Electrospinning design of functional nanostructures for biosensor applications.

Area of Science:

• Materials Science
• Nanotechnology
• Biosensing

Background:

• Electrospinning is a key technique for creating nanofibrous materials with high surface-area-to-volume ratios.
• Incorporating nanoscale building blocks (NBBs) like nanoparticles and graphene into electrospun fibers is crucial for advanced biosensor development.
• Challenges include NBB dispersion, limited fiber surface area, and insufficient biomolecule immobilization sites, hindering biosensor performance.

Purpose of the Study:

• To review strategies for fabricating functional fibrous nanostructures for signal amplification in nanostructure-based biosensors.
• To systematically summarize recent advances in electrospinning hybrid polymer nanofibers with functionalized NBBs.
• To discuss methods for improving NBB dispersion and increasing biomolecule immobilization sites.

Main Methods:

• Direct blending of NBBs before electrospinning.
• In situ synthesis of NBBs during electrospinning.
• Morphological processing of nanofibers and arrangement of NBBs to enhance immobilization sites.

Main Results:

• Strategies for effective NBB dispersion in electrospun nanofibers have been detailed.
• Methods to increase the surface area and immobilization capacity of nanofibers for biomolecules are presented.
• The suitability, advantages, and disadvantages of various electrospinning approaches for biosensor enhancement are discussed.

Conclusions:

• Optimizing NBB dispersion and immobilization strategies in electrospun nanofibers is critical for advancing biosensor technology.
• Electrospinning offers a versatile platform for creating high-performance biosensors by integrating functionalized NBBs.
• Further research into design configurations and processing routes can unlock broader applications for these advanced biosensors.