Nanotechnology World

In environmental technology, self-cleaning surfaces could reduce maintenance costs and improve performance in sectors such as solar panels and water-repellent coatings. In the biomedical field, liquid-repellent materials could help develop medical devices that resist bacterial build-up, improving hygiene and patient safety.

Photonic time crystals represent a unique class of optical materials. Unlike traditional crystals, which have spatially repeating structures, photonic time crystals remain uniform in space but exhibit a periodic oscillation in time. This distinctive quality creates “momentum band gaps,” or unusual states where light pauses inside the crystal while its intensity grows exponentially over time. To grasp the peculiarity of light’s interaction within a photonic time crystal, imagine light traversing a medium that switches between air and water quadrillions of times per second –– a remarkable phenomenon that challenges our conventional understanding of optics. One potential application for the photonic time crystals is in nanosensing.

The research team sought to find better methods for making hydrogenated quantum diamond with the NV centers intact. “We’re writing a recipe book and characterizing different ways of properly hydrogenating diamond surfaces so that we understand how to do this better for a number of applications,” said Daniel McCloskey, the first author of the paper and a researcher at the School of Physics at the University of Melbourne.

Using muon spin rotation at the Swiss Muon Source SmS, researchers at PSI have discovered that a quantum phenomenon known as time-reversal symmetry breaking occurs at the surface of the Kagome superconductor RbV₃Sb₅ at temperatures as high as 175 K. This sets a new record for the temperature at which time-reversal symmetry breaking is observed among Kagome systems.

Researchers at Chalmers University of Technology in Sweden and at the University of Magdeburg in Germany have developed a novel type of nanomechanical resonator that combines two important features: high mechanical quality and piezoelectricity. This development could open doors to new possibilities in quantum sensing technologies.

Researchers from Lawrence Livermore National Laboratory (LLNL), Ruhr University Bochum and other international collaborators have provided the first demonstration of how iron atoms, when introduced into titanium, undergo a GB transition. During their study, the researchers observed that the iron atoms segregate (concentrate) to form quasicrystalline-like structures (those with patterns that are ordered but not periodic) at the interface. This work is described in a recent issue of Science.

Successful development of a perfect diamagnetic conducting polymer. The discovery of perfect diamagnetism in polyaniline represents a unique phenomenon not observed in conventional organic or inorganic conductive materials. It is plausible that an unconventional mechanism of perfect diamagnetism is at play, potentially leading to novel advancements in the field of conductive polymers.

Off the Rack, On the Grid: MXene Nanomaterials Enable Wireless Charging in Textiles: The next step for fully integrated textile-based electronics to make their way from the lab to the wardrobe is figuring out how to power the garment gizmos without unfashionably toting around a solid battery. Researchers from Drexel University, the University of Pennsylvania, and Accenture Labs in California have taken a new approach to the challenge by building a full textile energy grid that can be wirelessly charged. In their recent study, the team reported that it can power textile devices, including a warming element and environmental sensors that transmit data in real-time.

Electrons spin even without an electric charge and this motion in condensed matter constitutes spin current, which is attracting a great deal of attention for next-generation technology such as memory devices. An Osaka Metropolitan University-led research group has been able to gain further insight into this important topic in the field of spintronics.

Key findings from the research highlight the complexities of defect classification. The study revealed that defects in materials such as copper and gold exhibit different behaviors compared to those in palladium. This distinction underscores the need for specialized analytical models to accurately study these materials under radiation.

The researchers achieved a 50MSpectra/s (megaspectra per second) measurement rate, a 100-fold increase compared to the fastest measurement of 50kSpectra/s (kilospectra per second) so far. Ideguchi describes the wide-ranging potential of this improvement.

The researchers demonstrate a novel, extremely high-performance spectrometer that can measure light with a 0.05 nanometers wavelength resolution. That’s about 1.6 million times smaller than the width of a human hair, and the same resolution that can be achieved on a device 1,000 times bigger.

Researchers have achieved a significant breakthrough in the synthesis of carbon nanotubes (CNTs) by developing a novel catalyst that allows for precise control over their atomic arrangement, known as chirality. This advancement paves the way for the creation of innovative semiconductor devices, addressing a challenge that has remained unresolved for over 30 years.

Researchers have demonstrated in a Nature Communications article the integration of 2D polaritons with a detection system into the same 2D material. The integrated device enables, for the first time, spectrally resolved electrical detection of 2D polaritonic nanoresonators, and marks a significant step towards device miniaturization.

𝗢𝗻-𝗗𝗲𝗺𝗮𝗻𝗱 𝗩𝗶𝗱𝗲𝗼: 𝗤𝘂𝗮𝗻𝘁𝘂𝗺 𝗠𝗮𝘁𝗲𝗿𝗶𝗮𝗹𝘀 𝗧𝗵𝗿𝗼𝘂𝗴𝗵 𝘁𝗵𝗲 𝗡𝗮𝗻𝗼-𝗟𝗲𝗻𝘀 – 𝗕𝗲𝘆𝗼𝗻𝗱 𝘁𝗵𝗲 𝗗𝗶𝗳𝗳𝗿𝗮𝗰𝘁𝗶𝗼𝗻 𝗟𝗶𝗺𝗶𝘁 Explore how nano-spectroscopy is reshaping the study of quantum materials. In this on-demand session, Prof. Alexander McLeod presents cutting-edge research using nano-scale optical probes to examine phenomena like collective excitations in 2D materials and phase competition in correlated electron systems. This session highlights the integration of optical nano-probes with traditional optics, breaking free from the diffraction limit to enable unprecedented spatial and temperature resolution. 🔗 𝗪𝗮𝘁𝗰𝗵 𝘁𝗵𝗲 𝗼𝗻-𝗱𝗲𝗺𝗮𝗻𝗱 𝘃𝗶𝗱𝗲𝗼: https://lnkd.in/gEcCYvF5

The tongue comprises a graphene-based ion-sensitive field-effect transistor, or a conductive device that can detect chemical ions, linked to an artificial neural network, trained on various datasets. Critically, Das noted, the sensors are non-functionalized, meaning that one sensor can detect different types of chemicals, rather than having a specific sensor dedicated to each potential chemical.

Using peptides and a snippet of the large molecules in plastics, Northwestern University materials scientists have developed materials made of tiny, flexible nano-sized ribbons that can be charged just like a battery to store energy or record digital information.