[Progress in application of functionalized magnetic nanomaterials for sample pretreatment]

Area of Science:

• Analytical Chemistry
• Materials Science

Context:

• Increasing sample complexity and lower analyte concentrations necessitate advanced sample pretreatment.
• Magnetic solid-phase extraction (MSPE) is a key technique due to its efficiency and ease of use.
• Fe3O4 magnetic nanomaterials offer rapid separation, good dispersion, and biocompatibility.

Purpose:

• To review the preparation of functionalized Fe3O4 magnetic nanomaterials.
• To highlight their applications in sample pretreatment for various analytical fields.
• To provide insights into future research directions for sample preparation.

Summary:

• Fe3O4 magnetic nanomaterials are functionalized with diverse materials including carbon-based nanomaterials, molecularly imprinted polymers, ionic liquids, boronate affinity ligands, metal-organic frameworks, covalent organic frameworks, quantum dots, and metal oxides.
• These functionalized nanomaterials enhance physical and chemical stability, adsorption, and separation capabilities.
• Applications span biological, environmental, and food safety analyses, improving chromatographic and mass spectrometry outcomes.

Impact:

• Improved accuracy and efficiency in analytical chemistry sample pretreatment.
• Enhanced separation and adsorption capabilities of magnetic nanomaterials.
• Potential for advancements in sensitive detection across critical scientific domains.