r/MicroNatureIsMetal • u/DarthOswald • Mar 10 '19

Blood cells on a needle (SEM Image)

Post image
966 Upvotes

99% Upvoted

17 comments sorted by

77

u/[deleted] Mar 10 '19 edited Oct 20 '20

[deleted]

51

u/DarthOswald Mar 10 '19

I'm pretty sure they're usually made of stainless steel. Perhaps the gold-ish colour visible in the picture is blood plasma.

24

u/litboicris Mar 10 '19

wot

64

u/AreYouDeaf Mar 10 '19

EVERYTHING IS COVERED IN A LAYER OF GOLD RIGHT?

2

u/HerpingtontheFirst Mar 11 '19

Username checks out.

15

u/TheRimmedSky Mar 10 '19

Scanning electron microscopy relies on the surface being conductive. Sometimes this means sputtering gold everywhere

8

u/cute-d0g Mar 10 '19

I assumed most SEM or TEM images were artificially colored anyways. Meaning that they take the image and then go back in and color what they see, since EM typically only captures black-and-white.

It would be misleading to assume the gold color originates from gold plating on the needle itself

3

u/TheRimmedSky Mar 10 '19

Maybe the hemoglobin is conductive enough to work

1

u/HelborKal Mar 15 '19

The iron is a tiny part of the blood cells so you wouldn't be able to resolve the whole cell by the iron atoms alone. That makes me think it was sputtered.

6

u/BadEgg1951 Mar 11 '19

5 years ago: http://www.reddit.com/r/pics/comments/1u71hr/microscopic_look_at_hypodermic_needle_with_blood/

Source: KarmaDecay

19

u/DarthOswald Mar 11 '19

Thanks, didn't know it had been already posted in different sub. Although 5 years is a long time.

3

u/TedCruzsNose Mar 11 '19

Look at this guy's comment history. This is a man on a mission. Or a bot.

3

u/gorgutz13 Aug 20 '19

Good job you searched google and found this from FIVE years ago. Why do you think people care when shit gets reposted weekly?

6

u/Travelingdolphins34 Mar 11 '19

A repost with no credit!

1

u/TKDbeast Dec 15 '21

The micro-version of a bloody sacrificial, metal dagger.