Free radicals from plastic syringes

We have found that disposable sterile plastic syringes can leach free radicals into the fluids they hold. The free radical we observe appears to be a nitroxide (aminoxyl radical) because in aqueous solution it produces a 1:1:1 three line spectrum with a hyperfine splitting constant of 16.9 G.

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Bibliographische Detailangaben
Veröffentlicht in:	Free radical biology & medicine 1991, Vol.11 (1), p.69-70
Hauptverfasser:	Buettner, Garry R., Scott, Brook D., Kerber, Richard E., Mügge, Andreas
Format:	Artikel
Sprache:	eng
Schlagworte:	560300 - Chemicals Metabolism & Toxicology AQUEOUS SOLUTIONS Biological and medical sciences CHALCOGENIDES DEVOLATILIZATION DISPERSIONS DISSOLUTION ELECTRON SPIN RESONANCE Electron Spin Resonance Spectroscopy ESR Free Radicals HAZARDS HEALTH HAZARDS LEACHING MAGNETIC RESONANCE MATERIALS Medical sciences MIXTURES NITROGEN COMPOUNDS NITROGEN OXIDES Nitrogen Oxides - analysis OXIDES OXYGEN COMPOUNDS PETROCHEMICALS PETROLEUM PRODUCTS PLASTICS RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT RADICALS Radiotherapy. Instrumental treatment. Physiotherapy. Reeducation. Rehabilitation, orthophony, crenotherapy. Diet therapy and various other treatments (general aspects) RESONANCE SEPARATION PROCESSES SOLUTIONS Sterilization SYNTHETIC MATERIALS Syringes Technology. Biomaterials. Equipments. Material. Instrumentation
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Beschreibung
Zusammenfassung:	We have found that disposable sterile plastic syringes can leach free radicals into the fluids they hold. The free radical we observe appears to be a nitroxide (aminoxyl radical) because in aqueous solution it produces a 1:1:1 three line spectrum with a hyperfine splitting constant of 16.9 G.
ISSN:	0891-5849 1873-4596
DOI:	10.1016/0891-5849(91)90189-A