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Bones

Researchers have developed coated magnetic nanoparticles that can be used to help regenera...

When a bone is severely broken in the human body, or a bone-fused prosthesis is implanted, a bone graft is also often required to ensure a solid mechanical repair. However, a graft that removes bone from another area of the body can be a painful and invasive procedure, and the mechanical stimulation required for continued bone regeneration in post-operative therapy becomes problematic if a patient is severely immobilized. To address these problems, researchers have discovered that coating magnetic nanoparticles with proteins and then directing them magnetically to the site of the injury can help stimulate stem cells to regenerate bone.  Read More

An x-ray displaying BoneFinder-enhanced hip bones

Despite what cartoons may have us believe, x-rays don't always show bones as being sharply defined from the surrounding tissue. It's often difficult to tell where the one ends and the other begins, requiring clinicians to go through the images and manually draw in the outlines of bones. Now, however, free software known as BoneFinder is able to do so automatically.  Read More

MIT's porous tissue scaffold, as imaged by an electron microscope (Image: MIT)

A team of chemical engineers from MIT has developed a new method of stimulating bone growth, by utilizing the same chemical processes that occur naturally in the human body following an injury such as a broken or fractured bone. The technique involves the insertion of a porous scaffold coated with growth factors that prompt the body's own cells to naturally mend the damaged or deformed bone.  Read More

The shape-memory polymer is soft when heated, but turns stiff as it cools

Whether they're the result of injuries, surgery or birth defects such as cleft palate, missing sections of bone in the skull or jaw can certainly affect someone's appearance. Although there are some methods of filling in such gaps, they have limitations that limit their application. A newly-developed foam-like material, however, may be able to succeed where other approaches have failed.  Read More

A vial of the clear hydrogel turns to a white semi-solid as it's heated to body temperatur...

In the field of regenerative medicine, one of the current areas of interest involves the use of scaffolding-like materials that a patient's own cells can be "seeded" onto. As the cells grow and populate the material, they gradually replace it, until all that remains is a solid piece of tissue or bone. Now, scientists at Houston's Rice University have taken that concept a step further, using a polymer that is liquid at room temperature, but that solidifies into a scaffold when injected into patients' bodies.  Read More

King's College London students sporting the gravity loading countermeasure skinsuit (Photo...

Researchers from King's College London working with the Massachusetts Institute of Technology (MIT) have produced a skinsuit which, if worn by astronauts in outer space, could counteract the degradation of bone and muscle mass during long term exposure to microgravity.  Read More

Protein from silkworm cocoons has been used to create strong yet biodegradable bone fixati...

Silk is an amazingly strong material, yet it also harmlessly biodegrades when left in the body. This has led to its use in experimental brain implants, heart patches, and even bio-electronics. According to a new study conducted by scientists at Tufts University School of Engineering and Beth Israel Deaconess Medical Center, it may now also find use in the production of better plates and screws used for securing broken bones.  Read More

The design of the automated filleting machine developed by the APRICOT project

Manual filleting of fish can be a time-consuming task. Due to higher salaries in Nordic countries, processing of fish caught there is often carried out in places like Asia, Eastern Europe and Russia where labor costs are lower, before the fish is returned to Scandinavia for sale. The APRICOT (Automated Pinbone Removal In Cod and WhiTefish) project set out in January, 2012 to find an automated solution that would keep fish processing local and it has now developed a machine that achieves just that.  Read More

The 3D-printed vertebral body next to the original unprepared and erroneously labeled plas...

Access to rare fossils is limited, potentially putting a go-slow on their study, while sharing them around increases the risk of damaging them. Researchers at Berlin's Charité Campus Mitte have combined data from computed tomography (CT) scans with 3D printing technology to make it possible to print any number of accurate 3D reproductions of fossilized bones, without any adverse effect on the originals.  Read More

Scientists have created a collagen-based patch that uses synthetic DNA to stimulate bone g...

Help could be on the way for people who don't have enough bone to support dental implants, who are missing bone due to a birth defect, or who have suffered bone-damaging injuries. Scientists at the University of Iowa have created an implantable collagen patch seeded with particles containing synthetic DNA, that instructs the patient's own cells to produce the protein that leads to bone growth.  Read More

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