Skip to main content
Log in

Accumulation mechanism of nanoparticles around photothermally generated surface bubbles

  • Research paper
  • Published:
Journal of Nanoparticle Research Aims and scope Submit manuscript

Abstract

Microbubbles generated by the photothermal conversion using a laser beam induce strong convective flow and can accumulate nanoparticles over a long distance. This study investigates the accumulation process of nanoparticles with a diameter of 100 and 300 nm using two experimental setups that enable bottom- and lateral-view observations. The bottom-view and SEM observations reveal that the particles are accumulated at and near the three-phase contact line. The bottom-view observation also shows that the particle deposition at an early stage is not axisymmetric, which contradicts a model proposed earlier. The asymmetric accumulation is also observed by the lateral view. The lateral view further reveals that the particles in bulk first adhered to the bubble surface and moved to the three-phase contact line by interfacial flow. It is also suggested that the amount of the particles accumulated on the surface is not proportional to the bubble volume (bubble radius to the third power) but proportional to the bubble radius to the fourth power. This is explained by a difference in temperature distribution on the bubble surfaces.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

Availability of data, material, and code

The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.

References

Download references

Funding

This work was supported by JSPS KAKENHI Grant Number 19H02084 and 19K21936.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Masahiro Motosuke.

Ethics declarations

Ethics approval

Not applicable.

Consent to participate

Not applicable.

Consent for publication

Not applicable.

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (PDF 960 KB)

Supplementary file1 (AVI 21777 KB)

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Okada, K., Kodama, K., Yamamoto, K. et al. Accumulation mechanism of nanoparticles around photothermally generated surface bubbles. J Nanopart Res 23, 188 (2021). https://doi.org/10.1007/s11051-021-05305-2

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s11051-021-05305-2

Keywords

Navigation