Tag

Plasmon

All articles tagged with #plasmon

Light-Activated Molecular Jackhammers Physically Tear Cancer Cells in Lab
science5 days ago

Light-Activated Molecular Jackhammers Physically Tear Cancer Cells in Lab

Researchers have devised a liquidless “molecular jackhammer” approach that uses aminocyanine molecules activated by near-infrared light to mechanically tear apart cancer cell membranes. In lab cultures, the method achieved about 99% cancer cell destruction, and in mouse melanoma models some animals became cancer-free. Since the initial Nature Chemistry report in 2023, follow-up work in Advanced Science (2024) has explored many variants to target different cancers and improve tissue reach with near-infrared light. The technique is still early—human trials have not begun, safety and delivery in humans remain to be established, and although the approach may reduce resistance risks due to its mechanical action, translating findings from cells and animals to patients will be challenging.

Direct THz Plasmon Imaging Reveals 2D Superconducting Superfluid
science5 months ago

Direct THz Plasmon Imaging Reveals 2D Superconducting Superfluid

Researchers used near-field terahertz spectroscopy with a spintronic THz emitter to image a below-gap, two-dimensional superfluid plasmon in few-layer Bi2Sr2CaCu2O8+x. The resonance, observed only in the superconducting phase and absent in bulk samples, was mapped for its dispersion and geometric anisotropy, providing a direct, spatially resolved view of momentum- and frequency-dependent 2D superconductivity and the superfluid stiffness within the CuO2 planes.

Unveiling the Enigmatic 'Demon Particle': A Breakthrough in Scientific Understanding
science2 years ago

Unveiling the Enigmatic 'Demon Particle': A Breakthrough in Scientific Understanding

Scientists have discovered a particle known as the "Demon Particle" that could revolutionize our understanding of superconductors and potentially lead to the development of room-temperature superconductors. Superconductors are materials that have zero electrical resistance, but they currently require extreme cooling to achieve this state. The Demon Particle, a massless plasmon, could help electrons flow through materials effortlessly, allowing electricity to flow indefinitely without resistance. The discovery of this particle provides valuable insight into the behavior of superconductors and brings us closer to the possibility of practical applications in energy generation.