Category Archives: Nanomedicine

Crumpled Carbon Nanotube Forests to Power Medical Devices

Most implantable and wearable medical devices benefit from having on-board batteries powering them, but because conventional batteries have specific internal geometries, they end up being blocky and not flexible. This limits development of the electronic devices, especially pliable ones, since the human body itself is mostly soft and flexible. While flexible electronics is already a … Continue reading

Two-Dimensional Nanodisks Deliver Proteins, Growth Factors to Repair Cartilage

Once cartilage is damaged, there is little that can be done to repair it. Unlike many other tissues, cartilage doesn’t heal well and consequences of injuries and disease can last a lifetime. Now researchers at Texas A&M University have developed an unusual new class of materials that may give cartilage a way of repairing itself. … Continue reading

Implant Attached to Heart Generates Electricity to Power Pacemaker

Pacemakers, defibrillators and other cardiac implants are life saving devices, but the batteries inside of them remain their Achilles’ heel. Every five to ten years they have to be replaced in another invasive surgery that patients abhor and that put a high cost on the healthcare system. Harvesting energy from inside the body to power … Continue reading

Injectable Bone Scaffolding Made of Plant Cellulose

The majority of bone implants, cements, and grafts are hard objects that don’t always work well in filling the space they’re supposed to inhabit. Soft objects can gently expand and relocate their mass evenly over a volume, and they tent to be less dense so as to leave room for cells to make home inside … Continue reading

Microrobots Swim Through Vessels, Deform to Snake Through Tortuous Passageways

Researchers at Ecole polytechnique fédérale de Lausanne and ETH Zurich in Switzerland have developed tiny robots that could pave the way for advanced drug delivery. Inspired by bacteria, the microrobots can swim through fluids and modify their shape so as to pass through narrow blood vessels or intricate structures. The researchers hope that the devices … Continue reading

Gold Infused Cotton Threads as Electrodes for Glucose Biofuel Cells

Safe and powerful biofuel cells may help power future medical implantables, and researchers at Georgia Institute of Technology and Korea University are helping to make that happen. The team of collaborators has developed a glucose-powered fuel cell that relies on gold-infused cotton fibers to achieve a new level of efficiency for such devices. Gold nanoparticles are … Continue reading

Electronic Synthetic Cells Small Enough for Injections

If injectable autonomous robots are to be used in medicine, they must be tiny and capable of being manufactured by the million. They must also have some kind of electronics inside for diagnostic or therapeutic capabilities. Researches at MIT have developed a method for producing so-called “syncells,” or synthetic cells, that can process data inputs … Continue reading

Spray-On Electronic Skin as Tactile Sensor for Prostheses

Prosthetic arms and legs of the future will have tactile sensitivity as a feature, but a lot of work still has to be done to get there. A couple issues that have proven to be engineering challenges is how to cover complex 3D surfaces, such as the hand, with sensors and how to make those … Continue reading

Mechanoceuticals to Replace Chemical Drugs by Tugging on Cells

Chemicals, delivered in the form of drugs, are the most common way of influencing the activities of cells in our bodies. While great in many ways, there are a myriad of limitations and side effects for clinicians and patients to grapple with. UCLA bioengineers are investigating whether targeted physical manipulation could serve as an additional … Continue reading

Flexible and Conductive Mesh for Implantable and Wearable Bioelectronics

Researchers at the Institute of Basic Science in South Korea have developed a highly stretchable bioelectronic mesh patch which can monitor electrophysiological signals, such as heart muscle electrical activity, and can apply electrical and thermal stimulation for therapeutic purposes. The mesh can be implanted, such as around the heart, or can be worn on the … Continue reading