Humans rely increasingly on sensors to address grand challenges and to improve quality of
life in the era of digitalization and big data. For ubiquitous sensing, flexible sensors are …

In the era of Internet-of-things, many things can stay connected; however, biological
systems, including those necessary for human health, remain unable to stay connected to …

Stretchable ionic skins are intriguing in mimicking the versatile sensations of natural skins.
However, for their applications in advanced electronics, good elastic recovery, self-healing …

Modeling of heterogeneous materials and media is a problem of fundamental importance to
a wide class of phenomena and systems, ranging from condensed matter physics, soft …

Stimuli-responsive hydrogels have large deformability but—when applied as actuators,
smart switch, and artificial muscles—suffer from low work density due to low deliverable …

Wireless power transfer can significantly extend the application range and service life of
implantable medical devices, such as pacemakers, neurostimulators, and vascular …

Nature has been inspiring scientists to fabricate impact protective materials for applications
in various aspects. However, it is still challenging to integrate flexible, stiffness-changeable …

Soft and hard materials at interfaces exhibit mismatched behaviors, such as mismatched
chemical or biochemical reactivity, mechanical response, and environmental adaptability …

Living systems, including human beings, animals, and plants, display the power to self-heal
spontaneously after being damaged. The self-healing is usually selective, which means that …

We report a series of sponge-like hydrogels prepared by polymerizing an aqueous solution
of methacrylic acid (MAAc) in the presence of N, N, N′, N′-tetramethylethylenediamine …