UV effects on bacteria time-lapse

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  • Опубликовано: 30 окт 2024

Комментарии • 1,7 тыс.

  • @mellowm5634
    @mellowm5634 6 лет назад +2926

    what if all the bacteria just ran away to the other side?

    • @sci-inspi
      @sci-inspi  6 лет назад +840

      E. coli can't move on a solid medium. It would take them a very long time to move to the other side as well.

    • @finalbossd
      @finalbossd 6 лет назад +94

      Sci- Inspi Not to mention that not all strains of E. coli are motile. Perhaps you could have used a nonmotile strain.

    • @davidgamingremastered6784
      @davidgamingremastered6784 5 лет назад +166

      @@sci-inspi r/woosh

    • @chloroplast8611
      @chloroplast8611 5 лет назад +305

      @@davidgamingremastered6784 r/notawooosh

    • @chloroplast8611
      @chloroplast8611 5 лет назад +121

      @@davidgamingremastered6784 r/plzcommitapoptosis

  • @sid2339
    @sid2339 6 лет назад +2523

    What if bacteria apply sunscreen..???

    • @sci-inspi
      @sci-inspi  6 лет назад +631

      It should protect them. If the chemicals in the sunscreen aren't bad for them in the first place.

    • @Wesley_H
      @Wesley_H 5 лет назад +188

      If the sunscreen is zinc based, they should be fine. If the sunscreen is carbon based, the UV will just heat it up and they’ll either incubate or die trying.

    • @andrewglinski4722
      @andrewglinski4722 5 лет назад +212

      Absolutely brilliant 👏👏👏👏👏👏
      Let’s just hope no bacteria’s read this comment or else we’ll have a real problem on our hands.

    • @WanderTheNomad
      @WanderTheNomad 5 лет назад +127

      @@sci-inspi I love how you respond to these questions that were meant to be a joke. Really shows how there are no stupid questions.

    • @halloween8711
      @halloween8711 5 лет назад +23

      'Bacteria' is already plural

  • @larissaamores2254
    @larissaamores2254 5 лет назад +405

    Why is there so many people talkin 'bout gloves? I work in a microbiology lab on pharma and we do not wear gloves. It' s not like splashes or something. It's all about knowing how to handle them. I believe you did it just fine. Normaly people who's afraid without knolwedge of bacterias get scared.

    • @whendeathdeclareswar7458
      @whendeathdeclareswar7458 5 лет назад +18

      Larissa Amores umm! maybe because...its E-coli.

    • @UnitSe7en
      @UnitSe7en 5 лет назад +111

      @@whendeathdeclareswar7458 Do you know anything about E. coli besides "It makes you very sick"?
      You are a part of the problem Larissa describes.

    • @BlaqZ
      @BlaqZ 5 лет назад +8

      @@whendeathdeclareswar7458 how you shit

    • @geomochi4904
      @geomochi4904 5 лет назад +13

      if he gets e coli on his hand he could just wash it off

    • @yurisims1798
      @yurisims1798 5 лет назад +13

      Yeah, in school, even when I worked with piranha solution or aqua regia I didn't really wear gloves. The only time we did was for hydrogen fluoride. If I didn't need to wear gloves for aqua regia you probably don't need to wear gloves for E. coli, especially when there's already a shit ton on your skin.

  • @bigmofo1122
    @bigmofo1122 6 лет назад +1526

    You should spread the colonies who survived into a new petri dish and repeat the process until they all survive.

    • @sci-inspi
      @sci-inspi  6 лет назад +883

      That's a good way to demonstrate adaption and evolution! Thank you.

    • @namlehai2737
      @namlehai2737 6 лет назад +1

      Lol

    • @jordanponton255
      @jordanponton255 6 лет назад +2

      Yep

    • @greg77389
      @greg77389 6 лет назад +555

      That's a good way to create a damn superbug, don't do it!

    • @mashamitchell9574
      @mashamitchell9574 6 лет назад +259

      To create a new super bacteria. No, don't do that.

  • @tedreal2748
    @tedreal2748 5 лет назад +437

    Germs: 'exist'
    Light: im gonna end this man's whole career

  • @makky223
    @makky223 5 лет назад +44

    love how he answer most of the comments

    • @sci-inspi
      @sci-inspi  5 лет назад +45

      I try my best

    • @BornFreeFilms
      @BornFreeFilms Месяц назад +1

      @@sci-inspi Great video. Can you buy a regular lamp and put these bulbs in them?

  • @DesireeWalker
    @DesireeWalker 5 лет назад +39

    Would be interesting to see the comparison between this video and other types of UV light being used

  • @noesnoes3969
    @noesnoes3969 5 лет назад +160

    When Thanos even wipes out half of bacteria

    • @L1zent
      @L1zent 5 лет назад +6

      Wayy underrated

    • @V0YAG3R
      @V0YAG3R 5 лет назад

      noes noes PÉGATE UN TIRO

  • @SkiLLsZ
    @SkiLLsZ 5 лет назад +252

    Hold up bacteria! it is i THANOS

    • @bepis2104
      @bepis2104 5 лет назад

      SkiLLsZ u beat me to it,

    • @FranseD
      @FranseD 5 лет назад +1

      Your profile picture make it better

    • @nomnomyourmom
      @nomnomyourmom 5 лет назад +1

      upvote

  • @electronicsNmore
    @electronicsNmore 4 года назад +27

    Excellent video! I was going to make a video showing UVC light tests using salmonella, but no need to now.

  • @Asu01
    @Asu01 5 лет назад +92

    _"To show you the power of UV light, I covered this specimen in half!"_

    • @mango251
      @mango251 5 лет назад +7

      Protect yourself against the might of UV light with Flex Seal!

    • @darylcheshire1618
      @darylcheshire1618 4 года назад +2

      that is a laboratory UV source, more powerful than the battery UV-C wands.

    • @christopherharris696
      @christopherharris696 3 года назад

      @@mango251 that funny, you know Flexseal really liquid Rubber. UV light eats and destroys elastic polymer Rubber. Rubber enemy is UV light. Don't care if it's vulcanizing like tires they degrade. That why sunscreen like a Rubber protection cream lotion. You are actually protecting the dermis, elastin elastic rubbers band's fibers in our skin, from degradation and wrinkles. Our skin, flesh matter or whatever you call it is similar to a Rubber coverage, over our body's. The pigment melanin a natural sunscreen is natural built-in our DNA. But what most don't understand is, the more skin pigmentation we have the more the skin is tighter lest ability to stretch, the less pigmentation and dna of lighter skin types the more elastin rubber like the skin is. That the way DNA ,dermis etc is , but UV will destroy Flexseal🤣😃😄😄, and Rubber and skin.

    • @dexterwolford
      @dexterwolford 2 месяца назад

      How did you get italics?

  • @katiechaan
    @katiechaan 6 лет назад +64

    How did you quantify the amount of bacteria left over?
    Like is there a way to compare the growth of the control side and experimental side?
    Not sure if that makes sense, but thanks

    • @sci-inspi
      @sci-inspi  6 лет назад +31

      Hi Katie,
      Usually you can count the number of bacterial colonies and compare the different sides. Highly concentrated cultures often leave a "lawn" of bacteria which we can see in the control side. Hope that helps.

    • @chucknorris3752
      @chucknorris3752 2 года назад +1

      ImageJ is also typically used so you can measure the area of patches or lawns of bacteria

    • @ChristmasEve777
      @ChristmasEve777 2 года назад +5

      You can literally see the living bacteria with the naked eye. Couldn't you see the difference between the sides? And he was just counting how many separate groups (colonies) were remaining. Just the number of colonies and total size (area, because they're on a very flat surface) should be all we care about.... not the actual number of bacterium left over.

    • @kashewz
      @kashewz 2 года назад +3

      I don't think the OP took basic biology class >.>

  • @andrewglinski4722
    @andrewglinski4722 5 лет назад +32

    What if after being exposed the the UV light, you look down is shock as the E. coli takes of a pair of shades and says “Hey! Thanks for this nice, golden tan!”

  • @mr.goldfarmer4883
    @mr.goldfarmer4883 4 года назад +15

    love these scientific demonstrations!

  • @boogerking7411
    @boogerking7411 6 лет назад +177

    Nice! E.coli! I like to spread that on my cheese peenut butter sammich

    • @4ipon4ik
      @4ipon4ik 5 лет назад +8

      And how long you are eating shit?

    • @xshad0w362
      @xshad0w362 5 лет назад +1

      @@4ipon4ik lmfao

    • @lowqualitysenti
      @lowqualitysenti 5 лет назад +3

      *you are scaring the bacteria! Shush!*

    • @Euclid1
      @Euclid1 5 лет назад

      Are you sure that it's peanut butter?

    • @lowqualitysenti
      @lowqualitysenti 5 лет назад

      @@4ipon4ik that's a r/whooosh

  • @Imjust-here_
    @Imjust-here_ 5 лет назад +22

    Afraid you have E. Coli on your skin!? No worries! Lay under a UV lamp for a few minutes. You'll be fine.

  • @saifulbrine2391
    @saifulbrine2391 4 года назад +10

    Coronavirus:uhhhh why i can't infected you!!!?!
    Me with full uv armor: i came prepare

  • @DenaturedProtein
    @DenaturedProtein 6 лет назад +1

    Learnt a lot!
    Keep posting such educational videos
    स्टूडेंट की दुआ लगेगी😁

  • @dhanijammm
    @dhanijammm 4 года назад +63

    Who is here after COVID-19 ouybreak

    • @antonioespinoza777
      @antonioespinoza777 4 года назад +1

      I am! Remember to wash hands 👍

    • @TobyCostaRica
      @TobyCostaRica 4 года назад +5

      I am! I am looking to build a box to decontaminate packages before they go into the house without destroying it

    • @TobyCostaRica
      @TobyCostaRica 4 года назад +1

      SURVIVAL OUTPOST CHANNEL how do you figure? UVC rays do not pass through the ozone layer.

    • @canadiannuclearman
      @canadiannuclearman 4 года назад

      Seriously, can this kill viruses like covid-19 ??.

    • @TobyCostaRica
      @TobyCostaRica 4 года назад

      John Olson it does work, but it also kills everything else.
      Using UV light to treat Covid in a person makes about as much sense as boiling them to sterilize them.

  • @gonelol9495
    @gonelol9495 5 лет назад +10

    I honestly love watching bacteria colonies grow, it’s my favorite thing to watch, it’s interesting to see this though. It reminds me of my science fair project, how much bacteria does make up contain? I had a lot of fun watching the progress of the bacteria colonies and seeing them grow, it was very fun. I would like to try this one day at my schools lab, maybe with something different.

  • @catcertifi3562
    @catcertifi3562 5 лет назад +24

    Person: *AcHoO*
    *BEGONE UNHOLY SPIRITS, I HAVE GOD AND UV ON MY SIDE*

  • @FightingMario54321
    @FightingMario54321 5 лет назад +12

    Anyone else freaking out about him not using gloves while handling the E. coli? Lmao. My microbiology teacher always made sure we handled our Petri dishes with gloves.

    • @V0YAG3R
      @V0YAG3R 5 лет назад

      FightingMario54321 nope

  • @---mi9lh
    @---mi9lh 5 лет назад +35

    The apocalypse: bacteria edition

    • @notsure5702
      @notsure5702 4 года назад

      Today this year it seems more like virus, but you were close my friend!

  • @DavidHelloWorld
    @DavidHelloWorld 6 лет назад +4

    I was hoping a video like this existed. Thank you!

    • @vijaypantane
      @vijaypantane 5 лет назад

      Thanks the video is a boon to explain community the effect of time and UV radiation on harmful ecoli found in so many water and food items we consume daily.

  • @tantainguyen4290
    @tantainguyen4290 5 лет назад +7

    E.coli: *Exsist*
    Creator:* THE SUN IS A DEADLY LASER*

  • @Alexander..69
    @Alexander..69 2 года назад

    U r criminally underrated bro

  • @hydrosphagus9672
    @hydrosphagus9672 2 года назад +3

    I know this may sound a bit insane, but if only we could do this same experiment but with even stronger EM waves to test how long microbes could withstand, like say, X-Ray.

    • @cwbh10
      @cwbh10 Год назад

      A bunch of them would pass through, UV is pretty readily absorbed due to their respective photon energy levels.

  • @SenTHR811
    @SenTHR811 2 года назад +1

    Isn't it weird how he handles bacteria so normally? No gloves, no equipment, just swab like there's no tomorrow.

  • @defaultporing
    @defaultporing 6 лет назад +5

    Nice video, thanks for sharing. Would moving the light closer to the petri dish kill the bacteria faster? Just wondering...

    • @sci-inspi
      @sci-inspi  6 лет назад +7

      I am not sure, but I think it would. I think bringing it closer would make it more intense I assume.

    • @Dysfunctionality15
      @Dysfunctionality15 2 года назад

      @@sci-inspi I'm not a biologist so idk if increasing light intensity would decrease disinfection time. But, I do know that uv follows the inverse square law so the light should be far more intense the closer it is.

    • @lanhnhusuong8583
      @lanhnhusuong8583 Год назад

      @@Dysfunctionality15 I think it's also depend on UV wavelength, from all I know, 260-270 nm is the best to kill E.Coli. The lower is, the less effective. I'm not sure what happend if UV wavelength is higher.

  • @nguyenphamthanhgiang8951
    @nguyenphamthanhgiang8951 5 лет назад

    The experiment is cool enough, but you provide explaination too? Perfect.

  • @roncom4321
    @roncom4321 5 лет назад +6

    *Casually pulls out E. Coli*

  • @0x1EGEN
    @0x1EGEN 4 года назад +1

    This is also why every probiotic drink is in a black bottle, so that UV light doesn't kill the bacteria.

  • @davidmullerful
    @davidmullerful 5 лет назад +7

    So bacteria are mini vampires actually, themore you know.

  • @chrisscott1547
    @chrisscott1547 4 года назад +1

    Narration, explaining what we're looking at, and avoiding labels on wrong sides would help this a lot.

    • @maddogmaz1576
      @maddogmaz1576 7 месяцев назад

      Why? You wouldn't understand anyway

  • @TuneintoLearning
    @TuneintoLearning 4 года назад +3

    Basically of reasons planets become deserts when the atmosphere is removed, constant UV bombardment.

  • @flowercollector9013
    @flowercollector9013 4 года назад +1

    This is an awsome channel

  • @UnknownPerson-wg1hw
    @UnknownPerson-wg1hw 4 года назад +6

    I have thought of an experiment involving this method. I'll cover a plastic wrap above the petri dish after inoculation where I can apply a handful of sunscreen. In theory, this should filter, or at least some, UV rays; thus having more growth compared to those completely exposed to UV. It would be nice if you have an insight to this matter.

    • @sci-inspi
      @sci-inspi  4 года назад +9

      Plastic wrap would block the UV rays. An alternative would be a agar or clear overlay with sunscreen and see if that works.

  • @schizophreniagaming1187
    @schizophreniagaming1187 5 лет назад +1

    So basically bacterias are just microscopic vampires

    • @droopsmoop
      @droopsmoop 5 лет назад +1

      Nah everything else is just a bigger and tougher vampire that can handle more UV.

  • @ClarkWhite81
    @ClarkWhite81 6 лет назад +7

    (I liked and suscribed) so if I leave something out in the sun for 2 minutes, will all the bacteria on it die?

    • @sci-inspi
      @sci-inspi  6 лет назад

      Not all the bacteria, but some will die.

    • @Chungustav
      @Chungustav 4 года назад

      These lights are UV-C which cannot penetrate or atmosphere.

  • @Backyardmech1
    @Backyardmech1 5 лет назад

    Now I’m happier knowing my local chicken restaurant has a UV lamp prominently hanging up on the kitchen wall.

  • @78kurenai
    @78kurenai 6 лет назад +3

    Wow, thanks for this! I will quit with overnight uv exposure. It was melting plastic tubes and Pipet tips

  • @genome692002
    @genome692002 Год назад +1

    thanks I have 13w uv light.. I submerge it into my water dispenser for drinking.. I was wondering how long to turn on the disinfection cycles.. now I have an idea..

  • @soroushlink
    @soroushlink 4 года назад +4

    What was the wavelength of your UV light? Did you use uva or uvb or uvc?

    • @chucknorris3752
      @chucknorris3752 2 года назад +1

      UVC is the highest energy and therefore more likely to form thymine dimers, making it most lethal.

  • @6164vincent
    @6164vincent 4 года назад +1

    This was a very helpful video. Much appreciated. I'm sorry you had so many childish replies.

  • @garyha2650
    @garyha2650 4 года назад +6

    Nice work. Can you also run that using O3 generated from 185 nm and no direct UV?

    • @aforum4459
      @aforum4459 Год назад

      This is what I was also wondering. Ozone is heavier than air so it will fall down onto the uncovered side of the petri dish. Perhaps they could seal the dishes and remove all oxygen.

  • @Alii27K
    @Alii27K 2 года назад +1

    so nobody is gonna talk about how this guy got e. coli sitting around in his house???

  • @Sir_Budginton
    @Sir_Budginton 5 лет назад +24

    So to protect myself from bacteria I just have to stand under an extremely intense UV light source for extended periods of time. Maybe if UV kills bacteria, it can also kill skin cancer. I think I just earned myself a noble prize.

    • @Eltodofull
      @Eltodofull 5 лет назад +7

      @Dušan Xmetov And that's exactly how radiotherapy works!
      Except it uses x-rays instead of UV radiation. (The former is more energetic)

    • @garlicbread7119
      @garlicbread7119 5 лет назад +1

      UV kills every cell, high UV exposition is bad for your body.

    • @Sir_Budginton
      @Sir_Budginton 5 лет назад +1

      Garlic Bread that’s kinda the whole joke

    • @Arthanax
      @Arthanax 5 лет назад

      @@Sir_Budginton Yeah, since UV is literally the cause of skin cancer. Don't know how garlic didn't get it. :l

    • @LorenzoRM85
      @LorenzoRM85 5 лет назад

      is one minute too much for the skin?-how much is too much exposure?

  • @dreamrender9138
    @dreamrender9138 5 лет назад +1

    I love how he just handles potentially dangerous bacteria with no gloves on

    • @wolfofmercury7518
      @wolfofmercury7518 2 года назад +3

      Eh, the bacteria used in a lot of labs are non pathogenic, and if you use proper sterilization, handling, and clean up techniques it’s fine. You can use gloves for extra protection though (I generally do because I’m clumsy sometimes)

    • @kalinizsak2275
      @kalinizsak2275 Год назад +1

      ive literally ate E.Coli its fine

  • @hackaniceday
    @hackaniceday 4 года назад +3

    Great experiment! Will it get the same results if use UVB or UVA?

  • @Sunnywastakentoo
    @Sunnywastakentoo 5 лет назад +3

    That face when he accidentally makes a super bug that can survive UV

    • @barch118
      @barch118 4 года назад

      doubt it. Since it's destroyed at the DNA level

  • @TheLostinTheUnknown
    @TheLostinTheUnknown 5 лет назад +7

    Your content is amazing! Can you do the same experiment with fungi instead of bacteria????

  • @Davis38
    @Davis38 5 лет назад +1

    I don't know why but the sentence _"Let's spread E. Coli on the Petri plate"_ Is so funny

  • @lisawong8379
    @lisawong8379 4 года назад +3

    What distance was the lamp from the petri dish? Nice experiment, thank you!!

  • @maxstunner3994
    @maxstunner3994 4 года назад

    This guy answer everyone questions even silly one am subscribing

  • @tonyl9051
    @tonyl9051 4 года назад +3

    Can you do a video on the effects of alcohol on microbes? It's kinda relevant nowadays. Thanks!

  • @eoslightpulsesl6224
    @eoslightpulsesl6224 7 лет назад +2

    Great Video! Whic doses have you applied? 40mJ/cm2 for 30sec? and for 2 minutes? Thanks!

    • @sci-inspi
      @sci-inspi  7 лет назад

      Hi EOS,
      I don't know the dose but I could give you information about the conditions and maybe we can calculate it?

  • @end8316
    @end8316 7 лет назад +3

    so this is is the cure to pimples - UV. thank you for this.

    • @sci-inspi
      @sci-inspi  7 лет назад +12

      That wouldn't be a good idea. UV light causes sunburn. And prolonged exposure of UV after years can cause skin cancer.

    • @drkaranmannan
      @drkaranmannan 7 лет назад

      UV - C are lethal

    • @assassinaria
      @assassinaria 6 лет назад

      It's great for psoriasis though because it kills all the cells that are rapidly regenerating.

    • @idk_what_to_sayyes1038
      @idk_what_to_sayyes1038 4 года назад

      @@sci-inspi if im correct, it also does give a thing called arc eye or welders eye or something? witch tends to be quite painfull.

  • @chrisquinones31
    @chrisquinones31 4 года назад +1

    Just curious, why are you not using gloves and an inoculation loop? I'd be nervous handling bacteria that way..

  • @denniswong7596
    @denniswong7596 7 лет назад +10

    How much E.Coli would i need for this for this experiment

    • @sci-inspi
      @sci-inspi  7 лет назад +4

      one 5-milliliter 24 hour old broth culture of E. coli should be plenty.

  • @ahmedask9045
    @ahmedask9045 5 лет назад +2

    bacteria: they cant kill all of us.
    UV Light: Hold my beer im gonna end this shit wholes career

  • @yakovliam
    @yakovliam 5 лет назад +8

    The real question is, where on earth did you GET E COLI??

    • @sci-inspi
      @sci-inspi  5 лет назад +6

      I bought it from scientific suppliers.

    • @jasonharris5739
      @jasonharris5739 5 лет назад +1

      its ecoli not ebola lmao

  • @xPowerKittyx
    @xPowerKittyx 4 года назад

    nail techs worldwide united with their uv lamps

  • @yuhi6649
    @yuhi6649 5 лет назад +12

    *Grabs E. Coli with his bare hands*

    • @Chungustav
      @Chungustav 4 года назад

      No he grabbed a test tube. The E. coli is inside the test tube

  • @jadsonlucas1456
    @jadsonlucas1456 2 года назад

    the video is 3 years old, but I really liked it, I just missed seeing the PPE protection in your hands when handling the bacteria, or with your eyes in the ultraviolet light. I'm from Brazil and this video will help me do some research

  • @andrewyek
    @andrewyek 6 лет назад +4

    hii,
    you have got a good video.
    would you do a video on Ozon air toward bacteria and mold pls ? there are lot of cheap ceramic ozone generator on ebay..
    thanks
    andrew

    • @sci-inspi
      @sci-inspi  6 лет назад +1

      Let me check and see if I can get my hands on some Ozone.

    • @andrewyek
      @andrewyek 6 лет назад +2

      great!! can't wait.. thanks

  • @AureliusR
    @AureliusR 8 месяцев назад +1

    I hope you wore proper eye and skin protection when using UV-C bulbs! Even brief exposure can cause temporary damage, and anything more than a few seconds can cause burns in your eye. Apparently it feels like you have sand in your eyes all the time... some people's eyes seem to recover, others have irreversible damage. All depends on length of exposure and the power of the lamp. Best to just not take any chances. Even standard polycarbonate safety glasses cut pretty much 100% of UV-C light but even though I know it's factually true it still doesn't feel safe to me and I tend to use specialized UV blocking glasses.
    For those wondering, the reason UVC is so dangerous to humans is that we are never exposed to it naturally. The sun does produce quite a bit of UVC but the atmosphere filters almost all of it out, as well as most UVB. The UVB that gets through is what causes tans/sunburns/melanomas. UVA does also play a part but it's not nearly as damaging as the shorter wavelength UV.

  • @TypeORedPill
    @TypeORedPill 4 года назад +4

    Does UV light have any effect on viruses, and if so, how much exposure is needed to kill them, especially hard-to-kill viruses like SARS-CoV2?

    • @NigelTolley
      @NigelTolley 4 года назад +4

      Cov-sars-2 isn't "hard to kill", just use soap or any disinfectant. The problem is, it *spreads* really easily.

    • @oscararrietav.1311
      @oscararrietav.1311 4 года назад

      @@NigelTolley Billetes, mascarillas, verduras talvez

  • @eikosimino5579
    @eikosimino5579 5 лет назад +3

    Thank you! Now im gonna spray my piece of bread with UV light so no filth is on it!

    • @twentytwo138
      @twentytwo138 3 года назад

      Where do you get your bread from lol.. You don't have to do that if it's fresh bread, bacteria is killed within the oven.. But even if there is some bacteria left, and someone touches the bread, it can build your immunity to that bacteria.. If you disinfect every single food you eat, you wouldn't have immunity and you would easily get sick just by going out

  • @jenny1671
    @jenny1671 6 лет назад +6

    can anyone tell me what is the best uv wand to get i want to make sure it's not a knock off and it kills the bacteria and i want one i can change the bulb if possible for toilet bed sheets and kitchen counter and my lazyboy. how would a person go about testing if it kills germs as it should.?

    • @furrycircuitry2378
      @furrycircuitry2378 6 лет назад +3

      Jeannette K i believe any regular uv light will work but you can always buy some off of amazon good luck:)

    • @HungTran-nr6he
      @HungTran-nr6he 6 лет назад +3

      it s not good to use UV light to kill bacteria in closed area like your toilet, because Uv light reacts with Oxigen O2 in the air to form ozone O3, which is toxic!

    • @jenny1671
      @jenny1671 6 лет назад

      i recieved a light in the mail with no instruction it is led and it is blue it showed how what surfices needed to be cleaned I think it is a black light. Is there such thing as a led uvc light?

    • @adamw.8579
      @adamw.8579 6 лет назад

      +Hung Tr Ozone has no smell, this thing we are feeling is nitrous oxide and this is real threat. Because ozone is hyperactive then easy oxidate nitrogen.

    • @krashd
      @krashd 5 лет назад +1

      Those with the strongest immune systems grew up playing in the dirt, those with the weakest immune systems grew up wrapped in cotton wool.

  • @wzrdinthemaking
    @wzrdinthemaking 2 года назад

    Thank you for the explanation at the end

  • @hand2032
    @hand2032 5 лет назад +7

    Madlad not wearing gloves when handling E. Coli

  • @congratulationsmerry6386
    @congratulationsmerry6386 2 года назад

    meanwhile in an alternate universe:
    "So lets expose it in 1 min"
    1 second later
    "SHIT SHIT SHIT I CREATED A SENTIENT BACTERIA"

  • @mashamitchell9574
    @mashamitchell9574 6 лет назад +3

    Do the same experiment with various levels of alcohol and hydrogen peroxide.

    • @feynstein1004
      @feynstein1004 5 лет назад

      And bleach. That should be interesting.

  • @transcendentspider1879
    @transcendentspider1879 5 лет назад

    Thanos snaps all bacterias in petri dish dishappears
    No bacterias were harmed during the making of this video

  • @ДанкМимс
    @ДанкМимс 6 лет назад +3

    Is the light here uv a, uv b, or uv c light

  • @znsaidi
    @znsaidi 4 года назад +1

    Now you know that summer time is the worst time for cold and flu viruses.

  • @RayMak
    @RayMak 5 лет назад +7

    That's quite fast

  • @rickslife
    @rickslife 4 года назад +1

    Not mentioned here that the UV light needs to be UV-C light. Not UV-A or UV-B. A or B will not kill bacteria or viruses. That’s a very important note not mentioned.

  • @johanponin1360
    @johanponin1360 7 лет назад +4

    Would a simple 3W UV LED be enough ?

    • @sci-inspi
      @sci-inspi  7 лет назад +2

      I am not sure. I used a lamp that had two 15 watt bulbs for this video. My guess would be the 3 Watt lamp would require more time to kill the bacteria. If you have access to a microbiology lab, you may be able to test the 3 watt lamp it.

    • @TheFlyre
      @TheFlyre 7 лет назад

      what if you got a 5 gal of bucket of yeast and water that would take forever?

    • @brasildocara
      @brasildocara 7 лет назад

      Sci- Inspi which wavlength in nanometers was the lamp you used?

    • @harishsridharan3063
      @harishsridharan3063 7 лет назад +2

      The wavelength was 254 nanometers

    • @sci-inspi
      @sci-inspi  6 лет назад

      Yes the wavelength is 254 nanometers. Sorry for the late reply, I never got a notification for this comment.

  • @Microscopy1
    @Microscopy1 3 года назад

    Very godd footage and good presentation. Subscribed!

  • @harishsridharan3063
    @harishsridharan3063 7 лет назад +5

    What temperature did you incubate the bacteria in??

    • @sci-inspi
      @sci-inspi  7 лет назад

      37 degrees Celsius

    • @harishsridharan3063
      @harishsridharan3063 7 лет назад +1

      Thank you. I was researching this on science buddies and they said 37 degrees Celsius but I wasn't sure and so I asked you what you did.

    • @sci-inspi
      @sci-inspi  7 лет назад

      You're welcome Harish.

  • @alsac1
    @alsac1 4 года назад +1

    The bulbs are LP or MP?How distant are lamps from the plate? have you irradiated the plates in a room or outdoors?

  • @शिवणकला
    @शिवणकला 6 лет назад +3

    2:45
    High level stuff

  • @Disconnected554
    @Disconnected554 11 месяцев назад

    Good Ending: No bacteria survived

  • @brodyszone157
    @brodyszone157 2 года назад

    Have u ever been sick from the work u handle with ur hands. I'm cringing so hard my face is gonna get stuck like this lol. But I'm here for this

  • @That1GGirl
    @That1GGirl Год назад +2

    So if I have a uv light on all day and night in my bathroom there will be no bacteria? 😲

  • @Bananaaimingforsubs
    @Bananaaimingforsubs 5 лет назад +2

    The dude just fiddled with E.Coli with his bare hands lmfao

  • @benjamintoybonniephillips8018
    @benjamintoybonniephillips8018 4 года назад +2

    bacteriophages: AM I A JOKE TO YOU?

  • @samuelmontypython8381
    @samuelmontypython8381 2 года назад

    This would be a great thing to show in vampire movies when scientists try to figure out exactly why vampires are evolving to become immune to UV light

  • @ssszwu
    @ssszwu 4 года назад +1

    Is it the same light used for check the money?

  • @gfrzcr9982
    @gfrzcr9982 5 лет назад

    Lmao maybe this is why my mother call me bacteria when she was grasping her life on the hospital then died few seconds later

  • @Denver_Risley
    @Denver_Risley 4 года назад

    Very relevant these days! Thanks!

  • @MukeshKumar-fp4nr
    @MukeshKumar-fp4nr 4 года назад +1

    What happens to Protozones and protozoa

  • @volumeup2714
    @volumeup2714 4 года назад

    Great video !! You are the best!!

  • @kori8527
    @kori8527 5 лет назад

    Me: grows bacteria
    My little brother: *Opens the samples and licks them*
    Me: *TIMMY NO-*

  • @saudibert5626
    @saudibert5626 4 года назад +1

    Is it possible to drink water that has been exposed to ultraviolet rays for several hours, 6 hours, in the sun ? Thanks !

  • @hakudoushinumbernine
    @hakudoushinumbernine Год назад +1

    So how long would it take a light like that to disinfect someones living room?

  • @hardstylecoverage989
    @hardstylecoverage989 4 года назад +1

    Will it be the same effect with 290nm, UVB ?

  • @deansmith4752
    @deansmith4752 4 года назад +1

    What was the separation of the UV tube to the plate , and by 15W I assume you mean 15W of energy going in to the tubes and x% efficiency?

  • @arekmrow123
    @arekmrow123 4 года назад

    Cool. What's the uv bulb power?