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Medical treatments using electromagnetically induced cell death and cell mitotic inhibitors

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Carbon_Rod

Thu May 30 2013, 08:47AM

Registered Member #65 Joined: Thu Feb 09 2006, 06:43AM
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Posts: 1155

I have looked into the research on drug-resistant bacterial decontamination, and recent FDA approvals for tumor treatment trials.

Some papers mention a "sinusoidal 50 Hz field with amplitudes of the flux density B = 0.3 to 4.7 mT" can affect cell mitotic processes.

Specifically, I am interested in whether anyone has tried a low-cost mechanically spun Halbach sphere to generate a non-static field.
The Cylinder method is not as confined, but may also work:

Any interesting apparatus variant suggestions are welcome as always...

Cheers,
Rod

Sulaiman

Thu May 30 2013, 12:45PM

Registered Member #162 Joined: Mon Feb 13 2006, 10:25AM
Location: United Kingdom
Posts: 3140

Wouldn't it be easier to use something like a Helmholtz coil with 50 (60) Hz mains?

0.3 to 4.7 mT is not a very strong flux density, should be easily achieved.

Conundrum

Fri May 31 2013, 07:37AM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061

This is news to me, I was unaware of the laws of physics having changed.
Low power ie 50Hz fields aren't strong enough to affect biological processes, higher frequency and power ie 2.45 GHz at 100mW/cm2 do however by direct heating and denaturing of proteins.

-A

Proud Mary

Fri May 31 2013, 10:40AM

Registered Member #543 Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992

Conundrum wrote ...

This is news to me, I was unaware of the laws of physics having changed.
Low power ie 50Hz fields aren't strong enough to affect biological processes, higher frequency and power ie 2.45 GHz at 100mW/cm2 do however by direct heating and denaturing of proteins.

-A

There are political-economic magnetic fields that affect no one and nothing, but have the potential to affect cell-phone and power distribution share prices - and the careers of scientists who unwisely suggest there might be a danger in them - and then there is all the rest, where fields alternating at as low as 0.3 Hz are allowed to affect the properties of living cells:

and

Carbon_Rod

Sat Jun 01 2013, 01:33AM

Registered Member #65 Joined: Thu Feb 09 2006, 06:43AM
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Posts: 1155

@Conundrum
Indeed, the technology does sound somewhat dubious, but the number of independent studies seems to earn some review. The field apparently interferes with cellular division processes, and has been shown to be effective against rapidly dividing cells.

@Sulaiman
Thanks for the design tip, I may indeed try to replicate low the level exposure experiment to verify and compare data. However, the exposure confinement area needs to be quite fine (5cm diameter), and I am not sure if that winding form would work.

@Proud Mary
Governments shouldn't care about a few nematodes' fate if it can potentially help people with cancer.
The FCC does seem to make some arbitrary decisions sometimes...
Perhaps the FDA approval may create a bureaucratic paradox.

Proud Mary

Sat Jun 01 2013, 08:08AM

Registered Member #543 Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992

BigBad

Sun Jun 02 2013, 05:20PM

Registered Member #2529 Joined: Thu Dec 10 2009, 02:43AM
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Posts: 600

Well, I've built Halbach arrays before, I generated about 1 Tesla.

Generating a field the size you're talking about doesn't even need Halbach arrays, you just need iron and virtually any permanent magnet.

Halbach arrays are a bit of a pain BTW, they are constantly trying to push themselves apart. Iron core structures are much easier, they usually hold themselves together pretty much; so you should avoid Halbachs wherever possible. Also Halbach arrays lose a little of the total field when they are assembled; they're more intense, but the total field is reduced, basically because the magnets are fighting each other.

Carbon_Rod

Mon Jun 03 2013, 05:21AM

Registered Member #65 Joined: Thu Feb 09 2006, 06:43AM
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Posts: 1155

@BigBad
The confinement area ideally needs to be small (low leakage), but I do plan to test one of those wireless power charging units for fun.

Conundrum

Mon Jun 03 2013, 05:54AM

Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061

Heh,
I have one of those here, one side is borked but it does still charge on the other.

Its a Wii battery charger made by orb if that helps.

Also have a dead induction cooker if anyone has a use, includes antenna, main PCB and keypad.

BigBad

Tue Jun 04 2013, 03:27AM

Registered Member #2529 Joined: Thu Dec 10 2009, 02:43AM
Location:
Posts: 600

Carbon_Rod wrote ...

@BigBad
The confinement area ideally needs to be small (low leakage)

If I was you I would just use iron to shape the field, it's much easier; you can get very low leakage if you close the flux loop.

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