Mar 15, 2023 (Nanowerk Spotlight) Nucleic acids are becoming increasingly popular for assembling nanoscale structures, thanks to their programmable dimensionality and direct applications in the biological field. Despite the fact that DNA nanotechnology has been explored more deeply over a longer period of time, RNA nanotechnology offers complementary opportunities and...
Resilient bug-sized robots keep flying even after wing damage
Mar 15, 2023 (Nanowerk News) Bumblebees are clumsy fliers. It is estimated that a foraging bee bumps into a flower about once per second, which damages its wings over time. Yet despite having many tiny rips or holes in their wings, bumblebees can still fly. Aerial robots, on the other...
Novel tunable 2D nanosheets enable many semiconductor applications, ranging from electronics to photocatalysis
Mar 15, 2023 (Nanowerk News) Nanosheets, which include the well-known material graphene, are materials that possess nanoscale homogenous thicknesses, flat surfaces, and high crystallinity. Nanosheets have wide applications in photocatalysis, photoluminescence, and electronics. Recently, perovskites, which have semiconductor properties, have received attention in the scientific community as a promising material...
Designing more useful bacteria
Mar 15, 2023 (Nanowerk News) In a step forward for genetic engineering and synthetic biology, researchers have modified a strain of Escherichia coli bacteria to be immune to natural viral infections while also minimizing the potential for the bacteria or their modified genes to escape into the wild. The work...
DNA origami boosts electrochemical biosensor performance
Mar 14, 2023 (Nanowerk News) Electrochemical DNA biosensors hold significant promise for monitoring of various diseases. Overall, their detection applications are vast, from target DNA analytes such as bacterial genes and tumor sequences to clinically relevant concentrations of SARS CoV-2 biomarkers, for example. However, to achieve appropriate sensitivity and selectivity...
Researchers uncover the first bubble in an intergalactic stew
Mar 15, 2023 (Nanowerk News) An international team led by researchers at the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) have found the earliest evidence of parts of the universe that were heated to temperatures more characteristic to the intergalactic gas medium where most atoms...
3D-printed insoles measure sole pressure directly in the shoe
Mar 15, 2023 (Nanowerk News) Researchers at ETH Zurich, Empa and EPFL are developing a 3D-printed insole with integrated sensors that allows the pressure of the sole to be measured in the shoe and thus during any activity. This helps athletes or patients to determine performance and therapy progress. In...
Tracking lithiation with transmission electron microscopy
Mar 14, 2023 (Nanowerk News) In a paper published in SCIENCE CHINA Chemistry ("Tracking lithiation with transmission electron microscopy"), the research progress of transmission electron microscopy study on Li ion battery materials has been reviewed in three aspects: analytical TEM to directly identify Li ions, cryo-TEM technique to explore beam-sensitive...
3D printed nano optical security labels to identify counterfeit products
Mar 14, 2023 (Nanowerk News) Each year, an estimated two trillion dollars is lost globally due to counterfeit products ranging from jewelry to medicine. As current security labels and product authentication methods are rapidly becoming obsolete or easy to hack, there is a rising urgency for more secure anti- counterfeiting...
100-year old famous fluid dynamics relation breaks down completely inside carbon nanotube pores
Mar 14, 2023 (Nanowerk News) When it comes to studying particles in motion, experimentalists have followed a 100-year-old theory that claims the microscopic motion of a particle is determined by random collisions with molecules of the surrounding medium, regardless of the macroscopic forces that drive that motion. Scientists at Lawrence...