Novel, highly selective gold nanoparticle patterning on surfaces using pure water

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Raza, Muhammad Akram and Kooij, E. Stefan and Silfhout, Arend van and Zandvliet, Harold J.W. and Poelsema, Bene (2011) Novel, highly selective gold nanoparticle patterning on surfaces using pure water. Journal of Colloid and Interface Science, 364 (2). pp. 304-310. ISSN 0021-9797

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Abstract:We present a simple, novel procedure to selectively deposit gold nanoparticles using pure water. It enables patterning of nanoparticle monolayers with a remarkably high degree of selectivity on flat as well as microstructured oxide surfaces. We demonstrate that water molecules form a thin “capping” layer on exposed thiol molecules within the mercaptan self-assembled layer. This reversible capping of water molecules locally “deactivates” the thiol groups, therewith inhibiting the binding of metallic gold nanoparticles to these specific areas. This amazing role of water molecules can be used as a tool to pattern flat as well as structured surfaces with gold nanoparticles
Item Type:Article
Copyright:© Elsevier
Faculty:
Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/80446
Official URL:http://dx.doi.org/10.1016/j.jcis.2011.08.072
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