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Gradient Sensitive Microscopic Probes Prepared by Gold Evaporation and Chemisorption on Latex Spheres
Abstract
We describe a simple yet general method for preparing microscopic probes that are gradient sensitive. Gold was first evaporated on one side of latex spheres, which were then chemically modified by a thiol. As one example, by using thiols with ionizable groups, we prepared microscopic spheres with pH dependent electric dipole moments. Under an electric field such spheres reoriented themselves depending on the pH value of the environment. This method can be naturally extended to other thiol-modified molecules such as dyes and antibodies to prepare various probes that are sensitive to the gradient of the physicochemical microenvironment or that are directional in binding.
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Cited by
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Galisteo‐López, J. F., Ibisate, M., Sapienza, R., Froufe‐Pérez, L. S., Blanco, Á., & López, C. (2011) · Advanced Materials · doi:10.1002/adma.201000356 · Cited by 668
Zhang, J., Li, Y., Zhang, X., & Yang, B. (2010) · Advanced Materials · doi:10.1002/adma.201000755 · Cited by 649
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Pawar, A. B., & Kretzschmar, I. (2010) · Macromolecular Rapid Communications · doi:10.1002/marc.200900614 · Cited by 567
Paunov, V. N., & Cayre, O. J. (2004) · Advanced Materials · doi:10.1002/adma.200306476 · Cited by 266
Metadata
- Authors
- Takei, H., & Shimizu, N.
- Venue
- Langmuir
- Publisher
- American Chemical Society (ACS)
- Published
- 1997-04-01
- Volume
- 13
- Issue
- 7
- Pages
- 1865-1868
- ISSN
- 0743-7463 (ISSN-L)
- 1520-5827
- OpenAlex
- W2008474032
- Cited by
- 252
- References
- 0
- FWCI
- 0.91
- Type
- journal article
- Language
- en
- Open access
- closed
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- Takei, H., & Shimizu, N. (1997). Gradient Sensitive Microscopic Probes Prepared by Gold Evaporation and Chemisorption on Latex Spheres. Langmuir. https://doi.org/10.1021/la9621067
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