Congratulations to the winner of the @discoveryed @3M #YoungScientist challenge, Rishab Jain, I was so impressed by your AI Pancreatic Cancer Deep Learning System, as well as your incredible collaboration and communication in #science . You are an inspiration!
This cannabis terpene can be found most commonly among nature and in hops that flavours your beer! Humulene also has anti-cancer, anti-bacterial and anti-inflammatory properties. #cannametrics#science#cannabis
The other great thing I did to my students yesterday was to play a pretty mean trick on them.
I asked them (via Kahoot!): Ferrozine absorbs at (1) and transmits (2). I then listed a series of possible answers: (a) 1. 590 nm 2. 700 nm and 420 nm. (b) 1. 700 nm and 420 nm 2. 590 nm. (c) it transmits all visible light. (d) 1. 800 nm 2. 1000 nm.
If you look at the purple solution above, you would probably guess that it transmits purple and therefore must absorb green/orange. Meaning you would pick a.
But ferrozine is just a ligand.
It is a bidentate ligand (binds in two different locations) that has a high affinity for iron metals.
As a solid, ferrozine is a light green crystal. In solution, ferrozine appears transparent. So the correct answer is (c) it transmits all visible light.
Wow, I am mean.
Only when it is bound to iron do we observe this beautiful purple.
If you take a look at the ligand itself, you will see some negatively charged -SO3 groups.
These sulfonates are what bind to the iron.
The purple color likely comes from the sulfonates donating their electrons to the iron center.
This is known as a ligand-metal-charge-transfer, or LMCT as the inorganic chemists call it.
Because of its high affinity for iron, and the handy color change, ferrozine makes for an excellent indicator of iron concentration.
You can measure the absorbance of your sample solution and then compare it to a carefully constructed calibration curve.
The calibration curve relates concentration to absorbance intensity. So! By comparing where your absorbance falls, you can determine the concentration!
Hey there! Welcome to all of you who are finding us through T-Pain's School of Business; we're glad you found us 😃 Here's some quick facts about Vite Ramen to get you up to speed:
• We'll be opening pre-orders towards the end of the year as we finish up our Kickstarter orders! Sign up for our email list at http://viteramen.com to be alerted when it happens! ⏰
• Our ramen contains as much complete protein as a 4oz ribeye steak in the noodles! 🥩
• There's 25% or more daily value of all essential vitamins and minerals in each packet! 🍊
• Tim and I ARE twins, but we're not identical (even though we look alike)! 😎
• Vite Ramen will be just $3 a meal; less than the cost of a fast food meal but with way more nutrition! 🍔
• We think you're awesome for wanting to keep up with us and you should give yourself a big ol' high five! ✋
If you haven't seen our segment on the new show T-Pain's School of Business yet, you can catch its premier tonight on @fusetv at 11PM local time, or find it on Youtube in our bio!
⚡️gratitude check in⚡️
AM THANKFUL FOR:
• frolicking in dappled sunlight • grandmother willow’s tender, loving embrace
• the ability & freedom to create meaningful work in nature • rad/ empowering queer connection
• understanding & existing outside of the gender binary
• bravery & grace in times of anxiety/crisis
• standing in my truth
• empathy empathy and more EMPATHY
• (access to) THERAPY (this one times a bajillion)
When my head feels deep (deep) underwater or I’m experiencing reoccurring anxiety attacks because winter is basically here, I find the easiest way for me to access my JOY is through GRATITUDE. Join me for a check in of your own, won’t you? ⭐️ What/who are you grateful for today??? Comment below👇🏻⭐️