Thin multicomponent films for functional enzyme devices and bioreactor particles

Area of Science:

• Biomolecular Engineering
• Nanotechnology
• Biochemistry

Background:

• Layer-by-layer (LbL) fabrication is a versatile method for creating nanoscale films.
• Biomolecules like enzymes and DNA can be incorporated into LbL films for specific functions.
• Conventional methods often struggle with creating complex, multifunctional biomolecular assemblies.

Purpose of the Study:

• To review the capabilities of LbL fabricated biomolecule films.
• To highlight the development of stable, functional enzyme-polyion films.
• To showcase applications in high-throughput screening and complex biochemical analyses.

Main Methods:

• LbL alternate electrostatic adsorption for enzyme film fabrication.
• Development of stable enzyme-polyion films.
• Construction of multicomponent DNA/enzyme/polyion films on arrays and particles.

Main Results:

• LbL films demonstrate high stability and functional capabilities.
• Films incorporating cytochrome P450s enable electrochemical activation of catalytic cycles.
• Multicomponent films facilitate high-throughput metabolic toxicity screening using electrochemiluminescence and LC-MS/MS.

Conclusions:

• LbL fabrication provides a powerful approach for creating complex functional biomolecular films.
• These films offer unique advantages for bioanalytical and biochemical applications.
• LbL technology enables functionalities difficult to achieve with traditional techniques.