Jump to main content
Jump to site search

Issue 16, 2018
Previous Article Next Article

A facile method to functionalize gold nano-tripods with high suspension stability in an aqueous environment

Author affiliations

Abstract

Here we aim to develop a facile emulsion-based method to prepare tripod gold nanoparticles (AuNPs) with high suspension stability in an aqueous environment. A gyroid-structured polymer template formed by the hydrolysis of a degradable block copolymer, polystyrene (PS)-b-poly(L-lactide), is used for the fabrication of AuNPs. Also, a successful emulsification of dichloromethane (DCM) in the aqueous phase is developed by using thiolated polyethylene glycol (PEG-SH) as the stabilizer. Subsequently, the nanohybrids of PS/Au can be fabricated by templated electroless plating, and then selectively dissolving in the DCM dispersive phase. Most interestingly, a dedicated process for the simultaneous release of the tripod AuNPs from the dissolution of PS associated with PEG-SH at the interface of the emulsion is achieved, giving PEG-SH-functionalized tripod AuNPs dispersed in the aqueous phase, which significantly improves the suspension stabilization of tripod AuNPs. The in situ temperature-programmed electrospray-differential mobility analysis provides a quantitative, statistical analysis of mobility diameter, dynamic shape factor, polydispersity, and colloidal stability.

Graphical abstract: A facile method to functionalize gold nano-tripods with high suspension stability in an aqueous environment

Back to tab navigation

Supplementary files

Publication details

The article was received on 09 Jan 2018, accepted on 24 Mar 2018 and first published on 26 Mar 2018


Article type: Communication
DOI: 10.1039/C8NR00212F
Citation: Nanoscale, 2018,10, 7352-7356
  •   Request permissions

    A facile method to functionalize gold nano-tripods with high suspension stability in an aqueous environment

    T.-Y. Tang, H.-L. Wang, C.-T. Yao, K.-C. Yang, R.-M. Ho and D.-H. Tsai, Nanoscale, 2018, 10, 7352
    DOI: 10.1039/C8NR00212F

Search articles by author

Spotlight

Advertisements