The principle of Lowry assay, Biuret assay, and Bicinconinich (BCA) assay protein assays

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  • Опубліковано 30 вер 2024

КОМЕНТАРІ • 92

  • @sabnym3308
    @sabnym3308 7 років тому +15

    hi again :) thanks for your answers, some things on the lowry are still not clear to me, the internet couldnt help, maybe you can: biuret: copper2+ and peptide becomes a complex. we talk about copper II (same as 2+). so this copper can offer 2 places for electrons to the Ns of the peptide. Thats how the complex is built. in the complex copper is still 2+. how does it come, it changes to copper 1+ ? who or what is reducing the copper? and when it became copper 1+, how can it still be in the complex? because in the complex it should always be copper 2+, not copper 1+. thank you very much for your time and your help!

    • @violets3
      @violets3 4 роки тому +1

      Ever find an answer to this?

  • @hhijazi6296
    @hhijazi6296 6 років тому +6

    I'm very pleased with this video; You even went so far as to explain why the Lowry method is more sensitive (at around 19:10)

  • @greendayrockism
    @greendayrockism 7 років тому +8

    Congratulations on this video! It was extremely useful and very well explained :)

  • @Molecular_Machine
    @Molecular_Machine 7 років тому +11

    Great job, you're a gem. Gave me the best refresher I could hope for. Keep doing what you do!

    • @biomedicalandbiologicalsci4989
      @biomedicalandbiologicalsci4989  7 років тому +4

      Thank you so mutch .. I will .. and please give me encourage by subscribing the channel and sharing the videos ;)

    • @pitou6084
      @pitou6084 3 роки тому

      @@biomedicalandbiologicalsci4989 very helpful, thank you for your efforts. Can you make a video about MSD meso scale?

  • @hokudoshichisei
    @hokudoshichisei Рік тому +2

    I was browsing around to learn why carbonate buffer extracted proteins cannot be assayed using the more common BCA method. The composition of the BCA reagent presented here seems to give me the answer. Many thanks for this presentation!!

  • @lonely_guy294
    @lonely_guy294 3 роки тому +2

    Thank you please continue your good work

  • @fredanir
    @fredanir 6 років тому +5

    thanks, well explained!

  • @sofiamata3507
    @sofiamata3507 3 роки тому +1

    Fantastic work!! Sorry if it’s inappropriate but could I have your last name to reference you work on my lab report? Otherwise I can’t use what I learned here for my work

  • @shuanglongzhang8374
    @shuanglongzhang8374 5 років тому +3

    thank you so much for the video.

  • @moniashek2137
    @moniashek2137 7 років тому +6

    thank you so much for the video, extremely helpful

    • @biomedicalandbiologicalsci4989
      @biomedicalandbiologicalsci4989  7 років тому +2

      Thank you for the encouragement, stay around, new videos are always coming up ..

    • @moniashek2137
      @moniashek2137 7 років тому +2

      you literally saved my assignment, it's due today :) I will, lab forever :D

  • @VyTran-ew9yi
    @VyTran-ew9yi Рік тому +1

    This was so so helpful. Thank you immensely for this, made my introduce to BCA assays so much easier! Now I can write my lab report with slight more confidence!!

  • @rishikeshjaiswal3979
    @rishikeshjaiswal3979 7 років тому +6

    THANK YOU!

  • @johntindell9591
    @johntindell9591 2 роки тому +1

    Thank you so much.

  • @lakshmirao7935
    @lakshmirao7935 2 роки тому

    Is fibers proteins which are insoluble in water give this test.
    Why dipeptides do not give this test. Is it essential to have peptide nitrogens only, terminal amino groups do not form this test.
    Pl comment. Regards.

  • @loucas6065
    @loucas6065 5 років тому +1

    18.54 shouldn't the absorbance be at 500nm where the blue colour is in the visible spectrum? instead of 750nm

    • @logan2811
      @logan2811 4 роки тому +1

      Our eyes see reflected light off objects, if it absorbed blue we would not see it as blue. The color it absorbs makes the solution seem blue.

  • @soussouadrianna7732
    @soussouadrianna7732 Рік тому

    Thank you a lot ... Thank you so much for the nice video... I Can understand the reaction

  • @maggiejameel6725
    @maggiejameel6725 5 років тому +4

    Really well explained, please keep on posting!

  • @atpsmpss4201
    @atpsmpss4201 5 років тому +1

    In the Lorry assay: the BSA concentracion to make de calibration curve can be 10mg/ml or we need a lower concentration?

  • @hassie5294
    @hassie5294 3 роки тому

    Hello, i want your name is for my university report, so i want to put your name on my references....pls great video

  • @Nitro0xide
    @Nitro0xide 6 років тому +1

    thanks my nigga

  • @alaina8314
    @alaina8314 4 роки тому +1

    Super helpful before our Biuret and BCA Assay lab today. Thanks

  • @muratozcan9410
    @muratozcan9410 Місяць тому

    Where are my Turkish fans ? Only me ? :D

  • @ozeiasbatistadossantos119
    @ozeiasbatistadossantos119 3 роки тому +1

    Great content! What about the phenylalanine? Is it oxidized by the Folin-Ciocalteu reagent also?

  • @dewipujiastuti4458
    @dewipujiastuti4458 3 роки тому +1

    terima kasih bund:)

  • @aayushphadte
    @aayushphadte 3 роки тому +1

    This video really helped me alot!!!
    Thank you 😁

  • @matildesanna6895
    @matildesanna6895 3 роки тому

    peccato per i sottotitoli in italiano.... tutti sbagliati

  • @ngassajuliusmussachallya9034

    thanks for a good lesson it is so helpuful

  • @achmadhanifmardinsyah5825
    @achmadhanifmardinsyah5825 2 роки тому

    in lovvry assay.... in frist step you add C(2+), so if there no protein there still molibdenum blue formed right ? because C(2+) unreacted vvith peptide bond can reduce folin reagent

  • @luisvieira7862
    @luisvieira7862 9 місяців тому

    PERFECT! Thanks a lot!

  • @syedanoshhashmi2050
    @syedanoshhashmi2050 5 років тому +1

    Really very helpfu. Thanks Alot

  • @maheshkalshetty9850
    @maheshkalshetty9850 7 років тому +1

    super and short explanation but if diagrams was present its very good.....

  • @sarahfalcone8716
    @sarahfalcone8716 3 роки тому +1

    Great explanation, thank you!

  • @khouanheuanesengkhamyong400

    Thank you so much to share this video, it's very useful for me, I wish you do more video

  • @karlamel216
    @karlamel216 2 роки тому

    You explain very well, thanks for the video. New subscriber.

  • @Mohitthakurofficial
    @Mohitthakurofficial 7 років тому +7

    Amazing! You made Lowry assay on my request. Thank you very much :) Keep it up! please make videos on method and mechanism of Western Blotting technique and Chromatographic techniques.

    • @biomedicalandbiologicalsci4989
      @biomedicalandbiologicalsci4989  7 років тому +4

      Ya true this video was made on your request ... and I will try also to make videos on western blotting and chromatography techniques ... stay around

    • @Mohitthakurofficial
      @Mohitthakurofficial 7 років тому +2

      That's so kind of you. Thanks again for such amazingly explanatory videos.

    • @biomedicalandbiologicalsci4989
      @biomedicalandbiologicalsci4989  7 років тому +1

      I saw your comment on the SDS-PAGE video asking for 2D gel electrophoresis, but I could not find it then ...
      Here is the link:
      ua-cam.com/video/JqFmnxGMc2g/v-deo.html

    • @akankshabasnath4341
      @akankshabasnath4341 4 роки тому

      Could anyone explain in short the mechanism of Lowry method ?

  • @SKY92NET
    @SKY92NET 3 роки тому +1

    Awesome 👏

  • @hashtaghealthy_ger6253
    @hashtaghealthy_ger6253 Рік тому

    Thank you so much for this video! You helped me a lot understanding this process :)

  • @lindascavo4158
    @lindascavo4158 7 років тому

    i'm working with BCA assay , when i calculate the concentration of protein unknow from the formula of curve , i must multiplie with the dilution factor , how much is the dilution factor in this case and how you have calculated ?? thans to your answer

  • @KaushalGrover
    @KaushalGrover 4 роки тому +1

    Thank you🤗🤗

  • @JemimaTomlinson321
    @JemimaTomlinson321 3 роки тому

    if the lowry assay remained yellow can u explain why that wouldve happened

  • @kusumbhalla6760
    @kusumbhalla6760 4 роки тому

    Very nice and knowledgable video with easy explanation

  • @norma1463
    @norma1463 Рік тому

    Great Explanation. Thank you.

  • @sushmita1436
    @sushmita1436 7 років тому +2

    Beautifully explained :)

  • @sudevpradhan392
    @sudevpradhan392 5 років тому +1

    really helpful

  • @naturethetherapist4422
    @naturethetherapist4422 4 роки тому

    Really very grateful understanding vdyo

  • @thebiobuddy9595
    @thebiobuddy9595 Рік тому

    Excellent

  • @park6768
    @park6768 2 роки тому

    awesome!

  • @shreenandansahu
    @shreenandansahu Рік тому

    Loved the way you explained

  • @offside2066
    @offside2066 6 років тому +3

    always appreciated this video thank you so much, really thankful to you....

  • @shadowboy84
    @shadowboy84 3 роки тому

    Thanks for the explanation 🌸

  • @wilmayuangu9386
    @wilmayuangu9386 6 років тому

    Very helpful thank you
    Keep making vedio

  • @Abdullah_Khaled
    @Abdullah_Khaled 3 роки тому

    Thank you very much

  • @rikkigupta9546
    @rikkigupta9546 5 років тому

    Thank u so much explained in easy manner

  • @deborupbhowmick4919
    @deborupbhowmick4919 3 роки тому

    Nice understable lecture❤️

  • @lilithasotondoshe8226
    @lilithasotondoshe8226 4 роки тому

    This was the best video ever

  • @joseg.9150
    @joseg.9150 3 роки тому

    Great video!!!

  • @rajatsansaniwal3205
    @rajatsansaniwal3205 2 роки тому

    Amazing!

  • @ambertjeify
    @ambertjeify 6 років тому

    Are there any references?

  • @lostthetrainerofdemons5379
    @lostthetrainerofdemons5379 7 років тому +1

    this is an amazing video

  • @puhtreecuh6679
    @puhtreecuh6679 3 роки тому +2

    love your explanation! I completely understand what is going on now! thank you!

  • @sakthivelkarthick2226
    @sakthivelkarthick2226 7 років тому

    Really a nice video

  • @tajamul1535
    @tajamul1535 5 років тому

    Nice vedio

  • @abhayverma2253
    @abhayverma2253 6 років тому

    very helpful

  • @VijayRampurkar
    @VijayRampurkar 6 років тому +2

    Thanks amazing job .............................

  • @nassim505
    @nassim505 3 роки тому

    ❤️❤️❤️❤️❤️❤️

  • @garrythesnail1900
    @garrythesnail1900 5 років тому +1

    Really helpful. 👏👏👏 Good going. Great speech. Awesome try !

  • @abdurrahmanabdurrahman9836
    @abdurrahmanabdurrahman9836 5 років тому +1

    So fantastic and fascinating video we need more type videos like this I really enjoyed it

  • @shinyshrooms3841
    @shinyshrooms3841 7 років тому +2

    Great Video! :)

  • @asenopaphino8230
    @asenopaphino8230 7 років тому +1

    Thank you... it's extremely good and helpful...easy to catch up...

  • @lokeshkishor7904
    @lokeshkishor7904 7 років тому +2

    its helpful

  • @mohameddegm5277
    @mohameddegm5277 6 років тому

    Thank you very much
    The video is wonderful and helpful
    I want your personal profile if possible

  • @gowthamvenkatchalam5312
    @gowthamvenkatchalam5312 5 років тому

    Can we have a sprout seed with protein concentration of 55 mg/ml?

  • @kaiquealves1397
    @kaiquealves1397 4 роки тому

    Thank you. It was very clear and useful!

  • @anjubala4931
    @anjubala4931 4 роки тому

    Helpful :)

  • @naughtyreels5005
    @naughtyreels5005 3 роки тому

    i love your accent