A Lanthanide MOF Thin-Film Fixed with Co3 O4 Nano-Anchors as a Highly Efficient Luminescent Sensor for Nitrofuran Antibiotics.
Chemistry
; 23(43): 10293-10300, 2017 Aug 01.
Article
em En
| MEDLINE
| ID: mdl-28474416
ABSTRACT
Nitrofurans are a group of widely used veterinary antibiotics, which have been banned due to antibiotics pollution. Development of a rapid and effective method for the detection of nitrofuran antibiotics (NFAs) is an important challenge. Herein, we designed a chemical sensor based on a thin-film composed of the lanthanide metal-organic framework (Ln-MOF) {[Eu2 (BCA)3 (H2 O)(DMF)3 ]â
0.5DMFâ
H2 O}n (Eu-BCA, in which BCA is 2,2'-biquinoline-4,4'-dicarboxylate) coated on a cost-effective stainless steel wire mesh (SSWM) by Co3 O4 nano-anchor fixation method. The MOF coatings were well adhered to the SSWM, resulting in a three-dimensional porous, flexible, and processable sensor. The structure of the as-prepared MOF thin-film was confirmed by powder X-ray diffraction (PXRD), and the surface morphology was examined by scanning electron microscopy (SEM). Significantly, the Eu-BCA thin-film was highly selective and sensitive to NFAs, and yet remained unaffected by other common antibiotics that may be present. The limits of detection for nitrofurantoin (NFT) and nitrofurazone (NFZ) are 0.21 and 0.16â
µm, respectively. NFAs were also successfully detected in water from the Pearl River in Guangzhou, and from bovine serum samples. Hence, the reported Ln-MOF thin-film is a promising sensor for the detection of NFAs, thereby helping to protect human beings from all manner of hazards that arise from the abuse of antibiotics in livestock breeding.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Óxidos
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Cobalto
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Elementos da Série dos Lantanídeos
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Nanoestruturas
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Estruturas Metalorgânicas
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Nitrofuranos
Limite:
Humans
Idioma:
En
Ano de publicação:
2017
Tipo de documento:
Article