Abstract Download (8.38MB)

Name (Title):
Dr. Saikat Mandal (JSPS researcher, Supermolecules group)
Affiliation:
JSPS Researcher, Supermolecules Group, National Institute for Materials
Science (NIMS)
Address:
1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Email: MANDAL.Saikat@nims.go.jp
Home Page: http://www.nims.go.jp/super/HP/E_home.htm
Presentation Title:
Fabrication of gold nanotape architecture using in-situ generated 1D template
Abstract:
Compared with non-dimensional nanoparticles, one-dimensional (1D) nanomaterials are more
interesting because of their potential high technological applications for electronics, photonics,
nonlinear optoelectronics, waveguide materials and even biomedical applications. [1] 1D
nanostructures provide a starting point for fabricating future nanodevices with unique properties.
Therefore it would be advantageous to assemble the nanoparticles in one-dimensional, where
they can communicate to each other very easily. Therefore the requirements of simple and
reliable protocols for the synthesis of 1D nanostructure continue to be a major challenge in
nanoscience. Over the last few years several research groups have exploited different templates to
create metal nanoparticles assemblies. [2] However one-dimensional (1D) dense arrays of
nanoparticles still remain a great challenge in nanotechnology because it is quite difficult to
organize metal nanoparticles in low symmetry; otherwise the metal surface tends to aggregate
into two- or three-dimensional structures. In this presentation the formation of 1D dense array of
gold nanoparticles has been illustrated. The one-dimensional template is created through specific
interaction between gold ions and the chiral surfactant, which favors the formation of a 1D
structure in the precursor and these 1D structures are used as template for the fixation of gold
nanoparticles without prior functionalization. This novel organic-inorganic hybrid template
shows the excellent potential as a nanoreactor for assembly of nanoparticles and their use as a
new class of scaffolds for the synthesis of nanomaterials is salient features of the work with
implications in crystal engineering and nanocomposites design for various applications.
Figure: A and B show the representative TEM and AFM images
of nanotapes of 1D assembled gold nanoparticles respectively.
Poster Session PM-13
References :
[1] Y. Wu, H. Yan, M. Huang, B. Messer, J.H. Song, P. Yang, Chem. Eur. J. 2002, 8, 1260.
[2] a) K. J. C. van Bommel, A. Friggeri, S. Shinkai Angew. Chem. Int. Ed. 2003, 42, 980; b) M.
Wirtz, C. R. Martin, Adv. Mater. 2003, 15, 455; c) K. Ariga, J. Nanosci. Nanotechnol. 2004,
4, 23; d) A. Sanyal, S. Mandal, M. Sastry, Adv. Funct. Mater. 2005, 15, 273; e) M. G.
Warner, J. E. Hutchison, Nature Mater. 2003, 2, 272; f) E. Dujardin, C. Peet, G. Stubbs, J.N.
Culver, S. Mann, Nano Lett. 2003, 3, 413.
55