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Silver Metallic Cyclodextrin-Core Star mPEG

Silver Metallic Cyclodextrin-Core Star mPEG

Jianghu Liang, Yuyang Liu, Xiaoyu Zhang

Macromol Rapid Commun. 2019 Sep;40(17):e1800562.

PMID: 30561864

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 ).

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP89485610	Methoxypolyethylene glycol azide		89485-61-0	Price

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