A fluorescent aptasensor based on ZIF-8 @PdNCs and DNA-AgNCs for tobramycin detection in milk

Wang, Xiaoyang; Xu, Rui; Tian, Yuhang; Gao, Xiaolin; Zhang, Wanqi; Sun, Zhicong; Mou, Yaoting; Sun, Xia; Guo, Yemin; Li, Falan

doi:10.1016/j.snb.2023.133856

Cited by 6 publications

(1 citation statement)

References 28 publications

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“…Recently, fluorescence detection technology has been considered as a most effective tool and widely used for detecting heavy metals in water bodies due to its prominent advantages such as minimal interference, enough sensitivity and rapid response, etc [10][11][12]. As we all known, numerous fluorescence nanomaterials have already been explored and utilized for metallic ions detection including semiconductor quantum dots and fluorescent organic materials [13,14]. However, the above-mentioned materials commonly show many undesirable disadvantages for instance requirement of hazardous and expensive precursors, complex production and purification procedures and low fluorescence properties [15,16].…”

Section: Introductionmentioning

confidence: 99%

Integration of N, P-doped carbon quantum dots with hydrogel as a solid-phase fluorescent probe for adsorption and detection of Fe³⁺

Dong,

Lv,

Hao

et al. 2023

Nanotechnology

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In this work, a novel nitrogen-phosphorus co-doped carbon quantum dots (N, P-CQDs) hydrogel was developed utilizing the as-synthesized N, P-CQDs and acrylamide (AM) with the existence of ammonium persulfate and N, N′-methylene bisacrylamide (N-MBA). In consistent with pure N, P-CQDs, the N, P-CQDs hydrogel also shows a dramatic fluorescence property with maximum emission wavelength of 440 nm, which can also be quenched after adsorbing Fe3+. When the concentration of Fe3+ is 0-6 mmol/L, a better linear relationship between Fe3+ concentration and the fluorescence intensities can be easily obtained. Additionally, the N, P-CQDs hydrogel exhibits better recyclability. This confirms that the N, P-CQDs hydrogel can be used for adsorbing and detecting Fe3+ in aqueous with on-off-on mode. The fluorescence quenching mainly involves three procedures including the adsorption of Fe3+ by hydrogel, integration of Fe3+ with N, P-CQDs and the transportation of conjugate electrons in N, P-CQDs to the vacant orbits of Fe3+ and the adsorption process follows a pseudo-second-order kinetic model confirmed in the Freundlich isotherm model. In conclusion, this work provides a novel route for synchronously removing and detecting the metal ions in aqueous by integrating N, P-CQDs with hydrogel with better recyclability.

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Section: Introductionmentioning

confidence: 99%

Integration of N, P-doped carbon quantum dots with hydrogel as a solid-phase fluorescent probe for adsorption and detection of Fe³⁺

Dong,

Lv,

Hao

et al. 2023

Nanotechnology

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A sensitive aptasensor mediated by gold nanoparticles/metal organic framework lattice for detection of Pb2+ ion in marine products

Rouhi,

Khoshbin,

Rezaei

et al. 2024

Analytica Chimica Acta

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Label-free fluorescent aptasensor for myoglobin detection based on an aggregation-induced emission enhancement imidazole compound and a Fe3O4@4-VP platform

Wang,

Yang,

et al. 2024

Microchemical Journal

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A fluorescent aptasensor based on ZIF-8 @PdNCs and DNA-AgNCs for tobramycin detection in milk

Cited by 6 publications

References 28 publications

Integration of N, P-doped carbon quantum dots with hydrogel as a solid-phase fluorescent probe for adsorption and detection of Fe³⁺

Integration of N, P-doped carbon quantum dots with hydrogel as a solid-phase fluorescent probe for adsorption and detection of Fe³⁺

A sensitive aptasensor mediated by gold nanoparticles/metal organic framework lattice for detection of Pb2+ ion in marine products

Label-free fluorescent aptasensor for myoglobin detection based on an aggregation-induced emission enhancement imidazole compound and a Fe3O4@4-VP platform

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A fluorescent aptasensor based on ZIF-8 @PdNCs and DNA-AgNCs for tobramycin detection in milk

Cited by 6 publications

References 28 publications

Integration of N, P-doped carbon quantum dots with hydrogel as a solid-phase fluorescent probe for adsorption and detection of Fe3+

Integration of N, P-doped carbon quantum dots with hydrogel as a solid-phase fluorescent probe for adsorption and detection of Fe3+

A sensitive aptasensor mediated by gold nanoparticles/metal organic framework lattice for detection of Pb2+ ion in marine products

Label-free fluorescent aptasensor for myoglobin detection based on an aggregation-induced emission enhancement imidazole compound and a Fe3O4@4-VP platform

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Product

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Integration of N, P-doped carbon quantum dots with hydrogel as a solid-phase fluorescent probe for adsorption and detection of Fe³⁺

Integration of N, P-doped carbon quantum dots with hydrogel as a solid-phase fluorescent probe for adsorption and detection of Fe³⁺