Search

A smart adhesive patch that wicks sweat away from electronics embedded in its centre offers comfortable and reliable sensing of the wearer’s biometrics or environment without the risk of perspiration damaging the devices.

A soft mesh microelectrode array can seamlessly integrate in developing brains, enabling long-term, stable mapping of how single-neuron activity and population dynamics emerge and evolve during brain development.

Inflatable balloon catheters are widely used in many surgical and diagnostic procedures. Such catheters have now been used as a platform for a collection of components including semiconductor devices, sensors and actuators, and these multifunctional catheters probed for their use in cardiac-related applications.

The authors find the coexistence of ferroelectric and antiferroelectric states induced by chiral degeneracy in helical magnetic order in trilayer NiI₂, along with the emergence of exotic magnetoelectric coupling.

Tools for cardiac physiological mapping are important for basic and clinical cardiac research. Here the authors use 3D printing to create a thin, elastic silicone sheath that fits tightly around the entire epicardium and contains sensors to measure a variety of physiological parameters of the beating heart ex vivo.

Fluorinated elastomers as photoresists in the fabrication of soft neural probes are used to enhance the spatiotemporal recording capability at single-neuron resolution within the central nervous system of rodents.

There is a need to further improve the efficacy of biodegradable wafers used in surgically treated brain tumors. Here, the authors report a flexible, biodegradable wireless device capable of adhesion to surgical site for optimal drug delivery upon mild-thermic actuation and report therapeutic efficacy in mouse and canine tumor models.

Large scale culture of adherent cells would benefit from a platform for continuous monitoring and control of cell growth and culture conditions. Here the authors develop an integrated, smart cell culture platform where cells are grown on multiple layers of thin sensors that can be wirelessly integrated across several incubators.

Designing efficient sensing devices for ambulatory use remains a challenge. Here, the authors demonstrate heterogeneous serpentine ribbons enable a stretchable and robust interface between sub-micron thin graphene e-tattoos and thick and rigid printed circuit boards, which allows ambulatory electrodermal activity monitoring on the palm.

In an approach inspired by the functional and anatomical structure of fiddler crab eyes, an amphibious and panoramic artificial vision system can be created by integrating a microlens arrays with a flexible comb-shaped silicon photodiode array on a spherical structure.

Multiple interlayer exciton resonances in a MoSe₂/WSe₂ heterobilayer with a small twist angle are attributed to excitonic ground and excited states confined within the moiré potential.

By integrating a single monocentric lens with a hemispherical silicon nanorod photodiode array, a wide-field-of-view camera is created that offers low optical aberration, deep depth of field and simple visual accommodation.

Gold-doped graphene combined with a serpentine-shaped bilayer of gold mesh and polymeric microneedles form a wearable patch for sweat-based diabetes monitoring and feedback therapy.

A suite of flexible, integrated, high-index-contrast chalcogenide glass photonic devices, including waveguides, microdisk resonators, add–drop filters and photonic crystals, is reported. The devices are demonstrated to survive repeated bending to a submillimetre radius without any significant degradation in their optical performance.

Integration of diverse nanostructures allows the fabrication of a wearable system capable of storing data, performing diagnostics and delivering drugs.

Soft and flexible optoelectronic devices may provide effective routes toward retinal implants for enhanced visual functions. Here, the authors fabricate a curved array of flexible MoS₂-graphene photodetectors and demonstrate its potential application as ophthalmic imaging element in mouse models.

This protocol describes how to fabricate graphene electronic tattoos (GETs) that offer unique electromechanical properties. The GETs can be used for a variety of applications, including wearables, personalized biosensors and human–computer interfaces.

Amputees with prosthetic hands face challenges accomplishing ordinary tasks in daily life. An optimal set of materials, design layouts, and assembly schemes is presented for the construction of stretchable sensor circuits on an easy-to-wear rubber glove, allowing for the seamless integration with arbitrary prosthetic hands. A wristwatch unit provides the ability for both real-time display and post-analysis of the measured signals, enabling efficient interactions with the users. A precisely engineered soft packaging layer offers realistic human hand-like appearance, physical attributes, and warmth, thereby promoting its potential applications in more natural integration of prosthetic hand users into many social settings.

Recent developments in advanced semiconductor nanomaterials and methods for their assembly establish new, important capabilities in flexible and stretchable electronics and optoelectronics. This review describes the most successful materials, mechanics and manufacturing strategies, and illustrates their use in bio-integrated devices designed for basic measurements of cellular electrophysiology and multimodal sensing suitable for clinical applications. Opportunities span a variety of biomedical applications including skin-based, neural, and cardiovascular monitoring and therapy.