RT @SutirthDey: Announcing the 9th Edition of the online "Biostatistics: A User's Perspective" course. This will be an intuitive understan….

RT @sayams: IISER Kolkata is starting a new 2-yr MS program in Sustainability Science. For details about the program and career prospects,….

RT @iiserkol: The New MS Programme in Sustainability Science offered by IISER Kolkata. For details, please visit .

RT @CheEnggIITB: Are you PhD? Passionate about sustainable soft material research? If yes, Prof. @GuruKumaraswamy group is willing host you….

RT @iitbombay: We invite all JEE (Advanced) 2025 candidates and their families for a special Open House. This online event will be held on….

The NPDF application portal is open. We invite PhDs passionate about sustainable soft materials to collaborate with the our group. We are working on a variety of exciting projects. If you'd like to write an NPDF proposal, I'm happy to discuss. Write to: guruswamy@iitb.ac.in

@iitbombay @tifr Excited to be the first article accepted to the @softmatter collection on Soft Matter Underpinning of Micro- and Nano-plastics. Collaboration with Shankar Ghosh, @tifr and @sanatkk, @columbia.Soft Matter, 2025, DOI:

@iitbombay @tifr What is the way out? We are now working on ways to capture the emitted micro and nanoparticles. Since these tyre wear nanoparticles hadn’t been observed earlier, we don’t know if existing methods are efficient at capturing these.

@iitbombay @tifr Regulation focused on PM10 or PM2.5 restricts the total weight of emitted particles. Even when nanoparticle numbers go up, they don’t change the total weight much due to their small size. The PM2.5 comes mostly from the larger microparticles that settle gravitationally.

@iitbombay @tifr Microparticles settle under gravity, but nanoparticles stay suspended in the air for a long, long time. Likely, we breathe in these particles. So, while EVs don’t generate CO2 by burning fuel, due to their heavy battery packs, they generate more tyre nanoparticle pollution

@iitbombay @tifr Nanoparticles do not show a well defined average size. The smaller the nanoparticles, the more numerous they are, described by a power law distribution. Heavier the vehicle or higher the speed, the more numerous the smaller nanoparticles (viz. the power law gets steeper)

@iitbombay @tifr Our most important finding: when tyres wear, micro- and nanoparticles form. Microparticles show a log-normal distribution, with a well defined peak size. This appears to be determined by the tyre material and the road surface (not so much the vehicle weight/ speed)

@iitbombay @tifr During the Covid lockdown, Vedant got special permission to go back and forth between @IITBombay and @TIFR. With Anit and Smita in Shankar’s group, he rigged up a controlled experiment, with a tyre running against a metal “road”

Little known fact: Road dust (tyre and brake wear particles, asphalt) is over 90% of manmade terrestrial particle pollution. My first MTech student at @iitbombay, Vedant Vashishtha, studied tyres wear out to form particles (co-advised by the brilliant Shankar Ghosh, @tifr).

Coverage by @amitabhsin in @IndianExpress of our @softmatter paper on microplastics from tyre wear .Tyres give off micro and nanoparticles. Many more nanoparticles form (and stay suspended) when vehicles are heavier and/or driven faster. .(1/9)

RT @iitbombay: A study by a team at IIT Bombay and their collaborators reveals how the majority of commercial use plastic degrades into mic….

RT @CheEnggIITB: How do micro/nano-plastics (MNP) form? Two papers from Guru's group, ChE, IITB .In landfill-like quiescent conditions, cry….

RT @CheEnggIITB: Read Prof Abhijit Majumder's comments on acceptance of New Approach Methodologies (NAM) in place of animal model experimen….

RT @CheEnggIITB: @iitbombay team consisting of third year students Aditya Amol Mahaldar, Aditya Pravin Parsekar and Pranjal Tandon won the….