and doctors must select the type of surgery that’s best suited and choose between robot-assisted, traditional or minimally invasive surgical approaches. Post-operative risks should be kept to a minimum, while benefits should outweigh any possible complications.
Cardiac diagnostics – prompt and personalized
08/11/2019
If physicians suspect an acute myocardial infarction, they first order an ECG. This test is very established and allows cardiologists to quickly diagnose acute heart attacks – though the test does not detect less common heart attack symptoms. So far, those patients had to wait up to twelve hours before a heart attack could be accurately diagnosed or ruled out. But things are about the change.
Cardiac Tissue Engineering: a heart out of the Petri dish
23/09/2019
For patients waiting for donor organs, every day can mean the difference between life and death. Making things even more complicated is the fact that not every organ is a compatible match with the patient. It would mean enormous progress if we could grow organs from the patient's own cells in the lab. That's why patients with heart disease place big hope in tissue engineering.
Restoring Pulmonary Function
01/03/2019
People suffering from lung disease temporarily need ventilator support because they are unable to breathe naturally. Mechanical ventilation is designed to ensure the survival of these patients. The goal is to adapt the ventilator settings and tailor them the patient's specific needs and prevent lung tissue damage.
Gentle medication for the little ones – with every breath
22/02/2019
According to the WHO, ten percent of babies worldwide are born prematurely. Since most organs of these tiny babies have not fully developed yet, it can quickly lead to complications and disorders and most notably affect the lungs of the premature infants. What's more, infections require gentle treatment, as the preemies themselves are fragile and susceptible – making this a challenging situation.
Organ-on-a-chip – Organs in miniature format
01/02/2019
In vitro processes and animal tests are used to develop new medications and novel therapeutic approaches. However, animal testing raises important ethical concerns. Organ-on-a-chip models promise to be a feasible alternative. In a system the size of a smartphone, organs are connected using artificial circulation.
Multi-Organ Chips – The Patients of Tomorrow?
01/02/2019
The liver, nervous tissue or the intestines: all are important human organs that have in the past been tested for their function and compatibility using animal or in vitro test methods. In recent years, TissUse GmbH, a spin-off of the Technical University of Berlin (TU Berlin), has launched multi-organ chip platforms. But that’s not all.
AI ensures dynamic sitting
22/01/2019
Whether in the office, at school or behind the wheel: we spend a lot of time sitting and often stay in the same position for too long. The possible side effects are stiffness, back problems and pain. The SensA-Chair smart seating solution combats decreased mobility and ensures dynamic sitting.
Lung Imaging – Keeping the Respiratory System Healthy
05/10/2018
Many people have damaged or suboptimally functioning lungs. An accurate diagnosis and subsequent treatment are vital to protect this life-sustaining organ. Modern imaging solutions help physicians and patients understand what happens inside the lungs.
Regenerative heart valves: from simulation to replacement
23/07/2018
Every year, more than 250,000 patients worldwide receive heart valve implants. Children require repeated replacement surgery because their bodies are still growing, the prosthetic heart valves are not. Regenerative heart valves solve this problem. Until now, we have only been able to monitor how these living implants develop in the body after the fact. Computer models now make this predictable.
Organ Care System: treatment under extreme conditions
08/05/2018
Multidrug-resistant organisms that are treated with a dosage that exceeds the regular dose a hundred times and at temperatures of over 40 degrees Celsius – the human organism is unable to handle it. Yet if the diseased organ is treated outside of the body, extreme conditions are an option. For the first time, physicians have succeeded in treating a severe case of pneumonia by using the OCS.
Precision surgery thanks to informative hyperspectral imaging
08/02/2018
When body tissue is reconnected during a tumor operation in the gastrointestinal tract, surgeons need information about the current state of these so-called anastomoses. The new, non-invasive hyperspectral imaging technology now makes it possible to measure the crucial parameters during surgery and thereby increase surgical precision.