首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Survival of Microorganisms on Nonwovens Used for the Construction of Filtering Facepiece Respirators
【2h】

Survival of Microorganisms on Nonwovens Used for the Construction of Filtering Facepiece Respirators

机译:用于过滤式口罩呼吸器的无纺布上微生物的存活

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

Filtering nonwovens that constitute the base material for filtering facepiece respirators (FFRs) used for the protection of the respiratory system against bioaerosols may, in favourable conditions, promote the development of harmful microorganisms. There are no studies looking at the impact that different types of filtering nonwovens have on microorganism survival, which is an important issue for FFR producers and users. Five commercial filtering nonwovens manufactured using diverse textile technologies (i.e., needle-punching, melt-blown, spun-bonding) with different structural parameters and raw material compositions were used within our research. The survival of microorganisms on filtering nonwovens was determined for E. coli, S. aureus, B. subtilis bacteria; C. albicans yeast and A. niger mould. Samples of nonwovens were collected immediately after inoculum application (at 0 h) and after 4, 8, 24, 48, 72, and 96 h of incubation. The tests were carried out in accordance with the AATCC 100-1998 method. Survival depended strongly on microorganism species. E. coli and S. aureus bacteria grew the most on all nonwovens tested. The structural parameters of the nonwovens tested (mass per unit area and thickness) and contact angle did not significantly affect microorganism survival.
机译:构成用于过滤面罩呼吸器(FFR)的基础材料的过滤无纺布可在有利条件下用于保护呼吸系统免受生物气溶胶的侵害,这些呼吸器可保护有害微生物。没有研究关注不同类型的过滤非织造布对微生物存活的影响,这对于FFR生产者和使用者而言是一个重要的问题。在我们的研究中,使用了五种使用多种纺织技术(即针刺,熔喷,纺粘)制造的商业化过滤非织造布,它们具有不同的结构参数和原料成分。确定大肠杆菌,金黄色葡萄球菌,枯草芽孢杆菌细菌在过滤无纺布上的微生物存活率;白色念珠菌酵母和黑曲霉霉菌。接种后(0小时)以及孵育4、8、24、48、72和96小时后立即收集非织造布样品。根据AATCC 100-1998方法进行测试。生存很大程度上取决于微生物种类。在所有测试的非织造布上,大肠杆菌和金黄色葡萄球菌的生长最快。测试的非织造布的结构参数(每单位面积的质量和厚度)和接触角不会显着影响微生物的存活。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号