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Two-Dimensional Arrays of Colloidal Gold Particles: A Flexible Approach to Macroscopic Metal Surfaces
Abstract
Covalent attachment of nanometer-scale colloidal Au particles to organosilane-coated substrates is a flexible and general approach to formation of macroscopic Au surfaces that have well-defined nanostructure. Variations in substrate (glass, metal, Al 2 O 3 ), geometry (planar, cylindrical), functional group (−SH, −P(C 6 H 5 ) 2, −NH 2, −CN), and particle diameter (2.5−120 nm) demonstrate that each component of these assemblies can be changed without adverse consequences. Information about particle coverage and interparticle spacing has been obtained using atomic force microscopy, field emission scanning electron microscopy, and quartz crystal microgravimetry. Bulk surface properties have been probed with UV−vis spectroscopy, cyclic voltammetry, and surface enhanced Raman scattering. Successful application of the latter two techniques indicates that these substrates may have value for Raman and electrochemical measurements. The assembly method described herein is compared with previous methods for controlling the nanoscale roughness of metal surfaces, and its potential applicability to the assembly of other colloidal materials is discussed.
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Cited by
Ghosh, S. K., & Pal, T. (2007) · Chemical Reviews · doi:10.1021/cr0680282 · Cited by 2,782
Shi, S., Wang, L., Su, R., Liu, B., Huang, R., Qi, W., & He, Z. (2015) · Biosensors and Bioelectronics · doi:10.1016/j.bios.2015.06.080 · Cited by 174
Inasaki, T., & Kobayashi, S. (2009) · Electrochimica Acta · doi:10.1016/j.electacta.2009.02.075 · Cited by 71
Electrocatalysis: Fundamentals and Applications
Zinola, C. F., Martins, M. E., Tejera, E. P., & Neves, N. P. (2012) · International Journal of Electrochemistry · doi:10.1155/2012/874687 · Cited by 34
“In this way, it is possible to obtain a wide variety of materials with different properties which can be used in a wide range of applications [18].”
Background
Metadata
- Authors
- Grabar, K. C., Allison, K. J., Baker, B. E., Bright, R. M., Brown, K. R., Freeman, R. G., Fox, A. P., Keating, C. D., Musick, M. D., & Natan, M. J.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 1996-01-01
- Volume
- 12
- Issue
- 10
- Pages
- 2353-2361
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W1993716668
- Cited by
- 426
- References
- 0
- FWCI
- 14.79
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Two-Dimensional Arrays of Colloidal Gold Particles: A Flexible Approach to Macroscopic Metal Surfaces. https://app.cochat.ai/papers/10.1021/la950561h
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- Grabar, K. C., Allison, K. J., Baker, B. E., Bright, R. M., Brown, K. R., Freeman, R. G., Fox, A. P., Keating, C. D., Musick, M. D., & Natan, M. J. (1996). Two-Dimensional Arrays of Colloidal Gold Particles: A Flexible Approach to Macroscopic Metal Surfaces. Langmuir. https://doi.org/10.1021/la950561h
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