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Related Concept Videos

Surface Active Agents01:27

Surface Active Agents

Surfactants, named for their behavior at interfaces, positively adsorb at the interfaces of two phases, reducing interfacial tension. Their versatility as emulsifiers, detergents, and foaming agents stems from this ability. Surfactants, often termed amphiphiles, share the property of amphipathy, with molecules having both hydrophilic and hydrophobic portions. The hydrophilic part is called the head, and the hydrophobic part, including an elongated alkyl substituent, forms the tail.Surfactants...
Surface Tension01:24

Surface Tension

Surface tension is defined as the force per unit length (γ) acting along the surface of a liquid. It arises due to strong intermolecular forces of attraction. A molecule located inside the bulk of the liquid is surrounded by other molecules and experiences equal forces in all directions. However, a molecule at the surface experiences unbalanced forces because there are more neighboring molecules below than above. This creates a net inward force that pulls surface molecules toward the interior,...

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Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices
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Published on: March 27, 2019

Characterisation of surface wettability based on nanoparticles.

Nan Gao1, Yuying Yan

  • 1Energy and Sustainability Research Division, Faculty of Engineering, The University of Nottingham, Nottingham, UK.

Nanoscale
|March 7, 2012
PubMed
Summary

Nanoparticles enable versatile functional surfaces, creating superhydrophobic and superhydrophilic properties. This review explores nanoparticle methods for controlling surface wettability and structure.

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Area of Science:

  • Materials Science
  • Surface Chemistry
  • Nanotechnology

Background:

  • Nanoparticles offer versatile solutions for creating functional surfaces beyond simple size reduction.
  • They are key in constructing superhydrophobic and superhydrophilic surfaces with micro/nano-scaled structures.
  • Nanoparticle modification significantly impacts the properties of resulting surface structures.

Purpose of the Study:

  • To review recent advancements in using nanoparticles for fabricating extremely wettable/non-wettable surfaces.
  • To analyze the influence of nanoparticle-structured surfaces on overall surface wettability.
  • To provide an engineer/scientist perspective on nanoparticle applications in surface engineering.

Main Methods:

  • Discussion of typical methodologies for nanoparticle utilization in surface fabrication.
  • Exploration of preparation and functionalization processes for achieving desired surface wettabilities.
  • Analysis of size-determined phenomena influencing wettable/non-wettable surface characteristics.

Main Results:

  • Nanoparticle-based approaches are crucial for designing surfaces with controlled wettability.
  • Surface structure and wettability are significantly influenced by nanoparticle characteristics and arrangement.
  • Multidisciplinary approaches highlight the potential of nanoparticle-structured surfaces.

Conclusions:

  • Nanoparticles are pivotal in engineering advanced surface wettability.
  • Understanding nanoparticle-surface interactions is key to developing novel functional materials.
  • This review offers insights into the relationship between nanoparticles and surface wettability for future research.