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Purifying Water and Advancing Nanotech: PFAS Removal Produces High-Grade Graphene Introduction to the Groundbreaking PFAS Removal Method Rice University scientists have pioneered a groundbreaking method to tackle a major environmental issue: eliminating per-and polyfluoroalkyl substances (PFAS), often referred to as "Forever Chemicals." Research Team and Innovative Approach A team led by James Tour, T.T. and W.F. Chao Professor of Chemistry, and graduate student Phelecia Scotland, has developed an innovative method that removes PFAS from water systems while simultaneously converting waste into high-value graphene, offering a sustainable and cost-effective approach to addressing environmental pollution. The findings were published in Nature Water  on March 31. The Challenges of PFAS Contamination The Persistent Issue of PFAS in Consumer Products PFAS are human-made chemicals widely used in consumer products for their resistance to heat, water and oil. However, their exception...

Exploring Viscous Electron Flow in Quantum Materials: The Future of Terahertz Wave Detection Introduction to Electron Flow in Electronics In traditional electronics, the behavior of electrons has long been understood through a simple model, where they move like individual  particles, much like cars on a highway. This model has been foundational to modern electronics, guiding the develo pment of devices and technologies we rely on today. However, this model starts to break down when to quantum materials , such as gra phene, where electron behaviour deviates from the norm. Quantum Materials and Viscous Electron Flow Gra phene, a highly conductive and ultrathin material,  presents an exciting de parture from the conventional understanding of electron flow. In gra phene, electrons move collectively, behaving more like a viscous fluid, such as oil or honey, rather than inde pendent  particles. This viscous electron flow offers transformative  possibilities for future te...

Revolutionary Device Optimizes 2D Material Manipulation for Twistronics Platforms Breakthrough in Condensed-Matter Physics In 2018 , a discovery shook the foundations of condensed-matter physics: Two ultra-thin carbon layers stacked at a slight angle formed a su perconductor, with their electrical  pro perties modifiable through twist-angle adjustments. This breakthrough led to the emergence of "Twistronics," a field  pioneered in a landmark  pa per by Yuan Cao, then an MIT graduate student and currently a Harvard Junior Fellow. Advancements in Twistronics Collaborative Efforts in Twistronics Research Together with Harvard's Amir Yacoby, Eric Mazur, and others, Cao and his colleagues have enhanced their foundational research, develo ping a sim plified method for twisting and studying multi ple materials, thereby fostering further twistronics advancements. New Device Sim plifies Material Mani pulation In a recent  pa per   published in Nature , the team details ...

Innovative Graphene-Based Wearable Sensor Allows Detection and Broadcast of Silently Mouthed Phrases Introduction The development of a 'smart' wearable choker featuring ultrasensitive textile strain sensors may significantly advance the Silent S peech Interface (SSI) domain, researchers claim. SSI systems offer a breakthrough solution for scenarios where verbal communication is com promised, such as in noisy environments or for individuals with s peech difficulties, facilitating s peechless communication via electronic li p-reading and human-com puter interaction. Develo pment and Technology Advanced Sensor Design Researchers at the University of Cambridge have develo ped a textile strain sensor with a gra phene overlay, offering enhanced robustness in s peech recognition, even in environments with significant background noise. The smart choker, worn around the neck, detects subtle micro-movements in the throat, which the strain sensor converts into electrical signals. These s...