NaH + H2O = NaOH + H2

biblical angels but their true form looks like the patterns in 90s arcade carpets

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A blinking for microbiology and robotics pls?

When sodium hypochlorite (bleach) solution is added to luminol, a chemical reaction occurs that releases energy in the form of light. This is called chemiluminescence. The bleach solution acts as an oxidizing agent, which means it takes electrons away from the luminol molecule. This causes the luminol molecule to become excited, and it releases the energy as light.

🎥 Courtesy: Kendra Frederick

The luminol molecule is made up of two amino groups, a carbonyl group, and an azo group. The amino groups are electron-rich, while the carbonyl group is electron-poor. The azo group is a conjugated system, which means that the electrons in the double bonds can move freely from one atom to another.

When sodium hypochlorite (bleach) solution is added to luminol, the bleach molecules react with the amino groups of the luminol molecule. This reaction takes electrons away from the luminol molecule, which causes the luminol molecule to become oxidized. The oxidized luminol molecule is in an excited state, which means that it has more energy than it normally does.

The excited luminol molecule then releases the extra energy as light. This light is called chemiluminescence. The light emitted by the chemiluminescence reaction is blue because the luminol molecule has a blue fluorescence.

The chemiluminescence reaction between luminol and sodium hypochlorite is catalyzed by the presence of a metal ion, such as iron or copper. The metal ion helps to stabilize the excited state of the luminol molecule, which makes it more likely to release the extra energy as light.

The chemiluminescence reaction is very sensitive to impurities, so it is important to use pure chemicals. The reaction can also be affected by the pH of the solution. The optimal pH for the reaction is around 9.

The chemiluminescence reaction between luminol and sodium hypochlorite can be used to detect blood, as the iron in hemoglobin can catalyze the reaction. The reaction is also used in some commercial products, such as glow sticks and emergency lights.

I hope you enjoyed learning about this. ❤️🙏

"Microbial Rainbow" (detail), Tal Danino, 2018

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(via Agar Art — A Cultural Triumph: See A Microbiology Masterpiece In A Petri Dish : NPR)

yep, it’s cultured & arranged bacteria!

FOTD #073 : apricot jelly! (guepinia helvelloides)

apricot jelly (AKA salmon salad & red jelly fungus) is a saprobic jelly fungus in the family exidiaceae. it often grows in small tufts in the soil :-) it is found in canada, the US, mexico, iran, turkey, brazil, puerto rico, china & most parts of europe.

the big question : can i bite it?? yes !! it is edible but bland.

g. helvelloides description :

"the fungus produces salmon-pink, ear-shaped, gelatinous fruit bodies that grow solitarily or in small tufted groups on soil, usually associated with buried rotting wood. the fruit bodies are 4–10 cm (1.6–3.9 in) tall & up to 17 cm (6.7 in) wide; the stalks are not well-differentiated from the cap."

[images : source & source] [fungus description : source]

Coelastrum, a microalgae. 

When I was in the hospital, they gave me a big bracelet that said ALLERGY, but like. I'm allergic to bees. Were they going to prescribe me bees in there.

petri dish art by @dashaplesen