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Adhesion of Microdroplets on Water-Repellent Surfaces toward the Prevention of Surface Fouling and Pathogen Spreading by Respiratory Droplets.
Jiang, Jieke; Zhang, Hengdi; He, Wenqing; Li, Tianzhong; Li, Hualin; Liu, Peng; Liu, Meijin; Wang, Zhaoyue; Wang, Zuankai; Yao, Xi.
Afiliação
  • Jiang J; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
  • Zhang H; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
  • He W; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
  • Li T; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
  • Li H; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
  • Liu P; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
  • Liu M; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
  • Wang Z; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
  • Wang Z; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
  • Yao X; Department of Biomedical Sciences, ‡School of Veterinary Medicine, and §Department of Mechanical and Biomedical Engineering, City University of Hong Kong , 83 Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
ACS Appl Mater Interfaces ; 9(7): 6599-6608, 2017 Feb 22.
Article em En | MEDLINE | ID: mdl-28121417
ABSTRACT
Biofouling caused by the adhesion of respiratory microdroplets generated in sneezing and coughing plays an important role in the spread of many infectious diseases. Although water-repellent surfaces are widely used for the long-term repellency of aqueous solutions, their repellency to pathogen-containing microdroplets is elusive. In this work, microdroplets from picoliter to nanoliter were successfully generated in a controlled manner to mimic the exhaled microdroplets in sneezing and coughing, which allowed us to evaluate the adhesion of microdroplets on both superhydrophobic and lubricant-infused "slippery" surfaces for the first time. The impact and retention of water microdroplets on the two water-repellent surfaces are compared and investigated. Microdroplet-mediated surface biofouling and pathogen transmission were also demonstrated. Our results suggested that the adhesion of microdroplets should be duly considered in the design and application of water-repellent surfaces on biofouling prevention.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Água Idioma: En Ano de publicação: 2017 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Água Idioma: En Ano de publicação: 2017 Tipo de documento: Article