Adsorption of iron nickel, copper and cobalt ions from solutions of bacterial-chemical leaching of cobalt-copper-nickel ore

2020 ◽  
pp. 87-98
Author(s):  
T.P. Belova
Keyword(s):  
Chemical Leaching ◽  
Cobalt Ions ◽  
Copper Nickel ◽  
Nickel Copper ◽  
Iron Nickel ◽  
Cobalt Copper

scholarly journals Localized cutaneous argyria: a new observation

2021 ◽  
Vol 12 (1) ◽  
pp. 30-32
Author(s):  
Selma El Kadiri ◽  
Hanane Baybay
Keyword(s):  
Cell Layer ◽  
Sweat Glands ◽  
Elastic Fibers ◽  
Dermatological Examination ◽  
Entire Duration ◽  
Nickel Copper ◽  
Iron Nickel ◽  
Superficial Dermis ◽  
Eccrine Sweat Glands ◽  
Switching Treatment

A 27-year-old female, a radiotherapy technician, was referred to our consultation with a localized gray pigmentation of the perinasal area. The condition had been asymptomatic for its entire duration of 2 years. A dermatological examination found a localized bluish-gray pigmentation in the perinasal area. Dermoscopy revealed an annular bluish-gray patch. Her occupation involved the manufacture and micromanipulation of machines, which required handling pure iron, nickel, copper, and silver with bare hands. She also reported a tic of flaring the nose. A skin biopsy was performed and histology revealed deposits of fine granules in the basal cell layer of eccrine sweat glands and along the elastic fibers of the superficial dermis, conforming with the diagnosis of argyria. The patient was given laser Q-switching treatment and showed a measurable improvement. This case studies a currently rare dermatological curiosity. Argyria is a disease caused by chronic absorption of silver-rich materials. This is the first description of argyria following the manipulation of radiopaque caches with a tic of flaring the nose.

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