期刊
ACS NANO
卷 9, 期 4, 页码 3721-3727出版社
AMER CHEMICAL SOC
DOI: 10.1021/nn5063112
关键词
adhesion; polymeric nanofibers; fine particulate matters; dry adhesion
类别
资金
- National Natural Science Foundation of China [51373007, 51003004]
- Beijing Natural Science Foundation [2142019]
- National Basic Research Program of China [2010CB934700, 2012CB933200]
- Fundamental Research Funds for the Central Universities
- SRF for ROCS, SEM
Inspired by dusty spider dragline silk, we studied the adhesive interaction between artificial nanofibers and their aerosol surroundings. The nanofibers are found to be able to actively capture particulate matters from the environment, exactly as the spider dragline silk does. Examinations prove that such nanofibrous adhesion is insensitive to the chemical nature of the fibers and the physical states of the particulate matter and depends only on the fiber diameters. Such facts indicate that nanofibrous adhesion is a case of dry adhesion, mainly governed by van der Waals force, sharing the same mechanism to gecko adhesion. Nanofibrous adhesion is of great importance and has promising potential. For instance, in this work, nanofibers are fabricated into a thin and translucent filter, which has a filtration performance, as high as 95%, that easily outperformed ordinary ones. We believe that this adhesive property of nanofibers will open up broader applications in both scientific and industrial fields.
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