A full description of nanoscale thermal transport has defied understanding for decades. In a new study, researchers uncovered a regime of thermal transport near nanoscale structures, where counterintuitively, nanoscale hot spots cool more quickly when placed close together than when they are widely separated. The results suggest new approaches for addressing the significant challenge of heat management in nanosystems, with design implications for integrated circuits and other uses.
A group of researchers have managed to print and dry three-dimensional objects made entirely by cellulose for the first time with the help of a 3D-bioprinter. They also added carbon nanotubes to create electrically conductive material. The effect is that cellulose and other raw material based on wood will be able to compete with fossil-based plastics and metals in the on-going additive manufacturing revolution, which started with the introduction of the 3D-printer.
Someday, treating patients with nanorobots could become standard practice to deliver medicine specifically to parts of the body affected by disease. But merely injecting drug-loaded nanoparticles might not always be enough to get them where they need to go. Now scientists are reporting the development of new nanoswimmers that can move easily through body fluids to their targets.
Scientists have used a new scanning electron microscopy technique to resolve the unique atomic structure at the surface of a material. This new technique holds promise for the study of catalysis, corrosion and other critical chemical reactions.
Researchers have found an easy way to produce carbon nanoparticles that are small enough to evade the body’s immune system, reflect light in the near-infrared range for easy detection, and carry payloads of pharmaceutical drugs to targeted tissues. The new approach generates the particles in a few hours and uses only a handful of ingredients, including store-bought molasses.
Chemists have developed a major improvement to capture and retain energy from sunlight, where the stored energy can last dramatically longer than current solar technology allows — up to several weeks, instead of the microseconds found in today’s rooftop solar panels.
It’s possible to vary (even dramatically) the sliding properties of atoms on a surface by changing the size and “compression” of their aggregates, according to new research.
Scientists built nanoscale mirrors to trap light around atoms inside of diamond crystals. The mirrored cavities allow light to bounce back and forth up to 10,000 times, enhancing the normally weak interaction between light and the electronic spin states in the atoms. As a result, a 200-microsecond spin-coherence time was produced. The enhanced interactions and extended spin-coherence times are essential steps toward realizing quantum computing systems to solve some problems faster than conventional systems.
Scientists have developed a new technique to rapidly create multi-layered, self-assembled grids could transform the manufacture of high-tech coatings for anti-reflective surfaces, improved solar cells, and touchscreen electronics
Researchers have developed a new approach for forming 3-D shapes from flat, 2-D sheets of graphene, paving the way for future integrated systems of graphene-MEMS hybrid devices and flexible electronics.