用 365 纳米紫外线灯照射 PMMA 眼内透镜

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-07-03 DOI:10.1515/ipp-2024-0029

Alfio Torrisi, A.M. Roszkowska, M. Cutroneo, L. Silipigni, L. Torrisi

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引用次数: 0

摘要

摘要聚甲基丙烯酸甲酯（PMMA）制成的眼内透镜（IOL）在空气中和室温下经过紫外线灯不同时间的照射。使用衰减全反射（ATR）耦合傅立叶变换红外（FT-IR）光谱和光学光谱对镜片中诱导的大分子修饰进行了研究。研究人员特别关注了紫外线照射引起的化学修饰，紫外线照射会在 PMMA 表层引起链裂解。结果表明，在 200 mJ/cm2 的紫外线辐射下长时间暴露长达 19 小时，镜片对可见光的透射率并不会特别降低。

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Irradiation of PMMA intraocular lenses by a 365 nm UV lamp

Abstract Intraocular lens (IOL) made on Polymethylmethacrylate (PMMA) has been irradiated by a UV lamp at different exposure times, in air and at room temperature. The macromolecular modifications induced in the lens have been investigated using attenuated total reflectance (ATR) coupled to Fourier transform infrared (FT-IR) spectroscopy and Optical spectroscopy. Particular attention was devoted to the study of chemical modifications by UV irradiation, which induced chain scissions in the superficial PMMA layers. Results demonstrated that the lens transmission to the visible radiation is not particularly reduced by a long exposition to UV radiation at a fluence of 200 mJ/cm2, up to 19 h.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.