Wound

A wearable sensor for eye pressure sensing, a plastic scanner and new treatment solution for stab wounds have triumphed as global winners of the 2021 James Dyson Award, impressing judges as clever concepts designed to solve real-world problems.

Although silver is highly effective at killing bacteria, it can also be toxic to humans in large amounts. That's where a new wound dressing is intended to come in, as it only releases its silver payload when infections are present.

When removing the dressing to check on a chronic wound, you ironically often set back the healing process. A new type of "smart bandage" was designed with this problem in mind, as it transmits wound data to an app on a clinician's mobile device.

Chronic wounds such as skin ulcers can be difficult to treat, partially because of antibiotic-resistant "biofilms" that form over the affected tissue. A new type of microneedle patch, however, has been shown to deliver medication through such films.

Diabetic skin ulcers often take a long time to heal, sometimes even leading to complications that result in amputation. A new hydrogel is designed to help keep that from happening, by delivering oxygen directly to such wounds.

Bandaged wounds need to be checked for infection, yet removing the bandage to check the wound can delay its healing. Australian scientists may have a fix for this paradox, in the form of a dressing that glows if the wound is infected.

If you're trying to make a wound dressing that will be well-tolerated by the human body, you may be best off using human-derived materials. That's the approach that German researchers have taken, creating a tropoelastin-based bandage.

When it comes to closing incisions or other wounds in the digestive tract, sutures alone aren't enough to keep fluids or food waste from leaking out into the abdomen. A new hydrogel patch is designed to help, by thoroughly sealing such injuries up.

Although we've already heard how electrical stimulation can help speed the healing of wounds, electrical devices themselves often can't be implanted in soft tissue. That could soon change, though, thanks to the development of a "piezoelectric wafer."

A compelling new study is offering an insight into the mechanism by which a novel form of light therapy can speed the healing of burn injuries. The research indicates the experimental therapy can activate a key protein that stimulates cell growth.

Chronic wounds can be very difficult to treat, potentially leading to amputations or even death due to associated infections. A new dressing, however, may be able to heal such wounds while remaining much less expensive than other materials.

During surgery or traumatic injury, quickly stopping bleeding saves lives. Now, scientists have recruited an unlikely ally to that cause – snake venom, which forms the basis of a new “super glue” that halts bleeding in seconds after light activation.