Hostname: page-component-586b7cd67f-2plfb Total loading time: 0 Render date: 2024-11-25T17:45:58.504Z Has data issue: false hasContentIssue false
  • English
  • Français

Patterned Functional Arrays by Selective De-Wetting

Published online by Cambridge University Press:  01 February 2011

Hongyou Fan ,
Dhaval Doshi ,
Yunfeng Lu ,
Gabriel P. Lopez  and
C. Jeffrey Brinker
Hongyou Fan
Affiliation:
The University of New Mexico/NSF Center for Micro-Engineered Materials, The Advanced Materials Laboratory, 1001 University Blvd, NM 87106, Sandia National Laboratories, Albuquerque, NM 87185.
Dhaval Doshi
Affiliation:
The University of New Mexico/NSF Center for Micro-Engineered Materials, The Advanced Materials Laboratory, 1001 University Blvd, NM 87106, Sandia National Laboratories, Albuquerque, NM 87185.
Yunfeng Lu
Affiliation:
The University of New Mexico/NSF Center for Micro-Engineered Materials, The Advanced Materials Laboratory, 1001 University Blvd, NM 87106, Sandia National Laboratories, Albuquerque, NM 87185.
Gabriel P. Lopez
Affiliation:
The University of New Mexico/NSF Center for Micro-Engineered Materials, The Advanced Materials Laboratory, 1001 University Blvd, NM 87106, Sandia National Laboratories, Albuquerque, NM 87185.
C. Jeffrey Brinker
Affiliation:
The University of New Mexico/NSF Center for Micro-Engineered Materials, The Advanced Materials Laboratory, 1001 University Blvd, NM 87106, Sandia National Laboratories, Albuquerque, NM 87185.
Get access

Abstract

Using a micro-Contact Printing (μ-CP) technique, substrates are prepared with patterns of hydrophilic, hydroxyl-terminated SAMs and hydrophobic methyl-terminated SAMs. Beginning with a homogeneous solution of silica, surfactant, ethanol, water, and functional silane, preferential ethanol evaporation during dip-coating, causes water enrichment and selective de-wetting of the hydrophobic SAMs. Correspondingly, film deposition occurs exclusively on the patterned hydrophilic SAMs. In addition, by co-condensation of tetrafunctional silanes (Si(OR)4) with tri-functional organosilanes ((RO)3Si (CH2)3NH2), we have selectively derived the silica framework with functional amine NH2 groups. A pH sensitive, micro-fluidic system was formed by further conjugation reactions with pH sensitive dye molecules.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 628: Symposium CC – Hybrid Organic/Inorganic Materials , 2000 , CC6.33
Copyright
Copyright © Materials Research Society 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Yang, H., Coombs, N., Ozin, G. A., Nature 386 (1997) 692–695.Google Scholar
[2] Trau, M., Yao, N., Kim, E., Xia, Y., Whitesides, G. M., Aksay, I. A., Nature 390 (1997) 674–676.Google Scholar
[3] Yang, P. D., Deng, T., Zhao, D. Y., Feng, P. Y., Pine, D., Chmelka, B. F., Whitesides, G. M., Stucky, G. D., Science 282 (1998) 2244–2246.Google Scholar
[4] Lu, Y. F., Ganguli, R., Drewien, C. A., Anderson, M. T., Brinker, C. J., Gong, W. L., Guo, Y. X., Soyez, H., Dunn, B., Huang, M. H., Zink, J. I., Nature 389 (1997) 364–368.Google Scholar
[5] Lu, Y. F., Fan, H. Y., Stump, A., Ward, T. L., Rieker, T., Brinker, C. J., Nature 398 (1999) 223–226.Google Scholar
[6] Fan, H. Y., Lu, Y. F., Stump, A., Reed, S. T., Baer, T., Schunk, R., Perez-Luna, V., Lope, G. P., Brinker, C. J., Nature in press.Google Scholar
[7] Xia, Y. W. GM, Angew. Chem. Int. ED. 37 (1998) 550–575.Google Scholar
[8] Xia, Y., Rogers, J., Paul, K., Whitesides, G., Chem. Rev. 99 (1999) 1823–1848.Google Scholar
[9] Zhao, D. Y., Huo, Q. S., Feng, J. L., Chmelka, B. F., Stucky, G. D., Journal of the American Chemical Society 120 (1998) 6024–6036.Google Scholar
[10] Yang, H., Kuperman, A., Coombs, N., Mamicheafara, S., Ozin, G. A., Nature 379 (1996) 703–705.Google Scholar