Tag: Materials

Tactile Enhancement to Compensate for Loss of Sensation

A variety of medical conditions, including diabetic neuropathy, infections, and injuries, can lead to a reduced ability to feel touch with one’s skin. This can be frustrating and uncomfortable, but it can also result in an inability to walk in comfort, notice wounds and injuries, and deal with everyday tasks. Now researchers in China are [&he (Read more...)

Pill-Sized Chemical Heater for Point-of-Care Diagnostic Tests

Researchers at the University of Toronto have developed a miniaturized chemical heater that can precisely heat biological samples during diagnostic tests, but does not require electricity or any specialized equipment to work. The low-cost technology is based on the exothermic reaction that occurs when lithium encounters water, and the precise shape (Read more...)

Brain Implant Powered and Controlled by Magnetic Fields

Neural implants may provide treatment options for a wide variety of ailments, including Parkinson’s and epilepsy, but such devices have to work for long periods of time in a very difficult environment inside the cranium. One challenge is providing power to brain implants and another is communicating with such implants to control their functio (Read more...)

Scientists Make Organs Transparent

Whole organs are difficult to study in minute detail, as they have to be sliced into extremely thin sections to map out their interior. CT and magnetic resonance imaging help to an extent, but researchers at the Helmholtz Zentrum München, Ludwig Maximilians University Munich, and Technical University of Munich in Germany have managed to make [ (Read more...)

Artificial Tissue Patches to Heal Damaged Hearts

Post myocardial infarction (heart attack), damaged heart tissue doesn’t tend to heal very well. Not only is the pumping action weakened due to muscle cells dying, but the electrical signaling through the heart can also be impeded. Scientists at Trinity College Dublin have now developed remarkable new patches that mimic the electrical conducti (Read more...)

3D Printed Implants With Layers of Living Cells

3D printing replacement tissues and organs is still in the early stages of development, but it is clear that custom printed implants will have to integrate multiple types of cells in different locations in order to perform like native tissues. Researchers at Rice University have just unveiled a new method of 3D printing solid plastic […]

New Customizable Bio-Ink for Printing Organs, Tissues

3D printing of tissues and organs requires a bio-ink that can host the living cells that are required for every unique application. A viable construct requires an extracellular matrix that will have the right mechanical and biochemical properties for the intended cells. Researchers at Rutgers University believe they’re on track to being able (Read more...)

4D Printing to Make Barbs for Microneedle Arrays

Microneedle arrays are promising as a way to help heal wounds, administer drugs, and sense a variety of biomarkers of health and disease. Because of their tiny size and smooth surface, microneedles don’t stay put in the tissues they’re attached to and tend to fall off if not kept in place by some means. Now, […]

Biorobotic Hybrid Heart to Help Develop New Cardiac Implants

Prosthetic heart valves, ventricular assist devices, and other cardiac implants go through an extensive research and development process, followed by testing on animals before human trials. There is no machine that simulates the function of the heart with any sufficient accuracy for comprehensive use by device designers, but researchers at MIT are (Read more...)

Liquid Metal Biosensors for Healthcare Monitoring

Flexible biosensors are a popular new field of research. Soft pressure sensors are of particular interest because there are many applications for them in healthcare. Most flexible pressure sensors are based on solid-state components that tend to rely on carbon nanotubes and graphene. Carbon nanotubes or graphene flakes are seeded through a stretchy (Read more...)

Antimicrobial Layer for Plastic Food Wrap Developed

Bacteria can take a ride and proliferate on the plastic wrap that foods are commonly packaged in. Researchers at Penn State have developed a way to bond a non-toxic transparent antimicrobial material to the ubiquitous polyethylene wrap that meats, vegetables, and mushrooms are sold in. The antimicrobial layer is made of a pullulan-based biopolymer, (Read more...)