It has been more than 50 years since the elucidation of the structure of double-helical DNA.
Despite active research and progress in DNA biology and biochemistry, much remains to be …

Thin polymer films may undergo a wide variety of elastic instabilities that include global
buckling modes, wrinkling and creasing of surfaces, and snap** transitions. Traditionally …

Mechanical instabilities in soft materials, specifically wrinkling, have led to the formation of
unique surface patterns for a wide range of applications that are related to surface …

When a block of an elastomer is bent, the compressed surface may form a crease. The
critical strain for creasing measured experimentally is known to disagree with that predicted …

Sulci are localized furrows on the surface of soft materials that form by a compression-
induced instability. We unfold this instability by breaking its natural scale and translation …

The creasing instability of elastomer films under compression is studied by a combination of
experiment and numerical simulation. Experimentally, we attach a stress-free film on a much …

We uncover how nonlinearities dramatically alter the buckling of elastic beams. First, we
show experimentally that sufficiently wide ordinary elastic beams and specifically designed …

We investigated solvent induced transition of surface instability from wrinkles to creases in
poly (2-hydroxyethyl methacrylate)(PHEMA) gels with depth-wise crosslinking gradients …

We report a new type of instability in a substrate-bonded elastic polymer subject to an
ultrahigh electric field. Once the electric field reaches a critical value, the initially flat surface …

A hydrogel consists of a cross-linked polymer network and solvent molecules. Depending on
its chemical and mechanical environment, the polymer network may undergo enormous …