Quantum Dots (Nobel Prize 2023) - Periodic Table of Videos

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Periodic Videos

10 ай бұрын

The Nobel Prize in Chemistry 2023 is awarded to Moungi Bawendi, Louis Brus and Alexei Ekimov “for the discovery and synthesis of quantum dots". More links and info in full description ↓↓↓
This video features chemist Martyn Poliakoff and physicist Philip Moriarty, both from the University of Nottingham.
Nobel Prize website on the 2023 chemistry award: www.nobelprize...
Previous chemistry Nobel Prize videos from us: bit.ly/periodi...
Catch Phil Moriarty over on our physics channel Sixty Symbols: bit.ly/Prof_Mo...
The School of Chemistry at The University of Nottingham: bit.ly/NottChem
Videos on all 118 elements: bit.ly/118elements
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More chemistry at www.periodicvid...
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And on Twitter at / periodicvideos
This episode was also generously supported by The Gatsby Charitable Foundation
Periodic Videos films are by video journalist Brady Haran: www.bradyharan....
Brady's Blog: www.bradyharanb...
Additional editing by James Hennessy
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Пікірлер: 273
@Dogelition
@Dogelition 10 ай бұрын
Minor correction: current displays don't use blue quantum dots. Blue light, either from an LED backlight ("QLED") or OLED emitters ("QD-OLED"), is used to excite red and green quantum dots to generate those two colors.
@jtadevich
@jtadevich 10 ай бұрын
Do a google search on "quantum dots display". You will find while not common, there are some displays which employ quantum dots to some degree. Samsung for instance seems to have some products. There's also a little info on wikipedia. Take care.
@Aura-bu9jb
@Aura-bu9jb 10 ай бұрын
Wait, I thought that in QLED the quantum dots are only used as a filter, and only QD-OLED actually uses them as light emitters. Maybe wikipedia mislead me, or I got something wrong. Could you maybe explain in more detail please?
@tommihommi1
@tommihommi1 10 ай бұрын
they're used *like* filters in that they're in front of the actual light source, but work by turning monochromatic blue light into other colors with the effect discussed in this video
@Aura-bu9jb
@Aura-bu9jb 10 ай бұрын
@@tommihommi1 oh shoot, I didn't finish watching the video😅 Thanks for the explanation!
@jtadevich
@jtadevich 10 ай бұрын
@@Aura-bu9jb 🙂
@dav1dsm1th
@dav1dsm1th 10 ай бұрын
I have to admit when quantum dots first started appearing in TV adverts the cynic in me thought it was just marketing people injecting another misplaced buzzword into their product names "because science". It's good to know it was actually based on some very clever science - and the very, very clever people involved have now been justifiably recognised with a Nobel Prize. Thanks for the videos.
@ihrbekommtmeinenrichtigennamen
@ihrbekommtmeinenrichtigennamen 10 ай бұрын
Watching this video on a QD-OLED right now. Thank you, Louis, Alexei and Moungi, for making this possible!
@davidlloyd3116
@davidlloyd3116 10 ай бұрын
I worked in the blood plasma industry, and Factor IX is passed through a 15nm virus filter, and then 20nm gold particles are then used (destructively) to show the filters weren't compromised. I was involved in the validation of the filters using real viruses, such as polio, which 15-20nm in size.
@aarthiv7347
@aarthiv7347 2 ай бұрын
what have u studied............how to get into these field?
@utkarshaswami2859
@utkarshaswami2859 10 ай бұрын
Periodic videos always brings a smile on my face.
@dereksavastano
@dereksavastano 9 ай бұрын
Facts I hope he’s okay though, I know we’re all getting older… But it sounds like his speech is slowing down a bit, He still obviously is incredibly brilliant. But this kinda hurts to watch. This man was my childhood, I’ll always owe my interest in Chemistry to two people; him being one of them…
@PEGuyMadison
@PEGuyMadison 10 ай бұрын
FYI... gold is used in glassblowing to make "red" glass.
@MichaelKingsfordGray
@MichaelKingsfordGray 10 ай бұрын
So is Strontium.
@dielaughing73
@dielaughing73 10 ай бұрын
​@@MichaelKingsfordGraythey used to use uranium too didn't they, or is it a product of decomposition of other elements?
@funtitan4378
@funtitan4378 10 ай бұрын
@@dielaughing73 uranium has been used to make glass in yellow-green colors, and used in glazes to make orange and red ceramics, for hundreds of years. It was the primary use for the element until radioactivity was discovered
@NitrousProductions
@NitrousProductions 10 ай бұрын
The Nobel laureates totally deserved the prizes.
@rursus8354
@rursus8354 10 ай бұрын
Totally, utterly and exponentially!
@lorenzoblum868
@lorenzoblum868 10 ай бұрын
How humble of you to decide who deserve and who doesn't.
@olommentes
@olommentes 10 ай бұрын
Your approval will mean a lot to them
@bryanpassifiume8255
@bryanpassifiume8255 10 ай бұрын
Okay
@viewitnow3539
@viewitnow3539 10 ай бұрын
I am sure they are ever so comforted in the fact that you approve.
@boydstephensmithjr
@boydstephensmithjr 10 ай бұрын
My undergraduate honors thesis (2002) was simulating Quantum Dot Cellular Automata (QDCA). My advisor had published a paper that solved NP-class problems in P-class QDCA construction steps.
@TheMono25
@TheMono25 10 ай бұрын
Yay a new chemistry lesson ( Chemistry and history ) the Only two subjects i liked at school
@lorenzoblum868
@lorenzoblum868 10 ай бұрын
History is far from being accurate unlike chemistry...
@satyris410
@satyris410 10 ай бұрын
@@lorenzoblum868 no history is ever accurate
@dereksavastano
@dereksavastano 9 ай бұрын
Actually its more-so Chemistry and Physics. This is history for the future.
@zachheilman784
@zachheilman784 10 ай бұрын
There's an old NurdRage video where he makes quantum dots using Cadmium Selenide. All the same chemical but many different colors.
@therobotFrom94
@therobotFrom94 10 ай бұрын
seeing the gold nanoparticles reminds me of making some at The university of Nottingham when I attended as an A-level student for some masterclassess. My mind was blown
@beeble2003
@beeble2003 10 ай бұрын
Oh, wow. What a cool thing to do!
@nuggetwagon
@nuggetwagon 10 ай бұрын
It makes sense that it’s chemistry. It’s exquisite. 4:48
@trainwreck3697
@trainwreck3697 10 ай бұрын
Nice, did you happen to ever meet Martin?
@therobotFrom94
@therobotFrom94 10 ай бұрын
@@trainwreck3697 unfortunately not but I did seriously consider applying to Nottingham because of him!
@DragonFlame135
@DragonFlame135 10 ай бұрын
In my chem 1 lab we made quantum dots last week using Cadmium selenide. Pretty strange that the Nobel prize was in the same topic.
@thor1829
@thor1829 6 ай бұрын
Just shows how fast these breakthrough discoveries become part of the curriculum. I think that's really cool!
@iteerrex8166
@iteerrex8166 10 ай бұрын
Aside from some biology, all sciences and engineerings are physics, applied physics, specialized physics. Awesome stuff 👍
@PhilBoswell
@PhilBoswell 10 ай бұрын
…and biology is mostly applied chemistry, so it's turtles all the way down 🤣
@llllllllllllllllllllllllIIIIl1
@llllllllllllllllllllllllIIIIl1 10 ай бұрын
@@PhilBoswell biology is applied chemistry, chemistry is applied physics, physics is applied maths, maths is applied philosophy,
@martiddy
@martiddy 10 ай бұрын
There's a field that focuses on chemical biology and it definitely uses a lot of mathematical concepts
@ArawnOfAnnwn
@ArawnOfAnnwn 10 ай бұрын
@@PhilBoswell No. The biology channel SubAnima has video precisely critiquing this perspective, including one specifically titled 'Can Biology be reduced to Physics?'. The science just isn't that simplistically reductive.
@lorenzoblum868
@lorenzoblum868 10 ай бұрын
​@@llllllllllllllllllllllllIIIIl1 I tend to agree with your perspective although I would like to suggest "math is applied metaphysics" for the "rime" 😉
@samhands275
@samhands275 10 ай бұрын
Brian name dropped in this video. My project supervisor last year. What a guy.
@allmightyloaf7134
@allmightyloaf7134 10 ай бұрын
I made quantum dots in a chemistry-focused Nanoscience lab this last university term. So cool to see that the resources that were cited in that lab are winning nobel prizes.
@milosristic1111
@milosristic1111 10 ай бұрын
Well,I am watching Your videos already 15 years and I promise I'll visit You someday in Nottingham ❤
@milosristic1111
@milosristic1111 10 ай бұрын
In my country Serbia there is wide spread thinking that because Your Country is exit the EU that now You will decay Your economical growth because, unfortunately,people in my Country as You probably know already don't like EU... Silly CRAPS,our people is very little educated and it has one very bad property and that is Americans,EU and NATO are guilty for bombardment in 1999.That is absolutely BULSHITS just of one very little and jealously nation which doesn't see further of it's nause.Great Britain is by itself so strong that in the next at least 500 years will be the main economical giant even bigger than one Germany despite Germany is in EU and Great Britain isn't.I really think I'll visit Your Country someday when I come Abroad both with Germany and Whole North America over the Atlantic Ocean 🌊.Cheers 🙂👍
@rmbt
@rmbt 10 ай бұрын
This is exactly what I expect how a professor and his office should look like 🙂
@balaam_7087
@balaam_7087 10 ай бұрын
I love this channel. It’s a constant reminder of a whole world outside my little sphere. Today’s video is about someone winning a Nobel prize for something far beyond my realm of understanding, while I’m over here trying to figure out how to tie my boot laces so they don’t constantly come undone as I’m walking down the street 🫠
@stevewallace853
@stevewallace853 10 ай бұрын
Double knot them 🙂
@thomasg5968
@thomasg5968 10 ай бұрын
Where sandals…
@gamarus0kragh
@gamarus0kragh 10 ай бұрын
The elegant solution is to change the round laces for flat. The inelegant is the double knot. the chemical one is to rub them with bees wax ;)
@MusicBent
@MusicBent 10 ай бұрын
My trick is to use a square knot. Either R over L, then L over R or vice versa. Takes some relearning, but doesn’t require a double knot so it’s still fast to tie and easy to undo 👍🏼
@jpaulc441
@jpaulc441 10 ай бұрын
I'm the opposite - I know there's a whole world outside my sphere but I want to avoid it. Escapism is my life goal.
@AntiDot70
@AntiDot70 10 ай бұрын
I wholeheartadly belive that professor Martyn deserves a Nobel prize in the field of global dispersion of educational awesomeness.
@aloe7794
@aloe7794 10 ай бұрын
Oh damn just yesterday I had this on my first Physics lecture in college Glad this channel is still uploading too, you guys are a gold mine of science!
@agentham
@agentham 10 ай бұрын
Old school red stained glass is the color that it is due to it's gold content, just like that liquid. I always think of that Periodic Video every time I see red stained glass. What a cool world we live in.
@friskydingo5370
@friskydingo5370 Ай бұрын
Lazer tweezers are used in the same way to move small particles.
@nestormartinez1593
@nestormartinez1593 10 ай бұрын
Reminds me of how in nature blue is made with structures trapping light and only blue being able to escape the structure
@thececil021
@thececil021 10 ай бұрын
Yes, I had that thought as well. For those that are wondering what this means- blue is almost impossible to synthesize biologically but blue insects, etc. have scales that align in such a way as to appear blue.
@ArawnOfAnnwn
@ArawnOfAnnwn 10 ай бұрын
@@thececil021 Yeah, otherwise known as structural coloration.
@jlp1528
@jlp1528 10 ай бұрын
Nature: why make blue with chemicals when I can just do nano engineering instead?
@ourmuse
@ourmuse 10 ай бұрын
Blue is such an expensive and cool colour. I wonder why only blue 😮
@jlp1528
@jlp1528 10 ай бұрын
@@ourmuse SciShow has covered this. It has to do with blue being a smaller wavelength and a higher energy than other colors of light.
@williammark1762
@williammark1762 10 ай бұрын
Can you do a video on the Nobel Prize in Physics as it deal with electrons
@Thesignalpath
@Thesignalpath 10 ай бұрын
You didn't mention that Quantum Dot research was done at Bell Labs - Louis Brus did this work at Bell Labs before he went to Columbia.
@arandomperson8336
@arandomperson8336 10 ай бұрын
I made quantum dots in one of my undergrad labs (I think it was P-Chem II but don't hold me to that). They looked exactly like 0:33!
@galaxia4709
@galaxia4709 10 ай бұрын
cool! so beautiful!
@shiprachaudhary7805
@shiprachaudhary7805 10 ай бұрын
Was just reading it in paper and here we go
@JustOneAsbesto
@JustOneAsbesto 10 ай бұрын
2:41 That's also how opals work. The different colours are sheets of quartz nanospheres of different sizes.
@sheastewart7608
@sheastewart7608 10 ай бұрын
No, opals are whats known as a photonic crystal. They operate via diffraction, not absoprtion followed by fluorescence.
@markusjacobi-piepenbrink9795
@markusjacobi-piepenbrink9795 10 ай бұрын
Now its time to reunite chemistry and physics.
@appa609
@appa609 10 ай бұрын
They've basically been contiguous since the 60's.The boundary between the two is basically like the border of Europe and Asia: arbitrary.
@jasonsmall5602
@jasonsmall5602 10 ай бұрын
If only there was a Nobel prize for chemistry education.
@azrobbins01
@azrobbins01 10 ай бұрын
Anyone else notice the inside of the mug on the desk at 4:37? Lot of flavor in that residue!
@elberethreviewer5558
@elberethreviewer5558 25 күн бұрын
I have lived on the West Coast of the US for 40 years now. I've never heard of anyone drinking gold in solution. Colloidal silver, yes, gold, no.
@lagomoof
@lagomoof 10 ай бұрын
Is there a Periodic Video on superatoms yet? Hearing about these quantum dots made me think that's what this was going to be about, but apparently not because it seems like Q-dot chemistry is largely the same, except for absorbed / reflected light, whereas, at least according to Wikipedia, superatoms can act like different elements entirely.
@Rubrickety
@Rubrickety 10 ай бұрын
Of course Phil is drinking gold nanoparticles. His love of heavy metal is legendary.
@slyfoxchemistry
@slyfoxchemistry 10 ай бұрын
Amazing job well done how are you
@MichaelKingsfordGray
@MichaelKingsfordGray 10 ай бұрын
Awesome. (The Tetrapod has a medieval name: Caltrop.)
@LReBe7
@LReBe7 10 ай бұрын
To give you a intuitive conception for why quantum dots show some fluorescent behavior and the color being linked to the size, it comes down to the surface of the particle having a resonance for how the electron distribution can be influenced by incoming photons.
@sheastewart7608
@sheastewart7608 10 ай бұрын
Isnt it more to do with the separation of electronic states as the number of atoms involved becomes insufficient to have an actual band structure? Its that and the particle size is smaller than the mean free path of an electron in the material. What you desribed almost sounds like LSPR?
@LReBe7
@LReBe7 10 ай бұрын
Yes, it's possible I have not understood quantum dots completely, but I was testing Cunningham's law.
@arcanics1971
@arcanics1971 10 ай бұрын
There's something comforting about seeing that Prof Poliakoff doesn't clean his cup very often, so the inside is 'brew stained,' just like my own!
@MrRobertFarr
@MrRobertFarr 10 ай бұрын
Hi ! I am a new subscriber. Robert Farr BSc Hons . A student of Dr. David Harwood who's PhD thesis led to the creation of Liquid Crystal Ds. Dr. Harwood was affectionately dubbed : Dave Upside Down Head. Upside Down Head explained how to manufacture flat screen, colour screens. Perhaps he should be awarded the prize next year ?
@seansczecienski5606
@seansczecienski5606 10 ай бұрын
Is my Samsung Quantom Dot TV a result of this discovery?
@ikbintom
@ikbintom 10 ай бұрын
Yes!
@dangleecock6704
@dangleecock6704 10 ай бұрын
This triggered a memory of a video about those that drank nano gold and its health properties. Looks like im going back down that rabbit hole again 😂🔎
@houtansadeghi
@houtansadeghi 10 ай бұрын
We had nobles for organic, inorganic, physical…….chemistry. It’s time to give one for chemical education. I nominate the prof for that. After all without people like him there will be no inspiration
@wtfpwnz0red
@wtfpwnz0red 10 ай бұрын
Crossover between sixty symbols and periodic videos? Today is a good day
@mr.9931
@mr.9931 10 ай бұрын
How amazing that we now not only understand how these quantum dots work (color wise), but I also find it amazing that we know how to create them reliably in a controlled environment. I also have a question concerning a carbon molecule. Noting that Carbon 60 (buckyballs) are roughly spherical and very small, do you think they can be classified as quantum dots? I would think so, noting that C-60 in a solution is a violet color (in which I believe is due to the molecules being so small, and violet is the smallest visible wavelength in the electromagnetic spectrum) I'd really like to hear feedback!
@kkupsky6321
@kkupsky6321 10 ай бұрын
Doc moriarty and poliakov are gems. I prolly spelled them wrong but that was the light affects
@thecsslife
@thecsslife 10 ай бұрын
This reminds me of when I synthesied silver nanoparticles to dope perovskite materials for novel battery electrodes. The nanoparticle solutions also had unusual colours depending on the concentration and ratios of different reagents (as well as temperature).
@seanp8220
@seanp8220 9 ай бұрын
Been a while since a new video. Looking forward to next ...
@TheophilosPorter
@TheophilosPorter 10 ай бұрын
So what are the practical applications? How does this change a substance's physical properties? Are getting closer to Scotty's transparent aluminum?
@RiceProfELEC571
@RiceProfELEC571 10 ай бұрын
Another nice video. I'm a big fan and a long time viewer... but it is a mistake by Phil to conflate the physics of the plasmon resonance in gold nanoparticles due to Maxwell's equations with the change in band structure in semiconductor nanoparticles due to quantum confinement. Cheers.
@sheastewart7608
@sheastewart7608 10 ай бұрын
Right, not the best example...but it is a "size effect" determining optical properties so its not unrelated.
@CausticLemons7
@CausticLemons7 10 ай бұрын
Can you explain some of the chemistry involved with genomes and especially the new mRNA technology? I bet that has some interesting molecular action!
@ValidatingUsername
@ValidatingUsername 10 ай бұрын
3:00 Its an atomic macro structure that utilizes the overlapping of emissions 😊
@Lucius_Chiaraviglio
@Lucius_Chiaraviglio 10 ай бұрын
That last comment at the end -- win. I'll definitely have to keep in mind that if I ever get a call telling me I won a Nobel Prize, it must be a hoax.
@surrog
@surrog 10 ай бұрын
Can't wait for the video on artificial atoms :)
@stefanoberli5920
@stefanoberli5920 10 ай бұрын
Someone made an AI voice model of Professor Poliakoff, heard it on some KZfaq shorts. Not really sure how to feel about that, weird times we live in..
@curiousuranus810
@curiousuranus810 10 ай бұрын
My old tutor, Steve Gurman, was involved with quantom dots 23 years ago, why hasn't he got a mention?
@Beryllahawk
@Beryllahawk 10 ай бұрын
What a wonderful thing to learn about on my Sunday morning. Never even heard of quantum dots before but it turns out I've been staring at them for hours every day as I work! Ha!
@expressoaddict
@expressoaddict 10 ай бұрын
Come on now, this is clearly magic. How else you can control individual atoms with a stick, making structures, or manipulating electrons to emit specific wavelength? Well deserved nobel price sir, well deserved. These guys are modern superheroes and they are literally the reason humanity are evolving to the next level. Thanks guys!
@EnergyTRE
@EnergyTRE 10 ай бұрын
no electron has ever been recorded in history. the size of the frequency is what we detect 5:28. they way they interact is by only letting x through. vision is based on the sire of the EMF wave. not there energy within. "atom" detector consist of a lazer pointed at a target waiting for an obstacle to pass then its called a particle.
@peterfireflylund
@peterfireflylund 10 ай бұрын
Zyprexa deficiency detected.
@artemking4460
@artemking4460 10 ай бұрын
The way he said "when i had more hair" lol
@gerryjamesedwards1227
@gerryjamesedwards1227 10 ай бұрын
The red coloured gold is a modern version of an ancient Roman glass-making process, for deep red stained glass using gold. I have it in a few art history books that the secret to its manufacture was lost at some point. I'm guessing that the huge advances in nano-technology, and making nano-particles, has enabled this? I wonder whether anyone has used it to make glass yet?
@sheastewart7608
@sheastewart7608 10 ай бұрын
No doubt. Gold nanparticles are a classic example. Faraday I believe was the first to really document experiments with them.
@FASTFASTmusic
@FASTFASTmusic 10 ай бұрын
Anyone else think that the three scientists were going to be called "Dr Red, Dr Green and Dr Blue"?
@wvvvwv2
@wvvvwv2 10 ай бұрын
Hahaha
@irinagetun1631
@irinagetun1631 10 ай бұрын
Great idea 🙂
@resqmeskincare6175
@resqmeskincare6175 10 ай бұрын
awesome stuff!
@Crosshair1990
@Crosshair1990 8 ай бұрын
I recognize the small bottle of nanoparticles, I have the same brand of GNPs in my fridge in my lab :)
@Pawtacle
@Pawtacle 10 ай бұрын
I knew that we've been able to make smaller and smaller things over time but I had no idea science and tools have advanced to a level of manually building things from atoms! That's absolutely bonkers! :D
@lufax
@lufax 10 ай бұрын
Look for "A Boy and His Atom". It's a stop-motion movie done by IBM by moving atoms
@sheastewart7608
@sheastewart7608 10 ай бұрын
​@@lufaxand that was done a little bit ago now
@lufax
@lufax 10 ай бұрын
@@sheastewart7608 Yup! A decade ago! Currently people like to use Electron Microscopes to do all sorts of drawings and logos with molecules
@andrewcaldwell5026
@andrewcaldwell5026 10 ай бұрын
Thank you Professor I enjoyed the completely pronouncing the Russians name.
@harriehausenman8623
@harriehausenman8623 10 ай бұрын
The Professor really seems to care about his language. You can also see in some interviews, that he puts more effort into his speech when on camera.
@KFCGamiingTeam
@KFCGamiingTeam 10 ай бұрын
This video got me really excited as a quantum engineering sutdent
@buddhavskungfu
@buddhavskungfu 10 ай бұрын
They anodized crystalline molecules with heat at the nano scale?
@TheMono25
@TheMono25 10 ай бұрын
High school in scotland only three people within ten years got general credit Award in chemistry I was one of them I don't understand how I did it. Because I have adhd and dyslexia 🤔
@EXPLORER-hq1us
@EXPLORER-hq1us 10 ай бұрын
I have adhd too 😢, please tell how 😢
@peterfireflylund
@peterfireflylund 10 ай бұрын
Lots of practice at your meth lab?
@TheMono25
@TheMono25 10 ай бұрын
All i can say is Common sense is a very handy tool and can help u all your life
@pingosimon
@pingosimon 10 ай бұрын
Sorry to make a critical comment on a channel that I love so much, but I really hope the "side angle" cutaway to the interviewee was a one-time thing! It's distracting and unnecessary. Jump cuts and zoom-ins are fine!
@SargeScum
@SargeScum 10 ай бұрын
If you ever go to Sweden, make sure to visit the Nobel Laureates Museum.
@munjee2
@munjee2 10 ай бұрын
I have a very uncommen name, so it was rather startling to hear Sir Martyn say my name, i have legitimately never heard of another person with the same name as me before, although its romanised differently
@scrotiemcboogerballs1981
@scrotiemcboogerballs1981 10 ай бұрын
Great video thanks for sharing
@robertmiller1299
@robertmiller1299 10 ай бұрын
The Prof has issued a challenge!
@DavidBeddard
@DavidBeddard 10 ай бұрын
Oh, hey Phil! 👋 Nice to see you!
@oldadajbych8123
@oldadajbych8123 10 ай бұрын
It is nice to meet the real Professor Moriarty.
@zephaniahgreenwell8151
@zephaniahgreenwell8151 10 ай бұрын
It is structure-property relationships on a nano-scale. Even if it is physics, it is also chemistry.
@sheastewart7608
@sheastewart7608 10 ай бұрын
The point of the prize is chiefly recognizing the controlled and reproducible synthesis of the QDs. Otherwise you cant reasonably study their physics.
@damelyngdoh2370
@damelyngdoh2370 10 ай бұрын
What properties are affected by altering the size of these particles? Does it also alter some of the chemical properties of these substances?
@arkzbh
@arkzbh 10 ай бұрын
Thanks good doctor for explaining it to common folks like us. You would be amazed to know how you made generation of people to follow scince
@rjung_ch
@rjung_ch 10 ай бұрын
Liked this interview a lot, thanks! 👍💪✌️
@douro20
@douro20 10 ай бұрын
The colour of nanoparticles in solution seems to imitate the colour of their emission spectra. A gold vapour laser, for instance, emits in a very deep red, at 628nm.
@patrick247two
@patrick247two 10 ай бұрын
That cup has seen serious tea.
@TimRrstrm
@TimRrstrm 10 ай бұрын
So, Brady, by including their name (I'm not even going to attempt to spell it) at 7:47 I assume you've got an interview lined up?
@Punnery
@Punnery 10 ай бұрын
The bit with the red gold made me wonder--is this related to the phenomenon involved in the Lycurgus Cup?
@moropikkuu
@moropikkuu 10 ай бұрын
It is indeed! They are Gold Nanoparticles, but not Quantum dots, since gold is not a semiconductor. It is still a nano size effect that arises once you go lower than a certain particle size, same as with quantum dots. Though the actual effect that you see is a different one, not the same as with quantum dots. I‘m not sure Prof. Moriarty made that sufficiently clear.
@Deltabreeze9
@Deltabreeze9 10 ай бұрын
Mario Batali works in quantum dots??
@robinbrowne5419
@robinbrowne5419 10 ай бұрын
Atoms are awesome, and so is Periodic Videos 👍
@BostonBonka
@BostonBonka 10 ай бұрын
Your videos are awsome!
@michealwestfall8544
@michealwestfall8544 10 ай бұрын
Could you make water into quantum dots. Say by injecting it in a nonpolar solution and have it suspended in the nonpolar solution.
@sheastewart7608
@sheastewart7608 10 ай бұрын
They wont show the same optical properties as these ultra small semi-conductor particles
@alexcarniglia8141
@alexcarniglia8141 10 ай бұрын
Thanks for the video.
@bigsarge2085
@bigsarge2085 10 ай бұрын
Fascinating!
@Torby4096
@Torby4096 10 ай бұрын
Polliakovium
@PaulFisher
@PaulFisher 10 ай бұрын
The health quacks are more into drinking colloidal silver, not gold. Look up Stan Jones, the libertarian who turned himself blue. Gwyneth Paltrow has also hawked colloidal silver (unsurprisingly), as has Alex Jones.
@PoweredMinecart
@PoweredMinecart 10 ай бұрын
If it is gold nanoparticles in that solution how can something so dense be suspended in solution and not sink to the bottom?
@sheastewart7608
@sheastewart7608 10 ай бұрын
Capping agents
@unvergebeneid
@unvergebeneid 10 ай бұрын
It's crazy to think that even the Romans already used gold nanoparticles to dye glass red. There's really no excuse they didn't figure out quantum physics from there come to think of it 😄
@Flox01000111
@Flox01000111 10 ай бұрын
nanoparticles occur naturally
@ferretyluv
@ferretyluv 10 ай бұрын
They didn’t have the technology to do the double slit experiment.
@Simbosan
@Simbosan 10 ай бұрын
are you sure it's not small and just very far away instead?
@isaacgrant3784
@isaacgrant3784 10 ай бұрын
It was awarded to one for the red the other for the green and the other for the blue
@ikitclaw7146
@ikitclaw7146 10 ай бұрын
Thinking it was a hoax just shows how humble they are, "My work achieved greatness? nah its a joke".
@mr.nobody3248
@mr.nobody3248 10 ай бұрын
Professor Poliakoff should get a Nobel prize!
@JuliusUnique
@JuliusUnique 10 ай бұрын
are you sure it is because of the electrons? I thought the size just causes different wavelengths to be absorbed because of the wavelength matching the size of the particles
@sheastewart7608
@sheastewart7608 10 ай бұрын
Brother, absorption of light is due to photon-electron interaction.
@JuliusUnique
@JuliusUnique 10 ай бұрын
@@sheastewart7608 yeah but it is ALWAYS due to jumping electrons, so there is no information in that statement, meanwhile I add information by explaining that a different sized molecule causes different wavelengths to make the electrons jump
@sheastewart7608
@sheastewart7608 10 ай бұрын
@@JuliusUnique all ive gotta say is, youre oversimplifying it and thinking about it wrong. The size change causes a change in the electronics. I dont have the time nor the desire to unload my 9 years of studying into a youtube comment though.
@JuliusUnique
@JuliusUnique 10 ай бұрын
@@sheastewart7608 I bet it's because you can't
@sheastewart7608
@sheastewart7608 10 ай бұрын
@@JuliusUnique all you gotta do is look me up on google scholar to know youre wrong Better yet, here you go: Chemical Science 12 (4), 1227-1239, 2021 Chemical Communications 59 (24), 3546-3549, 2023 ChemNanoMat 6 (9), 1320-1324, 2020
@vegetasayajin967
@vegetasayajin967 10 ай бұрын
نۆبڵ وەکو پێشتر زانیمان کە کەسایەتی نۆبڵ چۆن دروست بوو ئەویش بە داهێنانی تەقەمەنی بوو لەبەر ئەوەی خۆی بەبۆچوونی خۆی بۆ لایەنێکی تەواو جیاوازی ژیان ئەو داهێنانەی بەکاربێت لەبواری بنیات نانی گەشەسەندنی پیشەسازی و مرۆڤایەتی دا بەڵام بەهۆی توانا ڕوخێنەرەکانی ئەو داهێنانە لەبواری جەنگەکان دا ناوبانگی لەکەدار لەبەر ئەوە هەوڵی دا بەهەموو جیهان بڵێت مەبەستەکەم داهێنانی زانستی بووە بەو شێوەیە بەدانانی بودجەیەک بۆ ئەو خەڵاتە و سازکردنی ئەو بۆنەیە نیەتی ڕاستەقینەی ئەو دەردەخات ئەوەش یەکەم جار نیە کە داهێنانێک بەو شێوەیە بەکار بهێنرێت و کەسایەتیەکە تووشی پەشیمانی و دڵەڕاوکێ بکات ئاینشتاین بەهەمان شێوە و بەهەمان ئەو هەستانە دا تێپەڕیوە کەنۆبڵ پیایدا تێپەڕیوە بەڵام لەوانەیە ئەو هەڵویستانەی نۆبڵ و ئەوانەی کە داکۆکیان لەو بۆچوونە ئەکرد ئەو ووڵاتەی لە جەنگ پاراست و ئەو داهێنانە تەنیا بۆ هۆکارەکانی گەشەسەندنی پیشەسازی بۆ خزمەتی مرۆڤایەتی لەو وڵاتەدا بەکارهاتووە
@dianegru6948
@dianegru6948 7 ай бұрын
How to heal your body from quantum dots? If someone use them in a evil way?
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