Department of Mechanical Engineering, George R. Brown School of Engineering, Rice University, 6100 Main Street, Houston, Texas 77005, United States.
Department of Biosciences, Wiess School of Natural Sciences, Rice University, 6100 Main Street, Houston, Texas 77005, United States.
ACS Appl Mater Interfaces. 2023 Sep 20;15(37):44521-44532. doi: 10.1021/acsami.3c09063. Epub 2023 Sep 11.
Pandemics stress supply lines and generate shortages of personal protective equipment (PPE), in part because most PPE is single-use and disposable, resulting in a need for constant replenishment to cope with high-volume usage. To better prepare for the next pandemic and to reduce waste associated with disposable PPE, we present a composite textile material capable of thermally decontaminating its surface via Joule heating. This material can achieve high surface temperatures (>100 °C) and inactivate viruses quickly (<5 s of heating), as evidenced experimentally with the surrogate virus HCoV-OC43 and in agreement with analytical modeling for both HCoV-OC43 and SARS-CoV-2. Furthermore, it does not require doffing because it remains relatively cool near the skin (<40 °C). The material can be easily integrated into clothing and provides a rapid, reusable, in situ decontamination method capable of reducing PPE waste and mitigating the risk of supply line disruptions in times of need.
大流行使供应链承受压力，并导致个人防护设备 (PPE) 短缺，部分原因是大多数 PPE 是一次性使用的，因此需要不断补充以应对高用量。为了更好地为下一次大流行做准备，并减少与一次性 PPE 相关的浪费，我们提出了一种复合纺织材料，能够通过焦耳加热对其表面进行热消毒。该材料能够实现高表面温度 (>100°C)，并能快速使病毒失活(<5 秒的加热时间)，这一点已通过替代病毒 HCoV-OC43 得到实验证实，并且与针对 HCoV-OC43 和 SARS-CoV-2 的分析模型一致。此外，由于它在靠近皮肤的地方仍保持相对凉爽(<40°C)，因此无需脱下。这种材料可以很容易地集成到服装中，提供了一种快速、可重复使用的就地消毒方法，能够减少 PPE 的浪费，并在需要时减轻供应线中断的风险。
