New Wireless Smart Bandage Accelerates Chronic Wound Healing

Thanks to new research, this might not always be the case. A team of scientists at Stanford University has developed a wireless “smart bandage” that simultaneously monitors wound repair and helps to speed up healing. The bandage could shorten the time people suffer from chronic wounds while mitigating the physical damage and discomfort caused by conventional healing methods.

In a study published last week in Nature Biotechnology, the scientists describe a flexible, closed-loop device that seals wounds while transmitting valuable biodata to an individual’s smartphone. Hydrogel makes up the bandage’s base: While conventional bandages tug and tear at the skin when they’re pulled away, hydrogel allows the smart bandage to attach securely without causing secondary damage during removal. On top of the hydrogel sits the electronic layer responsible for wound observation and healing. At just 100 microns thick, this layer contains a microcontroller unit (MCU), electrical stimulator, radio antenna, memory, and a series of biosensors.

The biosensors look for two types of information: changes in electrical impedance and temperature fluctuations. Impedance is known to increase as wounds heal, while temperatures drop during wound resolution. Real-time insights regarding both of these indicators can inform the smart bandage’s repair-accelerating function, which utilizes electrical stimulation to encourage the activation of pro-regenerative genes. One of these genes, Apolipoprotein E, boosts muscle and soft tissue growth, while Selenoprotein P reduces inflammation while helping to clear out pathogens.

When tested on mice, the smart bandage’s stimulation indeed promoted the activation of both genes while increasing the number of white blood cells in each test subject. Mice that received treatment via smart bandage healed 25 percent faster than control mice. Treated mice also experienced a 50 percent enhancement in dermal remodeling, suggesting an improved quality of treatment and physical resolution.

As of now, the scientists’ smart bandage is just a prototype. The team hopes to scale the device’s size to fit humans while finding ways to reduce cost. There also might be a case for adding additional biosensors that track pH, metabolites, and other data. Still, the bandage presents a bit of hope for those who struggle to heal from persistent, life-disrupting wounds.

Continue reading

Apple Might Bring Wireless Charging to the Next iPad Pro

The next iPad Pro refresh could feature wireless charging and a glass back panel, says Bloomberg's Mark Gurman.

Google’s Project Taara Wirelessly Transmits 700TB Across a River in 20 Days

Google says it has used the Free Space Optical Communications (FSOC) links developed for Project Loon to beam hundreds of terabytes of data nearly five kilometers, no wires necessary.

Microsoft Surface Duo 2 Pops Up at FCC With 5G, NFC, and Wireless Charging

Microsoft has a Surface hardware event on the agenda for Wednesday (September 22), but an FCC filing might have just spilled the beans. The document reveals some notable details on the alleged Surface Duo 2, a follow-up to Microsoft's first Android phone in 2020.

Apple Reportedly Working on Long Distance Wireless and Reverse Charging Tech

Apple never did deliver its AirPower charging pad, but it could offer up something even better in the future.