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Image: Cells in a 3D scaffold; Copyright: TU Wien

Bioprinting: living cells in a 3D printer

22.10.2019

Tissue growth and the behavior of cells can be controlled and investigated particularly well by embedding the cells in a delicate 3D framework. This is achieved using additive 3D printing methods - so called "bioprinting" techniques. However, some methods are very imprecise or only allow a very short time window in which the cells can be processed without being damaged.
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Image: man driving his car by night; Copyright: panthermedia.net / peshkova

Cataract surgery: more safety on the road

18.10.2019

The ability of cataract surgery to restore sight is well known. People say they're stunned by the vibrancy of color after surgery and the improvement in night vision. Some can even reduce their reliance on glasses. But is it possible to quantify that improved quality of vision?
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Image: silver nanopillars on a blue background; Copyright: Northwestern University

Nanotechnology: tiny biocompatible laser

25.09.2019

Nanolaser has potential to treat neurological disorders or sense disease biomarkers. Researchers have developed a tiny nanolaser that can function inside of living tissues without harming them. Just 50 to 150 nanometers thick, the laser is about 1/1,000th the thickness of a single human hair.
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Image: researcher works on the imaging device with a screw driver; Copyright: University of Waterloo

Imaging: revolutionizing cancer surgery

18.09.2019

Cancer treatment could be dramatically improved by an invention at the University of Waterloo to precisely locate the edges of tumors during surgery to remove them.
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 Image: Research team of nonoparticle sensor; Copyright: Asociación RUVID

Optical sensor: detects very low glucose concentrations

17.09.2019

The Optical Research Group of the Universitat Jaume I has developed an optical nanoparticle sensor capable of detecting very low glucose concentrations, such as those present in a person's tear, by means of fluorescent carbon quantum dots, applying synthesis of nanomaterials based on irradiation with ultra-short lasers, which is an alternative, sustainable and non-polluting method.
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Image: Ellipsoid of revolution with a gold coating to detect backscattered photons from the skin tissue; Copyright: Sven Delbeck/Fachhochschule Südwestfalen

Blood Sugar Monitoring: Using Infrared Instead of Invasive Techniques

22.03.2019

Over six million people in Germany have diabetes. It is estimated that almost 400 million people are affected by this disease worldwide. Diabetes sufferers must prick their fingers several times a day to monitor their blood sugar.
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Image: Colored sonographic image of the human heart from Doppler ultrasonography; Copyright: panthermedia.net/Belish

Imaging techniques: ultrasound, MRI, CT, catheters and other procedures to keep a healthy heart

01.09.2017

Many people are affected by heart disease today because - among other reasons- our modern unhealthy lifestyle is taking a toll on our hearts. A reliable diagnosis and treatment are crucial for patients with heart disease since all other organs depend on the pumping of our vital organ. Modern imaging techniques are a key to understanding the heart.
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Image: An eye surgeon and an assistant are treating a patient with a surgical laser; Copyright: University Hospital Dresden/Felix Koopmann

Eye surgery: precision and prevention with femtosecond lasers

03.07.2017

Precision work is absolutely essential in eye surgery since the surgical site is very minute and sensitive. This is why eye surgeons have been using lasers for years. Femtosecond lasers are especially well suited to serve this purpose because they are able to cut tissue with great precision and little energy, which prevents unwanted side effects of surgery.
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Image: A flat device with a touch screen; Copyright: biolitec AG

Surgical lasers: the quest to be compact, mobile, and user-friendly

03.07.2017

Not all lasers are the same – especially in the surgical field, it all depends on what’s inside: the different operational wavelengths of laser light also affect human tissue in different ways. This is why a single laser for a variety of applications drastically simplifies the job of physicians.
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Image: A dermatology laser is used to remove a mole; Copyright: panthermedia.net/Michael Krause

Laser surgery: usability, flexibility, treatment quality

03.07.2017

The scalpel is considered the classic surgical instrument and as such, has remained unchanged for quite some time. However, today’s technology opens up a world of new possibilities for cutting tissue. Next to high-frequency electrosurgical scalpels that work with electric power, surgeons also use a variety of different lasers. They promise great usability and better treatment.
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Photochemical internalization – A new hope against bile duct cancer?

03.07.2017

Advanced bile duct tumors cannot always be removed surgically. Then, patients receive chemotherapy and a stent that corrects the narrowing of the bile duct that is caused by the tumor. Another, local therapy option is tested at the University Hospital Frankfurt: laser light is used to transport drugs into the tumor during photochemical internalization.
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