This week, Professor Joel Kostka was awar­ded the pres­ti­gi­ous Humboldt Research Award by the Al­ex­an­der von Hum­boldt Found­a­tion during its annual meeting and reception with Germany’s Federal President Steinmeier in Berlin. Every year, the Foundation grants up to 100 Humboldt Research Awards worldwide, which recognize internationally leading researchers of all disciplines.

The award’s €80,000 endowment will support a research trip to Germany for up to a year — during which Kostka will collaborate with Professor Mar­cel Kuypers, director of the Max Planck In­sti­tute for Mar­ine Mi­cro­bi­o­logy in Bre­men, Germany — to as­sess the role of mar­ine plant mi­cro­bi­o­mes in coastal mar­ine eco­sys­tem health and climate re­si­li­ence.

Kostka, who holds joint appointments in the School of Bio­lo­gical Sci­ences and School of Earth and Atmospheric Sciences, is also the as­so­ci­ate chair for re­search in Bio­lo­gical Sci­ences. He was ​​recently named the inaugural faculty director of Georgia Tech for Georgia's Tomorrow. The new Center, announced by the College of Sciences in December 2024, will drive research aimed at improving life across the state of Georgia. 

Wetlands in a changing climate

“Human population is centered on coastlines, and coastal ecosystems provide many services for people,” Kostka says. “Although they cover less than 1 percent of the ocean, coastal wetlands store over 50 percent of the seafloor’s rich carbon reserves.” But researchers aren’t sure how these ecosystems will respond to a changing climate.

Microbes may be the key. Microbes play a critical role in maintaining plant health and helping them adapt to stressors, Kostka says. Similar to human bodies, plants have microbiomes: a community of microbes intimately associated with the plant that help it take up nutrients, stimulate the plant’s immune system, and regulate plant hormones. 

“Our research indicates that plant microbiomes are fundamental to wetland ecosystem health, yet almost everything we know about them is from agricultural systems,” he adds. “We know very little about the microbes associated with these important marine plants that dominate coastal ecosystems.”

Kostka’s work in Germany will investigate how microbiomes help coastal marine plants adapt to stress and keep them healthy. From there, he will investigate how plant microbiomes contribute to the carbon and nutrient cycles of coastal ecosystems — and how they contribute to ecosystem resilience.

Expanding collaboration — and insights 

One goal of the collaboration is to exchange information on two types of marine plants that dominate coastal ecosystems worldwide: those associated with seagrass meadows and salt marshes.

“I’ve investigated salt marsh plants in the intertidal zone between tides, and my colleagues at the Max Planck Institute have focused on seagrass beds and seagrass meadows, which are subtidal, below the tides,” Kostka says. “While these two ecosystems have some different characteristics, they both cover large areas of the global coastline and are dominated by salt-tolerant plants.” 

In salt marshes, Kostka has shown that marine plants have symbiotic microbes in their roots that help them to take up nitrogen and deal with stress by removing toxic sulfides. He suspects that these plant-microbe interactions are critical to the resilience of coastal ecosystems. “The Max Planck Institute made similar observations in seagrass meadows as we did in salt marshes,” Kostka explains. “But they found different bacteria.”

From Georgia to Germany

Beyond supporting excellence in research, another key goal of the Humboldt Research Award is to support international collaboration — something very familiar to Kostka. “I've been working with Professor Kuypers and the Max Planck Institute in Bremen for many years,” he says, adding that he completed his postdoctoral research at the Institute. “Max Planck's labs are some of the best in the world for what they do, and their imaging technology can give us an unprecedented look at plant-microbe interactions at the cellular level.”

“This project is also special because I am collaborating with other scientists in northern Germany,” Kostka adds. “The University of Bremen is home to the Cen­ter for Mar­ine En­vir­on­mental Sci­ences (MARUM), which is designated as a Cluster of Excellence by the German National Science Foundation, so there are a number of fantastic research centers in Bremen to work with.”

His hope is that this project will deepen collaboration between the research at Georgia Tech and research in Germany. “I look forward to seeing what we can uncover about these critical systems while working together.”

 

Researchers at Georgia Tech have taken a critical step forward in creating efficient, useful and brain-like artificial intelligence (AI). The key? A new algorithm that results in neural networks with internal structure more like the human brain.

The study, “TopoNets: High-Performing Vision and Language Models With Brain-Like Topography,” was awarded a spotlight at this year’s International Conference on Learning Representations (ICLR), a distinction given to only 2 percent of papers. The research was led by graduate student Mayukh Deb alongside School of Psychology Assistant Professor Apurva Ratan Murty.

Thirty-two of Tech’s computing, engineering, and science faculty represented the Institute at ICLR 2025, which is globally renowned for sharing cutting-edge research. 

“We started with this idea because we saw that AI models are unstructured, while brains are exquisitely organized,” says first-author Deb. “Our models with internal structure showed more than a 20 percent boost in efficiency with almost no performance losses. And this is out-of-the-box — it’s broadly applicable to other models with no extra fine-tuning needed.”

For Murty, the research also underscores the importance of a rapidly growing field of research at the intersection of neuroscience and AI. “There's a major explosion in understanding intelligence right now,” he says. “The neuro-AI approach is exciting because it helps emulate human intelligence in machines, making AI more interpretable.”

“In addition to advancing AI, this type of research also benefits neuroscience because it informs a fundamental question: Why is our brain organized the way it is?,” Deb adds. “Making AI more interpretable helps everyone.”

Brain-inspired blueprints

In the brain, neurons form topographic maps: neurons used for comparable tasks are closer together. The researchers applied this concept to AI by organizing how internal components (like artificial neurons) connect and process information. 

This type of organization has been tried in the past but has been challenging, Murty says. “Historically, rules constraining how the AI could structure itself often resulted in lower-performing models. We realized that for this type of biophysical constraint, you simply can’t map everything — you need an algorithmic solution.”

“Our key insight was an algorithmic trick that gives the same structure as brains without enforcing things that models don't respond well to,” he adds. “That breakthrough was what Mayukh (Deb) worked on.” 

The algorithm, called TopoLoss, uses a loss function to encourage brain-like organization in artificial neural networks, and it is compatible with many AI systems capable of understanding language and images. 

“The resulting training method, TopoNets, is very flexible and broadly applicable,” Murty says. “You can apply it to contemporary models very easily, which is a critical advancement when compared to previous methods.” 

Neuro-AI innovations

Murty and Deb plan to continue refining and designing brain-inspired AI systems. “All parts of the brain have some organization — we want to expand into other domains,” Deb says. “On the neuroscience side of things, we want to discover new kinds of organization in brains using these topographic systems.”

Deb also cites possibilities in robotics, especially in situations like space exploration where resources are limited. “Imagine running a model inside a robot with limited power,” he says. “Structured models can help us achieve 80 percent of performance with just 20 percent of energy consumption, saving valuable energy and space. This is still experimental, but it's the direction we are interested in exploring.”

“This success highlights the potential of a new approach, designing systems that benefit both neuroscience and AI — and beyond,” Murty adds. “We can learn so much from the human brain, and this project shows that brain-inspired systems can help current AI be better. We hope our work stimulates this conversation.”

A longstanding mystery of the periodic table involves a group of unique elements called lanthanides. Also known as rare earth elements, or REEs, these silvery-white metals are challenging to isolate, given their very similar chemical and physical properties. This similarity makes it difficult to distinguish REEs from one other during extraction and purification processes. 

The world has come to depend on lanthanides’ magnetic and optical properties to drive much of modern technology — from medical imaging to missiles to smart phones. These metals also are in short supply, and because they’re found in minerals, lanthanides are difficult to mine and separate.   But that may change — thanks to a Georgia Tech-led discovery of a new oxidation state for a lanthanide element known as praseodymium.  

For the first time ever, praseodymium achieved a 5+ oxidation state. Oxidation occurs when a substance meets oxygen or another oxidizing substance. (The browning on the flesh of a cut apple, as well as rust on metal, are examples of oxidation.)
   
As far back as the 1890s, scientists suspected lanthanides might have a 5+ oxidation state, but  lanthanides in that state were too unstable to see, said Henry ”Pete“ La Pierre, an associate professor in Georgia Tech’s School of Chemistry and Biochemistry. Discovering an element’s new oxidation state is like discovering a new element. As an example, La Pierre noted how plutonium’s discovery opened up a whole new area of the periodic table. 

“A new oxidation state tells us what we don’t know and gives us ideas for where to go,” he explained. “Each oxidation state of an element has distinct chemical and physical properties — so the first glimpse of a novel oxidation presents a roadmap for new possibilities.”
 
La Pierre and colleagues at University of Iowa and Washington State University recently discovered the 5+ oxidation state for lanthanides. 

“It was predicted but never seen until we found it,” said La Pierre, corresponding author of the study, “Praseodymium in the Formal +5 Oxidation State,” which was recently published in Nature Chemistry. “Lanthanides’ properties are really fantastic. We only use them commercially in one oxidation state — the 3+ oxidation state — which defines a set of magnetic and optical properties. If you can stabilize a higher oxidation state, it could lead to entirely new magnetic and optical properties.”
 
The researchers’ breakthrough will broaden the lanthanides’ technical applications in fields such as rare-earth mining and quantum technology and could lead to new electronic device architectures and applications. 

“Research in lanthanides has already yielded significant dividends for society in terms of technological development,” La Pierre added.
    
The researchers hope to discover new tools for mining critical REEs, including improving lanthanide separation and recycling processes. When mining these elements, lanthanide elements are frequently mixed together. The separation process is painstaking and inefficient, generating a significant amount of waste. But with increasing global demand for REEs, the U.S. faces a supply issue. Figuring out how to improve lanthanides separation, potentially through oxidation chemistry, will ultimately enhance the supply of these critical elements. 

— Anne Wainscott-Sargent
 
Funding: This research was supported by grants from the National Science Foundation and the U.S. Department of Energy. 
 

Electing to have invasive brain surgery isn’t something most people have done. Ian Burkhart isn’t most people.

“When I finished rehabilitation, my doctors and therapist and, most importantly, the insurance company said, ‘For someone with your condition, we feel like you've made all the improvement that you will, have a nice life,’” said Burkhart, who was left with limited feeling and mobility below the neck after a 2010 diving accident injured his spinal cord. “That didn't sit well with me.” 

Hoping even a fraction of hand mobility would increase his independence, Burkhart turned to a clinical research trial on a brain-computer interface (BCI) designed to detect movement signals in the brain and send them to a computer to stimulate the arm muscles, bypassing the spinal cord in the hopes of restoring movement.

“I had had four and a half years of never thinking my hand was going to move again,” he recalled. When testing to see if he qualified for the study, researchers stimulated his hand muscles. “I saw my hand move, and that was all I needed to know — I was ready to risk it all for something that may or may not work.” 

Burkhart’s story is one of many that reveal the deeply personal side of neurotechnology research. Centering lived experiences like his is central to the mission of the Institute for Neuroscience, Neurotechnology, and Society (INNS), a new Interdisciplinary Research Institute launching this July at Georgia Tech.

“If we want to build neurotechnology that truly serves people, their voices should be part of the scientific process from the very beginning,” said Chris Rozell, a professor in the School of Electrical and Computer Engineering and one of the many researchers at Georgia Tech working to understand and advance BCIs. “Hearing from individuals who live with these devices helps guide more ethical, inclusive, and effective research. The entire field benefits from inclusive conversations like these.” 

Life With a Brain Implant

Burkhart and three others recently shared their stories live on the Ferst Center stage at “Wired Lives: Personal Stories of Brain-Computer Interfaces, an event organized by Georgia Tech’s Neuro Next Initiative. Their stories gave over 200 attendees a rare, honest glimpse into the realities of neurological conditions and the path to brain-computer interface research.

“I was at a crossroads in my life at 47 years old,” said Brandan Mehaffie, who told his story of living with early-onset Parkinson’s disease. “I was trying to figure out, do I continue with the status quo and watch my career dwindle into nothing? Watch my life with my family, my kids, not being able to go on hikes or family vacations?” 

Mehaffie eventually qualified for deep brain stimulation (DBS) treatment, a procedure where a pacemaker-like device is implanted into the brain to provide electrical stimulation. “It changed my life for the better in ways that I can't even tell you.”

When former U.S. Air Force Sgt. Jennifer Walden’s doctor told her about a clinical trial testing DBS as an epilepsy treatment, she jumped at the chance. “The 48 hours after those seizures are 48 hours where you don't want to live anymore.” Walden explained that her response to medication had dwindled after years of traditional treatment, increasing the frequency and severity of her seizures. “I feared suicide. It's something I didn't want to do, but if something happened in those 48 hours to end my life, I didn't care,” she said.

“I am now probably 99% seizure-free,” she beamed as she recalled her response to DBS on stage. “I don't know how I got so lucky in life, but I don't take it for granted.”

Common themes in their stories were resilience, hope, and a deep desire to give back.

“When I joined the study, it had no physical benefit to me, but that's not why I joined it,” said Scott Imbrie, who experienced a major spinal cord injury and participates in a clinical BCI study at the University of Chicago. “I decided to have invasive brain surgery and have electrodes implanted on my brain to help other people.”

A New Approach to Interdisciplinary Research

Timed alongside the InterfaceNeuro conference at Georgia Tech, the gathering offered a rare opportunity for scientists, engineers, and clinicians to engage directly with the lived experiences of individuals using brain-computer interfaces — a perspective often missing from traditional research settings.

“It makes you think about how we ethically conduct research and how we recruit and interface with patients,” said Eric Cole, a postdoctoral researcher at Emory University, who was reminded that many patients participating in BCI research have been on a long, difficult journey before interacting with researchers. “We should remember to take their experiences seriously and respect them. They're giving up something for research — that part we should always remember.”

“Wired Lives” was one in a series of events highlighting the lived experience of individuals with neurological conditions organized by the Neuro Next Initiative, which has served as the precursor to INNS.

“A core mission of INNS is to consider how neuroscience and neurotechnology impact people’s lives,” said Jennifer Singh, associate professor in the School of History and Sociology, a member of NNI’s executive committee, and a co-organizer of the event. “Their stories matter when it comes to the types of science and technology we pursue and how they benefit the human condition. Many scientists and engineers may never encounter people living with neurological conditions outside of events like this. That will be a priority for INNS — to bring the expertise of lived experiences to the research process.”

Ian Burkhart’s lived experience reminded the audience that not every clinical trial has a happy ending. His BCI was ultimately removed after seven years as research funding ran short, taking his newly improved hand mobility with it. Despite this, Burkhart remained positive.

“I'm so glad I was able to take that risk and have that voluntary brain surgery and participate in this type of research because it's defined my life.” Burkhart went on to found the BCI Pioneers Coalition and his own nonprofit because of his research participation. “It gave me a lot of hope for the future, and a lot of hope that these types of devices are going to be able to help people and improve their quality of life.”

This event was produced in partnership with The Story Collider and made possible through support from Blackrock Neurotech and Medtronic.

A new mission strives to take black hole imaging to space. Scientists from the Georgia Institute of Technology, the Georgia Tech Research Institute (GTRI), the National Aeronautics and Space Administration (NASA), and 12 universities from around the world recently convened for a three-day workshop to plan the launch of the Space-based Precision Millimeter Interferometry Telescope (SPRITE) project. The proposed NASA Medium-Class Explorer mission aims to revolutionize the understanding of black holes through space-based imaging.

From Earth to orbit: The next step

SPRITE builds on the groundbreaking achievements of the Event Horizon Telescope (EHT), a network of ground-based telescopes able to synchronize observations from around the globe. EHT is most well-known for capturing the first images of black holes, M87* and Sagittarius A*.

“We’ve done what we can from the ground; we’ve run out of Earth,” says Professor and Chair of the School of Physics Feryal Özel, SPRITE’s principal investigator and a well-known astrophysicist instrumental in EHT’s success and development. “SPRITE will send two telescopes into orbit – achieving better imaging than a dozen telescopes on the ground.”

By sending the telescopes into space, the mission will be able to overcome the limitations of Earth’s atmosphere, which blocks certain wavelengths of light and produces turbulence that can degrade image quality. Unlike Earth-based telescopes, which rely on the planet’s rotation to change viewing angles, SPRITE’s telescopes will rotate independently across the vastness of space with data continuously transmitted from the satellites to ground stations.

“I like to think of it as an MRI machine rotating around a patient,” explains Özel. “In space, our telescopes can perform this orbital dance from great distances – giving us multiple perspectives of a black hole and allowing us to build a much more complete image.”

Mission goals

SPRITE’s objectives are ambitious and far-reaching, specifically to:

• Create more images of previously unseen black holes at resolutions better than M87* and Sagittarius A*;
• Confirm the presence of binary black holes through visual imagery; and
• Study the hot gas dynamics around black holes.

This class of mission requires a three-year operational lifetime to achieve its main science goals – although planners estimate the project will be able to operate considerably longer.

Preparing for launch

SPRITE is being organized to reflect Georgia Tech’s commitment to advancing space science through interdisciplinary collaboration and innovation, and will work closely with the Institute’s new Space Research Initiative. Locating SPRITE at Georgia Tech allows the mission to benefit from the knowledge of leading experts from the Colleges of Sciences, Engineering, and Computing; and GTRI. 

The recent kickoff meeting marked SPRITE’s first large-scale gathering of contributors from around the world.

“We had smaller meetings before, but this was the first time the full team came together to share expertise and collaboratively shape the mission,” says Özel. “Most importantly, this meeting showed us that we have a strong scientific case for our mission and its design.”

Over the next two to three years, the team will work to validate key technologies and prepare a compelling proposal for NASA. If selected, SPRITE is expected to launch in the mid-2030s, marking the beginning of a new era in space imaging.

Georgia Tech scientists have uncovered evidence that a mountain on the rim of Jezero Crater — where NASA’s Perseverance Rover is currently collecting samples for possible return to Earth — is likely a volcano. Called Jezero Mons, it is nearly half the size of the crater itself and could add critical clues to the habitability and volcanism of Mars, transforming how we understand Mars’ geologic history.

The study, “Evidence for a composite volcano on the rim of Jezero crater on Mars,” was published this May in the Nature-family journal Communications Earth & Environment, and underscores how much we have left to learn about one of the most well-studied regions of Mars.

Lead author Sara C. Cuevas-Quiñones completed the research as an undergraduate during a summer program at Georgia Tech; she is now a graduate student at Brown University. The team also included corresponding author Professor James J. Wray (School of Earth and Atmospheric Sciences), Assistant Professor Frances Rivera-Hernández (School of Earth and Atmospheric Sciences), and Jacob Adler, then a postdoctoral fellow at Georgia Tech and now an assistant research professor at Arizona State University. 

“Volcanism on Mars is intriguing for a number of reasons — from the implications it has on habitability, to better constraining the geologic history,” Wray says. “Jezero Crater is one of the best studied sites on Mars. If we are just now identifying a volcano here, imagine how many more could be on Mars. Volcanoes may be even more widespread across Mars than we thought.”

A mountain in the margins

Wray first noticed the mountain in 2007, while considering Jezero Crater as a graduate student. 

“I was looking at low-resolution photos of the area and noticed a mountain on the crater’s rim,” he recalls. “To me, it looked like a volcano, but it was difficult to get additional images.” At the time, Jezero Crater was newly discovered, and imaging focused almost entirely on its intriguing water history, which is on the opposite side of the 28-mile-wide crater.

Then, Jezero Crater, due to these lake-like sedimentary deposits, was selected as the landing spot for the 2020 Perseverance Rover — an ongoing NASA mission seeking signs of ancient Martian life and collecting rock samples for possible return to Earth.

However, after landing, some of the first rocks Perseverance encountered were not the sedimentary deposits one might expect from a previously-flooded area — they were volcanic. Wray suspected he might know the origin of these rocks, but to make a case for it, he would need to show that the mountain on the edge of Jezero Crater could indeed be a volcano.

A new researcher — and old data

The opportunity presented itself several months after Perseverance landed when Cuevas-Quiñones applied to a Summer Research Experience for Undergraduates (REU) program hosted by the School of Earth and Atmospheric Sciences to work with Wray. 

“A previous study led by Briony Horgan (professor of planetary science at Purdue University) had also suggested that Jezero Mons could be volcanic,” Cuevas-Quiñones says. “I began wondering if there was a way to home in on these suspicions.”

The team partnered with study coauthor Rivera-Hernández, who specializes in characterizing the surface of planets and their habitability. They decided to use datasets gathered from spacecraft orbiting Mars to compare the properties of Jezero Mons to other, known, volcanoes. “We can’t visit Mars and definitively prove that Jezero Mons is a volcano, but we can show that it shares the same properties with existing volcanoes — both here on Earth and Mars,” Wray explains.

“We used data from the Mars Odyssey Orbiter, Mars Reconnaissance Orbiter, ExoMars Trace Gas Orbiter, and Perseverance Rover, all in combination to puzzle this out,” he adds. “I think this shows that these older spacecraft can be extremely valuable long after their initial missions end — these old spacecraft can still make important discoveries and help us answer tricky questions.”

For Cuevas-Quiñones, it also underscores the importance of REU programs and opportunities for undergraduates. “I was an undergraduate student at the time, and this was my first time conducting research,” she says. “It was fascinating to learn how different data sets could be used to decode the origin of a landscape. After Jezero Mons, it became clear to me that I would continue to study Mars and other planetary bodies.”

The search for life — and determining Mars’ age

The discovery makes the crater even more intriguing in the search for past life on Mars. A volcano so close to watery Jezero Crater could add a critical source of heat on an otherwise cold planet, including the potential for hydrothermal activity — energy that life could use to thrive. 

This type of system also holds interest for Mars as a whole. “The coalescence of these two types of systems makes Jezero more interesting than ever,” shares Wray. “We have samples of incredible sedimentary rocks that could be from a habitable region alongside igneous rocks with important scientific value.” If returned to Earth, igneous rocks can be radioisotope dated to know their age very precisely. Dating the Jezero Crater samples could be used to calibrate age estimates, providing an unprecedented window into the geologic history of the planet.

The take home message? “Mars is the best place we have to look in our solar system for signs of life, and thanks to the Perseverance Rover collecting samples in Jezero, the United States has samples from the best rocks in the best place on Mars,” Wray says. “If these samples are returned to Earth, we can do incredible, groundbreaking science with them.”

 

 

DOI: https://doi.org/10.1038/s43247-025-02329-7

Funding: Cuevas-Quiñones was supported by Georgia Tech’s 2021 Research Experience for Undergraduates program sponsored by NSF and 3M corporation. Wray was supported by NASA funding for Co-Investigators on HiRISE and CaSSIS. CaSSIS is a project of the University of Bern and funded through the Swiss Space Office via ESA’s PRODEX program. The instrument hardware development was also supported by the Italian Space Agency (ASI) (ASI-INAF agreement 2020-17-HH.0), INAF/Astronomical Observatory of Padova, and the Space Research Center (CBK) in Warsaw. Support from SGF (Budapest), the University of Arizona Lunar and Planetary Lab, and NASA are also gratefully acknowledged. Operation support from the UK Space Agency is also acknowledged.

The Renewable Bioproducts Institute (RBI) 2025 Spring Workshop, held May 12–13, brought together leading researchers, industry professionals and students to explore innovations in pulp and paper manufacturing. Hosted at the Kendeda Building and the Paper Tricentennial Building, the event opened with remarks from Carson Meredith, RBI executive director, and featured presentations on energy and resource efficiency, carbon accounting and competitiveness.

Highlights included talks on membrane separations, electrochemical processing and low-carbon fuels, with contributions from experts such as Chris Luettgen, Jose Gonzalez, Sankar Nair, Marta Hatzell and Dave Beck.

Insights from the 2025 RBI Spring Workshop

• Revolutionizing Kraft Pulping with Graphene Oxide Membranes
  Georgia Tech’s rGO membrane technology is transforming the kraft pulping process. These membranes enable efficient black liquor dewatering, organic acid recovery and lignin fractionation—leading to significant energy savings, water recycling and new revenue streams from bioproducts.
• North America’s Dual Challenge: High Emissions, High Opportunity
  While North America remains a pulp and paper powerhouse (15% of global capacity), it also has one of the highest carbon intensities. This presents both a challenge and an opportunity to lead in emissions reduction through asset renewal and innovation.
• Biogenic CO₂: From Emission to Asset
  Kraft pulp mills emit large volumes of biogenic CO₂—an untapped resource. With carbon capture and utilization (CCUS), mills could generate up to $300 million annually in carbon removal credits, turning emissions into economic value.
• Integrated Biorefineries: The Future of Pulp Mills
  The vision for pulp mills is evolving—from single-product facilities to multi-product biorefineries. Innovations like lignin-based materials, organic acid conversion to biofuels and advanced nanofiltration are paving the way for circular use of carbon in manufacturing.
• Decarbonization Is a Strategic Imperative
  With increasing regulatory and consumer pressure, especially from global brands targeting Scope 3 emissions, pulp and paper producers must act. Embracing technologies like rGO membranes and CCUS is not just sustainable—it’s essential for competitiveness.
• Electrochemical Carbon Capture and Conversion for On-Site Fuel Production
  Hatzell’s lab is pioneering the use of bipolar membrane (BPM) electrolysis to convert captured carbon (from bicarbonate solutions) into valuable fuels like CO and H₂. This approach enables:
  • 100% carbon utilization with more than 70% Faradaic efficiency for CO production.
  • Integration with pulp and paper processes to valorize CO₂ emissions instead of storing them.
  • Use of acid-stable single-atom nickel catalysts to improve selectivity and efficiency.
• The PAPER-ZERO Initiative
  This initiative explores transformative pathways to decarbonize the pulp and paper industry by:
  • Evaluating scenarios that eliminate combustion of black liquor and waste wood.
  • Investigating renewable energy integration and alternative uses for black liquor.
  • Assessing the cost, energy and environmental trade-offs of emerging technologies.

The workshop also featured a student poster session, networking opportunities and updates on APPTI collaborative projects. The event concluded with a meeting of the RBI Industry Advisory Board, reinforcing the institute’s role as a hub for partnership and innovation in renewable bioproducts.

“We’re grateful to our industry member partners for sharing their time and expertise,” said Belinda Vogel, research engagement manager. “The advisory board meeting highlighted how essential collaboration is in advancing basic science and renewable bioproduct manufacturing.”

Cyrus Aidun has been a distinguished professor at Georgia Tech’s George W. Woodruff School of Mechanical Engineering since 2003. His career is marked by groundbreaking research and significant contributions to fluid mechanics and bioengineering, establishing him as a leading figure in these fields.

In particular, Aidun has focused on industrial competitiveness. His efforts to reduce energy and water consumption in fiber composite products have attracted significant attention and funding. This research is critical for developing sustainable and cost-effective manufacturing processes while reducing environmental impact.

As principal investigator, Aidun has received funding for major projects from the Department of Energy’s Office of Energy Efficiency and Renewable Energy (DOE-EERE, with Devesh Ranjan as co-principal investigator), the DOE’s Advanced Research Projects Agency-Energy, and the Defense Advanced Research Projects Agency (with Art Rangauskas at the University of Tennessee). These projects are affiliated with Aidun’s development of the Multiphase Forming Lab at Georgia Tech’s Renewable Bioproducts Institute (RBI).

The only one of its kind in North America, this innovative system significantly reduces the amount of water required to process paper. As a result, the heat and energy needed to dry the paper — typically an energy-intensive process — are also reduced. The Multiphase Former uses up to 70% less water, which substantially lowers the energy required for drying. This research, which began about five years ago, has drawn broad interest from industry. A more recent project, funded by DOE-EERE and led by Carson Meredith, combines Multiphase Forming with the latest technologies in refining and drying.

Aidun earned his bachelor’s and master’s degrees from Rensselaer Polytechnic Institute and completed his Ph.D. at Clarkson University in 1985. He joined the Woodruff School in 2003 after serving two years as a program director at the National Science Foundation. He began at Georgia Tech in 1988 as an assistant professor at the Institute of Paper Science and Technology. Previously, he was a research scientist at Battelle Research Laboratories, a postdoctoral associate at Cornell University, and a senior research consultant at the National Science Foundation’s Supercomputer Center at Cornell.

Aidun has received several national and international honors, including the National Science Foundation Presidential Investigator Award, the Gunnar Nicholson Fellowship, and the L.E. Scriven Award from the International Society of Coating Science and Technology.