You are not logged in.
For SpaceNut ...
Before creating this new topic, I checked to see which topics might contain "nano*"
Topic Forum Replies Last post
nanoparticles and steam by TonyTMarsBeginner in Life support systems 5 2016-10-27 11:07:41 by JoshNH4H
Breakthrough Starshot: 20% light speed to Alpha Centauri nanocraft by Tom Kalbfus in Interplanetary transportation 7 2016-04-29 22:17:01 by RGClark
Crowdfunding campaign announced: Nanotech: from air to space. by RGClark in Science, Technology, and Astronomy 2 2016-02-24 19:28:07 by RGClark
Nanotech snowflake clouds over Venus by Tom Kalbfus in Terraformation 0 2014-12-06 16:50:04 by Tom Kalbfus
While each is interesting in it's own right, none of them is a good fit for what I have in mind for this topic ...
I'm picking up on a recent post by RobertDyck, in which he described his inventive thinking about nanofiber, and his discovery that another person had actually carried out the sequence of research steps he had imagined.
In the course of that post, or perhaps a follow up one, RobertDyck described in some detail the process by which very short nanofibers can be drawn into a thread, which can then be woven into a very strong rope.
The purpose of ** this ** topic is to provide a rallying point for forum members who are interested in making a fortune (even a small fortune would be welcome) by investing in nanoscale technology.
This is not intended to be an investment topic, although I certainly hope that information useful for investment will accumulate here.
I am ** most ** interested in encouraging the thought process that might lead a young person (young at heart would qualify) to learn whatever is needed to be able to create useful products (or services in the case of software) at the nanometer scale.
IBM recently announced they've achieved silicon chip density of 2 nanometers (Reference needed)
The technology I've described elsewhere, to capture molecules of atmosphere and prevent them from bouncing so they are prevented from becoming "hot" is an example of one that would operate at the nanometer scale.
Separation of molecules suspended in liquids is activity that occurs (or could occur) at the nanometer scale.
Use of bulk manipulation of matter to achieve isolation of molecules is ** so ** 19th century (it is also Antediluvian according to some accounts)
It should be apparent to everyone that nanoscale production facilities are (potentially) small enough to be owned by individual citizens, and thus potentially a source of income, since nanoscale manufacturing equipment will necessarily require human supervision.
The ID Recovery project currently under way in Housekeeping is a model for what we can expect is possible for individual enterprise ...
A (relatively) simple configuration of equipment is performing (hopefully useful) services over the Internet, under human supervision but running unattended for hours at a time.
Nanoscale manufacturing will be similar.
A tree (or any plant) is a nanoscale factory which operates under program control in massively parallel activities that yield a useful "product" in time.
In the case of a tree, the time scale is measured in multiple Earth-years. In the case of some useful plants, the time scale is measured in Earth-days.
So it will be for nanoscale manufacturing by private individuals, if the regularity climate and the needed inventions allow.
(th)
Offline
Like button can go here
I'm hoping RobertDyck will approve re-posting of his recent contribution to the Advanced Food topic.
My idea for the fibres was actually fairly simple. I don't know enough chemistry to devise a catalyst to make them. My hypothesis was gravity pushed the fibres down into the catalyst, when enough weight pressed on the catalyst, the reaction would stop. Chemists at the time fabricated a square with catalyst at multiple points. One fibre would grow from each catalyst on the square. The result was a "forest" (their word) of carbon nanofibres.
This reminded me of a demonstration of making nylon. A clear glass cylinder was filled with one clear colourless liquid, then a second liquid on top. Where the two liquids touched, they reacted to form a film of nylon. The demonstrator used a metal hook to reach in and hook the centre of the film, then pull it up. Because he pulled through the upper liquid, the film collapsed to a narrow tube. But as he pulled, as soon as the film separated from the glass cylinder wall, the two liquids met again. They reacted forming more film. So the demonstrator could pull and pull, the film would never end until all the liquid was gone.
Ok, so my idea was grab the carbon nanofibres with the glue end of a Post-it note. Use the Post-it note to pull the fibres from the catalyst bed. My hypothesis is as soon as the fibre separated, more fibre would form on the exposed catalyst. As long as raw material was provided to the catalyst bed, this should result in a continuous extrusion. Automated machinery would pull the fibres, winding them on some sort of spindle. The reason for a Post-it note is the glue is strong enough to hold, but weak enough that it can be pealed off without damaging the fibres.
The researcher did use a Post-it note. He used a steel wheel to wind the ribbon. Pulling at an angle so the individual fibres would touch and combine to form a ribbon. It worked. When he analyzed the result, he found the ribbon was composed of individual fibrils of only 1/10th mm each. I wasn't expecting that; I hoped for long fibres. Shorter fibrils meant the ribbon did not have all the strength that theoretical chemists had hoped for, but it was still stronger than steel. Stronger than graphite fibre.
The researcher went on to try more things. If he twists while pulling, instead of a ribbon, it forms a thread. Thread can be braided to form a rope. That's a detail I hadn't considered. He also found the fibrils were held together with Van der Waals force. I hadn't thought of that, I just hoped to form continuous fibres, and hoped they would somehow stick together.
You're right, I didn't have the resources to try it myself. But still notice the Post-it note. That's too specific to be a coincidence. Yes, the researcher had a Ph.D. and funding for his lab specifically for carbon nanofibre research. He went on beyond my little idea, but it was my idea that got past their obstacle.
I would be most interested if additional details about the manufacturing process might be made available in this topic.
(th)
Offline
Like button can go here
For RobertDyck re (re-post) in #2 above ...
Is it possible to license the process to make thread that is stronger than graphite fibre? Is there a market for small scale production of this material? Could multiple home-based facilities contribute to a collective effort to produce thread or even rope?
What has happened to this discovery?
(th)
Offline
Like button can go here
the video at the link below reviews the history and status of carbon nanotube research and practical development ...
https://www.youtube.com/watch?v=SIif11QOsRI
How Carbon Nanotubes Will Change the World
(th)
Offline
Like button can go here
Three Ways Nanotechnology Is Changing The Healthcare Industry
https://www.forbes.com/sites/forbestech … -industry/
Atomically Precise Manufacturing Nanotech Meets The Semi World
https://www.designnews.com/materials/at … semi-world
Nanotech to help fight against flystrike
https://nz.news.yahoo.com/nanotech-help … 35281.html
Scientists from the University of Queensland say new research involving nanotechnology could reduce incidences of deadly flystrike in sheep.
A 'nano-robot' built entirely from DNA to explore cell processes
https://www.science-articles.com/2022/0 … na-to.html
Making a small robot out of DNA to explore cell processes that are undetectable to the human eye... You could be excused for thinking it is science fiction, but it is really the focus of significant research being conducted at the Structural Biology Center in Montpellier by researchers from Inserm, CNRS, and Université de Montpellier. This extremely cutting-edge "nano-robot" could make it possible to analyze mechanical forces at tiny scales in greater detail, which are important for many biological and pathological processes. A recent research that was published in Nature Communications details it.
Last edited by Mars_B4_Moon (2022-07-30 07:42:36)
Offline
Like button can go here
For Mars_B4_Moon ... thank you for #5
It is ** really ** good to see this progress in the field!
The medical applications seem especially valuable, because success in combating the natural evolutionary processes going on at that scale would (could) lead to improved lives for millions if not billions of us humans.
However, I am watching for signs anyone is addressing the central problem of life on Earth ... separation of elements from each other, after they have combined in solutions. SpaceNut has taken an interest in separation of non-water molecules from water ones, and I am hoping a solution that operates at the nanoscale will become available, to separate the desirable water molecules in the flow from his underground well, from all the undesirable molecules that were picked up from the New Hampshire regolith.
Those little machines that can operate inside cells would seem (to me at least) candidates to sort molecules passing through tiny sorting rooms.
Update at 21:55 local time ....
Here is a follow up link that goes with the Post #5
https://ibmm.umontpellier.fr/?Nanomedic … nd&lang=en
(th)
Offline
Like button can go here
Magnetic skyrmions - ready for take-off?
https://www.spacedaily.com/reports/Magn … f_999.html
From nanoscale to macroscale: applications of nanotechnology to production of bulk ultra-strong materials.
Robert Clark
http://exoscientist.blogspot.com/2016/0 … scale.html
Last edited by Mars_B4_Moon (2022-09-07 06:27:24)
Offline
Like button can go here
Nano refers to one billionth, observing something in nano-seconds is billionths of a second and measurement of Nano to Micro. 1 n = 0.001 µ a factor of 10−9 or 0.000000001 as a number it frequently encountered in science, chemistry and electronics for prefixing units of time and length, it is now featuring in common scifi and fantasy books. Ribosomes or Palade granules are macromolecular machines, found within all cells, that perform biological protein synthesis mRNA and Ribosomes link amino acids together in the order specified by the codons of messenger RNA molecules to form polypeptide chains. Nanomedicine is the bio chemical medical application of nanotechnology, Nanomedicine ranges from the medical applications of nanomaterials and biological devices, to nanoelectronic biosensors. However sometimes we hear the term Nano in media but the media uses 'Nano' when they should use milli or 'Micro'. nanoscopic scale or nanoscale often refers to structures with a length scale applicable to nanotechnology, usually cited as 1–100 nanometers, the nanometer is a billionth of a meter.
The use of nano in news media now refers to nanotechnology.
Researchers Nanoprint Electrodes for Customized Treatments of Disease
https://www.cmu.edu/news/stories/archiv … rrays.html
Guelph-based nanotech company develops “disruptive” air filter
https://www.reminetwork.com/articles/guelph-air-filter/
Telepathic therapy | Brain waves are used to remotely control DNA-based nanobots
https://earth-matters.nl/earthmatters/z … -nanobots/
Last edited by Mars_B4_Moon (2022-10-15 15:48:13)
Offline
Like button can go here
Chemists create nanomachines by breaking them apart
Offline
Like button can go here
For Mars_B4_Moon re #9
Thank you for this outstanding contribution to the topic!
Eric Drexler's "Engines of Creation" laid out a roadmap for designers of nanomachines. This update shows that innovation has been going on in Canada over recent years. The study of DNA, and particularly, division of existing "natural" machines to watch them re-assemble, is just one of the highlights reported in the article.
Here is a tiny snippet:
Taking this concept literally, researchers in Canada have now discovered that "breaking" molecular nanomachines basic to life can create new ones that work even better.
(th)
Offline
Like button can go here
Dais's Nanotechnology Shows Exceptional Performance Removing PFAS Chemicals From Water and Replacing PFAS Laden Parts
https://finance.yahoo.com/news/daiss-na … 00388.html
Atomic scale technologies (picotechnology)
https://web.archive.org/web/20071210031 … 3_pico.htm
Exchanging energy, orders or information with a molecule require a specific technology to master the interaction of the molecule with an electrode, a tip apex or a dielectric wave guide. In most of the case the interaction must be master with a length scale well below 0.1 nm.
This is for example the case of the electronic interaction between a molecular wire and its interconnection pads. Here, the overlap between the molecular orbital of the end group of the molecule dedicated to the contact and the surface orbital of the end of the pad will vary exponentially with distance in the 0.05nm range. At the same time any atomic defects or disorder at the end of the electrode will modify this overlap and consequently the contact conductance of the molecular wire.
This is also the case in mechanics. When a molecule explores a surface, its legs, wheels…are adsorbed on the surface. Any atomic defect or atomic steps meet along the surface by the itinerant molecule will influence its intramolecular mechanics.
S-Lander
https://web.archive.org/web/20071021202 … anders.htm
We have recently designed specific molecules, named landers by analogy with landing crafts and with the Mars lander, devised for the study of electron transport along a single molecular wire in a UHV-STM tip-molecule-metallic surface experiment. In these molecules, the device (wire, switch) is a rigid polyaromatic board, which is maintained several angstroms above the surface by appropriate spacers (legs) in order to prevent direct electron flow between the tip and the surface through (and perpendicularly to) the board plane. The spacers must show little electronic coupling with the board and with the metal in order to minimize the electron leaks. This device has allowed us to measure for the first time the spatially-resolved conductance of a single molecular wire. Molecular landers can also be used as templates accommodating metal atoms at the step edges of a metal substrate, and moulding metallic nanowires. This work is currently extended to the study of single molecular switches, i.e. molecules for which the conductance can be controlled by an external action.
Offline
Like button can go here
For Mars_B4_Moon re #11
Thank you for these impressive additions to the topic.
I ** think ** (hope) that anyone wanting to understand the rapidly developing field of nanotechnology would appreciate your links and notes!
The idea of ** anything ** being constructed mere angstroms above a surface was science fiction until (obviously) someone achieved it.
A single molecule switch is about as far toward miniaturization as traditional (non-quantum) physics can get.
There is an opportunity to implement data storage at the molecular level ... Your post seems (as I read it any way) to suggest researchers may be approaching that capability.
Many years ago I imagined a string of atoms of various kinds, arranged in a row to represent the familiar binary sequences of data transmissions.
Your post reminded me of that concept, so I'll be watching to see if anyone creates a data storage sequence that can be "written" and then read by suitable devices. The entire sum of human knowledge (that can be stored in digital form) could be stored in a compact form, when this vision becomes reality.
(th)
Offline
Like button can go here
Nanomaterial more than doubles potency of coronavirus disinfectant
Offline
Like button can go here
Nano medical, nano material science and Nanotech for electronics and Nano robot software brains that will behave human.
17 Tech Experts Discuss What’s New And Next In Nanotech
https://www.forbes.com/sites/forbestech … -nanotech/
Materials developed through nanotechnology may have unique properties and capabilities we’ve never seen before
Neural Nanotechnology: Nanowire Networks Learn and Remember Like a Human Brain
https://scitechdaily.com/neural-nanotec … man-brain/
Human-Like Intelligence Could Be Physical In a groundbreaking study, an international team has shown that nanowire networks can mimic the short- and long-term memory functions of the human brain.
'Breaking the Limits of Chiral Structures: First Time Control of Twist in Nanoparticles'
https://scitechdaily.com/breaking-the-l … particles/
MIT engineers “grow” atomically thin transistors on top of computer chips
https://news.mit.edu/2023/mit-engineers … chips-0427
Electromechanical resonators operating at sub-terahertz frequencies
https://techxplore.com/news/2023-04-ele … ncies.html
Scientists demonstrate unprecedented sensitivity in measuring time delay between two photons
https://phys.org/news/2023-04-scientist … otons.html
International research team develops method to characterize nanomaterials
https://phys.org/news/2023-04-internati … rials.html
New nanoparticle source generates high-frequency light
https://phys.org/news/2023-04-nanoparti … uency.html
Fiery response: 'Siglec-14' receptors on human macrophages detect carbon nanotubes and provoke inflammation
https://phys.org/news/2023-04-fiery-res … human.html
New blue light technique could enable advances in understanding nanoscale technologies
https://www.nanotechnologyworld.org/pos … chnologies
A particular 'sandwich' of graphene and boron nitride may lead to next-gen microelectronics
https://phys.org/news/2023-04-sandwich- … t-gen.html
Offline
Like button can go here
Nanoparticles will change the world, but whether it’s for the better depends on decisions made now
https://theconversation.com/nanoparticl … now-211020
Optimizing X-ray mirror thermal performance using matched profile cooling
https://journals.iucr.org/s/issues/2015 … index.html
Bio-nanotechnology, and Nanobiology are terms refering to the intersection of nanotechnology and biology. Artificial cells such as synthetic red blood cells that have all or many of the natural cells' known broad natural properties and abilities could be used to load functional cargos such as hemoglobin, drugs, magnetic nanoparticles, and ATP biosensors.
https://phys.org/news/2020-06-synthetic … mimic.html
An early method of staining glass colloidal gold was used in the 4th-century Colloidal gold is a sol or colloidal suspension of nanoparticles of gold in a fluid, usually water. The colloid is coloured usually either wine red (for spherical particles less than 100 nm) or blue-purple (for larger spherical particles or nanorods. Gold nanoparticles have shown potential as intracellular delivery vehicles for siRNA oligonucleotides with maximal therapeutic impact. Colloidal gold and various derivatives have long been among the most widely used labels for antigens in biological electron microscopy. Antibiotic functionalized metal nanoparticles have been widely studied as a mode to treat multi-drug resistant bacterial strains. For example, kanamycin capped gold-nanoparticles (Kan-AuPs) showed broad spectrum dose dependent antibacterial activity against both gram positive and gram negative bacterial strains in comparison to kanamycin alone.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4908860
Nano-precision metrology of X-ray mirrors with laser speckle angular measurement
https://www.nature.com/articles/s41377-021-00632-4
New generation nano-biomaterials and their potential application in drug delivery and bio-sensing
https://www.frontiersin.org/articles/10 … 60792/full
Offline
Like button can go here
Ceramic Nano Memory - is ceramics the solution for ushering in the "Yottabyte Era" of storage?
Offline
Like button can go here
For Mars_B4_Moon re #16
Thank you for finding and showing the link to the concept of Ceramic Nano Memory!
***
For all....
The transcript at the link below reports on a discussion with ChatGPT4 about Nanotechnology, and the possibility of using Nanotechnology to deal with the annoying behavior of fast moving molecules when they encounter a passive surface, such as a heat shield or the interior wall of a pipe.
https://www.dropbox.com/scl/fi/7joit7bx … zl81w&dl=0
ChatGPT4 concludes the session with what amounts to a Brainstorming Session in which (I presume) it has drawn upon human ideas scattered over the entire Internet, to provide a concise list of possibilities.
(th)
Offline
Like button can go here
New nanotechnology makes water harvesting from air far easier
Offline
Like button can go here
In a nearby topic on asteroid mining, there has been discussion of enclosing a free flying rubble pile object in a net.
The net idea is closely related to the concept of a "parachute" fabric structure that could be pulled around a free flying rubble pile object in space.
Both of these ideas would allow capture of a rubble pile object, and application of force to change the orbit of the captured object, using the tensile strength of the threads of which the net is made to resist the momentum of the material of the object, and thus to "persuade" the material inside the object to collectively adopt a new course.
A system of this kind would require shipment of all the material to make the net from Earth (at present).
Very recently, the idea was introduced, to apply a spray of some kind, to bind the surface of the rubble pile object into a thin shell that would have the tensile strength of a net imported from Earth, but would be made primarily of material from the asteroid itself, using nothing but solar energy.
The field of nanotechnology was first "invented" in 1959, and popularized in 1986. A great deal of work has been done at the nanometer scale since those early days. There is an entire building dedicated to study of nanotechnology, at a university near where I live.
This post is about the possibility of designing nanomachines to form a strong shell/skin around a rubble pile object, using the material at the surface of the asteroid to make structure, and solar energy as the energy source.
DOE Explains...Nanoscience - Department of Energy
www.energy.gov › science › doe-explainsnanoscienceNanoscience is the study of matter at the nanoscale—dimensions between approximately 1 and 100 nanometers or 1,000 times smaller than the width of a human ...
Strong Coupling at Room Temperature Achieved by Nanoscale ...
pubs.acs.org › doi › abs
Jun 26, 2023 · In this work, we develop a general methodology for obtaining strongly coupled hybrid metasurfaces consisting of plasmonic nanocavities coupled ...7 Amazing Everyday Examples Of Nanotechnology In Action - Forbes
www.forbes.com › Innovation › Enterprise TechJul 3, 2020 · Nanotechnology is one of the 25 technologies that are driving the fourth industrial revolution. Here we look at seven amazing examples of ...
I'm picking up on the word "metasurfaces" in the snippets above ... I'm imagining that the material at the surface of a rubble pile asteroid might be enlisted to serve as a thin (but very strong) skin to enclose the entire object. The skin (were it to happen) would have sufficient strength to remain intact when force is applied to a point (or more likely a region) on the surface of the enclosed object, for the purpose of changing it's orbit.
(th)
Offline
Like button can go here
New nanostrings can vibrate longer than any previously known solid-state object
Offline
Like button can go here
In re-reading this post by Mars_B4_Moon, it occurred to me that this technology might be flown in balloons, to harvest moisture from clouds.
New nanotechnology makes water harvesting from air far easier
(th)
Offline
Like button can go here