杀病毒涂层对抗SARS-CoV-2具有活性
Anna I Barabanova1, Eduard V Karamov2, Viktor F Larichev2
1Institute of Organoelement Compounds, 119991 Moscow, Russia.
Molecules (Basel, Switzerland)
|October 26, 2024
概括
基于释放或结合作用的抗病毒涂层有效地使SARS-CoV-2无活化. 基于接触的涂层显示有效性有限,这表明免费消毒剂对病毒更有效.
科学领域:
- 材料科学 材料科学 材料科学
- 病毒学 病毒学
- 表面化学 表面化学
背景情况:
- 四级化合物是广泛使用的消毒剂.
- 开发有效的抗病毒表面对于感染控制至关重要.
研究的目的:
- 评估不同基于四级表面活性剂的涂层对SARS-CoV-2的有效性.
- 为了比较基于接触,基于释放和联合作用的涂层的抗病毒活性.
主要方法:
- 玻璃和表面的制备与共连接或非共结合的四元表面活性剂.
- 使用减弱总反射红外光谱学,X射线光电子光谱学 (XPS),扫描电子显微镜和接触角测量进行表面表征.
- 通过病毒定位评估SARS-CoV-2无活化.
主要成果:
- 组合和基于释放的作用涂层完全禁用了SARS-CoV-2.
- 基于接触的涂层由于消毒剂密度低,其有效性有限 (降低1.25 log10).
- 与自由消毒剂相比,将消毒剂结合到表面,特别是纳米颗粒,降低了它们的抗病毒活性.
结论:
- 使用基于释放或组合无活化机制的表面对SARS-CoV-2具有高度有效性.
- 一个单层中的共价结合的消毒剂效果不如那些具有释放能力的消毒剂.
- 与表面结合的消毒剂相比,自由消毒剂对SARS-CoV-2的有效性更高.
相关概念视频
Self-Evaluation: Self-Enhancement and Self-Verification
4.7K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
4.7K
General State of Stress
916
The general state of stress within a material can be accurately depicted using a stress tensor. This tensor encapsulates the internal forces distributed within a material subjected to external forces or deformations.
Specifically, consider a tetrahedral element where one face, labeled XYZ, is perpendicular to the line OA, and the remaining faces align with the coordinate axes with point O as the origin. At any point, such as point O, the stress tensor can be used to determine the stress...
Specifically, consider a tetrahedral element where one face, labeled XYZ, is perpendicular to the line OA, and the remaining faces align with the coordinate axes with point O as the origin. At any point, such as point O, the stress tensor can be used to determine the stress...
916
Ethnic Identity within a Larger Culture
412
Adolescents from ethnic minority backgrounds face a multifaceted journey in forming their identities, shaped by the intersections of cultural expectations and personal exploration. For these adolescents, identity formation involves not only typical developmental challenges but also navigating the perceptions and attitudes of the majority culture. As they grow, adolescents in ethnic minority groups often become increasingly aware of stereotypes, social biases, and discrimination, all of which...
412
Introduction to Stress and Lifestyle
861
Stress is a multifaceted response to events perceived as challenging or threatening, highlighting physical, emotional, cognitive, and behavioral reactions. Physically, stress can lead to fatigue, sleep disruptions, and various health issues such as frequent colds, chest pains, and nausea. Emotionally, it can manifest as anxiety, depression, irritability, and anger triggered by both minor and major life events. Cognitively, it may result in difficulty in concentration, memory, and...
861
Psychological Responses to Stress
976
Psychological responses to stress encompass the various cognitive and emotional reactions individuals experience when faced with challenging or threatening situations, such as a job loss. Prolonged exposure to stressors can disturb emotional balance, increasing negative emotions (e.g., anxiety and sadness) and diminishing positive emotions (e.g., joy and satisfaction). These persistent emotional shifts are associated with an increased risk of both physical illness and mental health issues, such...
976
Stress and Mental Health
1.7K
Chronic stress profoundly affects mental health, significantly influencing mood, behavior, and overall quality of life. Research closely links chronic stress with mental health conditions such as depression, anxiety, and substance use disorders. Ongoing exposure to stress can lead to physiological and psychological changes, initiating a cycle of emotional distress and maladaptive coping mechanisms.
Individuals with depression often experience challenges in both their personal and professional...
Individuals with depression often experience challenges in both their personal and professional...
1.7K


