Engineers have developed a new design strategy for metal alloy negative electrodes that could significantly improve the performance and durability of next-generation solid-state batteries. The work co...

Researchers developed a soft robotic skin that enables vine robots that are just a few millimeters wide to navigate convoluted paths and fragile environments.

Energy disorder is ubiquitous in chemistry and physics. It can suppress polariton delocalization by disrupting molecular coherence–limiting polariton-modified properties. We investigated how energy di...

Growing up in rural Lebanon, tinkering with cars and working the grape harvest gave professor Shadi Dayeh a hands-on foundation that now informs his innovations in brain mapping and potentially vision...

High-power pulsed laser-driven shock compression was conducted on [001]-oriented single-crystalline diamond specimens encapsulated in impedance-matche…

A simple yet powerful method to characterize how lithium deposits in lithium metal batteries could lead to the development of safer, longer-lasting and more energy dense batteries for electric vehicle...

Undergraduates from around the country recently gathered at the UC San Diego Qualcomm Institute to present the outcomes of their nanotechnology summer research projects.

We report the influence of vacancy point defects on the conductivity and piezoelectricity of hydroxyapatite (HAp) nanofibers. A combination of experimental techniques, including conductive atomic force microscopy, electrostatic force microscopy, and switching spectroscopy piezoresponse force microscopy, along with computational modeling, was employed to elucidate the conduction mechanisms and charge accumulation effects in HAp. Our findings demonstrate that oxygen and calcium vacancy defects play a crucial role in the conduction mechanism of HAp nanofibers, specifically through charge-trapping and detrapping processes, as well as in charge accumulation and the piezoelectric response. The Poole–Frenkel conduction mechanism was confirmed by fitting experimental current–voltage data to a theoretical model, revealing a dielectric constant consistent with previously reported theoretical values. These insights contribute to a deeper understanding of the role of point defects in the electrical and piezoelectric properties of HAp, which is essential for optimizing its performance in biomedical applications.

A virus that typically infects black-eyed peas is showing great promise as a low-cost, potent cancer immunotherapy—and researchers are uncovering why.

As waiting rooms fill up, doctors get increasingly burnt out, and surgeries take longer to schedule and more get cancelled, humanoid surgical robots offer a solution. That’s the argument that UC San D...

A new wearable wristband could significantly improve diabetes management by continuously tracking not only glucose but also other chemical and cardiovascular signals that influence disease progression...

A new tool allows researchers to probe the metabolic processes within the leaves, stems, and roots of a key citrus crop, the clementine. The big goal is to improve the yields, flavor and nutrition of ...

Engineers have achieved a long-sought milestone in photonics: creating tiny optical devices that are both highly sensitive and durable. This work could lead to a new generation of photonic devices tha...

A new cooling technology could significantly improve the energy efficiency of data centers and high-powered electronics while reducing water use associated with cooling. By passively removing heat thr...

A new study shows that drug treatment outcomes are significantly different for a type of heart valve disease based on how the disease progresses in males versus females. An AI-derived digital medicine...

What does it take to build a small timber bridge that can carry 1000 lbs of weight? Six teams of structural engineering master’s students got to find out during the final weeks of their Advanced Timbe...