A storable encapsulated bilayer chip containing a single protein nanopore

Area of Science:

• Biotechnology
• Nanotechnology
• Biophysics

Background:

• Stochastic sensing technology offers potential for sensitive molecular detection.
• Developing robust and portable devices is crucial for practical nanopore applications.
• Single protein nanopores are key components in advanced biosensors.

Purpose of the Study:

• To develop a stable, portable chip for single protein nanopore sensing.
• To demonstrate the functionality of encapsulated nanopore chips for molecular detection.
• To detect the second messenger inositol 1,4,5-trisphosphate (IP3) using a novel nanopore sensor.

Main Methods:

• Fabrication of a chip with a single alpha-hemolysin (aHL) pore within a planar phospholipid bilayer.
• Encapsulation of the nanopore within two layers of agarose gel for enhanced stability.
• Utilizing a genetically engineered aHL pore as the sensing element for molecular detection.

Main Results:

• The encapsulated nanopore chips demonstrated robustness and remained functional after storage for several weeks.
• The system successfully detected the presence of inositol 1,4,5-trisphosphate (IP3).
• The study showcases a significant advancement in the practical application of stochastic sensing.

Conclusions:

• A robust, portable, and storable single protein nanopore chip has been successfully developed.
• The developed chip enables sensitive detection of biologically relevant molecules like IP3.
• This technology holds promise for various applications in diagnostics and biochemical analysis.