Influence of thermal fluctuations on the interactions between nanoscale particles
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We present a method to investigate the influences of the thermal fluctuations on the nanometer-sized particle in pickup manipulation by an atomic force microscope (AFM). We show that thermal fluctuations can play an important and even major role in the interaction between particles at room temperature. Moreover, thermal fluctuations always have an opposing effect on the particle interactions. The deterministic directional motion of a particle governed by the interfacial properties of the nanoparticles becomes non-deterministic, with a reduction of the adhesion probability up to 44% under different strength of the thermal fluctuations.
KeywordsThermal fluctuations Nanoparticle Capillary force Adhesion probability Environmental applications
We gratefully acknowledge Drs. Bo Song and Chunlei Wang for their helpful discussions.
This work was supported by the National Natural Science Foundation of China under Grant No. 61307096, No. 11665007, and No. 61565002; the Guangxi Natural Science Foundation Program No. 2014GXNSFBA118282; and the Guangxi province Higher Educational Science and Technology program No. D20140213.
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Conflict of interest
The authors declare that they have no conflict of interest.
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