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首页> 外文期刊>Journal of Applied Polymer Science >Nanoparticle-loaded UV-blocking contact lenses
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Nanoparticle-loaded UV-blocking contact lenses

机译：装有纳米颗粒的防紫外线隐形眼镜

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摘要

We have developed a novel approach of incorporating UV-blocking features into contact lenses by dispersing nanoparticles into the lenses. The nanoparticles are prepared by controlling polymerization dynamics using chain terminating and chain transfer agents. A theoretical model is developed to predict the effect of various formulation parameters on the particle size. This approach can produce UV-blocking nanoparticles of controlled size below 10 nm in diameter with close to 10% conversion. The model predictions for the mean size are in reasonable agreement with the experimental data. The nanoparticles are cleaned and loaded in silicone hydrogel contact lenses by soaking the lenses in a solution of particles in ethanol and acetone. Lenses loaded with about 6% particles w/w in the hydrated lens block sufficient UV light to be classified as Class 1 blockers. The nanoparticles are retained in the lens during soaking in phosphate buffered saline (PBS) and are stable to sterilization by autoclaving. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42495.
机译：我们已经开发出一种新颖的方法，通过将纳米粒子分散到隐形眼镜中来将防紫外线功能结合到隐形眼镜中。通过使用链终止剂和链转移剂控制聚合动力学来制备纳米颗粒。建立了理论模型来预测各种配方参数对粒径的影响。这种方法可以产生直径小于10 nm的受控尺寸的紫外线阻断纳米粒子，转化率接近10％。平均尺寸的模型预测与实验数据合理吻合。通过将纳米颗粒浸泡在乙醇和丙酮中的颗粒溶液中，可以清洁纳米颗粒并将其装入硅胶水凝胶隐形眼镜中。在水合镜片中装有约6％w / w颗粒的镜片会阻挡足够的紫外线，从而被归类为1级阻滞剂。纳米颗粒在磷酸盐缓冲盐水（PBS）中浸泡期间会保留在晶状体中，并且对于通过高压灭菌进行灭菌是稳定的。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，42495。

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