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2016 ; 9
(3
): 51-4
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Ferrofluid-associated Cutaneous Dyschromia: Discoloration of Hand and Fingers
Following Accidental Exposure to Ferromagnetic Fluid
#MMPMID27354890
Cohen PR
; Arfa KS
J Clin Aesthet Dermatol
2016[Mar]; 9
(3
): 51-4
PMID27354890
show ga
BACKGROUND: Ferrofluid is a colloidal suspension that usually consists of
surfactant-coated nanoparticles of magnetite (Fe3O4) in a carrier liquid.
Ferromagnetic fluid forms spikes when the liquid is exposed to a magnetic field.
PURPOSE: The authors describe a man who developed temporary discoloration of his
right palm and fingers after accidental cutaneous contact with ferrofluid and
discuss some of the current and potential applications of this unique liquid.
METHODS: A 28-year-old man was evaluating the effects of magnetic fields using
ferrofluid. He performed a modification of the "leaping ferrofluid" demonstration
in which he held a superstrong (14,800 gauss magnetic field strength) N52 rare
earth neodymium magnet in his palm and slowly lowered that hand over an open bowl
that was filled with ferrofluid. RESULTS: As the magnet approached the liquid,
the ferrofluid became magnetized. The liquid leaped from the bowl and contacted
not only the magnet, but also the palmar surface of his hand and fingers,
resulting in a black-brown dyschromia of the affected skin. The discoloration
completely resolved after two weeks without any adverse sequellae. CONCLUSION:
Ferrofluid has numerous current and potential applications; in addition to being
of value educationally and aesthetically (after being subjected to magnetic
fields), it is also utilized for audio loudspeakers, medical innovations (such as
a component of either a research tool, a diagnostic aid, or a treatment
modality), and seals. Although the authors' patient did not experience any acute
or chronic toxicity from his cutaneous exposure to ferrofluid, conservative
follow-up for individuals who experience skin contact with ferromagnetic fluid
may be appropriate.