Nanomachines, son.

EMP

>>52545512
Take the magnetron out of a commercial microwave, put it in a metal tube as a waveguide, and plug it into a car battery in your backpack.

Light those microscopic motherfuckers up.

>>52545512
Discover its killcode.

If the creator has no killcode, show him that still means nothing and hack it.
EMP can be resisted. But hacking will always be an option, no matter how many defenses the controller/machines have.

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In addition to EMP, something that can disrupt the communication between the individual nanites.

Traditional anti nano weapons are EMP, microwave/maser weapons, Heat in large amounts, Cryo in large amounts, other nanomachines ect.
Depending on tech level of the nanomachines something simple as have a huge fan blow the nano dust away might work, or if its more grey goo scooping up the whole area and moving it to a containment/disposal area.
Super high tier nanomachines might as well be magic

>>52545512
take it to temperature extremes.
Extreme cold ala terminator 2 liquid nitrogen could concievably work since it will make any moving components more brittle, and circuits will develop stress fractures.

Extreme Heat cause duh

This of course does nothing against any dm fiat/ muh plot

>>52545512
A flamethrower

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>>52545563
>t. pic related

>>52545638
I would also suggest a big electromagnet, in case said nanomachine does try to escape. It is then much more easier to deal with.

>>52545689
Yes.

This may or may not be true about my characters in sci-fi.

>>52545512
Heat. Nanites are basically just technological bacteria, and while they'd be more durable would be susceptible to the same things. You can burn them out.

I see that you all had the same ideas as me, a part from the MASER weapon. You see, I Will be the DM of that thing and I wanted to find a way to create challenges for it, without being too obvious about it, so EMP would be used just by few people that Know the guy. So I was just thinking about extreme fire/ice at first(because the setting also have Magic in it) and hacking attempts. If somebody else has some other ideas that would be as subtle I would like to hear it. (I also thought about acid and make it "drown" under lots of water.

>>52545668

This. If fire doesn't work make it hotter. There are few things in this world that can't be solved with liberal application of fire.

>>52545512
Fire, extreme cold, electrocution, ionising radiation, a computer virus, more nanomachines or detergent*, of course.

* Surfactants tend to gum up their little nanohands.

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>>52545512

Appropriately designed chemicals that can bind to the nanomachines and either alter their structure or break them apart would be highly effective.

True nanoscale machines are really fancy molecules.

>>52546284
Find a way to suspend the nanobots in air or void, Via magic or magnets

>>52545512
I would do what >>52546541 proposed,i.e. i would poison them.

>>52545541
Explain

>>52546734
Think about why you shouldn't put metal in a microwave. Now apply that thought to that anon's post.

>>52545512
Well, you can't shoot it in the head, but anything that affects the component nanobots will affect a structure composed of them. Heat, cold, surfactants, acid, current etc. I don't really know how you'd attacking one with an EMP device or a HERF weapon, though. IIRC, there are really two classes of EMP weapons: the non-nuclear kind, which achieve tight coupling with a target using a specific waveform, and the nuclear kind, which I think has a magnitude large enough to incapacitate electronic devices without the need for any particularly tight coupling. So we really want to know what nanobots use for antennas, and frankly I have no clue nanobot-sized antennas work. You might also be able to jam the nanobots so that they can't communicate positional information very well, leading them to generate malformed, nonfunctional structures.

Personally, I'd go with heat. Diamonds oxidize. Proteins lose their tertiary structures. You probably have a flamethrower on hand already and it's not a unitasker. Nice and straightforward.

>>52546721
Shit,i forgot the best option,Heat,EMP,mechanical shock,ionizing radiation and neutrons in a single package.
https://youtu.be/n82pfo-LzXY

>>52546541
>>52546721
You don't need to be too fancy about it—ozone or peroxide would work fine. This isn't like a drug, where you want some kind of very high specificity; this is a case where you can get away with using harsher chemistry.

>>52546762

Nanomachines are individually much too small to interact with microwaves though unless there is a molecular resonance or the like. And it cannot be assumed the macroscopic form they assemble into will be electrically conductive, metals are unlikely to be the basis of a nanomachine.

>>52545512
Why has nobody thought of asking it politely to stop? It might be friendly. L̢̎ͬͯ͛̃̚e̸͒ͦ̔ͨ̋ͫṭ͕͎͇̱̻ͭ̾̿͊ͨͅ'͝s̵͕͔͇͓̩ͫͬ̄ ̜̻̯ͯ̽͒ͫ̇ͭ̚ț͕͌ͨ̑̀a̝̫͈̘͓l̟͕̥̠̝̱̥͝k̺̜̰̞̳̝̟̏̍ ̸͎͇̉̓̓̃t͙͇̋͛͝ȯ̲͈̤͇ͣ̅̕ ̆̍̀i͚̗͙̹̻̗ͣͬ͜t̳̗͓ͮ͆͌̍̆̓,̓͗̉̐̑ ͖̇́͋̓̋o̕h̸̪̻̪̹̥̭̝ͩͧ͌̈ͦͩ ̮̰̺͎̩̹g̷o̮̯̘̝̹̮̝̎͡d̖̭̣͍ ̲̺̯̐̇͗̕m̨̞͕̝̝̗̼͇ͪ̀̓̄̽͊̋ỹ̬̝̰̎ͅ ̫͕̻̲ḩ̥̳̝́̐̎a̫̜̟̽͗ͯ̐ͦ͝n̡̬̬͔̹͚͗̐d͉̮s͕͛͡,͊ͯ ̷̣͕̖͙̗̠͚̏̃̇ͣ̑ͯ͐ŵ̟̬͎̝̿̉ͤ̋̑͡h͚̜͔̍͝a͙̱̟̖͟t̗̦͕̮̻͈̾̀̐'͎̰̞̈́̌͐ͤ͑s̥̪͕͎̮̪ͅ ̥̗̤̩̫̩̙̇ï̶̻̬͍̮̮̙̬̀ͬ̐̂t̷̖̪̪̪̺̮ͭ͌ ̡͇̯͇͖͗̔̏́̒d̡̳̰ͪ́̆̓o͍̭̓͐ͨ̎͛͡i̪̝̗̠͎̘͈ͮͣ

>>52546915

This is true. But I am trying not to prejudge what the nanomachines are actually like - it is not inconceivable they could have something akin to a viral envelope to protect the functional structure.

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>>52546314
Amen Brother

>>52546960
They're eating her, and then they're going to eat me! Oh my goooooooooooooooooooodd!

>>52545512
If you're just looking for challenges for this thing to overcome while being used as a PC, physical damage would probably work at least a little.

If this thing saw an attack coming it could potentially shift some of it's nanobots to stop the thing without being damaged, but otherwise something like a bullet or sword would probably damage at least a few nanobots along the way. Same with explosives.

It would be very slow going, though, unless you had a ton of dudes all unloading into this thing.

>>52548485
Come to think of it, how well does this thing tolerate parts of it being removed? If you cut off one of its arms, would it be able to just reabsorb the nanobots through it's foot? What if the arm fell off a cliff?

If a chunk of it gets separated like that, and the rest gets destroyed, will it be able to reform from that chunk? What if the rest of it isn't destroyed, will there be 2 of it?

>>52545512
https://en.wikipedia.org/wiki/Chlorine_trifluoride

rip the microscopic bastards apart at the chemical level. borg your way around basic chemistry motherfuckers.

>>52546925
microwave radiation works on polar molecules, they are way smaller than any nanomachine so size is not a factor in any way shape or form. it also has dick all to do with electrical conductivity. the waves impart molecular vibration in polar molecules by causing their poles to flip back and forth with the waves magnetic field. this movement generates heat via friction and imparts it to surrounding molecules by conduction. if any part of these micromachines contains polar molecules they Will interact with microwave radiation. they will build up heat and likely a charge due to friction creating a static charge. even if they are non-conductive, which is highly unlikely, heat will still build in the individual units. a DIY microwave gun may not be enough juice to fuck up a swarm but a large enough emiter could be a sound weapon. your statement is just ignorant of the physics involved.

>>52545512
Logic Bomb.

>>52545512
>an organism
>entirely composed of nanomachines
pick one

PC in OP obviously stole his AC from an SCE

>>52545512
Glue. They can't reconfigure if they're all stuck together.

A big magnet

>>52545520
This.

>>52545512
Melt them

>>52545512
Nuke it from orbit, it's the only way to be sure

>>52545512
That will depend on the setting, its cliches and internal technobabble. Nanotech with quantum impellers, von neumann capabilities, virus mimetics, nanite spores or working as memeplex vectors are quite deadly and difficult to conpletely eradicate. But if your rogue nanoswarm considers "guns" effective, it isn't anywhere near that level of advancement.

Realistically, nanomachines are sensitive to heat, because their tiny size prevents that they store or radiate it well. If they group together to do so, it ain't a nanomachine anymore, likely removing whatever advantage it had by being so.

So just kill it with fire.

>>52545512
Fire. All that delicate nanomachinery is almost certainly going to be fucked up by high temperatures. Lots of fiddly little arrangements of molecules to be kicked into more stable states or ruined by chemical reactions.

>>52545512
I-Isn't that sort of what we are?

>>52545512
Dance off

>>52550707
Well, we're specifically nanomachinery based on organic chemistry in an aqueous solution, which fictional nanomachines usually aren't (generally they go more for the Drexler-style teensy-tiny-gears-and-rods mechanosynthesis idea, although that looks a lot less plausible these days), and our individual cells aren't independently motile.

>>52545512
Depending on the exact nature of the nanomachines, you may be able to hack them.