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Image:Pig lung being irradiated with red light to inactivate viruses; Copyright: Cristina Kurachi

Radiation: eliminating bacteria and viruses

15/04/2019

A new technique for the decontamination of organs before transplantation using ultraviolet and red light irradiation has been developed by Brazilian and Canadian researchers and is described in an article published in the journal Nature Communications.
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Image: purple 3D human knee meniscus created using the ultrasound-assisted biofabrication technique; Copyright: Rohan Shirwaiker, NC State University

Ultrasound aligns living cells in bioprinted tissues

12/04/2019

North Carolina State University researchers have developed a technique to improve the characteristics of engineered tissues by using ultrasound to align living cells during the biofabrication process.
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Image: mold of local teen Josie Fraticelli's hand that was scanned during the development of a personalized prosthetic; Copyright: Virginia Tech

Orthopedics: personalized prosthetics from the 3D printer

08/04/2019

With the growth of 3D printing, it's entirely possible to 3D print your own prosthetic from models found in open-source databases. But those models lack personalized electronic user interfaces like those found in costly, state-of-the-art prosthetics.
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Image: Construction of an organelle in a living cell for protein biosynthesis; Copyright: Gemma Estrada Girona

Laboratory technology: designer organelles in cells

01/04/2019

A research team led by biophysical chemist Professor Edward Lemke has engineered a designer organelle in a living mammalian cell in a new complex biological translation process. The created membraneless organelle can build proteins from natural and synthetic amino acids carrying new functionalities.
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Image: Picture of a new optical visualization of nano objects; Copyright: Kazan Federal University

Laboratory technology: New way of optical visualization?

01/04/2019

High-resolution optical microscopy methods promise breakthroughs in materials science, biology, and medicine. Today, their possibilities basically reach those of scanning electron microscopy.
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Image: Transmission electron micrograph of heart muscle; Copyright: WWU Münster - Andreas Unger

Laboratory technology: New heart muscle component discovered

22/03/2019

The heart exerts muscular force by contracting numerous contractile units of the heart muscle. Biologists at Münster University have found out that a specific motor protein is responsible for the assembly and mechanical stability of these contractile units in the heart. The study has been published in “The Journal of Biological Chemistry”.
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Image: nanocrystals derived from plant cellulose; Copyright: Clare Kiernan, UBC

Implants: From foam to bone

20/03/2019

Researchers from the University of British Columbia and McMaster University have developed what could be the bone implant material of the future: an airy, foamlike substance that can be injected into the body and provide scaffolding for the growth of new bone.
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Image: Dennis Eickelbeck (left) and Stefan Herlitze make cells glow - with so-called optogenetics.; Copyright: RUB, Marquard

Thanks to light: Controlling and visualizing

18/02/2019

Using a novel optogenetic tool, researchers have successfully controlled, reproduced and visualised serotonin receptor signals in neural cells.
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Image: Graphic rendering of several cells in a petri dish; Copyright: panthermedia.net/dani3315

Organ-on-a-chip systems: limited validity?

01/02/2019

Organ-on-a-chip systems are technically a great enhancement of medical research because they facilitate testing of active ingredients on cell cultures in the chambers of a plastic chip. This replaces animal testing and improves patient safety. That being said, they are not a true-to-life replication of the human body and can only simulate a few functions and activities.
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Image: A female researcher is looking at a sample on a glass slide; Copyright: Tristan McGuirk

How to train lab-grown heart cells

01/02/2019

Heart muscle cells need exercise - even when they grow outside the human body. A new device designed by U of T Engineering researchers uses a rigorous training regimen to grow small amounts of cardiac tissue and measure how strongly it beats. The platform is ideal for testing the effects of potential drug molecules and could help bring personalized medicine closer to reality.
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Image: Healthy mucus layer (red) keeping Escherichia coli (green) at a safe distance within the colon, preventing them from breaking throug; Copyright: Bahtiyar Yilmaz, University of Bern

Discovery of bacterial signature of intestinal disease

22/01/2019

Researchers from the Department of Biomedical Research of the University of Bern and the University Clinic of Visceral Surgery and Medicine of the Inselspital Bern, Switzerland, have discovered that changes in the composition of the intestinal bacteria in patients with chronic inflammatory bowel disease affect the severity of the disease and the success of therapy.
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Image: Small brown mole on the back of a hand; Copyright: panthermedia.net/Mario Hahn

Early detection: Tattoo signals cancer – and more

09/07/2018

People who are not ill and do not show any symptoms typically do not visit the doctor. And while most people know that preventive medical checkups for cancer, for example, are important, they still avoid them. They tend to be very hesitant because the doctor might detect a serious illness. In the future, a new type of implant could make it easier to go to a screening test.
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Image: Two hands are holding a tubular frame that is carrying a glistening wet, white tube; Copyright: Leibniz University of Hanover/Institute of Technical Chemistry

Tissue engineering: how to grow a bypass

23/04/2018

A bypass is a complicated structure. It is either made of synthetic materials that can cause blood clots and infections or created by using the patient’s veins. However, the latter often does not yield adequate material. A newly developed bioreactor could solve this problem in the future. It is designed to tissue engineer vascular grafts by using the body’s own material.
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Image: In a movement laboratory, a man is wearing sensors on his legs and armst, while walking. During this he is being recorded and observed; Copyright: DAS BILD für ZHAW Gesundheit

"XoSoft" Project – Wearable Intelligent Exoskeleton

01/06/2017

After a stroke or as a result of aging, there are many situations when people are impaired in their walking ability and rely on a personal assistant or auxiliary aids and services. The XoSoft Project offers a solution: a soft exoskeleton that can be worn like a pair of leggings and stiffens or softens, depending on the situation.
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