1. Assessment of dermal absorption of beryllium and copper contained in temple tips of eyeglasses
- Author
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Greta Camilla Magnano, Giovanna Marussi, Gianpiero Adami, Matteo Crosera, Francesca Larese Filon, Magnano, Greta Camilla, Marussi, Giovanna, Adami, Gianpiero, Crosera, Matteo, and Larese Filon, Francesca
- Subjects
Franz cell ,Cutaneous exposure ,Dermal absorption ,General Medicine ,Toxicology ,Porcine skin ,Berylliosis ,Eyeglasses ,in-vitro study ,Alloy ,Alloys ,Humans ,Beryllium ,Eyeglasse ,Copper ,Berylliosi ,Human - Abstract
Dermal exposure to hazardous substances such as chemicals, toxics, metallic items and other contaminants may present substantial danger for health. Beryllium (Be) is a hazardous metal, especially when inhaled and/or in direct contact with the skin, associated with chronic beryllium disease (CBD) and Be sensitization (BeS). The objective of this study was to investigate the percutaneous penetration of beryllium and copper contained in metallic items as eyeglass temple tips (specifically BrushCAST (R) Copper Beryllium Casting Alloys containing Be 0.35 < 2.85%; Cu 95.3-98.7%), using Franz diffusion cells. This work demonstrated that the total skin absorption of Cu was higher (8.86%) compared to Be (4.89%), which was expected based on the high percentage of Cu contained in the eyeglass temple tips. However, Be accumulated significantly in the epidermis and dermis (up to 0.461 mu g/cm(2)) and, to a lesser extent, in the stratum corneum (up to 0.130 mu g/cm2) with a flux of permeation of 3.52 +/- 4.5 mu g/cm(2)/hour and lag time of 2.3 +/- 1.3 h, after cutaneous exposure of temple tip into 1.0 mL artificial sweat for 24 h. Our study highlights the importance of avoiding the use of Be alloys in items following long-term skin contact.
- Published
- 2022