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Dendritic nanostructures of silver: Facile synthesis, structural characterizations, and sensing applications
Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China .
Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.ORCID iD: 0000-0003-3274-6029
Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China.
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2006 (English)In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 22, no 10, 4836-4842 p.Article in journal (Refereed) Published
Abstract [en]

Silver nanodendrites are synthesized by a simple surfactant-free method using a suspension of zinc microparticles as a heterogeneous reducing agent. Structural characterizations suggest the preferential growth along  <100>  and  <111>  directions by oriented attachment of silver nanocrystals in the diffusion limit, leading to the formation of silver nanodendrites 20−30 nm in stem and branch diameter and 5−50 μm in length. Surface-enhanced Raman scattering studies show that the silver nanodentrites give an intensive and enhanced Raman scattering when pyridine was used as a probing molecule. We have also demonstrated that the silver nanodendrites increase the sensitivity of an electrochemical glucose biosensor by as much as 1−2 orders of magnitude.

 

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2006. Vol. 22, no 10, 4836-4842 p.
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Materials Chemistry
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URN: urn:nbn:se:liu:diva-92119DOI: 10.1021/la060267xOAI: oai:DiVA.org:liu-92119DiVA: diva2:620168
Available from: 2013-05-07 Created: 2013-05-07 Last updated: 2017-12-06Bibliographically approved

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Mak, Wing Cheung

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