Nanoparticle-based assays in automated flow systems: A review

Area of Science:

• Analytical Chemistry
• Materials Science
• Nanotechnology

Background:

• Nanoparticles (NPs) possess unique properties driving their increasing use in analytical chemistry.
• Applications include chemosensors, signaling tags, catalysts, and analyte recognition/separation.
• Integrating NPs with automated flow-based analysis offers confined, cost-effective, and rapid analytical solutions.

Purpose of the Study:

• To review the state-of-the-art in continuous flow analysis and microfluidic systems utilizing nanoparticles.
• To examine the practical achievements and application fields of various nanoparticle types.
• To discuss NP functionalization strategies for enhanced analytical performance.

Main Methods:

• Review of scientific literature published between 2000 and 2013.
• Focus on continuous flow analysis and microfluidic approaches involving nanoparticles.
• Analysis of nanoparticle formats, functionalization, and application domains.

Main Results:

• Nanoparticles, including noble metals, magnetic materials, carbon, silica, and quantum dots, show significant potential in flow-based analytical systems.
• Functionalization of NPs enhances their capabilities for specific analytical tasks.
• Demonstrated improvements in sensitivity, selectivity, and efficiency in various analytical applications.

Conclusions:

• Nanoparticle integration into continuous flow and microfluidic systems represents a promising advancement in analytical chemistry.
• These approaches enable more efficient, cost-effective, and rapid analyses.
• Further research into NP functionalization and system integration will unlock broader applications.