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Amplified detection of DNA and analysis of single-base mismatches by the catalyzed deposition of gold on Au-nanoparticles
Abstract
A novel amplification route for DNA detection based on the deposition of gold on a 10 nm Au-colloid/avidin conjugate label acting as a 'seeding' catalyst, is described. Microgravimetric quartz-crystal-microbalance measurements are employed to transduce the catalyzed deposition of gold on the piezoelectric crystals. Three different DNA detection schemes are described: (i) analysis of a 27-base nucleic acid fragment; (ii) analysis of the entire M13phi DNA (7229 bases); and (iii) detection of a single-base mismatch in a DNA. Ultrasensitive detection of DNA is accomplished by the catalyzed deposition of gold, detection limit approximately 1 x 10(-15) M.
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Citations
Cited by
Nanostructures in Biodiagnostics
Rosi, N. L., & Mirkin, C. A. (2005) · Chemical Reviews · doi:10.1021/cr030067f · Cited by 4,603
Amplified Analysis of DNA by the Autonomous Assembly of Polymers Consisting of DNAzyme Wires
Wang, F., Elbaz, J., Orbach, R., Magen, N., & Willner, I. (2011) · Journal of the American Chemical Society · doi:10.1021/ja2076789 · Cited by 339
Self-citationNanoparticles for detection and diagnosis
Agasti, S. S., Rana, S., Park, M.-H., Kim, C. K., You, C.-C., & Rotello, V. M. (2010) · Advanced Drug Delivery Reviews · doi:10.1016/j.addr.2009.11.004 · Cited by 313
Metadata
- Authors
- Weizmann, Y., Patolsky, F., & Willner, I.
- Venue
- The Analyst
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2001
- Volume
- 126
- Issue
- 9
- Pages
- 1502-1504
- ISSN
- 0003-2654 (ISSN-L)
- 1364-5528
- OpenAlex
- W2050123276
- Cited by
- 166
- References
- 0
- FWCI
- 2.28
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Amplified detection of DNA and analysis of single-base mismatches by the catalyzed deposition of gold on Au-nanoparticles. https://app.cochat.ai/papers/10.1039/b106613g
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- Weizmann, Y., Patolsky, F., & Willner, I. (2001). Amplified detection of DNA and analysis of single-base mismatches by the catalyzed deposition of gold on Au-nanoparticles. The Analyst. https://doi.org/10.1039/b106613g
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