Rare-Earth hydroxide nanosheets based ratio fluorescence nanoprobe for dipicolinic acid detection

Li, Jinyan; Gu, Qingyang; Heng, Hui; Wang, Ziwei; Jin, Haibo; He, Jing

doi:10.1016/j.saa.2022.120969

Cited by 13 publications

(4 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fast reaction, portability, ease of use, excellent selectivity and sensitivity, and detection with the naked eye are all made possible by these qualities for medical, biological, and environmental applications [19][20][21][22][23][24][25]. Dipicolinic acid (DPA) has been proposed as a useful chemical scaffold for developing chromogenic and uorescent sensors, particularly metal ion detection [26][27][28][29][30][31][32]. DPA derivatives with binding centers like oxygen, nitrogen, and carbonyl sites for metal ion recognition can be readily synthesized.…”

Section: Introductionmentioning

confidence: 99%

A new pyridine-dicarbohydrazide-based turn-off fluorescent and colorimetric chemosensor for selective recognition of Cu2+

Zamani

Sarrafi

Tajbakhsh

2023

Preprint

View full text Add to dashboard Cite

A novel indole-containing 2,6-pyridinedicarbohydrazide P3 was easily synthesized and well-characterized employing NMR, ESI+-MS, FT-IR, and elemental analyses. The synthesized compound was examined as an efficient turn-off fluorescent and colorimetric cation receptor. The P3 receptor exhibits a remarkable rapid color change from colorless to brown in the presence of the Cu2+ cation. P3 displayed selective fluorescence quenching and a UV-vis redshift only in the presence of Cu2+ ion. Job’s plot, NMR titration, and ESI+-MS data were used to determine the complex's 1:2 stoichiometry between P3 and Cu2+. Fluorescence titration was used to calculate the association constant (Ka) as (2.9–3.5) ×1011 M− 2 and LOD as \(\tilde\) 4.2 ×10−9 M. P3-based test strips were developed, which might be used as a simple and effective Cu2+ test kit. This design, which incorporates a functional group on the upper rim of the 2,6-pyridinedicarbohydrazide platform, is expected to provide another avenue for the development of chemosensors.

show abstract

Section: Introductionmentioning

confidence: 99%

A new pyridine-dicarbohydrazide-based turn-off fluorescent and colorimetric chemosensor for selective recognition of Cu2+

Zamani

Sarrafi

Tajbakhsh

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…It combines optical and analytical biology, making it a powerful analytical method. [14][15][16] In the design of ratiometric sensing systems, there is a single responding fluorophore with a quenching or enhancing effect and another reference fluorescence unit with constant fluorescence intensity. They combine to form a core-shell system, 17 which is an innovation in single fluorescence response signal and monochromatic visual perception.…”

Section: Introductionmentioning

confidence: 99%

“…A ratiometric fluorescence sensor has the advantages of high accuracy, short detecting time, low cost, strong portability and fast speed. It combines optical and analytical biology, making it a powerful analytical method 14–16 . In the design of ratiometric sensing systems, there is a single responding fluorophore with a quenching or enhancing effect and another reference fluorescence unit with constant fluorescence intensity.…”

Section: Introductionmentioning

confidence: 99%

Dual‐emission ratiometric fluorescence sensors based on silica, molecularly imprinted polymers and carbon quantum dots for high‐sensitivity and high‐selectivity detection of sulfadiazine

Yang,

Kuai,

et al. 2023

Polymer International

View full text Add to dashboard Cite

In this work, a dual‐emission ratiometric fluorescence sensor was prepared and is used for the detection of sulfadiazine drug. In this paper, the hydrothermal method was used to synthesize CQD (fluorescence response signal) and sulfhydryl modified cadmium telluride quantum dots (fluorescence reference signal), and the molecularly imprinted polymer is synthesized following. After eluting the template molecule SDZ, the blot recognition site remains on the surface of the imprinted polymer. During the process of detection, due to electron transfer between SDZ and CQDs, holes of stimulated electrons are filled. It leads fluorescence quenching around 430 nm, which greatly improves sensor selection performance. Compared with traditional single‐emission fluorescence sensors, ratiometric fluorescence sensors have a wider linear range and higher detection accuracy. Under the optimal conditions, the sensor exhibited excellent performance in terms of low detection limit (4.2 nmol L−1) and its satisfactory linear range (2–20 μmol L−1). This intelligent response change mode also provide prospect for other sulfonamide antibiotics detection and offer a reference to signal transform for other molecular imprinting technology.This article is protected by copyright. All rights reserved.

show abstract

“…[47][48][49] Remarkably, lanthanide-functionalized LDHs with a homogeneous distribution of lanthanide ions and synergistic effects tend to provide excellent optical materials. [50][51][52] In particular, ratiometric fluorescent DPA nanosensors were successfully constructed by intercalating organic chromophores with anionic groups into the lanthanide-based LDH interlayer. 38 However, the organic chromophores are not firmly fixed on the LDH host layers and are prone to leach into a complex biological environment, resulting in changes in the reference signal and an inability to achieve a stable ratiometric fluorescence detection of DPA.…”

Section: Introductionmentioning

confidence: 99%

Smart intercalation and coordination strategy to construct stable ratiometric fluorescence nanoprobes for the detection of anthrax biomarker

Niu

Wang

Zhang

et al. 2022

Inorg. Chem. Front.

View full text Add to dashboard Cite

show abstract

Rare-Earth hydroxide nanosheets based ratio fluorescence nanoprobe for dipicolinic acid detection

Cited by 13 publications

References 39 publications

A new pyridine-dicarbohydrazide-based turn-off fluorescent and colorimetric chemosensor for selective recognition of Cu2+

A new pyridine-dicarbohydrazide-based turn-off fluorescent and colorimetric chemosensor for selective recognition of Cu2+

Dual‐emission ratiometric fluorescence sensors based on silica, molecularly imprinted polymers and carbon quantum dots for high‐sensitivity and high‐selectivity detection of sulfadiazine

Smart intercalation and coordination strategy to construct stable ratiometric fluorescence nanoprobes for the detection of anthrax biomarker

Contact Info

Product

Resources

About