Structural and luminescence studies of Dy3+-activated cadmium calcium pyrophosphate

Munimasthani, Sk.; Sarathkumar, S.; Thampy, U. S. Udaychandran; Ravikumar, R.V.S.S.N.

doi:10.1007/s00339-019-3180-x

Cited by 11 publications

(2 citation statements)

References 31 publications

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“…Compared with PAA-Ca(Ce), PAA-Ca(Ce):PPi showed new peaks at 1140 cm –1 (phosphate antisymmetric vibration) and 925 cm –1 (phosphate symmetric vibration), ,− which is the same as CaPPi. In addition, symmetrical O–P–O deformation vibration also appeared and moved to a higher frequency 530 cm –1 . , …”

Section: Results and Discussionmentioning

confidence: 95%

“…In addition, symmetrical O−P−O deformation vibration also appeared and moved to a higher frequency 530 cm −1 . 59,60 In order to understand the chemical composition and valence changes of the probe before and after the reaction with PPi, the XPS of the probe after the reaction with different concentrations of PPi was studied. It can be observed in the XPS spectrum of P 2p (Figure S3a) that when the PPi concentration is 0, no peak appears.…”

Section: Resultsmentioning

confidence: 99%

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Polyacrylic Acid-Ca²⁺(Ce³⁺) Nanoclusters as Fluorescent “Off–On–Off” Probes for Quantitative Detection of Pyrophosphate and Alkaline Phosphatase

Fan,

Ding,

Chen

et al. 2024

ACS Appl. Nano Mater.

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Alkaline phosphatase (ALP) is an essential enzyme widely distributed in the human body, and it can hydrolyze pyrophosphate (PPi) under alkaline conditions. Therefore, ALP and PPi activities are associated with many diseases and it is crucial to develop sensitive and selective methods for detecting ALP and PPi. Herein, poly(acrylic acid) (PAA)-Ca 2+ (Ce 3+ ) nanoclusters fluorescent probe was synthesized aiming to detect PPi and ALP quantitatively. The nanoclusters present monodisperse, and their particle size is 0.9−2.4 nm. The probe exhibits no fluorescence due to electron transfer; whereas it can combine with PPi to yield fluorescence increase, arising from the enhanced electric-dipole transition of Ce 3+ under the ligand effect of PPi. Moreover, the probe displays good selectivity to PPi, and the fluorescence changes display a linear relationship with PPi concentration of 3−20 mM (y = 11.29x − 23.47, R 2 = 0.994). Furthermore, the probe was mixed with PPi to form PAA-Ca(Ce):PPi nanoparticle (Monodisperse, average size: 1.94 nm) and showed high fluorescence selectivity and responsiveness to ALP due to the ALP hydrolyzing effect and the fluorescence difference between PAA-Ca(Ce):PPi and PAA-Ca(Ce):Pi. Based on the relationship between the fluorescence reduction rate of the probe and the logarithm of ALP concentration (y = 0.0594x − 0.00111, 5−200 U/L, R 2 = 0.996), ALP was successfully detected quantitatively, and the detection limit is calculated to be 0.62 U/L. Through this approach, we developed a fluorescence "turn-on" for PPi detection and "turn-off" for ALP detection. This study provides a promising strategy for the diagnosis of diseases related to PPi and ALP.

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Section: Results and Discussionmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Polyacrylic Acid-Ca²⁺(Ce³⁺) Nanoclusters as Fluorescent “Off–On–Off” Probes for Quantitative Detection of Pyrophosphate and Alkaline Phosphatase

Fan,

Ding,

Chen

et al. 2024

ACS Appl. Nano Mater.

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Structural and luminescent properties of CaZn2(PO4)2: RE3+ (RE = Er and Pr) nanophosphors for versatile device applications

Sarathkumar

Munimasthani

Thampy

et al. 2020

J Mater Sci: Mater Electron

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Effects of Interdomain and Intradomain Pores of Cu-Zn Ferrite Substituted with Nd Investigated Using Positron Annihilation Lifetime Technique

Samy

Aly

2021

J. of Materi Eng and Perform

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Structural and luminescence studies of Dy3+-activated cadmium calcium pyrophosphate

Cited by 11 publications

References 31 publications

Polyacrylic Acid-Ca²⁺(Ce³⁺) Nanoclusters as Fluorescent “Off–On–Off” Probes for Quantitative Detection of Pyrophosphate and Alkaline Phosphatase

Polyacrylic Acid-Ca²⁺(Ce³⁺) Nanoclusters as Fluorescent “Off–On–Off” Probes for Quantitative Detection of Pyrophosphate and Alkaline Phosphatase

Structural and luminescent properties of CaZn2(PO4)2: RE3+ (RE = Er and Pr) nanophosphors for versatile device applications

Effects of Interdomain and Intradomain Pores of Cu-Zn Ferrite Substituted with Nd Investigated Using Positron Annihilation Lifetime Technique

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Structural and luminescence studies of Dy3+-activated cadmium calcium pyrophosphate

Cited by 11 publications

References 31 publications

Polyacrylic Acid-Ca2+(Ce3+) Nanoclusters as Fluorescent “Off–On–Off” Probes for Quantitative Detection of Pyrophosphate and Alkaline Phosphatase

Polyacrylic Acid-Ca2+(Ce3+) Nanoclusters as Fluorescent “Off–On–Off” Probes for Quantitative Detection of Pyrophosphate and Alkaline Phosphatase

Structural and luminescent properties of CaZn2(PO4)2: RE3+ (RE = Er and Pr) nanophosphors for versatile device applications

Effects of Interdomain and Intradomain Pores of Cu-Zn Ferrite Substituted with Nd Investigated Using Positron Annihilation Lifetime Technique

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Polyacrylic Acid-Ca²⁺(Ce³⁺) Nanoclusters as Fluorescent “Off–On–Off” Probes for Quantitative Detection of Pyrophosphate and Alkaline Phosphatase

Polyacrylic Acid-Ca²⁺(Ce³⁺) Nanoclusters as Fluorescent “Off–On–Off” Probes for Quantitative Detection of Pyrophosphate and Alkaline Phosphatase