1 nm‐Resolution Sorting of Sub‐10 nm Nanoparticles Using a Dielectric Metasurface with Toroidal Responses
Sorting nanoparticles is of paramount importance in numerous physical, chemical, and biomedical applications. Current technologies for sorting dielectric nanoparticles have a common size limit and resolution approximately of 20 and 10 nm, respectively. It remains a grand challenge to push the limit. Herein, the new physics that deploys toroidal and multipole responses in a dielectric metasurface to exert strong and distinguishable optical forces on sub‐10 nm nanoparticles is unravelled. The electric toroidal dipole, electric dipole, and quadrupole emerge with distinct light and force patterns, which can be leveraged to promise unprecedented high‐precision manipulations, such as sorting sub‐10 nm polystyrene nanoparticles at 1 nm resolution, sorting 20 nm proteins/exsomes at 3 nm resolution, conveying, and concentrating 100 nm gold nanoparticles. Remarkably, the design can also be employed to screen out medium‐sized nanoparticles from a mixture of nanoparticles with over three sizes. This optofluidic manipulation platform opens the new way to explore intriguing optical modes for the powerful manipulation of nanoparticles with nanometer precisions and low laser powers.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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1 nm‐Resolution Sorting of Sub‐10 nm Nanoparticles Using a Dielectric Metasurface with Toroidal Responses ; day:17 ; month:08 ; year:2023 ; extent:9
Small science ; (17.08.2023) (gesamt 9)
- Creator
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Luo, Hong
Fang, Xiang
Li, Chengfeng
Dai, Xinhua
Ru, Ning
You, Minmin
He, Tao
Wu, Pin Chieh
Wang, Zhanshan
Shi, Yuzhi
Cheng, Xinbin
- DOI
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10.1002/smsc.202300100
- URN
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urn:nbn:de:101:1-2023081815272854987801
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:59 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Luo, Hong
- Fang, Xiang
- Li, Chengfeng
- Dai, Xinhua
- Ru, Ning
- You, Minmin
- He, Tao
- Wu, Pin Chieh
- Wang, Zhanshan
- Shi, Yuzhi
- Cheng, Xinbin
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