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Why deep freezing iron-based materials makes them both magnetic and superconducting

Biopolymer-based electrolyte for the dream of zero-pollution battery

In a paper published in NANO, researchers from Guizhou Meiling Power Sources Co., Ltd., China have reviewed the recent progress in biopolymer-based electrolyte. The biopolymer materials with unique characteristics including water solubility, film-forming capability and adhesive property played a key role in the design of zero pollution lithium battery. The biopolymers mentioned in this review were polysaccharide, protein, natural rubber and other polymers.

Self-aware materials build the foundation for living structures

 E-Mail IMAGE: An illustration of the novel self-aware metamaterial system as used in a coronary artery stent. The design can sense restenosis when used in a stent, and the same design can. view more  Credit: iSMaRT Lab From the biggest bridges to the smallest medical implants, sensors are everywhere, and for good reason: The ability to sense and monitor changes before they become problems can be both cost-saving and life-saving. To better address these potential threats, the Intelligent Structural Monitoring and Response Testing (iSMaRT) Lab at the University of Pittsburgh Swanson School of Engineering has designed a new class of materials that are both sensing mediums and nanogenerators, and are poised to revolutionize the multifunctional material technology big and small.

World s smallest, best acoustic amplifier emerges from 50-year-old hypothesis

 E-Mail IMAGE: Scientists Matt Eichenfield, left, and Lisa Hackett led the team at Sandia National Laboratories that created the world s smallest and best acoustic amplifier. view more  Credit: Bret Latter, Sandia National Laboratories ALBUQUERQUE, N.M. Scientists at Sandia National Laboratories have built the world s smallest and best acoustic amplifier. And they did it using a concept that was all but abandoned for almost 50 years. According to a paper published May 13 in Nature Communications, the device is more than 10 times more effective than the earlier versions. The design and future research directions hold promise for smaller wireless technology. Modern cell phones are packed with radios to send and receive phone calls, text messages and high-speed data. The more radios in a device, the more it can do. While most radio components, including amplifiers, are electronic, they can potentially be made smaller and better as acoustic devices. This means they woul

New Swiss Army knife cleans up water pollution

Phosphate Elimination and Recovery Lightweight (PEARL) membrane, a porous nanocomposite substrate, selectively sequesters up to 99% of phosphate ions from polluted water. Tunable membrane will address other environmental challenges through incorporation of specific nanomaterials. New tech meets need for sustainable, scalable and cost-effective solution that works outside the lab.

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