For many breast cancer patients, the road to recovery may present hidden complications related to breast reconstruction following a mastectomy. The insertion of implants can lead to implant malposition, a condition that affects a significant number of patients even years after surgery. Now, the Yang lab and collaborators have used the principles of a papercutting … Read more
When a metacap “snaps”, it pops open and closed, pushing air back and forth. This snapping allows a soft robot to propel and grip without any electronics. The new ribbed metacaps permit unprecedented levels of control and speed, enabling robots delicate enough to gently grasp a ripe strawberry and powerful enough to swim through choppy, … Read more
The team’s work takes inspiration from kirigami, an East Asian papercutting art, to create a mathematically sound method of cutting and stacking flat materials into durable curved objects. The advance addresses a longstanding blind spot at the intersection of mechanical engineering and materials science: Hardwearing materials with high mechanical integrity lose strength when manipulated into … Read more
Most adhesives for wound dressings have either been too weak to keep wounds sealed, or too strong to be painlessly peeled off. An innovative adhesive for closing wounds is twice as strong as a commonly used commercial product — even to hairy skin —but lifts off when submerged in water. More
The University of Pennsylvania will receive $2.4M in funding from the US Department of Energy Advanced Research Projects Agency-Energy (ARPA-E) HESTIA program, which prioritizes overcoming barriers associated with carbon-storing buildings, including scarce, expensive and geographically limited building materials. In collaboration with Texas A&M University, The City College of New York, KieranTimberlake, and Sika, we will … Read more
Autonomy is crucial for soft robotics that are constructed of soft materials. It remains challenging to create autonomous soft robots that can intelligently interact with and adapt to changing environments without external controls. Prof. Jin Yin’s lab from North Carolina State University collaborated with Prof. Yang to develop such kind of autonomous soft robots by … Read more
The Yang lab and collaborators transform a two-dimension sheets made from liquid crystal elastomers into complex three-dimensional geometries, such as a human face, with heat. This work outlines an explicit protocol for preprogramming any desired 3D shape into a 2D liquid crystal elastomer (LCE) sheet. Namely, given an arbitrary 3D design, we show how to … Read more
Wearable sensors allow for continuous and real-time monitoring of the human health and potential environmental hazards such as ultraviolet (UV) radiation on the daily basis. Here, textile-based wearable UV indicators are fabricated, which can show easily recognizable color patterns depending on UV irradiation intensity over time. The sensors are prepared by templating electrospun polycaprolactone fibers … Read more
Stimulus-responsive soft materials that can enable folding of a 2D sheet into a 3D object have potential significant applications, including wearable electronics, biomimetic machines, soft robotics, drug delivery, biomedical devices, and responsive buildings. The responses can be tuned by the materials chemistry, composition, and type of external stimulus; the direction and magnitude of the deformation … Read more
Commonplace as they are, windows are an important piece of technology. Beyond architectural aesthetics, a building’s ecological footprint depends heavily on how its internal light and heat are managed. With this in mind, the Yang lab develop smart windows by infusing a clear silicone sheet with silica nanoparticles. The composite film is transparent in the … Read more
