Chemistry

MIT has been selected as the world’s best university in the 2024 QS World University Rankings, reports Cecilia Rodriguez for Forbes. MIT has secured “the top position for the 12^th consecutive year,” writes Rodriguez.

Researchers from MIT and Duke have discovered that introducing weaker bonds into a material can produce stronger polymers, reports Norbert Sparrow for Plastics Today. “Side-chain cross-linked polymers are probably the most widely used type of polymer network,” says postdoc Shu Wang. “The concept [outlined] in our paper should work for all polymer networks that are side-chain cross linked.”

MIT alumni Steve Fredette, Aman Narang and Jonathan Grimm co-founded Toast, an all-in-one online restaurant management software company, reports Aaron Pressman for The Boston Globe. “The Toast founders spent hours talking to restaurateurs and built features such as real-time communication with the kitchen about special orders and dishes that have sold out, and a way of tracking loyalty rewards,” explains Pressman. 

MIT has ranked first in 11 different academic fields in the latest QS World University Rankings, reports Michael T. Nietzel for Forbes.

MIT scientists have uncovered evidence that wildfire smoke particles can lead to chemical reactions in the atmosphere that erode the ozone layer, reports Margaret Osborne for Smithsonian Magazine. “From a scientific point of view, it’s very exciting to see this brand new effect,” says Solomon. “From a planetary point of view… it would be just tragic to have mankind screw up solving the ozone hole by deciding that we’re going to [allow] a lot more of these fires if we don’t mitigate climate change.”

Researchers from MIT have found that wildfire smoke can activate chlorine-containing molecules that destroy the ozone layer, writes Donna Lu for The Guardian. “The question in my mind is: is the man-made chlorine going to get … diluted and destroyed out of the atmosphere faster than global climate change is going to increase the frequency and intensity of this kind of fire?” says Prof. Susan Solomon. “I think it’s going to be a race.”

Axios reporter Jacob Knutson highlights a new study by MIT researchers that finds the smoke released by major wildfires likely reactive chlorine-containing molecules in the atmosphere, delaying the recovery of the hole in the ozone layer. The researchers developed a model that found smoke released by Australian wildfires “chemically depleted between 3% to 5% of the total ozone column in the Southern Hemisphere mid-latitudes in June and July of 2020.”

New Scientist reporter James Dinneen writes that a new study by MIT researchers finds the smoke from Australian wildfires “may have enabled hydrochloric acid to dissolve at higher temperatures, generating more of the reactive chlorine molecules that destroy ozone.” Research scientist Kane Stone explains that “satellite observations showed chemistry that has never been seen before.”

MIT scientists have found that the Australian wildfires in 2019 and 2020 unleashed remnants of chlorine-containing molecules in the stratosphere, expanding the ozone hole and suggesting that more frequent wildfires could threaten the ozone hole’s recovery, reports Dyani Lewis for Nature. “It’s like a race,” says Prof. Susan Solomon. “Does the chlorine decay out of the stratosphere fast enough in the next, say, 40–50 years that the likely increase in intense and frequent wildfires doesn’t end up prolonging the ozone hole?”

Former U.S. Representative John Olver PhD '61, has died at age 86, reports Steve LeBlanc for the Associated Press. “[Olver’s] quiet demeanor and wry sense of humor concealed a razor-sharp understanding of the issues facing the American people and a deep faith in our ability to solve them together,” says Democratic U.S. Representative James McGovern.

MIT scientists have developed a new way of colliding ultracold molecules while controlling the rate at which they react, reports Martijn Boerkamp for Physics World. “Our work is a step to achieve quantum control over molecular collisions and reactions and to map out more broadly the collisional properties of these molecules with the goal of finding a deeper understanding,” explains Prof. Wolfgang Ketterle.

MIT researchers have found that in the U.S., “fires started by people account for a majority of premature deaths related to inhalation of tiny smoke particles,” writes Cara Murez for U.S. News & World Report. “Fires not only threaten human lives, infrastructure and ecosystems, but they are also a major cause for concern in terms of air quality,” says Therese Carter PhD ’22. 

Prof. Robert Langer and his colleagues write for Physics Today about how physics could help contribute to predicting tissue behaviors and accelerate the regeneration of human tissues and organs. “The physics of tissue engineering in general and of bioprinting in particular is a relatively new field that could provide numerous opportunities for tissue and organ fabrication and regeneration,” they write.

Prof. Danna Freedman speaks with Callie Crossley of GBH about the inspiration for her research and being named a 2022 MacArthur grant fellow. “What was really an under designed idea was taking molecules and using them for quantum information science,” says Freedman. “There is a lot of data, but less intention and realizing this wide open space and this possibility was really tremendous to me because having a new opportunity to design inorganic molecules is very exciting.”

Boston.com reporter Clara McCourt spotlights how three MIT students - Jack Cook ‘22, Matthew Kearney and Jupneet K. Singh - have been selected as Rhodes Scholars. “The selected students — 32 in total — will go to Oxford University in England next October to pursue wide-ranging graduate degrees," writes McCourt, "with two or three years of study free of charge.”