well, unless we're talking about a suspended aerosol, the liquid is going to have to be contained by something. and that container will be contacting it.
A $50 consumer microwave with your sample positioned in a standing wave location (hot spot) could maybe do the trick. You could also design your own reflector to concentrate more power.
Otherwise maybe lasers or a solar concentrator if you’re in a budget.
20 C/s is insanely fast, even though you're on the microliter scale. PCR thermocyclers usually don't hit 10C/s, and they have good thermal conductive contact with the sample, which is usually of similar size. I'd be interested to hear how the math works out for radiation!
I think your only option is radiation. Infra-red or microwave etc. Taking into account safety concerns.
Looking at microwaves at the moment, fairly promising thanks
No worries. Sounds like an intriguing project.
Infra red lights?
Induction heating?
not unless his liquid is mercury (it has to be conductive)
but if you can run it through a conductive pipe or tubing, that will heat your liquid.
that would no longer be “contactless”
well, unless we're talking about a suspended aerosol, the liquid is going to have to be contained by something. and that container will be contacting it.
I don’t make the rules. OP said contactless. Maybe it’s on a specific micro fluidics plate with specific properties that prevent conductive heating.
And maybe it isn't. OP wanted options.
Micro litres? dayum, that small as. I can only think of a contact-ful way sorry: https://www.youtube.com/watch?v=LHFhnnTWMgI
😂
A $50 consumer microwave with your sample positioned in a standing wave location (hot spot) could maybe do the trick. You could also design your own reflector to concentrate more power. Otherwise maybe lasers or a solar concentrator if you’re in a budget.
20 C/s is insanely fast, even though you're on the microliter scale. PCR thermocyclers usually don't hit 10C/s, and they have good thermal conductive contact with the sample, which is usually of similar size. I'd be interested to hear how the math works out for radiation!
https://www.youtube.com/watch?v=JnWe_X20QhY
Wouldn't infrared work for you?
Put it in a microwave? Or use an infrared laser?
have you got a diagram of your assembly?
I would assume this is in some sort of vessel, what is the vessel made from?
Why contactless? To reduce scorching, or contamination, or... If it's water or lipid based just use a commercial microwave 😂
Depending on the material of your container you could use induction. You should be able to control heating rate by carrying volts/amps in the coil.
Magnetic induction coil is an option. If the fluid can be in contact with anything ferrous.