Controlled Functionalization of Gold Nanoparticles with Mixtures of Calix[4]arenes Revealed by Infrared Spectroscopy

被引：32

作者：

Valkenier, Hennie ^{[1
]}

Malytskyi, Volodymyr ^{[2
]}

Blond, Pascale ^{[2
]}

Retout, Maurice ^{[1
]}

Mattiuzzi, Alice ^{[2
,5
]}

Goole, Jonathan ^{[3
]}

Raussens, Vincent ^{[4
]}

Jabin, Ivan ^{[2
]}

Bruylants, Gilles ^{[1
]}

机构：

[1] Univ Libre Bruxelles, Ecole Polytech Bruxelles, Engn Mol NanoSyst, Ave FD Roosevelt 50,CP165-64, B-1050 Brussels, Belgium

[2] Univ Libre Bruxelles, Lab Chim Organ, Ave FD Roosevelt 50,CP165-64, B-1050 Brussels, Belgium

[3] Univ Libre Bruxelles, Lab Pharmaceut & Biopharmaceut, Fac Pharm, Ave FD Roosevelt 50,CP165-64, B-1050 Brussels, Belgium

[4] Univ Libre Bruxelles, Lab Struct & Funct Biol Membranes, Ctr Struct Biol & Bioinformat, Ave FD Roosevelt 50,CP165-64, B-1050 Brussels, Belgium

[5] X4C, Rue Chene Bonnet 128, B-6110 Montignies le Tilleul, Belgium

来源：

LANGMUIR | 2017年 / 33卷 / 33期

关键词：

SELF-ASSEMBLED MONOLAYERS; SECONDARY STRUCTURE; SURFACE FUNCTIONALIZATION; INFORMATION-CONTENT; CHEMISTRY; NANOMATERIALS; REDUCTION; CATALYSIS; DELIVERY; DOMAINS;

D O I：

10.1021/acs.langmuir.7b02140

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Labile ligands such as thiols and carboxylates are commonly used to functionalize AuNPs, though little control over the composition is possible when mixtures of ligands are used. It was shown recently that robustly functionalized AuNPs can be obtained through the reductive grafting of ealix[4]arenes bearing diazonitim groups on the large rim. Here, we report a calix[4]arene-tetradiazonium decorated by four oligo(ethylene glycol) chains on the small rim, which upon grafting gave AuNPs with excellent stability thanks to the C-Au bonds. Mixtures Of this calixarene and one with four carboxylate groups were grafted on AuNPs. The resulting particles were analyzed by infrared spectroscopy, which revealed that the composition of the ligand shell clearly reflected the ratio of calixarenes that was present in solution. This strategy opens the way to robustly protected AuNPs with well-defined numbers of functional or postfunctionalizable groups.

引用

页码：8253 / 8259

页数：7

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