Nanofluidic technology for biomolecule applications: a critical review

Area of Science:

• Nanofluidics
• Biomolecular analysis
• Nanofabricated devices

Background:

• Biomolecule analysis is crucial in many scientific fields.
• Nanofluidic devices offer unique advantages for manipulating and analyzing biomolecules at the nanoscale.
• Understanding nanoscale phenomena is key to advancing biomolecular applications.

Purpose of the Study:

• To review nanofluidic phenomena relevant to biomolecule analysis in nanofabricated devices.
• To present characteristic length scales and their impact on biomolecule behavior.
• To highlight the advantages and applications of nanofluidic devices for biomolecules.

Main Methods:

• Review of characteristic length scales (Debye length, Van der Waals radius, etc.).
• Analysis of nanofluidic phenomena (ion depletion, permselectivity, adsorption, etc.).
• Compilation of a 'nanofluidic toolbox' based on these principles.

Main Results:

• Nanofluidic phenomena significantly influence biomolecule transport and behavior.
• Key phenomena include ion effects, modified mobility, steric hindrance, and hydrodynamic interactions.
• Nanofluidic devices enable applications like separation, concentration, and sequencing of biomolecules.

Conclusions:

• Nanofluidics provides a powerful platform for advanced biomolecular analysis.
• The interplay of nanoscale phenomena dictates device performance.
• Future developments in nanofluidic devices promise enhanced capabilities for biomolecule research and diagnostics.