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Monitoring Protein Adsorption with Solid-state Nanopores
JoVE Journal
Bioengineering
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JoVE Journal Bioengineering
Monitoring Protein Adsorption with Solid-state Nanopores
DOI:

08:51 min

December 02, 2011

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Chapters

  • 00:05Title
  • 01:15Manufacturing Solid-state Nanopores in Silicon Nitride Membranes
  • 03:52Wetting of the Solid-state Nanopore
  • 06:18Monitoring Protein Adsorption
  • 07:12Typical Solid-state Nanopores
  • 08:15Conclusion

Summary

Automatic Translation

A method of using solid-state nanopores to monitor the non-specific adsorption of proteins onto an inorganic surface is described. The method employs the resistive-pulse principle, allowing for the adsorption to be probed in real-time and at the single-molecule level. Because the process of single protein adsorption is far from equilibrium, we propose the employment of parallel arrays of synthetic nanopores, enabling for the quantitative determination of the apparent first-order reaction rate constant of protein adsorption as well as and the Langmuir adsorption constant.

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