一种基于聚合物的去除软隐形眼镜污染物的技术。

ty10086 提交于 周三, 08/25/2021 - 17:17
文章英文标题
A polymer-based technique to remove pollutants from soft contact lenses.
正文
演示一种替代冲洗和擦拭( RR )方法清洗软隐形眼镜外表面污染物。该技术是利用聚二甲基硅氧烷( PDMS )的弹性特性,通过非粘着解胶的方法物理去除接触镜片表面的污染物,称为聚合物污染物去除技术( PoPPR )。采用PoPPR方法,以市售的多用途镜片清洗液为对照,研究了3种不同配比( 1:30、1:40和1:50 )的定形剂与聚合物PDMS的配比。采用花粉( 25 ~ 40μm )、微珠( 1 ~ 5μm )和纳米颗粒( 5 ~ 10 nm ) 3种不同粒径的模拟污染物对两种清洗方法的有效性进行了测试。记录各接触镜片去除污染物的分数并进行显著性评价,发现PDMS 1∶40为PoPPR法清洗镜片的最佳配比。对于较大颗粒( \u003e 10μm ),常规RR法与PoPPR法无差异( p \u003e 0.05 )。然而,与RR方法相比,新的PoPPR技术对PM2.5小颗粒( \u003c 2.5μm )的去除效果明显更好,特别是对微球( p = 0.006 )和纳米颗粒( p \u003c 0.001 ),这一概念证明工作表明,PoPPR方法清洗隐形眼镜的效果与传统的花粉等大颗粒清洗方法一样。PoPPR法更有效地去除极细颗粒污染物,包括微塑料和纳米颗粒。这种方法提供了一种潜在的更有效的清洁方案,可以加强接触镜使用者,特别是那些生活在空气污染严重地区的使用者的安全、健康和舒适。
文章内容(英文)
To demonstrate an alternative to the rinse and rub (RR) method for cleaning pollutants from the exterior surface of soft contact lenses. This proposed technique is termed Polymer on Polymer Pollutant Removal (PoPPR), which utilizes the elastic properties of polydimethylsiloxane (PDMS) to physically remove contaminants from contact lens surfaces through non-adhesive unpeeling.;Three different ratios of setting agent to polymer PDMS (1:30, 1:40, and 1:50) were evaluated using the PoPPR method against the control method of RR with a commercial multi-purpose lens cleaning solution. Three simulated pollutants of different sizes: pollen (25-40 μm), microbeads (1-5 μm), and nanoparticles (5-10 nm), were used to test the effectiveness of both cleaning methods. The fraction of pollutants removed from each contact lens was recorded and evaluated for significance.;PDMS 1:40 was found to be the optimal ratio for lens cleaning using the PoPPR method. For larger particles (\u003e10 μm), no difference was observed between conventional RR and proposed PoPPR method (p \u003e 0.05). However, the new PoPPR technique was significantly better at removing small PM2.5 particles (\u003c2.5 μm) compared to the RR method, specifically for microbeads (p = 0.006) and nanoparticles (p \u003c 0.001).;This proof-of-concept work demonstrates that the PoPPR method of cleaning contact lenses is as effective as the conventional cleaning method for larger particles such as pollen. The PoPPR method is more effective at removing extremely fine particulate pollutants, including microplastics and nanoparticles. This method offers a potentially more efficient cleaning protocol that could enhance the safety, health, and comfort of contact lens users, especially those living in regions with significant air pollution.
来源出处
Journal|[J]Contact Lens and Anterior Eye2020. PP 101335-101335
DOI
https://doi.org/10.1016/J.CLAE.2020.05.004

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信息更新:

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此链接为PDMS-微流控芯片/PDMS/道康宁SYLGARD184/小桶0.5KG装的链接。

一般性的产品性能参数表参考以下小桶装的参数:

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品牌型号:道康宁SYLGARD184

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产品颜色:保质期限:36个月

存放环境说明:室温,阴凉处保存

备注说明:

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