Highly stable aluminum-based metal-organic frameworks as biosensing platforms for assessment of food safety.

Title Highly stable aluminum-based metal-organic frameworks as biosensing platforms for assessment of food safety.
Authors C.S. Liu; C.X. Sun; J.Y. Tian; Z.W. Wang; H.F. Ji; Y.P. Song; S. Zhang; Z.H. Zhang; L.H. He; M. Du
Journal Biosens Bioelectron
DOI 10.1016/j.bios.2017.01.059
Abstract

Two unique immunosensors made of aluminum-based metal-organic frameworks (MOFs), namely, 515- and 516-MOFs, with 4,4',4''-nitrilotribenzoic acid (H3NTB) were successfully obtained to efficiently assess food safety. The as-prepared 515- and 516-MOFs exhibited superior thermal and physicochemical stability, high electrochemical activity, and good biocompatibility. Among these immunosensors, 516-MOF showed a preferable biosensing ability toward analytes determined by electrochemical techniques. The developed 516-MOF-based electrochemical biosensor not only demonstrated high sensitivity with low detection limits of 0.70 and 0.40pgmL(-1) toward vomitoxin and salbutamol, respectively, but also showed good selectivity in the presence of other interferences. Therefore, with the advantages of high sensitivity, good selectivity, and simple operation, this new strategy is believed to exhibit great potential for simple and convenient detection of poisonous and harmful residues in food.

Citation C.S. Liu; C.X. Sun; J.Y. Tian; Z.W. Wang; H.F. Ji; Y.P. Song; S. Zhang; Z.H. Zhang; L.H. He; M. Du.Highly stable aluminum-based metal-organic frameworks as biosensing platforms for assessment of food safety.. Biosens Bioelectron. 2017;91:804810. doi:10.1016/j.bios.2017.01.059

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Aluminum

See more Aluminum products. Aluminum (or Aluminium) (atomic symbol: Al, atomic number: 13) is a Block P, Group 13, Period 3 element with an atomic weight of 26.9815386. It is the third most abundant element in the earth's crust and the most abundant metallic element. Aluminum Bohr Model Aluminum's name is derived from alumina, the mineral from which Sir Humphrey Davy attempted to refine it from in 1812. Aluminum was first predicted by Antoine Lavoisier 1787 and first isolated by Hans Christian Øersted in 1825. Aluminum is a silvery gray metal that possesses many desirable characteristics. It is light, nonmagnetic and non-sparking. It stands second among metals in the scale of malleability, and sixth in ductility. It is extensively used in many industrial applications where a strong, light, easily constructed material is needed. Elemental AluminumAlthough it has only 60% of the electrical conductivity of copper, it is used in electrical transmission lines because of its light weight. Pure aluminum is soft and lacks strength, but alloyed with small amounts of copper, magnesium, silicon, manganese, or other elements, it imparts a variety of useful properties.

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