Current strategies for spatial control of nanoparticle deposition on surfaces.

• DOI: https://doi.org/10.22533/at.ed.13176626040613

• Palavras-chave: controlled deposition, nanoparticles, spatial control, 3D printing, functional materials.

• Keywords: controlled deposition, nanoparticles, spatial control, 3D printing, functional materials.

• Abstract:

  Controlling the deposition of particles at the micro- and nano-scale represents one of the main challenges in materials engineering, due to its direct impact on the functional properties of advanced surfaces. Despite the development of various deposition techniques, such as electrodeposition, electrophoretic deposition, and lithography, limitations persist regarding the precise localization of the material, or these processes are often very costly, operationally complex, and difficult to access. Likewise, approaches such as self-assembly allow for the formation of organized structures but present constraints in spatial control and reproducibility.
  In this context, this work reviews the main strategies employed to direct particle organization, highlighting their advantages and limitations. It examines the importance of spatial control in nanoparticle deposition, as well as the role of patterns in the formation of functional structures. Based on this research, the use of hybrid methods is proposed as an accessible alternative to induce geometric confinement, modify nucleation processes, and promote localized deposition.
  Finally, the potential of these strategies for developing surfaces with controlled properties is discussed, as well as the challenges associated with structural stability and the integration of sacrificial materials. This approach contributes to the understanding of new pathways for the design of functional materials with applications in various areas of engineering.