Modulation of Single-Walled Carbon Nanotube Photoluminescence by Hydrogel Swelling
作者： Paul W. Barone , Hyeonseok Yoon , René Ortiz-García , Jingqing Zhang , Jin-Ho Ahn
DOI: 10.1021/NN901025X
关键词: Carbon nanotube 、 Composite material 、 Photoluminescence 、 Dielectric 、 Optical properties of carbon nanotubes 、 Vinyl alcohol 、 Nanotube 、 Hydrostatic pressure 、 Materials science 、 Raman spectroscopy
摘要: We demonstrate the use of hydrogel swelling as a mechanism to reversibly induce solvatochromic shifting in single-walled carbon nanotube (SWNT) near-infrared emission within biocompatible hydrogel. The optical sensor reports degree swelled state and glucose concentration when apo-glucose oxidase is used cross-link Photoluminescence maxima from dispersed nanotubes poly(vinyl alcohol) shift cross-linking increased, with maximum −48 meV for (6,5) nanotube. Raman tangential mode also red shifts up 17 cm−1, indicative lattice strain equivalent an effective hydrostatic pressure 3 GPa. While electronic band gaps SWNTs are known either increase or decrease uniaxial deformation depending on chiral vector, we show that detection counterintuitively non-strain-dependent. Instead, data well-described by model accounts changes dielectric screening the...
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sci-hub.se 参考文章(43)
Gordana Dukovic, Feng Wang, Daohua Song, Matthew Y. Sfeir, Tony F. Heinz, Louis E. Brus, Structural dependence of excitonic optical transitions and band-gap energies in carbon nanotubes. Nano Letters. ,vol. 5, pp. 2314- 2318 ,(2005) , 10.1021/NL0518122
Sanjib Bhattacharyya, Samuel Guillot, Hinda Dabboue, Jean-François Tranchant, Jean-Paul Salvetat, Carbon nanotubes as structural nanofibers for hyaluronic acid hydrogel scaffolds. Biomacromolecules. ,vol. 9, pp. 505- 509 ,(2008) , 10.1021/BM7009976
Noa Lachman, Christèle Bartholome, Pierre Miaudet, Maryse Maugey, Philippe Poulin, H. Daniel Wagner, Raman Response of Carbon Nanotube/PVA Fibers under Strain Journal of Physical Chemistry C. ,vol. 113, pp. 4751- 4754 ,(2009) , 10.1021/JP900355K
Esther S. Jeng, Anthonie E. Moll, Amanda C. Roy, Joseph B. Gastala, Michael S. Strano, Detection of DNA hybridization using the near-infrared band-gap fluorescence of single-walled carbon nanotubes Nano Letters. ,vol. 6, pp. 371- 375 ,(2006) , 10.1021/NL051829K
Zhimin Wang, Yongming Chen, Supramolecular Hydrogels Hybridized with Single-Walled Carbon Nanotubes Macromolecules. ,vol. 40, pp. 3402- 3407 ,(2007) , 10.1021/MA0702593
P. H. Tan, A. G. Rozhin, T. Hasan, P. Hu, V. Scardaci, W. I. Milne, A. C. Ferrari, Photoluminescence spectroscopy of carbon nanotube bundles: Evidence for exciton energy transfer Physical Review Letters. ,vol. 99, pp. 137402- 137402 ,(2007) , 10.1103/PHYSREVLETT.99.137402
Takashi Miyata, Noriko Asami, Tadashi Uragami, Preparation of an Antigen-Sensitive Hydrogel Using Antigen-Antibody Bindings Macromolecules. ,vol. 32, pp. 2082- 2084 ,(1999) , 10.1021/MA981659G
O. N. Torrens, D. E. Milkie, M. Zheng, J. M. Kikkawa, Photoluminescence from Intertube Carrier Migration in Single-Walled Carbon Nanotube Bundles Nano Letters. ,vol. 6, pp. 2864- 2867 ,(2006) , 10.1021/NL062071N
S. Reich, H. Jantoljak, C. Thomsen, Shear strain in carbon nanotubes under hydrostatic pressure Physical Review B. ,vol. 61, pp. 389- 392 ,(2000) , 10.1103/PHYSREVB.61.R13389
L. Liu, A. H. Barber, S. Nuriel, H. D. Wagner, Mechanical Properties of Functionalized Single‐Walled Carbon‐Nanotube/Poly(vinyl alcohol) Nanocomposites Advanced Functional Materials. ,vol. 15, pp. 975- 980 ,(2005) , 10.1002/ADFM.200400525