Adhesion-induced instabilities and pattern formation in thin films of elastomers and gels
A hydrostatically stressed soft elastic film circumvents the imposed constraint by undergoing
a morphological instability, the wavelength of which is dictated by the minimization of the …
a morphological instability, the wavelength of which is dictated by the minimization of the …
Direct measurement of the surface tension of a soft elastic hydrogel: exploration of elastocapillary instability in adhesion
A Chakrabarti, MK Chaudhury - Langmuir, 2013 - ACS Publications
An adhesively stressed thin film of a soft hydrogel confined between two rigid flat substrates
autoroughens with its dominant wavelength (λ) exhibiting pronounced dependence on the …
autoroughens with its dominant wavelength (λ) exhibiting pronounced dependence on the …
Biomimetic polymer adhesives
Nature is filled with various living organisms, ranging from micron scale fungi to large scale
vertebrates, which possess unique adhesion characteristics, including self-cleaning …
vertebrates, which possess unique adhesion characteristics, including self-cleaning …
Estimation of solid–liquid interfacial tension using curved surface of a soft solid
Unlike liquids, for crystalline solids the surface tension is known to be different from the
surface energy. However, the same cannot be said conclusively for amorphous materials …
surface energy. However, the same cannot be said conclusively for amorphous materials …
Control of adhesion via internally pressurized subsurface microchannels
EP Arul, A Ghatak - Langmuir, 2012 - ACS Publications
While pressure sensitive adhesives in general consist of a layer of viscoelastic glue
sandwiched between two adherents, we explore here the design of an adhesive embedded …
sandwiched between two adherents, we explore here the design of an adhesive embedded …
Elastocapillary interaction of particles on the surfaces of ultrasoft gels: A novel route to study self-assembly and soft lubrication
A Chakrabarti, MK Chaudhury - Langmuir, 2014 - ACS Publications
We study the interaction of small hydrophobic particles on the surface of an ultrasoft elastic
gel, in which a small amount of elasticity of the medium balances the weights of the particles …
gel, in which a small amount of elasticity of the medium balances the weights of the particles …
Surface folding-induced attraction and motion of particles in a soft elastic gel: Cooperative effects of surface tension, elasticity, and gravity
A Chakrabarti, MK Chaudhury - Langmuir, 2013 - ACS Publications
We report some experimental observations regarding a new type of long-range interaction
between rigid particles that prevails when they are suspended in an ultrasoft elastic gel. A …
between rigid particles that prevails when they are suspended in an ultrasoft elastic gel. A …
Peeling off an adhesive layer with spatially varying topography and shear modulus
A Ghatak - Physical Review E, 2014 - APS
Inspired by recent experiments on hierarchically structured adhesives, we analyze here the
effect of spatial variation in surface topography and shear modulus of an elastomeric …
effect of spatial variation in surface topography and shear modulus of an elastomeric …
Numerical investigation of micro-and nanochannel deformation due to discontinuous electroosmotic flow
JM de Rutte, KGH Janssen, NR Tas, JCT Eijkel… - Microfluidics and …, 2016 - Springer
Large pressures can induce detrimental deformation in micro-and nanofluidic channels.
Although this has been extensively studied for systems driven by pressure and/or capillary …
Although this has been extensively studied for systems driven by pressure and/or capillary …
A co-operative effect of closely spaced intruding objects puncturing into a soft solid
When two or more closely spaced indenters puncture a soft solid, the puncturing load
diminishes from that required when they are far apart. We have developed a method to …
diminishes from that required when they are far apart. We have developed a method to …