One-step method for preparation of pH-responsive gold nanoparticles with block copolymer shell structures by UV irradiation

被引：6

作者：

Fu, Xiaoning ^{[1
]}

Yang, Hui ^{[2
]}

Zhang, Xiaokai ^{[3
]}

Li, Xue ^{[1
]}

Xu, Limei ^{[1
]}

Jia, Yuxi ^{[4
]}

机构：

[1] Univ Jinan, Sch Chem & Chem Engn, Shandong Prov Key Lab Fluorine Chem & Chem Mat, Jinan 250022, Peoples R China

[2] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

[3] Shandong Normal Univ, Coll Phys & Elect, Jinan 250014, Peoples R China

[4] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China

来源：

POLYMER BULLETIN | 2011年 / 67卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Block copolymer; Gold nanoparticles; UV irradiation; pH sensitivity; INDUCED CROSS-LINKING; AU-CORE; SURFACE; POLYMER; MONOLAYERS; PARTICLES; THIOL; BENZOPHENONE; FABRICATION; CLUSTERS;

D O I：

10.1007/s00289-011-0524-x

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Gold nanoparticles (AuNPs) are synthesized by UV irradiation of the solution of poly(2-vinyl pyridine)-block-poly(ethylene oxide)/HAuCl4 (PVP-b-PEO/HAuCl4) complexes. The AuNPs with cross-linked copolymer shells are stable in organic solvents and various biochemical buffers. It is found that AuNPs are pH sensitive. The average hydrodynamic diameter (D (h)) of the AuNPs in water measured by dynamic light scattering (DLS) is affected by the pH value of buffers. The optical properties of the AuNPs are also sensitive to the solution pH due to structural changes of the copolymers. It is expected that AuNPs will be useful as plasmonic, light-scattering, and light-absorbing analogs.

引用

页码：1059 / 1072

页数：14

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