Nitin Kumar
@AllLivingActive
Followers
380
Following
425
Media
24
Statuses
151
Living Active Soft Matter, Associate Professor, Physics Department, IIT Bombay (Active and Living Matter Lab)
Mumbai, India
Joined August 2018
(1/6) 📢Excited to share our latest work in collaboration with @harshIITMandi's group at IIT Mandi on an artificial robotic system 🤖, in experiment and theory, mimicking run-and-tumble (RT) motion seen in microorganisms 🦠. 🧵⏬@Somnath73831947 @iitbombay.
4
1
31
For the physics behind this, see our @PRX_Life paper from last year: We used robots to model these navigation trajectories.
journals.aps.org
Using a light-controlled robot as a model forager, a first-passage-based framework accurately captures quantitative features of homing, namely the ability for animals to return home from unfamiliar...
A female falcon was equipped with a GPS tracker during her journey from South Africa to Finland. She covered approximately 230 km per day, flying in a straight line across African lands until she reached the desert in the north. She then followed the path of the Nile River over
2
1
18
RT @GuruKumaraswamy: Coverage by @amitabhsin in @IndianExpress of our @softmatter paper on microplastics from tyre wear .Tyres give off mic….
0
7
0
A truly refreshing read! Thanks @Pavan_KumarGV.
Today, I complete 15 years as a faculty member at #IISERPune. I have attempted to put together a list (based on my blogs) of some lessons that I have learnt so far. A disclaimer to note is that this list is by no means a comprehensive one, but a text of self-reflection from my.
1
0
0
Preprint alert 📣! We provide an experimental protocol to align clay nanotubes over the entire dried deposit in spite of huge size-polydispersity. Experiments by my postdoc Arun. In collaboration with @PrasherM. Supported by @iitbombay.@IndiaDST.
0
1
5
Congratulations Margaret @squishycell1 🎉💐.
We are thrilled to announce the election of 120 members and 30 international members to the National Academy of Sciences in recognition of their distinguished and continued achievements in original research. Congratulations to our new #NASmembers and welcome to the Academy! 🎊
0
0
2
RT @PrinSciAdvOff: Prof. @AjaySoodIISc, Principal Scientific Adviser to the Government of India (@PrinSciAdvGoI), has been elected as an In….
0
12
0
RT @Physics_at_IISc: With great pride, we announce that Prof. Sriram Ramaswamy, who is also a J.C. Bose National Fellow @Physics_at_IISc, @….
0
46
0
(6/6) We quantify RT motion in terms of tumbling rate and show its systematic variation as a function of various experimental parameters. Our theoretical model reproduces experiments and elucidates the physics of underlying phenomena. More details in the preprint. Thank you!😃.
0
0
3
(5/6) Key to this RT motion is our robot's rolling-without-slipping, inertia-less active motion, which is expected in microswimmers. To confirm this, we used a slippery surface coated with coconut oil and found that the sudden tumble events smoothened out and vanished completely
1
0
4
(4/6) When robots are programmed to execute overdamped active Brownian (AB) motion, voila, RT motion emerges, featuring abrupt tumbling events and exponential run-time distributions.
1
0
3
(3/6) Inspired by that, we create a robotic organism: two self-propelled robots connected by a rigid rod. Here, robots mimic flagella, and the rod acts as the organism's body. The rod rotates freely in a plane, with its ends pivoted at mirror-symmetric points on each robot.
1
0
1
(2/6) Microswimmers like bacteria and algae use active units, called cilia or flagella, to attain motility in a low Re environment. Flagella undergo a series of synchronous and asynchronous beating cycles to produce straight trajectories (runs) and sudden random turns (tumbles).
1
0
2
A short video highlighting our research on the physics of homing behavior in animals, recently published in PRX Life journal.
2
2
22
As part of the institute's outreach program #TechConnect #TechFest2024, our group showcased a hands-on experience with our active robots, demonstrating how we engineer them to uncover the physics of #LivingMatter and #ActiveMatter @iitbombay
1
0
17
RT @RaushanKant7: Thrilled to share my latest work: ."Bulk Condensation by an Active Interface" .Published in Phys. Rev. Lett. Read it he….
journals.aps.org
We present experiments, supported by mechanically detailed simulations, establishing bulk condensation of a hard-bead fluid by a tiny population of orientable motile grains that self-assembles into a...
0
4
0
RT @HanEndao: My lab has multiple PhD and postdoc positions available. Please help spread the word. Thank you!
0
14
0
Glad to be back in the US @KITP_UCSB for attending an awesome conference on active solids. Looking forward to an exciting week ahead.
Welcome to The Many Faces of Active Mechanics (#activesolids-c24) conference at #KITP!. Learn more at: Stay tuned for recorded talks at:
0
0
19
Our latest work is reported in The Hindu. Experiments performed by my PhD student @Somnath73831947 and wonderful and fruitful collaboration with our theory friends @harshIITMandi and @arnab_non_eqm.
Researchers at IIT Bombay are using robots to understand how animals find their way back home from unfamiliar places, a skill called homing, @purnima_sah_ reports.
2
3
36