Amino-Functionalized Al–MOF for Fluorescent Detection of Tetracyclines in Milk

Abstract

A fluorescent method for detection of tetracyclines (TCs) in milk was developed by using the NH 2 -MIL-53(Al) nanosensor synthesized via a one-pot hydrothermal method. The nanosensor had a crystalline nanoplates structure with rich groups of −NH 2 and −COOH. The −NH 2 /−COOH of NH 2 -MIL-53(Al) reacted with the −CO−/−OH of TCs to form a complex. The electron of −NH 2 /−COOH from the NH 2 -BDC ligand transferred to the −CO−/−OH of TCs. −NH 2 of the NH 2 -MIL-53(Al) interacted with the −CO−/−OH of TCs by hydrogen bonding. The quenching efficiency of the inner filter effect (IFE) was calculated to contribute 57−89%. The synergistic effect of photoinduced electron transfer (PET) and IFE account for fluorescence quenching. TCs were quantitatively detected in milk samples with recoveries of 85.15−112.13%; the results were in great accordance with high-performance liquid chromatography (HPLC) (P > 0.05), confirming the NH 2 -MIL-53(Al) nanosensor has potential applicability for the detection of TCs in food matrix.

Synthesis of Al-Based Metal-Organic Framework in Water With Caffeic Acid Ligand and NaOH as Linker Sources With Highly Efficient Anticancer Treatment

“…The spectrum corresponding to S2 showed less hydrogen bonding due to the addition of NaOH to CA, which caused H 2 O to be eliminated by the heating process ( Sánchez-Sánchez et al, 2015 ). The FTIR characterization related to the formation of Al-MOF nanostructures agrees to that reported previously ( Reinsch et al, 2012 ; Li et al, 2019 ). It is therefore important evidence for the successful synthesis of nanostructural compounds.…”

“…The frequency at 3,420 cm −1 is ascribed to the stretching 2015). The FTIR characterization related to the formation of Al-MOF nanostructures agrees to that reported previously (Reinsch et al, 2012;Li et al, 2019). It is therefore important evidence for the successful synthesis of nanostructural compounds.…”

A Water‐Stable Uranyl Organic Framework as a Highly Selective and Sensitive Bifunctional Luminescent Probe for Fe3+ and Tetracycline Hydrochloride

“…Antibiotics are widelyu sed to treat bacterial infections in humans and animals. [1][2][3][4] However,i ti sd ifficult to metabolize after entering humansa nd animals, leading to the growth and spread of resistant bacteria and drug-resistant genes, which have seriousi mpactso ne cosystems. In recent years, the abuse of antibiotic drugs has exacerbatedt his phenomenon.…”

Antimonene Quantum Dots as an Emerging Fluorescent Nanoprobe for the pH‐Mediated Dual‐Channel Detection of Tetracyclines

“…[ 8 ] However, excessive use of TET can lead to the antibiotic residues in animal‐derived food products and accumulation in human body through the food chain. [ 22 ] In the long run, this may cause great adverse effects on human health, including allergic reactions, gastrointestinal disorders, liver damage, and so on. [ 9a,23 ] With regard to this, it is meaningful and urgent to determine the content of TET in food samples effectively and rapidly.…”