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“This shows that we must factor the gut microbiome into our understanding of how nanomaterials affect the immune system,” said the paper’s corresponding author Bengt Fadeel, professor at the Institute of Environmental Medicine, Karolinska Institutet. “Our results are important for identifying the potential adverse effects of nanomaterial and mitigating or preventing such effects in new materials.”

ALSO READ: Researchers reveal tomatoes’ health benefits to gut microbes

Graphene is an extremely thin material, a million times thinner than a human hair. It comprises a single layer of carbon atoms and is stronger than steel yet flexible, transparent, and electrically conductive. This makes it extremely useful in a multitude of applications, including in “smart” textiles equipped with wearable electronics and as a component of composite materials, to enhance the strength and conductivity of existing materials.

Marvel at the tiny nanoscale structures emerging from research labs at Duke University and Arizona State University, and it’s easy to imagine you’re browsing a catalog of the world’s smallest pottery.

A new paper reveals some of the teams’ creations: itty-bitty vases, bowls, and hollow spheres, one hidden inside the other, like housewares for a Russian nesting doll.

But instead of making them from wood or clay, the researchers designed these objects out of threadlike molecules of DNA, bent and folded into complex three-dimensional objects with nanometer precision.

Do we live in a matrix? Is our universe a metaverse in the next universe up? What is the code of reality? Is this a simulated multiverse? Can we cheat death and live indefinitely long? These are some of the questions we discuss in this recent talk.

#CyberneticTheory #CyberneticSingularity #DigitalPhysics #CodeofReality #CyberneticTheoryofMind #EvolutionaryCybernetics #consciousness #PhilosophyofMind #OmegaPointCosmology #PhysicsofTime #SimulationTheory #GlobalMind #SyntellectHypothesis #AGI #VR #Metaverse #TechnologicalSingularity #Transhumanism #Posthumanism #CyberneticImmortality #SyntheticTelepathy #MindUploading #neurotechnology #biotechnology #nanotechnology #FermiParadox #DarkMatter #DarkEnergy #cybergods ​#cybernetics

A design for a nanopump that uses an alternating electric field could allow researchers greater control over nanoscale fluid flows.

Peripheral photoinhibition (PPI) direct laser writing (DLW) is a lithography technique used to fabricate intricate 3D nanostructures that are widely employed in photonics and electronics. PPI-DLW uses two beams, one to excite the substrate and cause polymerization and the other to inhibit and quench the excitation at the edges. The capacity is limited in some systems, which can be improved through multifocal arrays. However, computing these beams is both time-and memory-intensive.

Recently, a group of researchers from Zhejiang University developed a parallel peripheral-photoinhibition lithography (P³L) system that can achieve higher efficiency nanoscale fabrication. Their work is published in Advanced Photonics

“The P³L system uses two channels, which allows the execution of different printing tasks and permits the system to fabricate highly complex structures with different periodicities,” says senior author Xu Liu.

Transhumanism advocates the use of current and emerging technologies such as genetic engineering, artificial intelligence, and nanotechnology, to augment human capabilities, enhance longevity, and improve cognition. The term “designer baby” refers to a child who would develop from an embryo or sperm or egg that had been genetically altered. Is there a covert political agenda behind this allegedly altruistic scientific movement?

Robert Sepehr is an anthropologist and author.
(books also available through other book outlets)
http://amazon.com/Robert-Sepehr/e/B00XTAB1YC/

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It takes chemist Liaisan Khasanova less than a minute to turn an ordinary silica glass tube into a printing nozzle for a very special 3D printer. The chemist inserts the capillary tube—which is just one millimeter thick—into a blue device, closes the flap and presses a button. After a few seconds there is a loud bang and the nozzle is ready for use.

“A laser beam inside the device heats up the tube and pulls it apart. Then we suddenly increase the tensile force so that the glass breaks in the middle and a very sharp tip forms,” explains Khasanova, who is working on her Ph.D. in chemistry in the Electrochemical Nanotechnology Group at the University of Oldenburg, Germany.

Khasanova and her colleagues need the minuscule nozzles to print incredibly tiny three-dimensional metallic structures. This means the nozzles’ openings must be equally tiny—in some cases so small that only a single molecule can squeeze through. “We are trying to take 3D printing to its technological limits,” says Dr. Dmitry Momotenko, who leads the junior research group at the Institute of Chemistry. His goal: “We want to assemble objects atom by atom.”

Lawrence Livermore National Laboratory (LLNL) scientists have created vertically aligned single-walled carbon nanotubes on metal foils that could be a boon for energy storage and the electronics industry.

Vertically aligned carbon nanotubes (VACNTs) have exceptional mechanical, electrical and transport properties in addition to an aligned architecture, which is key for applications such as membrane separation, thermal management, fiber spinning, electronic interconnects and energy storage.

To date, widespread integration of VACNTs into next-generation technologies is thwarted by a lack of compatible, economic, mass-production capabilities. High-quality VACNTs are typically made on substrates such as silicon (Si) or quartz wafers that are rigid, expensive and electrically insulating.

Experiments suggest that hydrogen bonding explains why a wet surface can have nearly twice as much friction as a dry surface.

A wet floor poses a risk for slipping, but in certain cases, water added to a surface can increase friction. Researchers have now found that this phenomenon is partly explained by hydrogen bonds between the water and the surface, an effect that was not previously thought to play an important role [1]. The team reached this conclusion by studying the friction between two silicon surfaces under a range of wetness conditions. The researchers showed that heavy water produces greater friction than normal water—evidence that hydrogen bonding has an influence. The results could lead to a deeper understanding of the effects of humidity on friction.

The earliest friction studies looked at relatively large objects, such as a wood block sliding down an inclined surface. More recent efforts have focused on the nanoscale, exploring the friction forces on needle-like probes. These latter experiments have identified the friction mechanisms that operate at a single microscopic bump, or “asperity,” on a surface. But a missing piece is how to relate the friction at nanoscales to that at macroscales, says Liang Peng from the University of Amsterdam.