Dispersion of Carbon Nanotubes in Water by Noncovalent Wrapping with Peptides Screened by Phage Display

被引：5

作者：

Ejima, Hirotaka ^{[1
]}

Matsumiya, Kisei ^{[1
,2
]}

Yui, Hiroharu ^{[2
]}

Serizawa, Takeshi ^{[1
,3
]}

机构：

[1] Univ Tokyo, Dept Chem & Biotechnol, Meguro Ku, Tokyo 1538904, Japan

[2] Tokyo Univ Sci, Dept Chem, Fac Sci, Shinjuku Ku, Tokyo 1620826, Japan

[3] Univ Tokyo, RCAST, Meguro Ku, Tokyo 1538904, Japan

来源：

CHEMISTRY LETTERS | 2011年 / 40卷 / 08期

关键词：

POLYMER; SOLUBILIZATION; FLUORESCENCE; SELECTIVITY; AFFINITY; PHASE; ION;

D O I：

10.1246/cl.2011.880

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

12-mer peptides, which were originally identified by affinity screening for carbon nanotubes (CNTs) and poly(phenylenevinylene) (PPV) from phage-displayed peptide libraries, were used as dispersants for single-walled CNTs (SWNTs). The amounts dispersed were then compared under the same experimental conditions. Among the various peptides, Mps01 (HNAYWHWPPSMT) showed the highest dispersion capability. Gly scanning revealed that the Trp and Pro residues were crucial for dispersion. Atomic force microscopy (AFM) confirmed that the majority of dispersed SWNTs were debundled and isolated via Mps01 wrapping. AFM height analysis also suggested that the majority of SWNTs were covered by a monolayer of Mps01.

引用

页码：880 / 882

页数：3

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