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. 2010 Mar 25;666(1):1–22. doi: 10.1016/j.aca.2010.03.038

Table 1.

Analytical applications of magnetic multi-function nanoparticles.

Nano-particle Core shell Analytical application Comments Refs.
CoFe2O4 Prussian blue nanoparticle-doped silica Aflatoxin B1 in food: Red paprika specimens assayed Simple, rapid, highly sensitive, specific, and no sample pre-concentration [53]
Fe3O4 Silica + PS + MIP Template: Bovine hemoglobin Separation of proteins Imprinted superparamagnetic nanoparticles easily reach the adsorption equilibrium [54]
Fe3O4 Fungal mycelium + chitosan imprinted shell. Template: Cu(II) ions Separation of copper ions Nanocomposite efficient, low-cost, convenient for separation, reusable. [55]
Fe3O4 Mercapto silica SPE of Cd, Cu, Hg, and Pb traces, biological and environmental samples LODs for Cd, Cu, Hg and Pb: 24, 92, 107, and 56 pg L−1, respectively [56]
Fe3O4 Amino silica + β-cyclodextrin Promising applications in bioseparations Superparamagnetic nanocomposite with high saturation magnetization [57]
Fe3O4 Streptavidin No analytical applications Two types of biotinylated analytes: agarose beads and BSA [58]
Fe3O4 Avidin Separation of oligonucleotides and DNA Stable suspensions of avidin-coated magnetic nanoclusters [59]
Fe3O4 Silica+carboxylic groups Separation of proteins Cytochrome C (12,000 Da), Rnase B (15,000 Da), Myoglobin (17,000 Da) [60]
Fe3O4 Covalent binding of hepatitis B surface antibody Immunovoltametric determination of hepatitis B surface antigen LOD 0.06 ng mL−1, higher than that of ELISA assay [61]
Fe3O4 Gold nanoparticles Staphylococcal enterotoxin B in food Magnetic nanogold microspheres as immunosensing probe [62]
Fe3O4 Silica + surfactants Pre-concentration of phenols, water samples Concentration factors of 1600 over 800 mL of different environmental water samples [63]
Fe3O4 HMS Extraction of DDT from aqueous media Fe3O4@HMS materials: high adsorption capacity and fast adsorption rate [19]

MIP: molecularly imprinted polymer; PS: polystyrene; SPE: solid phase extractions; LOD: limit of detection; BSA: bovine serum albumin; ELISA: enzyme linked immunosorbent assay; DDT: dichloro-diphenyl-trichloro-ethane; HMS: hexagonal mesoporous silica.