Bioengineering

Displaying 21 - 30 of 199

3D-printed implants could improve hearing loss treatments

3D-printed implants could improve hearing loss treatments
Researchers using CT scans and 3D printing have created accurate, custom-designed prosthetic replacements for damaged parts of the middle ear, according to a study being presented today at the annual meeting of the Radiological Society of North America (RSNA). The technique has the potential to improve a surgical procedure that often fails because of incorrectly sized prosthetic implants, researchers said.
14th December 2017

Nanomaterials may help to kill specific cancer cells

Nanomaterials may help to kill specific cancer cells
Researchers from KTH have succeeded in taking the next step toward using man-made nanoscale compounds in the fight against cancer. A recent proof-of-concept study showed that dendrimers – which were first introduced in the 1980s – may be used to introduce compounds that essentially trick cancer cells into performing self-destructive tasks. Dendrimers – or cascade molecules – are organically synthesised large molecules that match nature's peptides and proteins with respect to size and structure.
14th December 2017

Portable gel could save an injured eye

Portable gel could save an injured eye
When a soldier sustains a traumatic eye injury on the battlefield, any delay in treatment may lead to permanent vision loss. With medical facilities potentially far away and no existing tools to prevent deterioration, medics are in a high-stakes race against the clock. A multidisciplinary team of scientists and engineers at USC are close to solving the problem. They have developed a reversible, temperature-sensitive temporary seal that changes from a fluid to a super-strong semi-solid when applied to the eye.
11th December 2017


Heart model helps 16-year-old heart tumour patient

Heart model helps 16-year-old heart tumour patient
  It’s devastating news when you find out that your grandchild was born with a heart tumour. This was the news that Christine White heard when her grandson, Bradley, was only three. Over the next several years, Bradley had to undergo several open heart surgeries including having a defibrillator implanted to protect him from sudden cardiac death.
11th December 2017

3D printing lifelike artificial organ models

3D printing lifelike artificial organ models
A team of researchers led by the University of Minnesota has 3D printed lifelike artificial organ models that mimic the exact anatomical structure, mechanical properties, and look and feel of real organs. These patient-specific organ models, which include integrated soft sensors, can be used for practice surgeries to improve surgical outcomes in thousands of patients worldwide. The research was published in the journal Advanced Materials Technologies. The researchers are submitting a patent on this technology.
11th December 2017

'Living tattoo': 3D printing programmed cells into devices

'Living tattoo': 3D printing programmed cells into devices
MIT engineers have devised a 3D printing technique that uses a new kind of ink made from genetically programmed living cells. The cells are engineered to light up in response to a variety of stimuli. When mixed with a slurry of hydrogel and nutrients, the cells can be printed, layer by layer, to form 3D, interactive structures and devices. The team has then demonstrated its technique by printing a “living tattoo” — a thin, transparent patch patterned with live bacteria cells in the shape of a tree.
11th December 2017

Building virus-sized structures through mass production

Building virus-sized structures through mass production
It is the double strands of our genes that make them so strong. Using a technique known as DNA origami, biophysicist Hendrik Dietz has been building nanometer-scale objects for several years at the Technical University of Munich (TUM). Now Dietz and his team have not only broken out of the nanometer realm to build larger objects, but have also cut the production costs a thousand-fold. These innovations open a whole new frontier for the technology.
8th December 2017

Forming a bioactive spider silk for medical use

Forming a bioactive spider silk for medical use
  With recent advances, technology can be used to synthesise silk with similar mechanical properties as an actual spider’s. But applying this material to promising medical therapies for illnesses such as cancer requires that humans develop a capability that only arachnids or silkworms possess – the ability to control the formation of silk.
5th December 2017

Biocompatible ink for 3D printing makes use of living bacteria

Biocompatible ink for 3D printing makes use of living bacteria
A group of ETH researchers led by Professor André Studart, Head of the Laboratory for Complex Materials, has now introduced a 3D printing platform that works using living matter. The researchers developed a bacteria-containing ink that makes it possible to print mini biochemical factories with certain properties, depending on which species of bacteria the scientists put in the ink.
5th December 2017

Muscle subsets orchestrate and configure regrowth

Muscle subsets orchestrate and configure regrowth
Researchers at the Whitehead Institute have illuminated an important role for different subtypes of muscle cells in orchestrating the process of tissue regeneration. In a paper appearing online in Nature, they reveal that a subtype of muscle fibres in flatworms is required for triggering the activity of genes that initiate the regeneration program. Notably, in the absence of these muscles, regeneration fails to proceed.
23rd November 2017


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