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Updated: Jan 31, 2026

Generation of Zerovalent Metal Core Nanoparticles Using n-2-aminoethyl-3-aminosilanetriol
Published on: February 11, 2016
Silver Metallic Cyclodextrin-Core Star mPEG
Jianghu Liang1, Yuyang Liu1, Xiaoyu Zhang1
1Key Laboratory of Macromolecular Science and Technology of Shaanxi Province, Department of Applied Chemistry, Northwestern Polytechnical University, Xi'an, 710072, P. R. China.
Abstract:
A novel silver metallic β-cyclodextrin (β-CD)-core star methoxypolyethylene glycol (mPEG) (SM-CD-SPEG) is presented. For this, a well-defined water-soluble β-CD-core star mPEG with aldehyde groups (CD-star(ald)PEG, III) is first designed and synthesized via the copper-catalyzed azide-alkyne click reaction. Then, silver nanoparticles are formed within III through the oxidation-reduction reaction between the aldehyde groups and silver ions. The oxidation-reduction reaction is characterized by means of 1 H NMR spectra. And the preparation conditions of SM-CD-SPEG are optimized. The resulting SM-CD-SPEG aqueous solutions exhibit good stability and a unimolecular micelle morphology. Significantly, it is able to obtain solid SM-CD-SPEG samples with molecular water-solubility. This is convenient for storage and further application of SM-CD-SPEG. The SM-CD-SPEG samples also show good catalytic performance toward the reduction reaction of methylene blue (MB) by sodium borohydride (NaBH4 ).
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