115 citations · 382 across the 15 of their papers we have counts for
16 papers
Surface wakes on ultra-soft solids
Aditi Chakrabarti, Divya Jaganathan, Robert Haussman +1
We explore the dynamical response of the free surface of an ultra-soft solid driven by a localized moving pressure disturbance. Experiments reveal a steady V-shaped wake analogous…
Instability-induced patterning of a jelling jet
Aditi Chakrabarti, Salem Al-Mosleh, L. Mahadevan
When a thin stream of aqueous sodium alginate is extruded into a reacting calcium chloride bath, it polymerizes into a soft elastic tube that spontaneously forms helical coils due…
Self-excited motions of volatile drops on swellable sheets
Aditi Chakrabarti, Gary P. T. Choi, L. Mahadevan
When a volatile droplet is deposited on a floating swellable sheet, it becomes asymmetric, lobed and mobile. We describe and quantify this phenomena that involves nonequilibrium sw…
Elastowetting of Soft Hydrogel Spheres
Aditi Chakrabarti, Amir Porat, Elie Raphaël +2
When a soft hydrogel sphere is placed on a rigid hydrophilic substrate, it undergoes arrested spreading by forming an axisymmetric foot near the contact line, while conserving its…
Soft Lithography using Nectar Droplets
Saheli Biswas, Aditi Chakrabarti, Antoine Chateauminois +3
In spite of significant advances in replication technologies, methods to produce well-defined three dimensional structures are still at its infancy. Such a limitation would be evid…
Elasto-buoyant heavy spheres: a unique way to test non-linear elasticity
Aditi Chakrabarti, Manoj K. Chaudhury, Serge Mora +1
Extra-large deformations in ultra-soft elastic materials are ubiquitous, yet systematic studies and methods to understand the mechanics of such huge strains are lacking. Here we in…
Generation of Motion of Drops with Interfacial Contact
Manoj K. Chaudhury, Aditi Chakrabarti, Susan Daniel
A liquid drop moves on a solid surface if it is subjected to a gradient of wettability or temperature. However, the pinning defects on the surface manifested in terms of a wetting…
Adhesion Induced Instabilities and Pattern Formation in Thin Films of Elastomers and Gels
Manoj K. Chaudhury, Aditi Chakrabarti, Animangsu Ghatak
A hydrostatically stressed soft elastic film circumvents the imposed constraint by undergoing a morphological instability, the wavelength of which is dictated by the minimization o…
Elastic Cheerios effect: self-assembly of cylinders on a soft solid
Aditi Chakrabarti, Louis Ryan, Manoj K. Chaudhury +1
A rigid cylinder placed on a soft gel deforms its surface. When multiple cylinders are placed on the surface, they interact with each other via the topography of the deformed gel w…
Wetting and phase separation in soft adhesion
K. E. Jensen, R. Sarfati, R. W. Style +4
In the classic theory of solid adhesion, surface energy drives deformation to increase contact area while bulk elasticity opposes it. Recently, solid surface stress has been shown…
Coalescence of Drops Near A Hydrophilic Boundary Leads to Long Range Directed Motion
Manoj K. Chaudhury, Aditi Chakrabarti, Tapasya Tibrewal
A new mechanism for the passive removal of drop on a horizontal surface is described that does not require pre-fabrication of a surface energy gradient. The method relies upon the…
Vibrations of Sessile Drops of Soft Hydrogels
Aditi Chakrabarti, Manoj K. Chaudhury
Sessile drops of soft hydrogels were vibrated vertically by subjecting them to a mechanically induced Gaussian white noise. Power spectra of the surface fluctuation of the gel allo…
Attraction of Meso-Scale Objects on the Surface of a Thin Elastic Film Supported on a Liquid
Aditi Chakrabarti, Manoj K. Chaudhury
We study the interaction of two parallel rigid cylinders on the surface of a thin elastic film supported on a pool of liquid. The excess energy of the surface due to the curvature…
Elasto-capillary interaction of particles on the surfaces of ultra-soft gels: a novel route to study self-assembly and soft lubrication
Aditi Chakrabarti, Manoj K. Chaudhury
We study the interaction of small hydrophobic particles on the surface of an ultra-soft elastic gel, in which a small amount of elasticity of the medium balances the weights of the…
Surface Folding Induced Attraction and Motion of Particles in a Soft Elastic Gel: Cooperative Effects of Surface Tension, Elasticity and Gravity
Aditi Chakrabarti, Manoj K. Chaudhury
We report, for the first time, some experimental observations regarding a new type of long range interaction between rigid particles that prevails when they are suspended in an sof…
Direct Measurement of the Surface Tension of a Soft Elastic Hydrogel: Exploration of Elasto-Capillary Instability in Adhesion
Aditi Chakrabarti, Manoj K. Chaudhury
An adhesively stressed thin film of a soft hydrogel confined between two rigid flat substrates auto-roughens with its dominant wavelength exhibiting pronounced dependence on the fi…