Metal–Organic Framework Enhances Aggregation-Induced Fluorescence of Chlortetracycline and the Application for Detection

Yu, Long; Chen, Hongxia; Yue, Ji; Chen, Xinfeng; Sun, Mingtai; Tan, Hua; Asiri, Abdullah M.; Alamry, Khalid A.; Wang, Xiangke; Wang, Suhua

doi:10.1021/acs.analchem.9b00319

Cited by 145 publications

(62 citation statements)

References 52 publications

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“…Unexpectedly, a new fluorescence emission peak appeared at 509 nm, which was mainly due to the decomposition of TET under alkaline conditions. [ 25 ] Since the fluorescence peak at 509 nm corresponded to yellow‐green fluorescence, the fluorescence color of the solution gradually changed from blue to yellow‐green. The emission intensity ratio ( F 509 / F 423 ) displayed good linear relationships with TET concentrations over the range 0.1 × 10 −6 –10 × 10 −6 and 20 × 10 −6 – 80 × 10 −6 m (Figure 4d).…”

Section: Resultsmentioning

confidence: 99%

“…As for the generation of yellow‐green fluorescence, this was attributed to the decomposition of TET under alkaline conditions. [ 25,27 ] As shown in Figure S6 (Supporting Information), the UV absorption peaks of TET changed significantly under alkaline conditions. The characteristic peak belonging to β‐diketone system shifted from 275 to 271 nm, and the peak ascribed to an unsaturated olefin ketone system shifted from 358 to 373 nm, which was consistent with the previous report.…”

Section: Resultsmentioning

confidence: 99%

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

Liu

Xiao

et al. 2020

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Antimonene quantum dots (AMQDs) are attracting considerable attention due to their fascinating physicochemical properties. However, research on their semiconductor characteristics, especially the photoluminescence performance, is still in a preliminary stage and the experimental verification is scarcely reported, significantly restricting their further applications. Herein, the photoluminescence property of AMQDs is experimentally verified. The AMQDs are prepared by probe sonication‐assisted liquid‐phase exfoliation and show robust blue fluorescence, and the photoluminescence is hardly affected by pH. In view of the derivatization reaction of tetracyclines (TET) at different pHs, AMQDs are developed as a pH‐mediated dual‐channel ratiometric fluorescent probe for TET detection. Under acidic conditions, the AMQDs’ probe exhibits unique recognition behavior due to the inherent fluorescence of TET and the solvent‐enhancing effect, that is, the fluorescence changes from blue to red. Under alkaline conditions, this fluorescent probe realizes the transition from blue to yellow‐green because of the decomposition of TET. The limits of detection are 27 × 10−9 and 74 × 10−9 m, respectively. The high sensitivity and remarkable fluorescence changes make AMQDs ideal probes for TET sensing. Additionally, this is the first report on the photoluminescence property of AMQDs. It is believed that this work will open a new avenue for AMQDs in optical sensing fields.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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

Liu

Xiao

et al. 2020

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“…After spiking of CTC in zebrafish samples and urine samples the recoveries ranged between 91.5% and 108.5% while the LOD of method was found 28 nM. The sensor of MOF was found to be reusable after the removal of CTC but at the cost of tedious washing [47].…”

Section: Detection Of Antibiotics In Seafood and Fish Samplesmentioning

confidence: 96%

“…Yu et al developed an analytical method for the selective and sensitive detection of chlortetracycline (CTC) in fish muscle tissue after developing a zinc-based metal organic framework of pyromellitic acid (Zn-BTEC) [47]. The new material had the ability to enhance the aggregation-induced emission (AIE) of CTC.…”

Section: Detection Of Antibiotics In Seafood and Fish Samplesmentioning

confidence: 99%

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Novel Approaches Utilizing Metal-Organic Framework Composites for the Extraction of Organic Compounds and Metal Traces from Fish and Seafood

et al. 2020

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The determination of organic and inorganic pollutants in fish samples is a complex and demanding process, due to their high protein and fat content. Various novel sorbents including graphene, graphene oxide, molecular imprinted polymers, carbon nanotubes and metal-organic frameworks (MOFs) have been reported for the extraction and preconcentration of a wide range of contaminants from fish tissue. MOFs are crystalline porous materials that are composed of metal ions or clusters coordinated with organic linkers. Those materials exhibit extraordinary properties including high surface area, tunable pore size as well as good thermal and chemical stability. Therefore, metal-organic frameworks have been recently used in many fields of analytical chemistry including sample pretreatment, fabrication of stationary phases and chiral separations. Various MOFs, and especially their composites or hybrids, have been successfully utilized for the sample preparation of fish samples for the determination of organic (i.e., antibiotics, antimicrobial compounds, polycyclic aromatic hydrocarbons, etc.) and inorganic pollutants (i.e., mercury, palladium, cadmium, lead, etc.) as such or after functionalization with organic compounds.

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Highly Sensitive and Reliable NIR Luminescent Sensing Toward Nitro‐Aromatic Antibiotics in Water

Wang

Shi

Zhang

et al. 2021

Adv Materials Technologies

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Near‐infrared (NIR) light features less photon scatter and deeper penetration, thereby providing a sensitive and reliable platform for qualifying and quantifying trace organic contaminants in water medium. Herein, a lanthanide/β‐diketone complex, Yb(dmh)3(phen) (dmh = 2,6‐dimethyl‐3,5‐heptanedione, phen = 1,10‐phenanthroline), is synthesized and performs characteristic NIR luminescence of Yb3+ ions. The outstanding photophysical properties result from the combination effects of excited‐state inter‐ligand charge transfer, ligand‐to‐metal energy transfer, and high structural symmetry. Noteworthily, this NIR luminophore exhibits state‐of‐the‐art sensitivity toward nitro‐aromatic antibiotics in water. The limits of detection are lower to sub‐nanomolar level for nitroimidazoles (metronidazole 0.18 nM; dimetridazole 0.23 nM; ornidazole 0.28 nM) and even picomolar level for nitrofurans (nitrofurantoin 43 pM; nitrofurazone 46 pM). This exciting sensitivity attributes to photo‐induced electron transfer and inner filter effect between sensor and adsorbed analytes. The sensor is also capable of distinguished stability, selectivity, competitiveness, and anti‐interference, which makes it far better suited to the commercial application. The successfully developed technique of NIR luminescence sensing extends the platform of optical devices and sensing materials, being of practical value in monitoring water quality.

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Metal–Organic Framework Enhances Aggregation-Induced Fluorescence of Chlortetracycline and the Application for Detection

Cited by 145 publications

References 52 publications

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

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

Novel Approaches Utilizing Metal-Organic Framework Composites for the Extraction of Organic Compounds and Metal Traces from Fish and Seafood

Highly Sensitive and Reliable NIR Luminescent Sensing Toward Nitro‐Aromatic Antibiotics in Water

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