Bactericidal effect of photo-activated riboflavin using UVA
نویسندگان
چکیده
منابع مشابه
Photodynamics of Corneal Collagen Crosslinking Using UVA- Light Activated Riboflavin
PDT is a procedure using light (often low-power laser light or LED) absorption by the external chemical agents (or photosensitizers) causing photo-chemical reactions in the treated tissues. Many photosensitizers have been developed to match the absorption peaks of light wavelengths ranging from ultraviolet (300-390 nm), visible (400-700 nm) to near-IR (700-950 nm) for applications such as in de...
متن کاملUVA-activated riboflavin improves the strength of human dentin.
The aim of this study was to evaluate the effects of UVA-activated riboflavin (UVA-RF) on the mechanical properties of non-demineralized human dentin. Dentin specimens obtained from 20 teeth were randomly divided into the following four groups: group 1 (control): no treatment, group 2 (low UVA-RF): specimens were exposed to UVA-RF for 10 min, group 3 (medium UVA-RF): specimens were exposed to U...
متن کاملUVA/riboflavin-induced apoptosis in mouse cornea.
BACKGROUND A mouse model of combined UVA/riboflavin irradiation to eliminate stromal cells and other antigen-presenting cells in the cornea provides the basis for a probably low risk of corneal transplantation. METHODS After abrasion of the epithelium, the central corneas of mouse eyes were treated with UVA/riboflavin in vitro. Histological studies of hematoxylin-eosin and immunohistochemical...
متن کاملPhoto, thermal and chemical degradation of riboflavin
Riboflavin (RF), also known as vitamin B2, belongs to the class of water-soluble vitamins and is widely present in a variety of food products. It is sensitive to light and high temperature, and therefore, needs a consideration of these factors for its stability in food products and pharmaceutical preparations. A number of other factors have also been identified that affect the stability of RF. ...
متن کاملEffect of UVA/Riboflavin Collagen Crosslinking on Biomechanics of Artificially Swollen Corneas.
Purpose The purpose of this study was to characterize the relation between corneal hydration and stiffening effects of the UVA/riboflavin collagen crosslinking treatment and to investigate how artificially swelling the cornea prior to this treatment procedure affects tensile property improvement. Methods Porcine corneas were collagen crosslinked in vitro at different hydration levels using a ...
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ژورنال
عنوان ژورنال: Graefe's Archive for Clinical and Experimental Ophthalmology
سال: 2010
ISSN: 0721-832X,1435-702X
DOI: 10.1007/s00417-009-1281-5