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Surface Modification of Metallic Nanoparticles

  • Vignesh NagarajanEmail author
  • Tafadzwa Justin Chiome
  • Sanjay Sudan
Chapter

Abstract

Nanomaterials are particles with various characteristic shapes, dimensions ranging from zero-dimensional to three-dimensional structures, and sizes ranging between 1 nm and 100 nm. The properties of nanomaterials are due to this small size, which thereby increases their surface area and reactivity. This nanoscale size of particles results in different properties than those of the corresponding bulk material, such as mechanical strength, optical properties, magnetic susceptibility, and electrical conductivity. The specific surface area of a spherical nanoparticle increases by 1/10; modest-size nanoparticles have a high surface-to-mass ratio and hence a high interfacial energy. The high reactive surface area of the nanomaterial can be modified by the choice of application for a certain industry. The most widely used nanomaterials in various industries are metals and metal oxides due to their unique changes in properties and characteristic features compared with their respective bulk materials. Because of their high reactivity and high available surface area, nanoparticles usually tend to be unstable. To avoid aggregation, it is often recommended to stabilize or functionalize such nanoparticles to improve the shelf life of a nanomaterial. Thus, modification of the surface of nanoparticles is an important chemical step that adds value to the final product. This chapter discusses various methods of surface modification, how metals and metal nanoparticles can be protected by using surfactants, and how the biocompatibility of these ligands can be used to introduce novel functionalities that broaden the range of application.

Keywords

Induction coupled plasma Surface charge Thiol group Polymer nanoparticles Gold nanoparticles TiO2 SiO2 Functionalized nanocomposites Synthesis Silver Stabilized Nanofillers Polymers 

Notes

Acknowledgement

We thank Saveer Biotech for the opportunity to write a chapter with an esteemed pharmacologist, as well as Justin Chiome, Vignesh Nagarjan’s parents, and Parvati Palankar for their support in carrying forward this modern field of science.

References

  1. 1.
    Schmitt Pauly, C., Genix, A.-C., Alauzun, J. G., Sztucki, M., Oberdisse, J., & Mutin, P. H. (2015). Surface modification of alumina-coated silica nanoparticles in aqueous sols with phosphonic acids and impact on nanoparticle interactions. Physical Chemistry Chemical Physics, 17(29), 19173–19182.CrossRefGoogle Scholar
  2. 2.
    Vert, M., Doi, Y., Hellwich, K.-H., Hess, M., Hodge, P., Kubisa, P., et al. (2012). Terminology for biorelated polymers and applications (IUPAC recommendations 2012). Pure and Applied Chemistry, 84(2), 377–410.CrossRefGoogle Scholar
  3. 3.
    Arzt, E. (1998). Size effects in materials due to microstructural and dimensional constraints: A comparative review. Acta Materialia, 46(16), 5611–5626.CrossRefGoogle Scholar
  4. 4.
    Steinhögl, W., Schindler, G., Steinlesberger, G., & Engelhardt, M. (2002). Size-dependent resistivity of metallic wires in the mesoscopic range. Physical Review B, 66(7), 075414.CrossRefGoogle Scholar
  5. 5.
    Patzke, G. R., Zhou, Y., Kontic, R., & Conrad, F. (2011). Oxide nanomaterials: Synthetic developments, mechanistic studies, and technological innovations. Angewandte Chemie International Edition, 50(4), 826–859.CrossRefGoogle Scholar
  6. 6.
    Rodriguez, J. A., & Fernandez-Garcia, M. (2007). Synthesis, properties, and applications of oxide nanomaterials. Hoboken, NJ: Wiley.CrossRefGoogle Scholar
  7. 7.
    van Ooij, W. J., & Chityala, A. (2000). In K. L. Mittal (Ed.), Surface modification of powders by plasma polymerization (p. 243). Utrecht: VSP.Google Scholar
  8. 8.
    van Ooij, W. J., Zhang, N., & Guo, S. (1999). In J. P. Blitz & C. B. Little (Eds.), Fundamental and applied aspects of chemically modified surfaces (p. 191). Cambridge: Royal Society of Chemistry.Google Scholar
  9. 9.
    Forrest, J., Dalnoki-Veress, K., Stevens, J., & Dutcher, J. (1996). Effect of free surfaces on the glass transition temperature of thin polymer films. Physical Review Letters, 77(10), 2002.CrossRefGoogle Scholar
  10. 10.
    Pankhurst, Q. A., Connolly, J., Jones, S., & Dobson, J. (2003). Applications of magnetic nanoparticles in biomedicine. Journal of Physics D: Applied Physics, 36(13), R167.CrossRefGoogle Scholar
  11. 11.
    Kelly, K. L., Coronado, E., Zhao, L. L., & Schatz, G. C. (2003). The optical properties of metal nanoparticles: The influence of size, shape, and dielectric environment. The Journal of Physical Chemistry B, 107(3), 668–677.CrossRefGoogle Scholar
  12. 12.
    Schmitt Pauly, C., Genix, A.-C., Alauzun, J. G., Guerrero, G., Appavou, M.-S., Pérez, J., et al. (2015). Simultaneous phase transfer and surface modification of TiO2 nanoparticles using alkylphosphonic acids: Optimization and structure of the organosols. Langmuir, 31, 10966–10974.CrossRefGoogle Scholar
  13. 13.
    Siegel, R. W., (1993). Nanostructured Materials-Mind over matter, Nanostructured Materials, 3, 1–18.Google Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Vignesh Nagarajan
    • 1
    Email author
  • Tafadzwa Justin Chiome
    • 1
  • Sanjay Sudan
    • 1
  1. 1.Matrix Nano (A Saveer Group Company)Greater NoidaIndia

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