As we wonder about the mechanism that has lead to vaccine-induced magnetism, this study and article are of interest.
Do PEGulated iron oxide nanoparticles ring a bell?
Does the guiding of these particles into place using magnets, or Electro-Magnetic Fields feel like deja-vu?
The PEG (polyethyleneglycol) component, is a lipid used to disguise a nanoparticle from the protective human biosphere, within a Trojan-horse-like liposomal coating. .
The magnetic field that can then draw the substance (iron oxide will respond to magnetic fields) to the target area.
PEG however is known to cause varying degrees of allergic reactions.
And of course, in a modern world where we are have polluted our environment with invisible EMFs, particles will also be attracted by competing EMF fields, for instance, those emitted by a mobile or a laptop.
Anyone that has used an EMF reader to test a laptop, will the frequencies generated are highest in the area of the groin - which ironically will probably enforce the effect these researchers are after - drawing the PEGlated nanoparticles to that area.
But what happens if someone places a mobile by their head?
Or, lies down and places their mobile on their chest as they talk via loudspeaker, as many of us do?
Will these actions pull the PEGlated nanoparticles towards our heads, or our hearts?
QUOTE: "... For men looking to avoid getting their partner pregnant, there are basically two options — condoms or a vasectomy. Now, scientists are experimenting with an unlikely third option, magnets. A team in China has developed a long-lasting and biodegradable male contraceptive that uses injections of nanoparticles and magnetic fields to keep men from reproducing.
Their study tested this concept on male mice, examining the effectiveness of two different kinds of nanomaterials entering the body. The process involves heating the nanoparticles after magnets help to guide these tiny particles down into the testes. Once there, they act as a contraceptive as the heat shrinks the testes and inhibits spermatogenesis.
Heat is no good for sperm
It’s no secret that high temperatures are not good for the health of a man’s sperm. Even a guy’s clothing — such as tight-fitting pants or underwear — can decrease their sperm count. With that in mind, previous studies have looked at using heated nanomaterials injected right into the testes as a form of birth control. Unfortunately, scientists have found that the injections are too painful, the heating damages the skin, and some of the nanoparticles tried out are not biodegradable.
Researchers Weihua Ding and Fei Sun led a team that’s taking on this approach from a completely new angle. The new contraceptive doesn’t involve a direct injection into the testes of males. Instead, after two days of injecting coated nanoparticles into the bloodstream of mice, scientists guided them into position using magnets. From there, they applied an alternating magnetic field to the area for 15 minutes.
Researchers used two types of iron oxide nanoparticles, one coated with polyethene glycol (PEG) and others coated with citric acid. Although the team could heat the PEG particles, they couldn’t effectively move them using magnets.
On the other hand, researchers successfully moved and heated citric acid-coated nanoparticles in the testes — forming a barrier to pregnancy for several days. Results show mice treated with this concept could not father any pups for seven days. Moreover, the shrinking of the testes gradually reversed after 30 to 60 days.
“The nanoparticles were non-toxic to cells and were gradually eliminated from the body, offering new possibilities for male contraception,” the researchers write in a media release.
Source is here
Abstract Mild testicular hyperthermia by the photothermal effect of gold nanorods could realize controllable male contraception. However, associated limitations, such as testicular administration and infrared laser inflicting severe pain, and the nondegradability of nanoparticles potentially causing toxicity, have restricted further clinical application. Inspired by the excellent physicochemical properties of iron oxide nanoparticles (IONPs), and the finding that testicular injection of PEG-coated IONPs with a diameter of 50 nm (PEG@Fe3O4-50) following an alternating magnetic field (AMF) could achieve controllable male contraception; here we propose a noninvasive, targeting approach for male contraception via intravenous administration. The magnetic properties and testes targeting of IONPs were proven to be greatly affected by their surface chemistry and particle size. After systemic administration, citric acid stabilized IONPs with size of 100 nm (CA@Fe3O4-100) were found to be the best ideal thermoagent for realizing the noninvasive contraception. This study offers new strategies for male contraception.
Source is here
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