This was amazingly helpful. I am writing an assignment on oxidative stress and oxidative damage, he broke things down in a way that i can now start to understand it all. Made my day!
You are so amazing! I'm studying for my masters final and not only were you able to explain, you were able to deliver me the motivation I needed to go through this. THANK YOU X10000 + all antioxidants in the world :) Keep up the amazing work! You are amazing at your job!
This was amazing. I'd been struggling with this and listening to my prof's lecture video over and over and it never made sense. I clicked on your video not intending to listen to the whole 78 minute lecture but in the end I did because you explained everything so clearly and easy to understand. THANK YOU!!!
this is the best video i have ever watched . better then even the UCI open courseware. it not only cleared up my biology knowledge, but also cleared up my chem basics. being a chem student , i totally loved it.
Thank you very much for this lecture, I was looking to "refresh" my knowledge about this topic, it would help me a lot for my thesis defense. Greetings form Mexico!!
I am a Ph.D scholar at Indian Institute of Technology, KHARAGPUR and my topic is cancer biology. Though I am a Bachelor of Pharmacy, I always hate chemistry. But after watching your lecture, now I am loving it. 😁
Superb! Antioxidants are the chemical compounds which protect our body from the molecules known as free radicals which are produced as a bi-product during metabolic processes in our body. I recently came across an informative write up (Top 20 Antioxidant-Rich Foods) at zovon.
One of the excellent lectures I have ever had! I really had hard time understanding lipid oxidation in foods because of the less chemistry background! This cleared all my basic concepts. The only doubt I have is Why Hydroxide radical is mentioned as Ho.? Why is it not o2 (-3) after adding one electron to peroxide ?
That's a very good and extensive explanation of this topic. Thanks for making it easy to understand. Recently I found out there's a test that checks the quantity of antioxidants in one's own saliva. It's called Lelolab. Have you ever heard of it?
41:00 This causes the electrical charge to escape through the cell membrane. The membrane potential in neurons is closer to the threshold. This will increase excitatory sensitivity, resulting in excessive thinking that can cause depression. (thoughts in the head are too aggressive). In addition, it may cause epilepsy seizure (oscillating action potential through the neural network) , migraine attacks, abnormal neuronal network noise, and reduced brain efficiency (fatigue, IQ decline, alcoholism, junk food, etc.).
He was speaking with respect to molecular orbital theory. So i don't think there's existence of pi-bond. For that we have to go back to atomic orbitals participation in bonds.
Why does oxygen biradical have two unpaired electrons with necessarily the _same_ spin? Shouldn't there be like a 50/50 chance of having the same spin vs. opposite spin? -Or does an external field align all unpaired electrons preferentially in one direction?- edit: Hund's rule, apparently. Complicated QM reasons.
THIS VIDEO IS WORTH 100 BOOKS STUDYING. EVERYTHING IS SO CLEARLY AND WELL EXPLAINED AND SO INFORMATIVE ,JUST SUPER
9 years later, your lecture video is still doing wonders. Clear as a crystal, and as concise as it can be. Thank you so much.
The best lecture so far on UA-cam on this subject. Excellent!
What’s his name? Wonderful speaker.
You not only introduced the topic of free radicals for the very first time but made it fundamentals super clear to me. Thanks a ton...
after ten years still ur video is amazing 😍😍😍
Very clear and through instructor. I've had very few patient, articulate, and effective teachers and professors in my life. Great job sir.
this video is so underated .very clearly explained ,thank you so much .
This was amazingly helpful. I am writing an assignment on oxidative stress and oxidative damage, he broke things down in a way that i can now start to understand it all. Made my day!
You are so amazing! I'm studying for my masters final and not only were you able to explain, you were able to deliver me the motivation I needed to go through this. THANK YOU X10000 + all antioxidants in the world :) Keep up the amazing work! You are amazing at your job!
This was amazing. I'd been struggling with this and listening to my prof's lecture video over and over and it never made sense. I clicked on your video not intending to listen to the whole 78 minute lecture but in the end I did because you explained everything so clearly and easy to understand. THANK YOU!!!
This is a great video I like the clarity of the explanation of why oxygen is not very reactive due to the directions of the enzymes
I know this video is several years old, but I have to comment that I'm very impressed with the depth of knowledge here. I wonder what he's up to now.
Interesting and knowledgeable lecture. Thank you very much..
Thanks for the lecture, it was one of the better ones ive ever seen!!
perfectly explained. helped me to pass my exams. kudos. continue with the great work.
Excellent lecture! Thought I'd let you know that even 5 years after uploading, you are still making an impact. Great job!
thank you so much for sharing this with us!!! students from all over the world can access to a very good explanation! thanks a lot
This is by far the best lecture I had on ROS and antioxidants. Thanks a lot for sharing and answering all the questions which came in my mind.
EXCELLENT EXPLANATION
I FOUND MANY BENEFICIAL THINGS IN THIS
NICE ONE .......MUST WATCH....!!!!!
"What do we get when we add another electron to superoxide?"
"Super - duper - oxide?"
made my day
boykokar1 we get peroxide on adding one electron on superoxide
you help me understand why America is being killed by artery macrophages
10 years ago
But this video still amazing 🤍
Thank you so much🤍
WOW! He is a great lecturer. And thank you for sharing.
Excellent lacture. So much informative . I learnt lots of information regarding Free radical and oxidative stress theory.
Thank you so much Sir for this clarity and it's a really very informative video. Even I didn't realize its a 8 years old video.
Very informative lecture and you are great at explaining in detail. Thanks
this is the best video i have ever watched . better then even the UCI open courseware. it not only cleared up my biology knowledge, but also cleared up my chem basics. being a chem student , i totally loved it.
Excellent explanation!!! And, respecfully sir, please allow me to say that you have an outstanding phenotype worth of recombining with.
for real ?
agree
did u really just-
Wow. What a fantastic lecturer, and what a fantastic video.
Sir ..I respect you from bottom of my heart.. beautifully explained ❤️
It's really an extraordinary lecture. I love "ANTIOXIDANTS" very much.
really so much useful, thnks a lot. way of teaching also extra ordinary. once again thank u sir
Wao, an excellent lecture.
Very very nicely and clearly presented the topic
I just love the explanation. Thanks
thanks that was really helpful . Can you please talk about the mechanism for the antioxidant activity of the polyphenols .
Thank you very much for this lecture, I was looking to "refresh" my knowledge about this topic, it would help me a lot for my thesis defense. Greetings form Mexico!!
I am a Ph.D scholar at Indian Institute of Technology, KHARAGPUR and my topic is cancer biology. Though I am a Bachelor of Pharmacy, I always hate chemistry. But after watching your lecture, now I am loving it. 😁
Thank you. This is very clearly explained and helpful.
so clearly.. i understood all about free radicals. thanks a lot..
One question: Is there a dobule bonded molecule such as O2 that has the opposite spin? Would there be a way to polymerize oxygen?
thank you very much for this lecture, very informative, I hope you do lecture about the mechanisms of how antioxidant work.
Hi, may I know who is providing this sharing?
u r awesome sir...i jst hasitate to read this chapter from many weaks...but now u sir make it so esy to learn..tysm
just super simple and informative, thanks a ton
Great explanation... Can be easily understood. Thanks Jan
Superb! Antioxidants are the chemical compounds which protect our body from the molecules known as free radicals which are produced as a bi-product during metabolic processes in our body. I recently came across an informative write up (Top 20 Antioxidant-Rich Foods) at zovon.
Love this video. Learning so much
One of the excellent lectures I have ever had! I really had hard time understanding lipid oxidation in foods because of the less chemistry background! This cleared all my basic concepts. The only doubt I have is Why Hydroxide radical is mentioned as Ho.? Why is it not o2 (-3) after adding one electron to peroxide ?
Beautiful explanation.
Amazing lecture thanks for video 👌
what an amazing lecture. Thank you so much.
Great explanation. Thanks.
That's a very good and extensive explanation of this topic. Thanks for making it easy to understand. Recently I found out there's a test that checks the quantity of antioxidants in one's own saliva. It's called Lelolab. Have you ever heard of it?
Wow a beautiful explaining 😍
v good lecture. you are an ecellent teacher.
Thank you! Very good proffessor!
Wow this guy is good, where does he teach?
Kudos, Easy and Informative.
Thanks for the lecture Sensei !! I love the way you explain. It helps me a lot. I am waiting for your another courses... but in English, ;D
Great, thanks a lot! Some refreshing after my studies
unbleaveable lecture.thank u sir for your lecture.
Thanks for the lecture 👍🏻👍🏻👍🏻
really a nice class, great job!
This is freaking excellent!!! Thank you so much!!!!
Excelente lectura. Great. Is more lectures on biochemistry, metabolism by Jan Trnka ?
41:00 This causes the electrical charge to escape through the cell membrane.
The membrane potential in neurons is closer to the threshold. This will increase excitatory sensitivity, resulting in excessive thinking that can cause depression. (thoughts in the head are too aggressive). In addition, it may cause epilepsy seizure (oscillating action potential through the neural network) , migraine attacks, abnormal neuronal network noise, and reduced brain efficiency (fatigue, IQ decline, alcoholism, junk food, etc.).
O2 is stable because of the pi bond created. There is a double bond between them.
He was speaking with respect to molecular orbital theory. So i don't think there's existence of pi-bond. For that we have to go back to atomic orbitals participation in bonds.
Yes. Molecular oxygen (O2) is not a free radical. It becomes a free radical as a superoxide or peroxide
Very handsome mentor..
Superb lecture!
Thanks for making this video 👍
Brings back memories 😢❤️
Amazing video, thank you!
fantastic lecture
Great lecture!
please add subtitles in Spanish for Mexico. They are really interesting.
Awesome.... too good.... helped me a lot... Thanks
thanks for this lecture
What's left to say ? I am speechless thanks a lot sir
This helps me in research.thnx
excellent lecture plz increase voice clarity of students they sound muffled. it wii be more helpful in listening the interactions as well
Amazing lecture :D
very good work..thank you
this is absolutely amazing!
wow u actually got me interested
HE MAKES SO MUCH SENSE, BUT HIS STUDENTS AREN'T ACTIVE, THEY SOUND BLANK.... I LIKE HIS CONTENT TOO THOUGH
Really great! Thank you.
Why does oxygen biradical have two unpaired electrons with necessarily the _same_ spin? Shouldn't there be like a 50/50 chance of having the same spin vs. opposite spin? -Or does an external field align all unpaired electrons preferentially in one direction?-
edit: Hund's rule, apparently. Complicated QM reasons.
Amanzing, thank you very much.
Oh my God !!! What is the name of this brilliant professor ? Where can we find more of his lectures ? Please anyone answer 😢
Very informative.
You give me confidence going into my PhD viva
Greetings! May i know the name of the Professor... Thank you for educating us.
***** their website shows him as Dr. Jan Trnka, Ph. D.
Mega Rondel yeah he is from czech republic
Many thanks for the useful video could you please provide me with the website name for the professor
Who is this professor . And how to get more lectures of his ?
Many thanks for the useful video could you please provide me with the website name for the professor
you can find his videos easily on YT under name Jan Trnka or fblt.cz :)
excellent lecture > thank you ,so much
How smart he is
Does ingesting small amounts of H202 help or harm the body. Seems it provides more opportunity for creation of free radicals.
Hydrogen peroxide is poisonous
what perfect content thank u
May I know how we could determine antioxidants from plant sources please?
Awesome...... Thankyou sir... :)
Well explained!
how do free radicals get from diesel vehicles into our body? by breathing in free radicals from the burning of the fuel?
I am under the understanding that photochemical oxidation is responsible for the transformation.