UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Indirect cytotoxicity evaluation of silver doped bioglass Ag-S70C30 on human primary keratinocytes

Lohbauer, U; Jell, G; Saravanapavan, P; Jones, JR; Hench, LL; (2005) Indirect cytotoxicity evaluation of silver doped bioglass Ag-S70C30 on human primary keratinocytes. BIOCERAMICS 17 , 17 431 - 434.

Full text not available from this repository.

Abstract

Bioactive gel-glasses, such as the silver-doped Ag-S70C30 glass, can be used to modify the inflammatory response in a local body compartment such as in acne lesions and in non-healing dermal wounds. In this study, the cytotoxicity of soluble silver, calcium and silica ions on human epidermal keratinocytes was investigated by measurements of mitochondrial activity (MTT assay) and neutral red dye uptake (NR assay). Ag-S70C30 extracts were prepared by soaking glass powder in complete culture medium at concentrations of 1 mg/ml and 2 mg/ml (mg of glass powder per ml of culture medium). Silver concentrations for both concentrations of approximately 1 ppm were detected by inductive coupled plasma analysis (ICP). No negative effect on the cell viability was measured for an initial gel-glass concentration of 1 mg/ml and for the two shortest extraction times at a concentration of 2 mg/ml.Based on the results from MTT/NR assays, a pH rise of approximately one unit had no negative effect on the NHEK-A cell viability. This preliminary study on keratinocyte viability merits future investigations on silver bioglass as a novel antimicrobial wound healing agent.

Type:Article
Title:Indirect cytotoxicity evaluation of silver doped bioglass Ag-S70C30 on human primary keratinocytes
Location:New Orleans, LA
Keywords:bioactive glass, cytotoxicity, keratinocytes, soluble ions, wound healing, GLASSES
UCL classification:UCL > School of Life and Medical Sciences > Faculty of Medical Sciences > Surgery and Interventional Science (Division of) > Research Department of General Surgery

Archive Staff Only: edit this record