more info about tubocurarine: #chemed #chemtwitter #STEMeducation

Kabachnik-Fields Reaction #namereaction #KingDraw

Calabar beans, from West Africa, contain deadly alkaloids. The main one, physostigmine, can be fatal in doses as low as 6-10 mg. In Nigeria, they were used in "divine trials" and duels, often resulting in death. #DYK #iteachchem

more info about physostigmine: #chemed #STEMeducation #KingDraw

Kulinkovich-de Meijere Reaction #namereaction #KingDraw

The fridge isn't a "safe box"; Listeria can grow at 0°C. It's a deadly pathogen with a 20% fatality rate. Heat kills Listeria, so cook food thoroughly. Avoid raw foods, and keep raw and cooked items separate in the fridge to prevent cross-contamination. #iteachchem #chemed

Kumada Coupling #namereaction #KingDraw

Kulinkovich-de Meijere Reaction #namereaction #KingDraw

Lawesson Reagent #namereaction #KingDraw

Green beans, like common beans and cowpeas, are popular but can cause food poisoning if undercooked due to "phytohemagglutinin (PHA)." This toxin, found in beans, can irritate the gastrointestinal tract. However, high temperatures can neutralize its toxicity. #iteachchem #DYK

Some users asked about adding subscript and superscript. This video demonstrates how to use the text tool for these features to enhance your drawing efficiency with KingDraw App. 😀 youtu.be/d2jUMV8pfs0 #KingDraw #UserExperience

Leuckart Thiophenol Reaction #namereaction #KingDraw

📢 Want to draw organics and convert them to the IUPAC name quickly? Using groups significantly speeds up the process! Structure generation and transformation are key features of the KingDraw app, providing great convenience. Don't miss this tutorial! 😀youtu.be/E_kXj6Y8rgY

Bioluminescence is when organisms convert chemical energy to light. Over 30 systems exist, with fireflies' "luciferin-luciferase" system being well-known. Fireflies emit light from a special organ, where luciferin, ATP, and O₂ react to glow, without generating heat. #iteachchem

About 90% of deep-sea life can glow, using "Coelenterazine" to store light energy, found in over 75% of marine bioluminescent species. In 1962, Osamu Shimomura discovered "Coelenterazine" and "Aequorin," a calcium-activated photoprotein, in Aequorea victoria jellyfish.#DYK

more info about Coelenterazine: #iteachchem #chem #STEMeducation #KingDraw

Aequorin emits blue light when exposed to calcium ions. Later, Shimomura found "Green Fluorescent Protein (GFP)," which is now a vital tool in bioscience research. more info about coelenterazine: #iteachchem #chemed #KingDraw

Kabachnik-Fields Reaction #namereaction #KingDraw

The Lophiiformes order includes mostly deep-sea, predatory fish like the anglerfish with poor vision and uses a modified dorsal fin as a "fishing rod" to lure prey with a glowing lure (Illicium). Aliivibrio fischeri and reduced flavin mononucleotide (FMNH₂), luciferase, O₂ #DYK

more info about FMNH₂: #iteachchem #chemed #STEMeducation