Dear Colleagues,

Particle deposition denotes an arrival of solid or liquid particles suspended in a fluid onto a wall (a gas-solid or gas-liquid interface) followed by a stable attachment of the particles. Particle deposition has attracted the attention of people for a long time from industrial viewpoints including pigment painting, surface contamination by dust, etc. Deposition of particles of the nanometer scale is becoming of greater interest lately. Even a very trace amount of deposited nanoparticles can cause serious problems in certain manufacturing and machining processes that require high precision at a molecular or nanometer scale level. While a conventional process to fabricate functional thin-film materials on a substrate is the continuous building-up of atoms or molecules on the substrate, attempts to enhance the production rate and functionality of the materials by incorporating the deposition of engineered nanoparticles into the process are becoming an active area of research. In addition, unintentional deposition on the respiratory organs or skins of a human is also an issue of growing concern in association with the increasing opportunities of the use of nanoparticulate materials. Particle deposition is driven by the mechanisms in which fluid motion and various forces related to particle transport and attachment are integrated. For any of the desirable and undesirable nanoparticle depositions mentioned above, peculiar characteristics of the deposition mechanisms owing to the extremely small particle size need to be understood sufficiently. This Special Issue will cover recent advances in the investigation of the deposition mechanisms, control and prevention of particle deposition, and evaluation of the effects of deposition upon the walls and the human organs onto which deposition took place.

Prof. Dr. Manabu Shimada
Guest Editor

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• convective transport in laminar and turbulent flow
• Brownian diffusion
• phoretic migration
• surface microcontamination
• inhalation toxicity of manufactured particles
• precise processing of surfaces
• functional surface synthesis
• accumulation of nanoobjects