Studies of the interaction of CS@ZnS:Mn with bovine serum albumin under illumination

Liu, Li; Xiao, Ling

doi:10.1016/j.apsusc.2015.04.203

Cited by 6 publications

(4 citation statements)

References 31 publications

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“…FL intensity data are analyzed using the Stern–Volmer equation and modified Stern–Volmer equation (details are given in the Supporting Information). , As shown in Figure C,D, the Stern–Volmer quenching constant was obtained from the intercept and slope of the resulting linear plots of F 0 F versus [ Q ]. The resulting Stern–Volmer equation and the quenching constant values are listed in Tables S1 and S2, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…FL intensity data are analyzed using the Stern−Volmer equation and modified Stern−Volmer equation (details are given in the Supporting Information). 35,36 As shown in Figure 1C,D S1 and S2, respectively. In general, if the quenching constant values are inversely correlated with temperature, the quenching process is initiated by static compound formation, and the FL quenching of MAPbBr 3 PQDs resulting from the complex formation is predominant.…”

Section: Spectroscopic Studies Of Mapbbr 3 Pqds−clothianidin Interactionmentioning

confidence: 85%

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Fluorescence Quenching Detection of Clothianidin in Fruit and Vegetable Samples Using MAPbBr₃ Perovskite Quantum Dots

Liu,

Peng,

et al. 2024

ACS Appl. Nano Mater.

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Highly stable and photoluminescent methylammonium lead halide perovskite quantum dots (MAPbBr3 PQDs) have been synthesized and applied for the fluorescence quenching detection of clothianidin in fruit and vegetable samples. Characterizations using different techniques, including photoluminescence (PL), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and time-resolved PL (TRPL), show that static quenching is the dominant fluorescence quenching mechanism of MAPbBr3 PQDs with clothianidin. Hydrogen bonds or van der Waals forces play major roles in the MAPbBr3 PQDs–clothianidin interaction. Under optimized conditions, the relative PL intensity of MAPbBr3 PQDs is linear to the concentration of clothianidin in the 0.0 and 20.0 mg/L range with a detection limit of 0.17 μg/kg. Excellent recoveries of 79.5–115.4% were acquired for radish and banana samples with a relative standard deviation below 9.4%. These results indicate that PQDs can be used for qualitative and quantitative identification of clothianidin, providing an effective detection method for risk prevention and control of neonicotinoid pesticide residues in agricultural products.

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Section: Resultsmentioning

confidence: 99%

Section: Spectroscopic Studies Of Mapbbr 3 Pqds−clothianidin Interactionmentioning

confidence: 85%

Fluorescence Quenching Detection of Clothianidin in Fruit and Vegetable Samples Using MAPbBr₃ Perovskite Quantum Dots

Liu,

Peng,

et al. 2024

ACS Appl. Nano Mater.

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“…Polymeric structure in combination with a large number of modifiable hydroxyl groups (-OH) determined one of the most important applications of polysaccharides—stabilization of various compounds or nanoparticles in aqueous media [ 2 , 3 , 4 , 5 ]. Indeed, they have proven to be efficient stabilizing agents for gold nanoparticles [ 6 , 7 , 8 ], quantum dots [ 9 , 10 , 11 , 12 , 13 , 14 ], upconversion nanoparticles [ 15 , 16 , 17 ], etc. Hybrid materials based on them can be used in various fields of biology and medicine, e.g., as biosensors [ 8 , 11 , 12 , 13 ], agents for bioimaging [ 9 , 10 , 11 ], and photothermal [ 17 ] and photodynamic therapies [ 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, they have proven to be efficient stabilizing agents for gold nanoparticles [ 6 , 7 , 8 ], quantum dots [ 9 , 10 , 11 , 12 , 13 , 14 ], upconversion nanoparticles [ 15 , 16 , 17 ], etc. Hybrid materials based on them can be used in various fields of biology and medicine, e.g., as biosensors [ 8 , 11 , 12 , 13 ], agents for bioimaging [ 9 , 10 , 11 ], and photothermal [ 17 ] and photodynamic therapies [ 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Oxidized Dextran as a Matrix for Stabilization of Octahedral Molybdenum and Tungsten Iodide Clusters in Aqueous Media

Пронина

Vorotnikov

Pozmogova

et al. 2023

IJMS

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Due to their high abundance, polymeric character, and chemical tunability, polysaccharides are perfect candidates for the stabilization of photoactive nanoscale objects, which are of great interest in modern science but can be unstable in aqueous media. In this work, we have demonstrated the relevance of oxidized dextran polysaccharide, obtained via a simple reaction with H2O2, towards the stabilization of photoactive octahedral molybdenum and tungsten iodide cluster complexes [M6I8}(DMSO)6](NO3)4 in aqueous and culture media. The cluster-containing materials were obtained by co-precipitation of the starting reagents in DMSO solution. According to the data obtained, the amount and ratio of functional carbonyl and carboxylic groups as well as the molecular weight of oxidized dextran strongly affect the extent of stabilization, i.e., high loading of aldehyde groups and high molecular weight increase the stability, while acidic groups have some negative impact on the stability. The most stable material based on the tungsten cluster complex exhibited low dark and moderate photoinduced cytotoxicity, which together with high cellular uptake makes these polymers promising for the fields of bioimaging and PDT.

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Changing the activities and structures of bovine serum albumin bound to graphene oxide

Zhang

Zhu

Wang

et al. 2018

Applied Surface Science

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Studies of the interaction of CS@ZnS:Mn with bovine serum albumin under illumination

Cited by 6 publications

References 31 publications

Fluorescence Quenching Detection of Clothianidin in Fruit and Vegetable Samples Using MAPbBr₃ Perovskite Quantum Dots

Fluorescence Quenching Detection of Clothianidin in Fruit and Vegetable Samples Using MAPbBr₃ Perovskite Quantum Dots

Multifunctional Oxidized Dextran as a Matrix for Stabilization of Octahedral Molybdenum and Tungsten Iodide Clusters in Aqueous Media

Changing the activities and structures of bovine serum albumin bound to graphene oxide

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Studies of the interaction of CS@ZnS:Mn with bovine serum albumin under illumination

Cited by 6 publications

References 31 publications

Fluorescence Quenching Detection of Clothianidin in Fruit and Vegetable Samples Using MAPbBr3 Perovskite Quantum Dots

Fluorescence Quenching Detection of Clothianidin in Fruit and Vegetable Samples Using MAPbBr3 Perovskite Quantum Dots

Multifunctional Oxidized Dextran as a Matrix for Stabilization of Octahedral Molybdenum and Tungsten Iodide Clusters in Aqueous Media

Changing the activities and structures of bovine serum albumin bound to graphene oxide

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Fluorescence Quenching Detection of Clothianidin in Fruit and Vegetable Samples Using MAPbBr₃ Perovskite Quantum Dots

Fluorescence Quenching Detection of Clothianidin in Fruit and Vegetable Samples Using MAPbBr₃ Perovskite Quantum Dots