Houston researchers develop strong biomaterial that could replace plastic

plastic problem

A team led by M.A.S.R. Saadi and Muhammad Maksud Rahman has developed a biomaterial that they hope could be used for the “next disposable water bottle." Photo courtesy Rice University.

Collaborators from two Houston universities are leading the way in engineering a biomaterial into a scalable, multifunctional material that could potentially replace plastic.

The research was led by Muhammad Maksud Rahman, an assistant professor of mechanical and aerospace engineering at the University of Houston and an adjunct assistant professor of materials science and nanoengineering at Rice University. The team shared its findings in a study in the journal Nature Communications earlier this month. M.A.S.R. Saadi, a doctoral student in material science and nanoengineering at Rice, served as the first author.

The study introduced a biosynthesis technique that aligns bacterial cellulose fibers in real-time, which resulted in robust biopolymer sheets with “exceptional mechanical properties,” according to the researchers.

Biomaterials typically have weaker mechanical properties than their synthetic counterparts. However, the team was able to develop sheets of material with similar strengths to some metals and glasses. And still, the material was foldable and fully biodegradable.

To achieve this, the team developed a rotational bioreactor and utilized fluid motion to guide the bacteria fibers into a consistent alignment, rather than allowing them to align randomly, as they would in nature.

The process also allowed the team to easily integrate nanoscale additives—like graphene, carbon nanotubes and boron nitride—making the sheets stronger and improving the thermal properties.

“This dynamic biosynthesis approach enables the creation of stronger materials with greater functionality,” Saadi said in a release. “The method allows for the easy integration of various nanoscale additives directly into the bacterial cellulose, making it possible to customize material properties for specific applications.”

Ultimately, the scientists at UH and Rice hope this discovery could be used for the “next disposable water bottle,” which would be made by biodegradable biopolymers in bacterial cellulose, an abundant resource on Earth.

Additionally, the team sees applications for the materials in the packaging, breathable textiles, electronics, food and energy sectors.

“We envision these strong, multifunctional and eco-friendly bacterial cellulose sheets becoming ubiquitous, replacing plastics in various industries and helping mitigate environmental damage,” Rahman said the release.

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The new Rice Center for Membrane Excellence, or RiCeME, will focus on membrane separation practices and advance next-generation membrane materials, which are essential in energy conversion processes. Image via Getty Images.

Rice launches new center focused on membrane technology for energy conversion

new material

Rice University announced the formation of a new center focused on developing advanced membrane materials and separation technologies for the energy transition.

Known as the Rice Center for Membrane Excellence, or RiCeME, the center will aim to secure funding to develop more efficient and sustainable membrane separation practices and advance next-generation membrane materials, which are essential in energy conversion processes.

The center, part of Rice's Water Technologies Entrepreneurship and Research, or WaTER Institute, also plans to drive water reuse and resource recovery solutions, perform bench-scale testing and pilot-scale demonstrations, and even host workforce development workshops and symposia on membrane science and technology.

The announcement was made during the Rice Global Paris Center Symposium in Paris.

RiCeME will be led by Menachem Elimelech, the Nancy and Clint Carlson Professor in Civil and Environmental Engineering and Chemical and Biomolecular Engineering at Rice. His research focuses on membrane-based processes, advanced materials and nanotechnology.

“Houston is the ideal place to drive innovation in membrane separation technologies,” Elimelech said in a news release. “Membranes are critical for energy-related separations such as fuel cells, carbon capture and water purification. Our work will enhance efficiency and sustainability in these key sectors.”

RiCeME will work on building partnerships with Houston-area industries, including oil and gas, chemical, and energy sectors, according to the release. It will also rely on interdisciplinary research by engaging faculty from civil and environmental engineering, chemical and biomolecular engineering, materials science and nanoengineering, and chemistry departments at Rice.

“Breakthroughs in membrane technology will play a crucial role in addressing energy and sustainability challenges,” Ramamoorthy Ramesh, executive vice president for research at Rice, said in a news release. “RiCeME’s interdisciplinary approach ensures that our discoveries move from the lab to real-world applications, driving innovation at the intersection of science and industry.”.

The Rice team's process is up to 10 times more effective than existing lithium-ion battery recycling. Photo by Gustavo Raskosky/Rice University

Houston scientists discover breakthrough process for lithium-ion battery recycling

researching for the future

With the rise of electric vehicles, every ounce of lithium in lithium-ion batteries is precious. A team of scientists from Rice University has figured out a way to retrieve as much as 50 percent of the material in used battery cathodes in as little as 30 seconds.

Researchers at Rice University’s Nanomaterials Laboratory led by Department of Materials Science and NanoEngineering Chair Pulickel Ajayan released the findings a new study published in Advanced Functional Materials. Their work shows that the process overcomes a “bottleneck” in lithium-ion battery recycling technology. The researchers described a “rapid, efficient and environmentally friendly method for selective lithium recovery using microwave radiation and a readily biodegradable solvent,” according to a news release.

Past recycling methods have involved harsh acids, and alternative eco-friendly solvents like deep eutectic solvents (DESs) at times have not been as efficient and economically viable. Current recycling methods recover less than 5 percent of lithium, which is due to contamination and loss during the process.

In order to leach other metals like cobalt or nickel, both the choline chloride and the ethylene glycol have to be involved in the process, according to the researchers at Rice. The researchers submerged the battery waste material in the solvent and blasted it with microwave radiation since they knew that of the two substances only choline chloride is good at absorbing microwaves.

Microwave-assisted heating can achieve similar efficiencies like traditional oil bath heating almost 100 times faster. Using the microwave-based process, Rice found that it took 15 minutes to leach 87 percent of the lithium, which differs from the 12 hours needed to obtain the same recovery rate via oil bath heating.

“This method not only enhances the recovery rate but also minimizes environmental impact, which makes it a promising step toward deploying DES-based recycling systems at scale for selective metal recovery,” Ajayan says in the release.

Due to rise in EV production, the lithium-ion battery global market is expected to grow by over 23 percent in the next eight years, and was previously valued at over $65 billion in 2023.

“We’ve seen a colossal growth in LIB use in recent years, which inevitably raises concerns as to the availability of critical metals like lithium, cobalt and nickel that are used in the cathodes,” the study's co-author, Sohini Bhattacharyya, adds. “It’s therefore really important to recycle spent LIBs to recover these metals.”

The DOE program allows graduate students to work on research projects that address national and international energy, environmental, and nuclear challenges. Photo via UH.edu

Houston students selected for prestigious DOE program

rising stars

Three rising stars in the energy sector who are graduate students at the University of Houston have been chosen for a prestigious U.S. Department of Energy research program.

UH doctoral candidates Caleb Broodo, Leonard Jiang, and Farzana Likhi, are among 86 students from 31 states who were selected for the Office of Science Graduate Student Research program, which provides training at Department of Energy (DOE) labs.

“This recognition is a testament to their hard work and dedication to pushing the boundaries of science, and to our commitment to fostering excellence in research and innovation,” Sarah Larsen, vice provost and dean of the UH’s graduate school, says in a news release.

The DOE program allows graduate students to work on research projects that address national and international energy, environmental, and nuclear challenges.

The program “is a unique opportunity for graduate students to complete their Ph.D. training with teams of world-class experts aiming to answer some of the most challenging problems in fundamental science,” says Harriet Kung, acting director of DOE’s Office of Science. “Gaining access to cutting-edge tools for scientific discovery at DOE national laboratories will be instrumental in preparing the next generation of scientific leaders.”

Here’s a rundown of the UH trio’s involvement in the DOE program:

Broodo, a second-year Ph.D. candidate whose research focuses on heavy ion nuclear physics, will work at Brookhaven National Laboratory in New York.
Jiang, a third-year Ph.D. candidate in materials science and engineering, will head to Argonne National Laboratory in Illinois to research electrochemistry.
Likhi, a fourth-year Ph.D. candidate in the materials science and engineering program, will conduct research on microelectronics at Oak Ridge Laboratory in Tennessee.

Junichiro Kono has assumed leadership of the Smalley-Curl Institute at Rice University. Photo via Rice.edu

Rice names new leader for prestigious nanotechnology, materials science institute

take the lead

A distinguished Rice University professor has assumed the reins of a unique institute that focuses on research within nanoscience, quantum science, and materials science.

Junichiro Kono has assumed leadership of the Smalley-Curl Institute, which houses some of the world’s most accomplished researchers across fields including advanced materials, quantum magnetism, plasmonics and photonics, biophysics and bioengineering, all aspects of nanoscience and nanotechnology, and more.

“With his great track record in fostering international research talent — with student exchange programs between the U.S., Japan, Taiwan, China, Singapore and France that have introduced hundreds of students to new cultures and ways of researching science and engineering — Jun brings a wealth of experience in building cultural and technological ties across the globe,” Ramamoorthy Ramesh, executive vice president for research, says in a news release.

Kono is the Karl F. Hasselmann Professor in Engineering, chair of the Applied Physics Graduate Program and professor of electrical and computer engineering, physics and astronomy and materials science and nanoengineering, and is considered a global leader in studies of nanomaterials and light-matter interactions. He currently leads Rice’s top 10-ranked Applied Physics Graduate Program.

Under his leadership, the program is expected to double in size over. By 2029. The Smalley-Curl Institute will also add additional postdoctoral research fellowships to the current three endowed positions.

The Smalley-Curl Institute is named for Nobel Laureates Richard Smalley and Robert Curl (‘54). Earlier in his career, Kono once worked with Smalley on the physical properties of single-wall carbon nanotubes (SWCNTs), which led to the experimental discovery of the Aharonov-Bohm effect on the band structure of SWCNTs in high magnetic fields.

“I am deeply honored and excited to lead the Smalley-Curl Institute,” Kono says in a news release. “The opportunity to build upon the incredible legacy of Richard Smalley and Robert Curl is both a privilege and a challenge, which I embrace wholeheartedly. I’m really looking forward to working with the talented researchers and students at Rice University to further advance our understanding and application of nanomaterials and quantum phenomena. Together, we can accomplish great things.”

Kono succeeds Rice professor Naomi Halas as director of the institute. Halas is the Stanley C. Moore Professor of Electrical and Computer Engineering and the founding director of the Laboratory for Nanophotonics.

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Energy giant Shell lists Houston HQ for sale for $325 million

asset offload

Energy giant Shell has put its U.S. headquarters in Houston’s Energy Corridor on the market and is exploring the sale of its U.S. chemical business.

Green Street News reported Shell just listed its longtime Energy Corridor campus at 150 N. Dairy Ashford Road. The asking price is $325 million, The Real Deal reported. Shell plans to lease back half of the nearly 1.5 million-square-foot Woodcreek campus for 15 years.

A sale-leaseback deal could transform the 43.6-acre campus into a multitenant hub, CoStar News reported.

“Houston is a critical hub for Shell globally and the headquarters of our U.S. businesses,” a Shell spokesperson told the Houston Business Journal. “We remain committed to Houston and are evaluating opportunities to optimize our Woodcreek campus as part of our ongoing review of workplace needs while maintaining a strong presence in the city.”

Shell occupied its first building at the West Houston campus in 1980. The company employs more than 6,000 people in Texas.

Shell is one of the highest-profile businesses occupying space in the Energy Corridor. It’s home to 67,000 workers, more than 27 million square feet of office and mixed-use space, and 3.8 million square feet of retail and restaurant space.

Shell considers $8B sale of chemical business

As the company seeks to unload its Woodcreek campus, The Financial Times reported Shell is looking into selling its U.S. chemical business. The price tag: $8 billion.

Potential buyers include Spring-based ExxonMobil and Houston-based LyondellBasell.

Shell operates four chemical plants in Texas, Louisiana and Pennsylvania, producing an array of chemicals for use in plastics, detergents and pharmaceuticals.

Shell CEO Wael Sawan said last year that the company had spent $45 billion in capital “that is underperforming for us,” split between its chemical business and renewable energy arm.

Shell also agreed to sell its solar and wind power business in India this summer. Read more here.

Trump continues to champion data center growth despite rising voter concerns

Data Development

President Donald Trump, speaking alongside cryptocurrency leaders at the White House, made a statement that Republican and Democratic candidates alike wouldn't touch.

“If I were the mayor of a town or the governor of a state, and I had a chance to get a big plant in, an AI plant or a data center,” Trump said, “I would absolutely want it because the jobs are enormous and the money paid, the taxes paid, are just enormous.”

It's not the kind of message anyone is using in competitive midterm races.

The race to build data centers, which power artificial intelligence and cloud computing, has run aground amid frustration from voters who don't want to live near the massive warehouse campuses. Even the Senate Republicans' campaign arm warned that anger over data centers — some of which dwarf football stadiums and use more energy than small cities — could cost them a seat.

Opposition stretches across the political spectrum because of fears that the behemoths will jack up electricity bills, drain people's water wells, create unhealthy amounts of air and noise pollution and forever change a community's character — all while getting lucrative tax breaks from states competing for their business.

Trump has framed data centers as a necessary component of a top national and economic security priority: winning the AI race against China. However, he also has acknowledged concern over rising electricity bills, previously saying “it’s only fair” for the companies to shoulder their costs.

He also suggested this week that data centers need “a little public relations help.” In recent months, he has gotten tech giants to sign a voluntary pledge to shield U.S. consumers from higher utility bills from data centers, even as he pushes to streamline the process for companies and utilities to build their own power plants.

But building power plants doesn't happen overnight, and the immediate political reality for candidates across the country is far different.

“It is yet another dimension in which the White House appears tone deaf — tone deaf at best and indifferent to the interest of other Republican candidates at worst,” said James Henson, the director of the Texas Politics Project at the University of Texas, Austin, a nonpartisan research organization.

Republican committee issues warning over data centers in Ohio

Statewide candidates from Nevada to Pennsylvania, both Republican and Democratic, are weaponizing data centers against their opponents, and candidates who absorb those attacks are subsequently trying to distance themselves from them.

In Ohio, a data center hot spot with closely contested races for governor and U.S. Senate, the National Republican Senatorial Committee warned in a memo Tuesday that Sen. Jon Husted is vulnerable to losing his seat because of the centers.

Democratic nominee Sherrod Brown is airing attack ads against Husted that call him the “face of data centers in Ohio” as people gather signatures for a statewide referendum to ban their construction.

The Republican memo said it's been a “sleeper issue for the entire election cycle.”

“Brown is using it because it works,” the NRSC said. “More than any other thing in this race, data centers are the anchor hanging around Husted’s neck. If he loses and data centers get the blame, politicians across the country will take notice — and they will not go near the next one.”

The memo suggested voters may balk at Democratic candidates who want to stop data center construction altogether in favor of a Republican candidate who only wants data centers built if a community approves it in a local vote and it pays for its own power, water and other utilities.

Most registered voters oppose building a data center in their area, according to a July Fox News poll.

Still, the issue falls behind other voter concerns, such as cost of living, as November looms. A Quinnipiac Poll conducted in June asked voters what issues were important in deciding who to vote for in U.S. House elections, and about 4 in 10 mentioned AI data centers.

Trump’s statement already put to use in Nevada race

In Nevada, Democrat Aaron Ford quickly tied Trump’s statement to Republican Gov. Joe Lombardo, characterizing them as being in “lockstep on data centers.”

In a statement, Ford said Trump and Lombardo are “Nevada data centers’ biggest cheerleaders” who “only care about catering to their ‘billionaire friends’ while Nevadans pay the price.”

Ford this week unveiled a policy platform in which he said he would halt new state tax breaks for data centers — he estimated them at $200 million currently — while auditing existing projects to ensure they are delivering on promises. He also said he would ensure data centers pay for their electricity needs, do not deplete Nevada’s water supply and help local governments negotiate strong benefits agreements with developers.

Texas' governor changed course and got a jab from Trump

Texas Gov. Greg Abbott, who last November celebrated Google’s announcement of a $40 billion investment there by calling the state “the epicenter of AI development,” is under attack from his Democratic challenger, Gina Hinojosa, over his pursuit of data center development.

Abbott has since changed course by promising tougher action, such as removing the state’s sales tax exemption and holding up projects to review their energy usage.

Trump criticized the shift, saying “I think it's a mistake” in a recent interview with Punchbowl News.

Asked about Trump's support for data centers, Abbott's office said the governor's “top priority is to protect Texans’ safety and quality of life and ensure the integrity of our power grid and water supply.”

“Simply put, Texans must come first,” Abbott's office said.

Data centers complicated Wisconsin governor race

While Trump embraces data centers, even some of his allies are using them for political attacks. U.S. Rep. Tom Tiffany, running for Wisconsin governor, released a TV ad this week branding his Democratic opponent as “Data Center David Crowley.”

The ad includes a clip of Crowley saying Wisconsin could become the “AI and data hub not only for the entire country, but for the entire globe.”

Crowley has said local communities must have veto authority while also calling data centers a part of the modern economy that could bring significant economic benefits to the state.

Tiffany, who Trump has endorsed, has also said positive things about data centers. In January, Tiffany called data centers “exciting new technology,” in an interview with PBS Wisconsin. And last December, he voted for a bipartisan bill known as the SPEED Act, which is designed to accelerate construction of new AI infrastructure projects like data centers. It hasn't passed the Senate.

Neither Tiffany nor Crowley support a moratorium on new data center construction.

Tiffany has called for repealing the state tax incentive for data centers, while Crowley has not. They both have called for stricter regulation.

Crowley, at an event Wednesday where he received the endorsement of the environmental group Clean Wisconsin, downplayed the attacks Tiffany has made against his data center position.

“He’s getting very good at saying one thing and doing something different,” Crowley said, pointing to Tiffany’s votes in support of the SPEED Act.

“What Congressman Tom Tiffany’s doing is lying because he’s trying to run away from his record in Congress,” Crowley said.

Houston startup wins Space Force contract to advance quantum energy generator

quantum contract

Houston-based quantum energy technology startup Casimir Inc. has been awarded an STTR Phase I contract from the U.S. Space Force's SpaceWERX to support the development of the company's solid-state generator for potential use by the Department of the Air Force.

SpaceWERX is the innovation arm of the U.S. Space Force and a division within AFWERX, the incubator and innovation arm of the United States Department of the Air Force. The Air Force Research Laboratory and SpaceWERX, along with many other government agencies, help support innovation through the Small Business Innovation Research (SBIR) and Small Business Technology Transfer (STTR) grants and contracts.

As part of the new contract, Casimir will work to refine a fully independent generator. Casimir’s solid-state power technology could support national security missions by providing reliable power even in difficult-to-service environments.

In May, Casimir emerged from stealth, netting a $12 million seed round to commercialize its quantum energy chip. The semiconductor chips can generate power from quantum vacuum fields without the need for batteries or charging. The company aims to include the chips in large-scale energy systems that can power homes, commercial infrastructure and electric vehicles.

“This STTR funds some analysis work to address our proposed scaling approach of making our chips multi-layer to increase aggregate power,” Harold “Sonny” White, founder and CEO of Casimir, tells Energy Capital.

White adds that the company will work with Texas A&M to develop chip planarization techniques to support Casimir’s plans to scale. Additionally, White says the company is working with the U.S. Space Force to explore more applications for its technology.

“Casimir’s technology brings a new capability to the market in the form of our persistent power chips,” White adds. “This approach will be relevant to ultra-low-power electronics, and with the scaling approach we are developing, connected with the STTR work, will eventually be relevant to consumer electronics and beyond.”

Casimir has previously reported that it plans to commercialize its first-generation MicroSparc chip by 2028. The chips are expected to power devices for years without the need for replacements.

The total funding for this project has not yet been disclosed.

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