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Applications Of NMR In Biology

Applications Of NMR In Biology

Nuclear magnetic resonance (NMR) spectroscopy is a very valuable analytical technique for researchers. It has been used for more than 50 years as an analytical tool. F. Bloch and E. Purcell formulated NMR in 1946 and won the 1952 Nobel Prize in Physics for their work. Biological macromolecules such as proteins, nucleic acids, lipids, and organic molecules including pharmaceutical compounds, can be studied using this versatile tool that exploits the magnetic properties of certain nuclei.
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Updated: May 7, 2026

Biofunctionalization of Magnetic Nanomaterials

Biofunctionalization of Magnetic Nanomaterials

Published on: July 16, 2020

Application of functionalized magnetic nanoparticles in sample preparation.

Lijun Xie¹, Ruifen Jiang, Fang Zhu

¹MOE Key Laboratory of Aquatic Product Safety/KLGHEI of Environment and Energy Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-sen University, Guangzhou, 510275, China.

Analytical and Bioanalytical Chemistry

|September 17, 2013

Summary

Functionalized magnetic nanoparticles offer superior sample preparation performance. This review covers their use as adsorbents in magnetic solid-phase extraction (MSPE) for analyte separation and preconcentration.

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Area of Science:

Analytical Chemistry
Materials Science
Nanotechnology

Background:

Traditional sample preparation methods often face limitations in efficiency and performance.
Functionalized magnetic nanoparticles (MNPs) have emerged as promising alternatives due to their unique properties.
Their high surface area and magnetic separability facilitate efficient analyte extraction.

Purpose of the Study:

To review the recent advancements in the application of functionalized magnetic nanoparticles for sample preparation.
To highlight the use of various functionalization materials, including silica, octadecylsilane, carbon-based materials, surfactants, and polymers.
To discuss the techniques and effectiveness of magnetic solid-phase extraction (MSPE) using these nanomaterials.

Main Methods:

Literature review focusing on magnetic solid-phase extraction (MSPE) techniques.
Analysis of studies employing magnetic nanoparticles functionalized with diverse materials.
Discussion of analyte separation and preconcentration from various sample matrices.

Main Results:

Functionalized magnetic nanoparticles demonstrate excellent performance as adsorbents in MSPE.
Various functionalization strategies (silica, ODS, carbon, surfactants, polymers) enhance adsorption capabilities.
MSPE techniques using these nanoparticles enable efficient separation and preconcentration of analytes.

Conclusions:

Functionalized magnetic nanoparticles are highly effective for advanced sample preparation.
MSPE offers a versatile and efficient platform for analyte enrichment.
Continued research in MNP functionalization promises further improvements in analytical methodologies.