Saito, Kenji and Troiani, Vincent and Qiu, Hongjin and Solladie, Nathalie and Sakata, Takao and Mori, Hirotaro and Ohama, Mitsuo and Fukuzumi, Shunichi (2007) Nondestructive formation of supramolecular nanohybrids of single-walled carbon nanotubes with flexible porphyrinic polypeptides. JOURNAL OF PHYSICAL CHEMISTRY C, 111 (3). pp. 1194-1199.
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Official URL: http://pubs.acs.org/doi/abs/10.1021/jp065615i
Abstract
Strategies for single-walled carbon nanotube (SWNT) separation are critical to developing nanotubes as useful nanoscale building blocks. Herein, diameter-selective dispersion of HiPco single-walled carbon nanotubes has been accomplished through noncovalent complexation of the nondestructive nanotubes with a flexible porphyrinic polypeptide bearing 16 porphyrin units [P(H2P)16] in DMF at 298 K. Supramolecular formation occurs through wrapping of peptidic backbone in P(H2P)16 and π−π interaction between porphyrins and nanotubes to extract the large-diameter nanotubes (ca. 1.3 nm) as revealed by ultraviolet−visible-near-infrared and Raman spectroscopy as well as high-resolution transmission electron micropscopy. The photoexcitation of the supramolecular complex affords the long-lived charge-separated state.
| Item Type: | Article |
|---|---|
| Subjects: | Physical Science > Nano objects Material Science > Nanochemistry |
| ID Code: | 3160 |
| Deposited By: | Anuj Seth |
| Deposited On: | 26 May 2009 14:39 |
| Last Modified: | 26 May 2009 14:39 |
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