Cross-linking of Polyvinyl Chloride by Ultraviolet Irradiation.
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چکیده
منابع مشابه
Histopathological Finding of Cornea after Collagen Cross-Linking Using Riboflavin and Ultraviolet A in Rabbit
Purpose: To evaluate the histopathological changes of the cornea in rabbit corneas after accelerated collagen cross-linking. Methods: Right eyes of 7 adult New Zealand albino rabbits weighing 1.5 to 2.0 kg were studied. Right eyes of all animals were in the treatment group and left eyes were in the control group. The epithelium of all right eyes was removed and was crossed-linked with riboflavi...
متن کاملIntraoperative pachymetric measurements during corneal collagen cross-linking with riboflavin and ultraviolet A irradiation.
OBJECTIVE To study central corneal pachymetric variations during corneal collagen cross-linking (CXL) treatment with the use of riboflavin and ultraviolet A irradiation (UVA). DESIGN Prospective, noncomparative, interventional clinical study. PARTICIPANTS Fifteen keratoconic patients (19 eyes) were enrolled. METHODS All patients underwent riboflavin-UVA-induced corneal CXL. Intraoperative...
متن کاملCorneal Collagen Cross-Linking Using Riboflavin and Ultraviolet-A Irradiation in Keratitis Treatment
Cross-linking is a common method of tissue stabilization. For example, cross-linking is used for formaldehyde-induced tissue stiffening and fixation in pathologic specimens. Corneal collagen Crosslinking (CXL) is performed with ultraviolet-A (UVA) irradiation at 370 nm and the photosensitizer riboflavin (vitamin B2). According to Wollensak (Wollensak, 2006), the photosensitizer is excited into ...
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RATIONALE The aim of this study was to demonstrate, and to characterize by high-resolution mass spectrometry that it is possible to preferentially induce covalent cross-links in peptides by using high-energy femtosecond ultraviolet (UV) laser pulses. The cross-link is readily formed only when aromatic amino acids are present in the peptide sequence. METHODS Three peptides, xenopsin, angiotens...
متن کاملThermal Degradation of Polyvinyl Chloride
A survey is given of the recent advances in the study of and the present knowledge of the thermal degradation of polyvinyl chloride. The sites for initiation of the thermal degradation, the mechanism of the dehydrochiorination, the discolouration of PVC by heat and the influence of plasticizers on the rate of degradation are discussed.
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ژورنال
عنوان ژورنال: The Journal of the Society of Chemical Industry, Japan
سال: 1959
ISSN: 0023-2734,2185-0860
DOI: 10.1246/nikkashi1898.62.8_1149