Nanoscience and nanotechnology

Rachel Feltman of Scientific American’s “Science Quickly” podcast visits MIT.nano to learn more about MIT’s “clean laboratory facility that is critical to nanoscale research, from microelectronics to medical nanotechnology.” Prof. Vladimir Bulović, director of MIT.nano, explains: “Maybe a fifth of all of M.I.T.’s research depends on this facility…from microelectronics to nanotechnology for medicine to different ways of rethinking what will [the] next quantum computation look like. Any of these are really important elements of what we need to discover, but we need all of them to be explored at the nanoscale to get that ultimate performance.” 

Materials World Magazine reporter Sarah Morgan spotlights how MIT researchers have developed a new material that can reduce the hazardous materials produced during aluminum manufacturing. “Our membrane, which has a positively charged coating, repels aluminum while letting the less positively-charged sodium ions pass through,” explains undergraduate student Trent Lee. “This process allows us to concentrate and recover aluminum, so it can be put back into the production process instead of being wasted.”

MIT researchers have developed a technique to use a damage suppressing protein called “Dsup” to help protect cancer patients from the side effects of radiation therapy, writes Shane Galvin for The New York Post. “Scientists, encouraged by this remarkable discovery, believe they can create an upgraded version of Dsup which can be used to radiation-proof human cells without any unwanted drawbacks,” writes Galvin. “They also believe that the protein could be used by astronauts to prevent space-related radiation [damage].” 

Researchers at MIT and elsewhere have found that a protein developed by tardigrades could be used to help protect cancer patients from the side effects of radiation therapy, reports Ed Cara for Gizmodo. “The findings could someday lead to an invaluable add-on treatment for many cancer patients,” writes Cara. He adds that the new technique “could even possibly be used to protect astronauts from space-related radiation or to protect cancer patients from other sources of treatment-induced DNA damage, such as chemotherapy drugs.”

According to a new study co-authored by researchers at MIT, harnessing the damage suppressor protein found in tardigrades, a microscopic organism known for its resilience, could help ease the impacts of radiation therapy on cancer patients. “The Dsup protein, which binds directly to DNA and reduces radiation-induced strand breaks, immediately struck us as a promising tool to mitigate normal tissue injury during radiotherapy,” Prof. Giovanni Traverso explains to Corinna Singleman of Genetic Engineering & Biotechnology News. 

Researchers from MIT and elsewhere have developed a new vaccine that “could be potentially used against a broad array of coronaviruses like the one that causes Covid-19 and potentially forestall future pandemics,” reports Alex Knapp for Forbes. “The vaccine involves attaching tiny pieces of virus that remain unchanged across related strains to a nanoparticle,” explains Knapp.

MIT Profs. Angela Belcher, Emery Brown, Paula Hammond and Feng Zhang have been honored with National Medals of Science and Technology, reports Michael T. Neitzel for Forbes. Additionally, R. Lawrence Edwards '76 received a National Medal of Science and Noubar Afeyan PhD '87, a member of the MIT Corporation, accepted a National Medal on behalf of Moderna. The recipients have been awarded “the nation’s highest honors for exemplary achievements and leadership in science and technology,” explains Neitzel. 

Researchers at MIT have developed a “new type of transistor using semiconductor nanowires made up of gallium antimonide and iridium arsenide,” reports Alex Knapp for Forbes. “The transistors were designed to take advantage of a property called quantum tunneling to move electricity through transistors,” explains Knapp. 

Researchers at MIT have demonstrated “fully 3D-printed semiconductor-free resettable fuses,” reports Jesse Allen for Semiconductor Engineering. “The researchers plan to further develop the technology to print fully functional electronics and aim to fabricate a working magnetic motor using only extrusion 3D printing,” writes Allen. 

Prof. Admir Masic speaks with New York Times reporter Amos Zeeberg about his research studying the benefits of lime clasts – a material used in ancient Roman infrastructure. According to Masic’s research, “these lime clasts were actually reservoirs of calcium that helped fill in cracks, making the concrete self-healing,” writes Zeeberg. “As cracks formed, water would seep in and dissolve the calcium in the lime, which then formed solid calcium carbonate, essentially creating new rock that filled in the crack.”

Prof. Moungi Bawendi, a recipient of the 2023 Nobel Prize in Chemistry, speaks with Nobel Prize Conversations host Adam Smith about the joys of visualizing quantum mechanics, the inspiration for his Nobel-prize winning work and his love of music. “Being in a place like MIT and being exposed to engineering and other scientific fields and medicine across the river and Harvard Medical School and a lot of startups around here, you really are exposed to so many things that are so interesting and I love that,” says Bawendi. “Those things give me ideas of how to go back to the lab and take different directions.” 

MIT scientists have discovered that metals become harder when heated under certain conditions, reports Isabelle Dume for Physics World.  In an interview, Prof. Christopher Schuch says by bombarding metals with tiny bits of sapphire small enough to avoid shock waves, “the result is a clean and quantitative set of data that clearly reveals the counterintuitive ‘hotter-is-stronger’ effect.”

Prof. Sara Seager, Prof. Robert Langer and Prof. Nancy Kanwisher have been awarded the 2024 Kavli Prize for their work in the three award categories: astrophysics, nanoscience, and neuroscience, respectively, reports Michael T. Nietzel for Forbes. According to the Norwegian Academy of Science and Letters, this award honors scientists with outstanding research “that has broadened our understanding of the big, the small and the complex,” writes Nietzel. 

A new study by MIT engineers finds that heating metals can sometimes make them stronger, a “surprising phenomenon [that] could lead to a better understanding of important industrial processes and make for tougher aircraft,” reports Karmela Padavic-Callaghan for New Scientist. “It was just so unexpected or backwards of what you might conventionally see,” explains graduate student Ian Dowding. 

MIT physicists have “successfully placed two dysprosium atoms only 50 nanometers apart—10 times closer than previous studies—using ‘optical tweezers,’” reports Darren Orf for Popular Mechanics. Utilizing this technique can allow scientists to “better understand quantum phenomena such as superconductivity and superradiance,” explains Orf.