DARPA invests $7.5 million into Profusa’s tiny tech-packed implantable biosensor

By Dave Palmer July 17, 2016

The Defense Advanced Research Projects Agency announced a project with the U.S. Army Research Office to develop tissue-integrated biosensor technology. Profusa, a San Francisco company, was awarded a $7.5 million grant from DARPA to lead the development.

The U.S. military is interested in developing the technology to aid in real-time monitoring of combat soldier health vitals. Profusa chairman and CEO Ben Hwang said, “Profusa’s vision is to replace a point-in-time chemistry panel that measures multiple biomarkers, such as oxygen, glucose, lactate, urea, and ions with a biosensor that provides a continuous stream of wireless data,” according to QMed.

Recommended Videos

The U.S. military hopes that this technology will improve mission efficiency and provide real-time information that allows soldiers to quickly address health issues that may affect the mission. Profusa’s bioengineering approach to an implantable biosensor allegedly overcomes the body’s natural reaction to reject foreign material. The sensors are made of a “smart hydrogel” similar to contact lens material.

Profusa implantable biosensor — Profusa implantable biosensor Profusa

The sensors are implanted approximately two to four millimeters below the surface of the skin, and are only three to five millimeters long. At 500 microns in diameter, the sensors are tiny, and packing that much tech into such a small package is an impressive feat. Each biosensor is a soft, flexible fiber that is designed to be compatible with body tissues for up to two years.

The sensor interfaces with an optical reader that communicates with a smartphone application to provide users with real-time information for actionable decisions. Data is also shared through digital networks that allow health care providers and public health analysts to perform long term studies with wide-ranging information.

Critics claim that this type of technology brings the government one step closer to implantable sensors that are capable of violating privacy. Profusa counters that the technology can be utilized in a civilian capacity to manage chronic diseases like diabetes.

Topics

Former Digital Trends Contributor

Dave’s technology geek-fest began with the classic Commodore 64 computer, which started a lifelong passion for all things…

Emerging Tech

Juiced Bikes sold at auction for $1.2 million, report says

The Juiced Bikes Scorpion X2 adds more power, upgraded tires, and an improved battery to the popular moped style e-bike.

Juiced Bikes, the San Diego-based maker of e-bikes, has been sold on an auction website for $1,225,000, according to a report from Electrek.Digital Trends recently reported how the company was showing signs of being on the brink of bankruptcy. The company and its executives had remained silent, while customer inquiries went unanswered and its website showed all products were out of stock. In addition, there were numerous reports of layoffs at the company.Yet, the most convincing sign was that the company’s assets appeared as listed for sale on an auction website used by companies that go out of business.Now, it appears that Juiced Bikes’ assets, including a dozen patents, multiple URLs, and the company’s inventory in both the U.S. and China, have been sold at auction, according to the report. It is likely that the buyer, who remains unknown, can capitalize on the brand and the overall value of the 15-year old company. Founded in 2009 by Tora Harris, a U.S. high-jump Olympian, Juiced Bikes was one of the early pioneers of the direct-to-consumer e-bike brands in the U.S. market.
The company had quickly built a reputation for the versatility of its e-bikes and the durability of their batteries. Over the years, the popularity of models such as the CrossCurrent, HyperScrambler, and RipCurrent only bolstered the brand’s status.Last year, Digital Trends named the Juiced Bikes Scorpion X2 as the best moped-style e-bike for 2023, citing its versatility, rich feature set, and performance.Juiced Bikes’ getting sold quickly might be a sign of what consulting firm Houlihan Lokey says is a recovery in the North American e-bike market.
The industry has had a roller-coaster ride during and after the COVID-19 pandemic: A huge spike in demand for e-bikes had combined with disrupted supply chains to create a supply/demand mismatch of “historic proportions," Houlihan Lokey said.

Cars

Rivian gets Knight Rider spooky for Halloween

Michael Knight sitting on the hood of his car KITT in a scene from Knight Rider.

Rivian vehicles are known for giving drivers the chance to take the party on the road, whether it’s stowing a travel kitchen onboard or using its elaborate software systems to spice things up.With Halloween just around the corner, the automaker based in Plymouth, Michigan, is pulling out some treats from its bag of tricks: Rivian owners are getting a number of options to turn their vehicles into traditional spooky or full-on sci-fi entertainment hubs.A software update available on the Rivian Mobile App until November 4 provides Car Costumes, which take over the vehicle’s screen, lighting, and sound systems while in park to transform it into three different cars.Nostalgic fans of the Knight Rider TV series will be pleased with the option to turn their Rivians into the famous K.I.T.T. crime-fighting car. After choosing the option on the app, the car’s interior display system features K.I.T.T.’s diagnostics on screen while playing the original show intro music. Here's an extra treat for Rivian Gen 2 owners: The exterior light bar will feature K.I.T.T.’s iconic beaming red light while playing its scanner sound effect.No-less nostalgic fans of Back to the Future movies will also get their treat with a chance to turn their vehicle into the DeLorean Time Machine. With this option, the screen turns into the classic time-traveling interface while the audio system plays the movie’s music and acceleration sound effects. Once again, Rivian Gen 2 owners get an extra treat. Hitting the key 88 mph button will engage the car’s lighting and sound effects in the front and back of the car to whizz you through the sound barrier.For a more traditional spooky time, you can opt for the Haunted Rivian car costume, featuring eight different sound effects and three different color themes. Static and ghosts will take over your interior display.Rivian Gen 1 owners get a green animation on the outside of the vehicle. Gen 2 owners can turn the exterior light bar into whichever color option they find most frightful.

Cars

The Nissan Rogue is joining the plug-in hybrid club in 2025

nissan rogue hybrid 2025 2024

It might have taken a while, and slumping sales of its most popular SUV, but Nissan has finally taken the step to offer hybrid vehicles in the U.S. The Japanese automaker will add a plug-in hybrid (PHEV) powertrain to the 2026 Rogue compact SUV, which should be available stateside sometime next year, Nissan Americas chief planning officer Ponz Pandikuthira told Automotive News.A plug-in hybrid electric vehicle (PHEV) typically runs on electric power until its battery is almost depleted, at which point it automatically switches over to using a gasoline-powered internal combustion engine. The battery can be recharged conventionally from the outside or through regenerative braking.
While Nissan has been offering popular fully electric vehicles (EVs) such as the Leaf and the Ariya for years, it has surprised many by not joining the hybrid bandwagon, especially for the Rogue. Competitors such as the Toyota RAV4 and the Honda CR-V, which do provide the part-fuel, part-electric power capacity, have seen their sales surging. Meanwhile, sales of the Rogue have slumped this year.
That’s why Nissan is partnering with Mitsubishi to start offering its first-ever electrically assisted car in the U.S. next year.
According to the Automotive News report, the Rogue will be outfitted with a similar powertrain found in the Mitsubishi Outlander. In that model, a 2.4-liter gas engine powers the front wheels, while two electric motors create an all-wheel drive system that can either work on its own or in conjunction with the gas engine. As the Outlander is able to deliver 248 horsepower, that would make the Rogue PHEV more powerful than the existing model’s 201 hp. The Outlander is also rated for 38 miles of electric driving by the EPA.
In addition, Nissan is planning to bring its non-plug-in, e-Power series hybrid technology to the U.S. in 2026. This technology, already available outside the U.S., also uses electric motors to power the wheels while using the gas engine to charge the battery.