Abstract
Droplets suspended by acoustic levitation provide genuine substrate-free environments for understanding unconventional fluid dynamics, evaporation kinetics, and chemical reactions by circumventing solid surface and boundary effects. Using a fully levitated air-water interface by acoustic levitation in conjunction with drying-mediated nanoparticle self-assembly, here, we Savedemonstrate a general approach to fabricating free-standing nanoassemblies, which can totally avoid solid surface effects during the entire process. This strategy has no limitation for the sizes or shapes of constituent metallic nanoparticle building blocks and can also be applied to fabricate free-standing bilayered and trilayered nanoassemblies or even three-dimensional hollow nanoassemblies. We believe that our strategy may be further extended to quantum dots, magnetic particles, colloids, etc. Hence, it may lead to a myriad of homogeneous or heterogeneous free-standing nanoassemblies with programmable functionalities.
| Original language | English |
|---|---|
| Number of pages | 8 |
| Journal | ACS Nano |
| DOIs | |
| Publication status | Accepted/In press - 10 Apr 2019 |
Keywords
- DNA
- free-standing
- gold nanoparticles
- levitation
- nanoassembies
- self-assembly
Cite this
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A general approach to free-standing nanoassemblies via acoustic levitation self-assembly. / Shi, Qianqian; Di, Wenli; Dong, Dashen; Yap, Lim Wei; Li, Lin; Zang, Duyang; Cheng, Wenlong.
In: ACS Nano, 10.04.2019.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - A general approach to free-standing nanoassemblies via acoustic levitation self-assembly
AU - Shi, Qianqian
AU - Di, Wenli
AU - Dong, Dashen
AU - Yap, Lim Wei
AU - Li, Lin
AU - Zang, Duyang
AU - Cheng, Wenlong
PY - 2019/4/10
Y1 - 2019/4/10
N2 - Droplets suspended by acoustic levitation provide genuine substrate-free environments for understanding unconventional fluid dynamics, evaporation kinetics, and chemical reactions by circumventing solid surface and boundary effects. Using a fully levitated air-water interface by acoustic levitation in conjunction with drying-mediated nanoparticle self-assembly, here, we Savedemonstrate a general approach to fabricating free-standing nanoassemblies, which can totally avoid solid surface effects during the entire process. This strategy has no limitation for the sizes or shapes of constituent metallic nanoparticle building blocks and can also be applied to fabricate free-standing bilayered and trilayered nanoassemblies or even three-dimensional hollow nanoassemblies. We believe that our strategy may be further extended to quantum dots, magnetic particles, colloids, etc. Hence, it may lead to a myriad of homogeneous or heterogeneous free-standing nanoassemblies with programmable functionalities.
AB - Droplets suspended by acoustic levitation provide genuine substrate-free environments for understanding unconventional fluid dynamics, evaporation kinetics, and chemical reactions by circumventing solid surface and boundary effects. Using a fully levitated air-water interface by acoustic levitation in conjunction with drying-mediated nanoparticle self-assembly, here, we Savedemonstrate a general approach to fabricating free-standing nanoassemblies, which can totally avoid solid surface effects during the entire process. This strategy has no limitation for the sizes or shapes of constituent metallic nanoparticle building blocks and can also be applied to fabricate free-standing bilayered and trilayered nanoassemblies or even three-dimensional hollow nanoassemblies. We believe that our strategy may be further extended to quantum dots, magnetic particles, colloids, etc. Hence, it may lead to a myriad of homogeneous or heterogeneous free-standing nanoassemblies with programmable functionalities.
KW - DNA
KW - free-standing
KW - gold nanoparticles
KW - levitation
KW - nanoassembies
KW - self-assembly
UR - http://www.scopus.com/inward/record.url?scp=85062244035&partnerID=8YFLogxK
U2 - 10.1021/acsnano.8b09628
DO - 10.1021/acsnano.8b09628
M3 - Article
JO - ACS Nano
JF - ACS Nano
SN - 1936-0851
ER -