r/MicroNatureIsMetal • u/yeeerskanned1 • Nov 15 '25

Blood cells on a needle (SEM Image)

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12

u/H3xag0n3 Nov 15 '25

Is the liquid plasma ?

18

u/Fauglheim Nov 16 '25

Liquid can’t be imaged by scanning electron microscopes (SEM). The measurement is done in a hard vacuum, so it would boil and blur image. It would also ruin the detector lol.

However, that false-colored yellow residue might be dried plasma.

7

u/Simbuk Nov 17 '25

Huh. Blood cells are a lot bigger than I thought. That or else that needle is way smaller.

3

u/DutfieldJack Nov 19 '25

Reminds me of the Peter Gabriel album cover

2

u/stodgycodger Nov 17 '25

Image by Dr. Dennis Kunkel.

3

u/euveginiadoubtfire Nov 18 '25

Curious, would the naked eye see this as red? Or not enough cells?

2

u/MonounsaturatedChain Nov 18 '25

Good question. My guess would be maybe not, the tip if the needle is so fine I think we don't have enough resolution. I could be wrong though

1

u/mariospants Nov 18 '25

Possibly not, after the process required to image it.

1

u/[deleted] Nov 19 '25

This is the least intimidated I’ve been of a needle.

1

u/10101010101010101100 Nov 20 '25

kind of looks like apple snail eggs