650 citations · 1.1k across the 20 of their papers we have counts for
20 papers
De novo emergence of metabolically active protocells
Nayan Chakraborty, Shashi Thutupalli
A continuous route from a disordered soup of simple chemical feedstocks to a functional protocell -- a compartment that metabolizes, grows, and propagates -- remains elusive. Here,…
Explosive dispersal of non-motile microbes through metabolic buoyancy
Jimreeves David, Shashi Thutupalli
For non-motile microorganisms, spatial expansion in quiescent fluids is presumed to be limited by diffusion. We report that microbial colonies can explosively circumvent this const…
Adaptation to extreme stress under the growth-survival fitness trade-off
Nandita Chaturvedi, Charuhansini Tvishamayi, Shashi Thutupalli
Microbial adaptation to extreme stress, such as starvation, antimicrobial exposure, or freezing often reveals fundamental trade-offs between survival and proliferation. Understandi…
Temperature switchable self-propulsion activity of liquid crystalline microdroplets
Manoj Kumar, Siddharth Sane, Aniruddh Murali +1
We report on a switchable emulsion droplet microswimmer by utilizing a temperature-dependent transition of the droplet phase. The droplets, made from a liquid crystalline (LC) smec…
Rigid flocks, undulatory gaits, and chiral foldamers in a chemically active polymer
Arvin Gopal Subramaniam, Manoj Kumar, Shashi Thutupalli +1
Active matter systems - such as a collection of active colloidal particles - operate far from equilibrium with complex inter-particle interactions that govern their collective dyna…
Emergent dynamics due to chemo-hydrodynamic self-interactions in active polymers
Manoj Kumar, Aniruddh Murali, Arvin Gopal Subramaniam +2
The field of synthetic active matter has, thus far, been led by efforts to create point-like, isolated (yet interacting) self-propelled objects (\emph{e.g.} colloids, droplets, mic…
Conditions for Darwinian evolution in compartmentalized autocatalytic reaction networks
Yoshiya J. Matsubara, Sandeep Ameta, Shashi Thutupalli +2
The first forms of life likely consisted of protocells endowed with metabolism, growth, and division. Such systems may have evolved due to variation and heredity in their chemical…
Dynamical phases in growing populations: understanding recovery from bottlenecks
Emanuele Crosato, Jeffrey N. Philippson, Shashi Thutupalli +1
Since steep declines in a population's size also typically alter its composition, population bottlenecks are considered highly important for evolution. However, despite such signif…
Active ploughing through a compressible viscoelastic fluid: Unjamming and emergent nonreciprocity
Jyoti Prasad Banerjee, Rituparno Mandal, Deb Sankar Banerjee +2
A dilute suspension of active Brownian particles in a dense compressible viscoelastic fluid, forms a natural setting to study the emergence of nonreciprocity during a dynamical pha…
Whirligig Beetles as Corralled Active Brownian Particles
Harvey L. Devereux, Colin R. Twomey, Matthew S. Turner +1
We study the collective dynamics of groups of whirligig beetles Dineutus discolor (Coleoptera: Gyrinidae) swimming freely on the surface of water. We extract individual trajectorie…
Harnessing confinement and driving to tune active particle dynamics
Aniruddh Murali, Pritha Dolai, Ashwini Krishna +2
A distinguishing feature of active particles is the nature of the non-equilibrium noise driving their dynamics. Control of these noise properties is, therefore, of both fundamental…
Flow-induced phase separation of active particles is controlled by boundary conditions
Shashi Thutupalli, Delphine Geyer, Rajesh Singh +2
Active particles, including swimming microorganisms, autophoretic colloids and droplets, are known to self-organize into ordered structures at fluid-solid boundaries. The entrainme…
A self-driven phase transition drives Myxococcus xanthus fruiting body formation
Guannan Liu, Adam Patch, Fatmagul Bahar +5
Combining high-resolution single cell tracking experiments with numerical simulations, we show that starvation-induced fruiting body (FB) formation in Myxococcus xanthus is a phase…
Intermittent chaotic chimeras for coupled rotators
Simona Olmi, Erik A. Martens, Shashi Thutupalli +1
Two symmetrically coupled populations of N oscillators with inertia display chaotic solutions with broken symmetry similar to experimental observations with mechanical pendula.…
Phase transitions during fruiting body formation in Myxococcus xanthus
Shashi Thutupalli, Mingzhai Sun, Filiz Bunyak +2
The formation of a collectively moving group benefits individuals within a population in a variety of ways such as ultra-sensitivity to perturbation, collective modes of feeding, a…
Mode Coupling of Phonons in a Dense One-Dimensional Microfluidic Crystal
Jean-Baptiste Fleury, Ulf D Schiller, Shashi Thutupalli +2
Long-living coupled transverse and longitudinal phonon modes are explored in dense and regular arrangements of flat microfluidic droplets. The collective oscillations are driven by…
Chimera States in Mechanical Oscillator Networks
Erik Andreas Martens, Shashi Thutupalli, Antoine Fourrière +1
The synchronization of coupled oscillators is a fascinating manifestation of self-organization that nature employs to orchestrate essential processes of life, such as the beating o…
Oscillation patterns in active emulsion networks
Shashi Thutupalli, Stephan Herminghaus
We study water-in-oil emulsion droplets, running the Belousov-Zhabotinsky reaction, that form a new type of active matter unit. These droplets, stabilised by surfactants dispersed…
Simple model squirmers with tunable velocity
Shashi Thutupalli, Ralf Seemann, Stephan Herminghaus
We present a scheme of self-propelling liquid droplets which closely mimics the locomotion of some protozoal organisms, so-called squirmers. In contrast to other schemes proposed e…
Bilayer membranes in micro-fluidics: from gel emulsions to soft functional devices
Shashi Thutupalli, Stephan Herminghaus, Ralf Seemann
We outline a concept of self-assembled soft matter devices based on micro-fluidics, which use surfactant bilayer membranes as their main building blocks, arrested in geometric stru…