On Halloween night in 2022, more than 100,000 people flooded the streets of Seoul, South Korea, to celebrate and participate in the city’s festivities. Thousands funneled into a 14-foot-wide alley in the Itaewon district from multiple directions.

The crowd grew so large that no one could move in the alley, resulting in the deadliest crowd crush in the nation’s history. Nearly 160 people were killed, and another 196 were injured.

Soonho Kwon, a first-year human-centered computing Ph.D. student at Georgia Tech, lived within walking distance of the alley when the incident occurred.

“It was tragic,” Kwon said. “It really makes you think about how life is fragile. Everyone in my community talked about what it would have been like if they were in that alleyway.”

Many of the victims were young people — some of them teens who had no identification on them. Kwon thought about their family members being told their loved ones’ lives had been cut short. He wondered what memories those families would have of the deceased.

The incident inspired Kwon to create a new mobile platform that helps young adults and career professionals create a post-death memorial for their families. The platform, which Kwon and his research collaborators named Timeless, allows users to be remembered how they want to be remembered in the event of their untimely death.

“Most death preparation services are for terminally ill patients or aging adults, focusing on will management or funeral planning,” Kwon said. “We thought such needs may differ for young adults and asked how we could design a system that better caters to their needs.”

Timeless is a photo-based death preparation system that enables users to send a physical package containing pre-curated pictures, voice recordings, and letters to a designated recipient in the event of their passing. 

The system syncs with a user’s mobile photo album and creates a list of scanned faces. Users can select a face and view all the photos they’ve taken with that person. They can choose which photos they want sent to that person after death and write individual messages for each image.

Once the user’s death has been reported, Timeless sends a package to each selected individual with printed photos, letters, and a QR code or a CD that contains videos or voice recordings.

Breaking the Ice

Kwon and his collaborators designed Timeless based on a group study that asked participants to imagine what would happen if they unexpectedly died. The participants were asked what was on their bucket lists, their epitaphs, and what they would wish for if they could make one wish come true.

“Surprisingly, people were happy to participate because we framed it in a way that wasn’t gloomy,” Kwon said. “Many shared that reflecting on their death motivated them to actively express their love and be grateful for what they have. Turning something as heavy as death into something positive was a key design implication.”

Digital vs. Physical

Kwon began his research career examining virtual commemoration systems, including Facebook and Instagram commemoration pages, during the Covid-19 pandemic and exploring how technology can meaningfully memorialize the deceased.

He said two aspects distinguish Timeless from other commemoration platforms: 

• The deceased can decide how and by whom they want to be remembered.
• The fusion of digital memorialization with physical memorialization

“Leveraging only the digital side of it can be superficial,” Kwon said. “We build monuments, statues, and tombstones because the notion of death itself is losing your physical presence. By making it physical, we aimed to connect the discussion on digital legacies to traditional human commemoration forms.”

AI Afterlife

Kwon also said he is aware of artificial intelligence (AI) afterlife. This emerging technology allows people to train an AI agent and produce digital avatars with which family and friends can communicate after they die.

Meredith Ringel Morris, director and principal scientist for human-AI interaction at Google DeepMind, spoke about AI afterlife in October during the Summit on AI, Responsible Computing, and Society hosted by Georgia Tech’s School of Interactive Computing.

In her talk, Morris spoke about the criticism AI afterlife is already facing for causing people to experience extended grief and the inability to move on from losing a loved one.

Kwon said another drawback is that AI agents are susceptible to hallucinations and could say untrue things about the deceased. 

“How can you say for sure that the representation of AI is me?” he said. “As researchers, our role is to explore and critically examine how the emergence of such technology may shape society while striving to ensure its development benefits people.” 

Kwon sees Timeless as a catalyst for meaningful discussions about how a digital legacy curation system may accurately reflect a user’s wishes before death. 

He will present a paper on Timeless's design process and its implications at the 2025 ACM Conference on Human Factors in Computing Systems (CHI) this week in Yokohama, Japan.

Jason Azoulay is an associate professor of Chemistry and Biochemistry and Materials Science and Engineering at Georgia Tech. He is the Georgia Research Alliance Vasser-Woolley Distinguished Investigator in Optoelectronics and serves as co-director of the Center for Organic Photonics and Electronics.

This story by Janette Neuwahl Tannen is shared jointly with the University of Miami newsroom. 

Today, most of us carry a fairly powerful computer in our hand — a smartphone.

But computers weren’t always so portable. Since the 1980s, they have become smaller, lighter, and better equipped to store and process vast troves of data.

Yet the silicon chips that power computers can only get so small.

“Over the past 50 years, the number of transistors we can put on a chip has doubled every two years,” says Kun Wang, assistant professor of physics at the University of Miami College of Arts and Sciences. “But we are rapidly reaching the physical limits for silicon-based electronics, and it’s more challenging to miniaturize electronic components using the technologies we have been using for half a century.”

It’s a problem that Wang and many in his field of molecular electronics are hoping to solve. Specifically, they are looking for a way to conduct electricity without using silicon or metal, which are used to create computer chips today. Using tiny molecular materials for functional components, like transistors, sensors, and interconnects in electronic chips offers several advantages, especially as traditional silicon-based technologies approach their physical and performance limits.

But finding the ideal chemical makeup for this molecule has stumped scientists. Recently, Wang, along with his graduate students, Mehrdad Shiri and Shaocheng Shen, and collaborators Jason Azoulay, associate professor at Georgia Institute of Technology and Georgia Research Alliance Vasser-Woolley Distinguished Investigator; and Ignacio Franco, professor at the University of Rochester, uncovered a promising solution.

This week, the team shared what they believe is the world’s most electrically conductive organic molecule. Their discovery, published in the Journal of the American Chemical Society, opens up new possibilities for constructing smaller, more powerful computing devices at the molecular scale. Even better, the molecule is composed of chemical elements found in nature — mostly carbon, sulfur, and nitrogen.

“So far, there is no molecular material that allows electrons to go across it without significant loss of conductivity,” Wang says. “This work is the first demonstration that organic molecules can allow electrons to migrate across it without any energy loss over several tens of nanometers.”

The testing and validation of their unique new molecule took more than two years.

However, the work of this team reveals that their molecules are stable under everyday ambient conditions and offer the highest possible electrical conductance at unparalleled lengths. Therefore, it could pave the way for classical computing devices to become smaller, more energy-efficient, as well as cost-efficient, Wang adds.

Currently, the ability of a molecule to conduct electrons decreases exponentially as the molecular size increases. These newly developed molecular “wires” are needed highways for information to be transferred, processed, and stored in future computing, Wang says.

“What’s unique in our molecular system is that electrons travel across the molecule like a bullet without energy loss, so it is theoretically the most efficient way of electron transport in any material system,” Wang notes. “Not only can it downsize future electronic devices, but its structure could also enable functions that were not even possible with silicon-based materials.”

Wang means that the molecule’s abilities might create new opportunities to revolutionize molecule-based quantum information science.

“The ultra-high electrical conductance observed in our molecules is a result of an intriguing interaction of electron spins at the two ends of the molecule,” he adds. “In the future, one could use this molecular system as a qubit, which is a fundamental unit for quantum computing.”

The team was able to notice these abilities by studying their new molecule under a scanning tunneling microscope (STM). Using a technique called STM break-junction, the team was able to capture a single molecule and measure its conductance.

Shiri, the graduate student, adds: “In terms of application, this molecule is a big leap toward real-world applications. Since it is chemically robust and air-stable, it could even be integrated with existing nanoelectronic components in a chip and work as an electronic wire or interconnects between chips.”

Beyond that, the materials needed to compose the molecule are inexpensive, and it can be created in a lab.

“This molecular system functions in a way that is not possible with current, conventional materials,” Wang says. “These are new properties that would not add to the cost but could make (computing devices) more powerful and energy efficient.” 

DOI: https://doi.org/10.1021/jacs.4c18150

Funding: U.S. Department of Energy, Office of Science, Basic Energy
Sciences; National Science Foundation (NSF); Air Force Office of Scientific Research (AFOSR) under support provided by the Organic Materials
Chemistry Program; Georgia Tech Research Institute (GTRI) Graduate
Student Researcher Fellowship Program (GSFP). Computational resources were provided by the Center for Integrated Research Computing (CIRC) at the
University of Rochester.

Along with Jason Azoulay, Georgia Tech co-authors also include Paramasivam Mahalingam, Tyler Bills, Alexander J. Bushnell, and Tanya A. Balandin.

More than 100 researchers, faculty, industry representatives, alumni, and students came together on April 14 to explore the future of space research and exploration at the 2025 Yuri's Day Symposium. Hosted by Georgia Tech’s Space Research Initiative (SRI), Yuri’s Day serves as an annual celebration of space research across the Institute, the state of Georgia, and beyond. It built on the success of Yuri’s Day 2024, and was designed to be interactive and drive participation through panel discussions, a poster session, and networking opportunities.

The day began with opening remarks from Georgia Tech’s Executive Vice President of Research Tim Lieuwen, Vice President of Interdisciplinary Research Julia Kubanek, and the SRI executive committee, comprised of Professor Glenn Lightsey and Associate Professors Mariel Borowitz and Jennifer Glass. They provided an update on the SRI's latest achievements and its elevation to the Space Research Institute, one of Georgia Tech’s Interdisciplinary Research Institutes, on July 1.

“Space research is much broader than building spacecraft…it includes science, policy, business, and culture. We are here to celebrate all aspects of space research at Georgia Tech,” said Lightsey.

Borowitz lead a panel discussion on the implications of current space policies and the role of academic institutions in shaping the future of space exploration. It highlighted the importance of policy decisions in advancing space research and ensuring sustainable development. Jonathan Goldman, director of Quadrant-i at Georgia Tech, and his panel of entrepreneurs then discussed the commercialization of space technologies and the opportunities arising. They shared how collaboration between academia and industry can drive innovation and bring these new technologies to market.

The Georgia Tech Research Institute (GTRI) organized a space poster session during the lunch break to provide insight into the various space research projects happening there. This networking opportunity highlighted the breadth of work at GTRI and enabled researchers and students to present their projects to attendees. 

The Keynote speaker, Georgia Tech Alumnus Griff Russell, M.S. ME 1999, president of Gryphon Effect, LLC, and former SpaceX F9 vehicle manager, shared his personal journey to inspire future researchers. His talk, “From a letter to an astronaut to the trenches of Falcon 9 and beyond: Setting the foundation for accelerated Moon to Mars exploration” followed Russell’s path to the space industry, chronicling a letter he wrote to an astronaut early in his career to his current role as an entrepreneur. Russell shared his thoughts on the future of space exploration and encouraged students in the room to move fast and develop innovative new space technologies. “The time is now for you to make a difference,” he said. 

Professor Thom Orlando then led a panel of experts from other Georgia universities on the Human Space Initiative in the State of Georgia. Orlando and the panelists discussed the state's contributions to human spaceflight and the potential for future missions. This was followed by a panel on Earth analog field studies led by Assistant Professor Frances Rivera-Hernandez. Panelists including students explained how studying Earth analogs, like lava tubes and deserts, can help researchers better understand other planetary environments. Georgia Tech graduate students gave brief presentations chronicling recent fieldtrips and the data they gather in the field. The final session of the day led by Professor Lightsey showcased Georgia Tech’s space-related student organizations and the importance of engaging the next generation of scientists and engineers in space exploration.

As the Space Research Initiative transitions into the Space Research Institute, Georgia Tech is prepared to lead groundbreaking research, and Yuri’s Day gave attendees a preview of things to come. For more information about the SRI and the research at Georgia Tech, visit our website.

Early on, Georgia Tech graduate students William Trenton Gantt and Hugh (Ka Yui) Chen imagined working in the space industry.

“When I was 14, I dreamed about being in space one day,” recalls Chen, 22, a native of Hong Kong and a Ph.D. student in aerospace engineering. “I think the industry has been making space more accessible to everyone. Commercialization is a big part of enabling this.”

Gantt, an engineer and former U.S. Army veteran graduating with an MBA from the Scheller College of Business this spring, remembered seeing the space shuttle retire and companies begin privatizing space as he entered young adulthood. 

“I’ve always been interested in space, and a lot of it comes from the challenge of going to space,” he observes. “Seeing how hard it is to get to space and seeing it become achievable — that to me was the most attractive thing about it.”

For Gantt, the feeling always brings to mind John F. Kennedy’s famous line that spelled out America’s space ambitions: “We choose to go to the moon in this decade and do the other things, not because they are easy, but because they are hard.”

Recognizing Georgia Tech’s aerospace strengths, Gantt didn’t waste time building bridges within Scheller and in other parts of Georgia Tech. He founded the Scheller MBA Space Club, a first at the College, to track the industry as it grows and develops. 

“I came from a military background, so I had my eye on the defense industry going into the MBA program. Georgia Tech, being the No. 2 aerospace engineering undergraduate school in the nation, I knew they already had strong industry connections. Making connections was a big goal coming into this program.”

Assessing Early-Stage Space Tech 

He took part in the Entrepreneurship Assistants Program (EAP), which pairs a Scheller MBA student with a faculty or student inventor to evaluate early-stage technology for potential commercialization. He evaluated two space-related technologies, one with Chen’s support. 

“The EAs conduct technology commercialization assessments and develop a business model canvas. By applying an entrepreneurial strategy compass, they predict potential go-to-market strategies for new technology,” says Paul Joseph, principal in the Office of Commercialization’s Quadrant-i unit, who created the EAP.

Tapping Into a Nearly $2T Industry

According to McKinsey & Co., the space technology market, fueled by advancements in satellite technology, commercial space travel, and 5G networks, is projected to reach $1.8 trillion by 2035.

“We're seeing an industry shifting from a multibillion-dollar market cap to a multitrillion-dollar market cap in less than a decade. If you look at this from a business perspective, this is a massive addressable market for entrepreneurs," says Gantt.

From its Center for Space Technology and Research to the new Center for Space Policy and International Relations and labs like the Space Systems Design Lab, which focuses on areas such as CubeSat propulsion, lunar research, and hypersonic flight, Georgia Tech excels in space research across disciplines. In July, Georgia Tech will launch the Space Research Institute (SRI), one of its newest Interdisciplinary Research Institutes (IRI), to foster additional collaboration in this growing field.

“At Georgia Tech, there are competencies across every single College that will help to augment our understanding of space,” says Alex Oettl, professor of strategy and innovation in Scheller College, whose interest in the new space economy spans the last 20 years. “When you look at the technologies coming from Georgia Tech, they can impact this future trillion-dollar industry.”

 An economist by training, Oettl led Georgia Tech’s involvement in the Creative Destruction Lab-Atlanta, a multi-university program that helped commercialize early-stage scientific technologies.

Leveraging Affordable Launch

The emergence of affordable launch, spurred by SpaceX’s introduction of the Falcon 9 rocket using reusable rocket technology, has made space much more accessible, from biomedical companies to academic institutions.

“Because there has been a drop in the cost of accessing space, it allows experimentation to flourish,” says Oettl. 

He recalls Mark Costello, former chair of the Daniel Guggenheim School of Aerospace Engineering, explaining how he could launch a CubeSat into Low Earth Orbit out of his research budget, whereas before it would have been cost-prohibitive.

Today, Georgia Tech students and researchers are poised to capitalize on the new space economy stack — from new launch capabilities to new development in propellants and in-space operations and maintenance to more powerful sensors on Earth-observation satellites.

“I’ve seen firsthand the traction occurring on the commercial side. There are a lot of social scientists waking up to the opportunity that exists and thinking about business dynamics that will emerge as a result of this great opportunity,” he says.

Georgia Tech, an interdisciplinary, tech-focused university, brings significant capabilities across its Colleges to drive new and emerging technologies that have implications for space. 

“Space hits on all the strengths that exist at the various Colleges,” Oettl explains. “Faculty at Georgia Tech are pushing the boundary and showing our students innovations that will emerge in the space economy that are not immediately obvious — such as in adjacent industries.”

Oettl calls these first-order and spillover impacts of new technology. By first-order impacts, he means businesses can take advantage of these opportunities and create new products on top of the original innovation. By spillovers, he cites as an example an Earth-observation satellite enabling other industries to take advantage of data from the ground. For instance, insurance companies are one of the largest users of space technology by way of satellite imagery.

Bringing Capabilities Together Through New Space IRI

The SRI will bring together the best in engineering, computer science, policy, and business research across Georgia Tech. Along the way, it could help engineers and computer scientists think with a more business-minded approach to pitch their innovations to the commercial space sector. 

“You don’t see a lot of engineers having that inherent ability,” notes Gantt. “The Space IRI can shine by fostering collaboration between business students and engineers, enabling them to develop innovative go-to-market strategies and clearly define the unique value propositions these technologies offer to end users. You can bring these people together and create some forward momentum in the space industry.”

The Georgia Institute of Technology and Stryten Energy LLC, a U.S.-based energy storage solutions provider, announced the successful installation of Stryten Energy’s Lead Battery Energy Storage System (BESS) at the Carbon Neutral Energy Solutions Laboratory (CNES). The CNES building, located in the North Avenue Research Area of the Georgia Tech campus, houses the Strategic Energy Institute (SEI), an interdisciplinary research institute focused on energy research, and multiple research groups dedicated to renewable energy and energy infrastructure-related topics.

The installation aims to create a living-learning lab on campus that supports research and real-world applications of medium-duration energy storage solutions. Lead BESS was selected for this initial installation due to its cost-effectiveness, high discharge rates, and recyclability, backed by extensive research demonstrating its reliable performance. The BESS is a dynamic storage system that integrates renewable energy sources into the existing power mix, providing stable and dependable backup power and reducing grid dependency during peak hours. With its additional components and software, the system is capable of bi-directional charging, allowing current to flow into the battery for charging and out of the battery to power the grid or microgrid.

“Georgia Tech's strategic plan envisions our campus as a dynamic laboratory and experimental test bed, where sustainable practices are seamlessly integrated into our operations,” said Christine Conwell, SEI’s interim executive director. “Through enduring partnerships with organizations like Stryten, we are creating mini ecosystems that yield valuable situational data to help chart a path for innovative energy research well beyond the campus.” 

“As solar and other renewables hit the market years ago, large utility-scale implementations were clearly the focus,” said Scott Childers, vice president of essential power at Stryten Energy. “With the introduction of this BESS powered by lead batteries, we see behind-the-meter applications getting their day in the sun. We are particularly excited about deploying this unit in commercial and industrial microgrids and paired with EV charging stations to help the U.S. achieve its energy goals. Georgia Tech has been a tremendous partner, and we are excited about demonstrating the advantages of lead BESS from cost savings, technology, environmental, and safety perspectives.”

Richard Simmons, SEI’s director of research and studies, called the Stryten lead BESS system an enabling piece of the Distributed Energy Resources (DER) puzzle. At the CNES lab, Georgia Tech researchers can now control charging and discharging cycles for the battery in coordination with the existing Solar PV array and the new EV charging test bed. This research tool will allow the time-shifting of peak solar input by several hours to meet late afternoon building loads and store renewable energy for the overnight charging of campus vehicles. 

The role of DERs in the broader energy landscape is a crucial area of research, particularly understanding their impact on the grid, their contribution to system reliability, and their effect on energy costs. This research is especially important in the context of the ongoing transition to clean energy.

“It is our hope that the lead BESS will be one of several living lab battery pilots at Georgia Tech,” Simmons said. “Along with regional partners, our researchers are exploring similar R&D and testing projects involving flow batteries that can facilitate longer-duration storage, as well as lithium-ion BESS that may integrate second-life EV battery modules for grid resilience, driving advancements in sustainable energy research.” 

About Energy Research at Georgia Tech 
The Georgia Institute of Technology is one of the top public research universities in the U.S., developing leaders who advance technology and improve the human condition. Georgia Tech’s leading researchers work across the energy value chain in basic and applied science in EVs, photovoltaics, hydrogen, carbon capture, industrial decarbonization, grid security and resilience, and related social sciences. Georgia Tech is consistently ranked among the top universities in the nation for graduating underrepresented minorities in engineering, physical sciences, and energy-related fields. Most recently, U.S. News & World Report ranked Georgia Tech as the No. 1 public university and No. 3 overall in energy and fuels research. Serving as a regional resource to help communities understand how they can transition to a clean energy economy, Georgia Tech is the leader in achieving regional impact through education and contributions to communities.  

About Stryten Energy
Stryten Energy helps solve the world’s most pressing energy challenges with a broad range of energy storage solutions across the essential power, motive power, transportation, military, and government sectors. Headquartered in Alpharetta, Georgia, they partner with some of the world’s most recognized companies to meet the growing demand for reliable and sustainable energy storage capacity. Stryten powers everything from submarines to subcompacts, microgrids, warehouses, distribution centers, cars, trains, and trucks. Their stored energy technologies include advanced lead, lithium, and vanadium redox flow batteries, intelligent chargers, and energy performance management software that keep people on the move and supply chains running. An industry leader backed by more than a century of expertise, Stryten has The Energy to Challenge the status quo and deliver top-performing energy solutions for today and tomorrow. 

The most recent cohort of the Microelectronics and Nanomanufacturing Certificate Program (MNCP) have completed their training and are ready to dive into the workforce. 

The MNCP is a National Science Foundation (NSF) funded collaboration between the Institute for Matter and Systems (IMS), Georgia Piedmont Technical College (GPTC) and Pennsylvania State University’s Center for Nanotechnology Education and Utilization. 

The spring 2025 cohort was comprised of three individuals with non-technical backgrounds. For 12 weeks, they split time between online lectures and hands-on training in the Georgia Tech Fabrication Cleanroom where they immersed themselves in advanced microelectronic fabrication techniques. Their training included thin film deposition, photolithography, etching, metrology, laser micro-machining, and additive manufacturing. They gained hands-on experience with industry-standard equipment, even creating their own custom designs on 4-inch silicon wafers.

“The program really helps people get their head start, especially for those who don’t really have the educational background,” said Lauren Walker, one student from the cohort. Walker applied for the program after hearing about it from a colleague and was able to get a job as a laboratory technician with help from the program resources.

“[The program] gave me everything I needed to know for new skills and things like that for the industry,” said Walker. “It helped me eventually get another job. I say it helped because of the workshops they had.”

Under the direction of Seung-Joon Paik, IMS teaching lab coordinator, the cohort spent two days a week in the IMS cleanroom working on research projects with IMS staff. Michelle Wu, a research scientist in IMS, served as lab instructor throughout the program and oversaw the training on cleanroom tools. 

“As their lab instructor, I’ve been thoroughly impressed with their passion, patience, and unwavering dedication to this program,” said Wu.

The program is supported by the Advanced Technological Education program at the National Science Foundation and is free for all participants. 

Learn more about the Microelectronics and Nanomanufacturing Certificate Program

More than 300 people from industry, government, and academia converged on Georgia Tech’s campus for Energy Day. They gathered for discussion and collaboration on the topics of energy storage, solar energy conversion, and developments in carbon-neutral fuels.

Taking place on April 23, Energy Day was cohosted by Georgia Tech’s Institute for Matter and Systems (IMS), Strategic Energy Institute (SEI), the Georgia Tech Advanced Battery Center, and the Energy Policy and Innovation Center.

“The ideas coming out of Georgia Tech and other research universities can drive greater partnerships with our local and state officials. Whether you live in Georgia or elsewhere, we are changing how energy is viewed and consumed,” said Tim Lieuwen, Georgia Tech executive vice president for Research.

Energy Day 2025 is the latest evolution in a series of events that began as in 2023 Battery Day. As local and national energy research needs have evolved, the event has grown to highlight Georgia Tech, and the state of Georgia, as a go-to location for modern energy companies.

“At Georgia Tech, we approach energy holistically, leveraging innovative R&D, economic policy, community-building and strategic partnerships,” said Christine Conwell, SEI's interim executive director. “We are thrilled to convene this event for the third year. The keynote and sessions highlight our comprehensive strategy, showcasing cutting-edge advancements and collaborative efforts driving the next big energy innovations." 

The day was divided into two parts: a morning session that included a keynote speaker and two panels, and an afternoon session with separate tracks addressing three different energy research areas. Speakers shared research being conducted at Georgia Tech, as well as updates from industry leaders, to create an open dialogue about current energy needs.

“We believe we can solve problems and build the economy when you bring various disciplines together and work from matter — the fundamental scientists and devices all the way out to final systems at large — economic systems, societal systems,” said Eric Vogel, executive director for IMS. “Not only did we share the latest research, but we discussed and debated how we can continue to transform the energy economy.”

Discussions ranged from adapting to rapid changes in battery storage to advancing photo-voltaic manufacturing in the U.S. to the environmental impacts and sustainable practices of e-fuels and renewable energy.

The day ended with a robust poster session that attracted more than 25 student posters presentations. Three were awarded best posters.

First place: Austin Shoemaker
Second Place: Roahan Zhang
Third Place: Connor Davel

Related Links:
Advancing Clean Energy: Georgia Tech Hosts Energy Materials Day
Georgia Tech Battery Day Reveals Opportunities in Energy Storage Research

Origami — the Japanese art of folding paper — could be at the next frontier in innovative materials.

Practiced in Japan since the early 1600s, origami involves combining simple folding techniques to create intricate designs. Now, Georgia Tech researchers are leveraging the technique as the foundation for next-generation materials that can both act as a solid and predictably deform, “folding” under the right forces. The research could lead to innovations in everything from heart stents to airplane wings and running shoes.

Recently published in Nature Communications, the study, “Coarse-grained fundamental forms for characterizing isometries of trapezoid-based origami metamaterials,” was led by first author James McInerney, who is now a NRC Research Associate at the Air Force Research Laboratory. McInerney, who completed the research while a postdoctoral student at the University of Michigan, was previously a doctoral student at Georgia Tech in the group of study co-author Zeb Rocklin. The team also includes researchers from Princeton University, University of Michigan, and University of Trento.

“Origami has received a lot of attention over the past decade due to its ability to deploy or transform structures,” McInerney says. “Our team wondered how different types of folds could be used to control how a material deforms when different forces and pressures are applied to it” — like a creased piece of cardboard folding more predictably than one that might crumple without any creases.

The applications of that type of control are vast. “There are a variety of scenarios ranging from the design of buildings, aircraft, and naval vessels to the packaging and shipping of goods where there tends to be a trade-off between enhancing the load-bearing capabilities and increasing the total weight,” McInerney explains. “Our end goal is to enhance load-bearing designs by adding origami-inspired creases — without adding weight.”

The challenge, Rocklin adds, is using physics to find a way to predictably model what creases to use and when to achieve the best results.

Deformable solids

Rocklin, a theoretical physicist and associate professor in the School of Physics at Georgia Tech, emphasizes the complex nature of these types of materials. “If I tug on either end of a sheet of paper, it's solid — it doesn’t separate,” he explains. “But it's also flexible — it can crumple and wave depending on how I move it. That’s a very different behavior than what we might see in a conventional solid, and a very useful one.”

But while flexible solids are uniquely useful, they are also very hard to characterize, he says. “With these materials, it is often difficult to predict what is going to happen — how the material will deform under pressure because they can deform in many different ways. Conventional physics techniques can't solve this type of problem, which is why we're still coming up with new ways to characterize structures in the 21st century.”

When considering origami-inspired materials, physicists start with a flat sheet that's carefully creased to create a specific three-dimensional shape; these folds determine how the material behaves. But the method is limited: only parallelogram-based origami folding, which uses shapes like squares and rectangles, had previously been modeled, allowing for limited types of deformation.

“Our goal was to expand on this research to include trapezoid faces,” McInerney says. Parallelograms have two sets of parallel sides, but trapezoids only need to have one set of parallel sides. Introducing these more variable shapes makes this type of creasing more difficult to model, but potentially more versatile.

Breathing and shearing

“From our models and physical tests, we found that trapezoid faces have an entirely different class of responses,” McInerney shares. In other words — using trapezoids leads to new behavior.

The designs had the ability to change their shape in two distinct ways: "breathing" by expanding and contracting evenly, and “shearing" by deforming in a twisting motion. “We learned that we can use trapezoid faces in origami to constrain the system from bending in certain directions, which provides different functionality than parallelogram faces,” McInerney adds. 

Surprisingly, the team also found that some of the behavior in parallelogram-based origami carried over to their trapezoidal origami, hinting at some features that might be universal across designs.

“While our research is theoretical, these insights could give us more opportunities for how we might deploy these structures and use them,” Rocklin shares.

Future folding

“We still have a lot of work to do,” McInerney says, sharing that there are two separate avenues of research to pursue. “The first is moving from trapezoids to more general quadrilateral faces, and trying to develop an effective model of the material behavior — similar to the way this study moved from parallelograms to trapezoids.” Those new models could help predict how creased materials might deform under different circumstances, and help researchers compare those results to sheets without any creases at all. “This will essentially let us assess the improvement our designs provide,” he explains.

“The second avenue is to start thinking deeply about how our designs might integrate into a real system,” McInerney continues. “That requires understanding where our models start to break down, whether it is due to the loading conditions or the fabrication process, as well as establishing effective manufacturing and testing protocols.”

“It’s a very challenging problem, but biology and nature are full of smart solids — including our own bodies — that deform in specific, useful ways when needed,” Rocklin says. “That’s what we’re trying to replicate with origami.”

This research was funded by the Office of Naval Research, European Union, Army Research Office, and National Science Foundation.

DOI: https://doi.org/10.1038/s41467-025-57089-x