Nanotechnology News and Discussions

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Yuli Ban
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And remember my friend, future events such as these will affect you in the future
Nanotechandmorefuture
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Ah my favorite topic! :D The advances here will definitely help towards the predictions on the timeline of synthetic humans. Between this and other cool aspects like nanotech clothing predictions it should be fun to see how it progresses as time goes on here.
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caltrek
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Tiny Robots Inspired by Starfish Larva Move Courtesy of Ultrasound
by Brian Heater
November 9, 2021

https://techcrunch.com/2021/11/09/these ... ltrasound/

Introduction:
(TechCrunch) Microrobots have been a longtime fascination for many in the industry. Such technologies could ultimately provide a slew of applications, including a handful of useful features in healthcare. Things like targeted delivery of medication and microsurgical procedures are frequently mentioned.

Mobility is among the biggest questions that arise from the tech. Specifically, how can roboticists get them to move without batteries and other technologies on board. Magnets are a fairly common suggestion, but a team at ETH Zurich is exploring an altogether different solution: ultrasound.

The robots, which measure smaller than the diameter of a human hair, were created using photolithography. They’re covered with synthetic versions of the sort of cilia that cover starfish larva. In the biological example, these ultra-fine hair-like structures beat the surrounding water in patterns that create small vortexes, propelling the young echinoderms through the fluid. Effectively, the system either pushes water or pulls it in.

The team says it was able to create similar propulsion in its tiny robots by applying ultrasound waves, allowing them to swim in a straight line. The objects you see around the robot in the photos and video are plastic microbeads added to the water to demonstrate how it moves in circular patterns around the robot.

Drug delivery is the most broadly discussed application here — specifically, the ability to deliver medication directly to the site of something like a stomach tumor. Doing so could ensure that it’s used more efficiently, while reducing potential side effects.
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Nanotechandmorefuture
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The use of Nanotechnology in Face Masks Against Airborne Pathogens
By David J. Cross
November 9, 2021

https://www.azom.com/news.aspx?newsID=57257
A team of researchers from Saudi Arabia has presented their study in the journal Nanotechnology on nanotechnology-enabled techniques for use in face masks to protect better against SARS-Cov-2 and other airborne pathogens. The team also compared the effective use of nanotechnology-enabled facemasks with those currently available on the commercial market.
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Shining a Light on Nanotechnology & Quantum Dots
By Anne Corning from Radiant Vision Systems and sponsored on AZO Materials
October 22, 2021

https://www.azom.com/article.aspx?ArticleID=20875
It was in the 1960s that the field of nanotechnology first emerged and in the last two decades it has grown significantly and is poised to take on an increasingly important role in the future of numerous industries.

At present, 70 % of nanotechnology activity is in energy, electronics, and biomedicine,1 but the field is having a growing effect in industries as varied as environmental tech, automotive, defense, cosmetics, agriculture and textiles. It is predicted that in 2024 the global market for nanotechnology will reach US $ 125 Billion.2

What is Nanotechnology?

Nanotechnology is a new scientific field focused on manipulating the molecular structure of materials to alter the intrinsic properties of the materials or to create new materials. It describes the creation of materials and devices “with novel functions and properties based either on geometrical or on material-specific peculiarities of nanostructure.”3

For example, graphene is an alteration of carbon molecules to create cylindrical sheets which are just one atom thick. Graphene has the highest electron mobility of any known material, is stronger than a diamond, harder than steel, lighter than aluminum and is over 97 % transparent to wavelengths of light from ultraviolet to far infrared.4

Graphene is also extremely flexible, a property that researchers have leveraged for the development of “smart tattoos” or “electronic skin”. These are graphene patches that can act as wireless sensors to monitor human pulse, hydration, breathing and body movement.5
[...]
Snippets from the sponsored article. What a great article let me tell you... wow... 1960's they discovered nanotechnology!
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I've edited your post. Please try to limit article extracts to around 5 paragraphs. Thanks.
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NANO-LLPO: Using Nanomaterials to Heal Wounds
By Megan Craig interviewing Dr. Dominik Rejman
November 4, 2021

https://www.azonano.com/article.aspx?ArticleID=5854
AZoNano speak to Dr. Dominik Rejman about the innovative wound treatment, NANO-LLPO. This nanofibrous dressing can not only help to prevent bacterial infection but can promote wound healing as well. Read more about the research behind this exciting development, and how it is helping to advance the integration of nanotechnology in biomedicine.
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Lithography-free carbon nanotube arrays: The simple way to grow an army of tiny superheroes
https://phys.org/news/2021-11-lithograp ... imple.html
by ARC Centre of Excellence in Exciton Science
Carbon nanotubes are one of science's best kept secrets.

These tiny, man-made materials boast extraordinary properties—they are the darkest material humans can create, they absorb light so well they can produce thermal energy, and they're able to mimic nature to help the body fight bacteria.

Researchers in Australia and China have found a cheaper, easier way to organize large groups of carbon nanotubes, potentially opening up many new avenues for their use by more scientists around the world.

Carbon nanotubes are usually grown on the surface of a material using a chemical process involving a carbon source and nanoscale metal catalysts, such as iron, nickel, and cobalt.

A glow-discharge plasma is used to grow the nanotubes vertically and free-standing to form a nanoscopic forest.
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A nanoantenna for long-distance, ultra-secure communication
https://phys.org/news/2021-11-nanoanten ... ecure.html
by Osaka University
Information storage and transfer in the manner of simple ones and zeros—as in today's classical computer technologies—is insufficient for quantum technologies under development. Now, researchers from Japan have fabricated a nanoantenna that will help bring quantum information networks closer to practical use.

In a study recently published in Applied Physics Express, researchers from Osaka University and collaborating partners have substantially enhanced photon-to-electron conversion through a metal nanostructure, which is an important step forward in the development of advanced technologies for sharing and processing data.

Classical computer information is based on simple on/off readouts. It's straightforward to use a technology known as a repeater to amplify and retransmit this information over long distances. Quantum information is based on comparatively more complex and secure readouts, such as photon polarization and electron spin. Semiconductor nanoboxes known as quantum dots are materials that researchers have proposed for storing and transferring quantum information. However, quantum repeater technologies have some limitations—for example, current ways to convert photon-based information to electron-based information are highly inefficient. Overcoming this information conversion and transfer challenge is what the researchers at Osaka University aimed to address.
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Graphene Oxide Nanoparticles in Biodegradable Lubricant Synthesis
By Cvetelin Vasilev, Ph.D.
November 24, 2021

https://www.azonano.com/article.aspx?ArticleID=5890
Graphene-based nanoparticles have gained substantial interest as lubricant additives due to their remarkable physical and chemical properties. With the increased use of vegetable oils as biodegradable lubricants, especially in sectors with a strong environmental impact, much research has focused on using graphene-based nanoplatelets as additives in biodegradable lubricants, thus enabling a superior performance over the commercial mineral oils.
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