3d-printed organs

Houston researchers are commercializing their human tissue-printing technology

Houston researchers are commercializing their organ 3D printing technology. Jordan Miller/Rice University

There may come a time when you or someone you love is in need of a new pair of lungs. Or perhaps it's a liver. It's not a scenario anyone dreams of, but thanks to Houston company Volumetric, you may never end up on a waiting list. Instead, that organ is made to order and 3D printed using a mix of medical plastics and human cells.

And this possibility isn't necessarily in the distant future. On the cover of the May 3 issue of the journal Science, is a contraption that looks a bit like a futuristic beehive. It's a working air sac complete with blood vessels, the beginnings of a technology that is perhaps only a decade from being implanted in humans. And it was crafted on a 3D printer in Jordan Miller's lab at Rice University.

Yes, there are shades of another Houston story — Denton Cooley's implantation of the first artificial heart — but Cooley only inserted the organ. Miller and his bioengineering graduate student Bagrat Grigoryan are primed to profit from their inventions.

In 2018, they started Volumetric Inc., a company that sells both the hydrogel solutions used for printing organs like theirs and the printers themselves. Touring Miller's lab in the Houston Medical Center is a visual timeline of his team's progress designing printers. The version being manufactured is a slick little number, small enough to fit under chemical exhaust hoods, but fitted with everything necessary to print living tissues. It's made and sold in cooperation with CellInk, a larger bioprinting company.

"Our technology is based on projection," Miller explains. Specifically, it's stereolithography, a type of 3D printing that produces the finished product layer-by-layer. Shining colored light of the right intensity turns the polymers into a solid gel.

But why start a company when Miller and Grigoryan are already busy with research?

"If we want to do translational research, commercialization is important," reasons Miller. "We need to build the market to get that technology into the world."

Miller explains that usually the inventor of a technology is the best one to bring it to market.

"When we were building this technology in the lab we saw the potential for commercialization," he recalls. "We do see that this technology is highly scalable. We do think it can have a positive impact on tissue models in a lab."

Those tissue models could one day make not just scientists, but also animal rights activists, very happy. With the technology that Volumetric is developing, scientists could eventually print human cells so well that animal models would be far less accurate in predicting the success that the product being tested would have on humans.

As academics, though, Miller and Grigoryan weren't sure how to start a company. Fortunately, there is the National Science Foundation (NSF) and its I-Corps program. The pair spent a couple of weeks doing a regional program that taught scientists how to commercialize their technology.

"They want to see funded research get out of the lab," Miller says, explaining that they moved on to the national I-Corps program while Miller was on sabbatical from teaching at Rice, allowing them to interview potential customers.

This gave them the confidence to launch last year. Grigoryan now works full-time at the Med Center incubator and accelerator, Johnson & Johnson's JLabs. He has a team of two other scientists on staff.

"It would have been a lot harder to get started if we didn't have a space like JLabs available," Miller says. It also helps, he adds, that JLabs takes no equity, only helping the fledgling brand to finalize its market and get hooked in with potential investors.

Volumetric has its demo units ready to go and expects to start shipping printers in late June, pending final certifications.

"We believe we have technology to make organ replacements for people," Miller says.

And someday soon, long waits for a new set of lungs and a life of antirejection drugs could be a thing of the past.


Rice University bioengineers (from left) Bagrat Grigoryan, Jordan Miller and Daniel Sazer and collaborators created a breakthrough bioprinting technique that could speed development of technology for 3D printing replacement organs and tissues. Photo by Jeff Fitlow/Rice University

The Center for Innovation at Houston Methodist has opened its new Technology Hub to showcase its efforts to advance digital health. Natalie Harms/InnovationMap

Houston Methodist is regularly exploring new digital health technologies, but, until recently, lacked a proper space to demonstrate their vision for the future of health care. Now, with the Center for Innovation's Technology Hub, the hospital has just that.

The tech hub opened earlier this month in Houston Methodist Hospital in the Texas Medical Center. The 3,500-square-foot tech testing ground was renovated from an 18-room patient wing and showcases new digital health technologies like virtual reality, ambient listening, wearables, voice control, and more.

"Basically this space is like a laboratory for digital health innovations," says Josh Sol, administrative director of Innovation and Ambulatory Clinical Systems at Houston Methodist. "It's an opportunity to bring doctors, administrators, and subject matter experts to talk through what digital health could be at Houston Methodist."

The tech hub has re-imagined the experiences patients have and demonstrated the effect technology can have in various experiences — from the waiting room or outpatient care to at-home health and a voice control-optimized patient room. There's a virtual reality demo room that showcases the hospital's use of VR for distraction therapy, as well as for a doctor to demonstrate a surgical procedure for his or her patient.

"Part of this space is to change culture within the organization to promote this type of technology and really grow it because we think we can have some really positive impacts with our patients with these collaboration tools.

The space also features coworking space for industry experts — like Amazon or Microsoft — to come in to co-create, Sol says. Houston Methodist was also the first hospital in Houston to sign up for Apple Health's beta program.

Tours are open to industry professionals, vendors, and staff.

"We're excited for what the future can bring with this space," Sol tells InnovationMap.

Click through the slideshow to see some of the tech hub's rooms and the technology featured.

An interactive space

Natalie Harms/InnovationMap

The purpose of the new tech hub is to allow visitors to interact with technology Houston Methodist is exploring, as well as to tell the story of the hospital's innovations and its patients. The screen upon entry to the hub is one of the only 8K touch-screen monitors and allows a viewer to tap through to see a layout of the hub as well as to hear a story of one of Methodist's patients.