Self-assembly of S,N-codoped Ce/Cu bimetallic nanoparticles for fluorescence and visual detection of hexavalent chromium DOI Creative Commons

Hanyu Yang,

Kaijing Yang,

Rong Tang

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

Abstract As a carcinogen, hexavalent chromium (Cr(VI)) has attracted much attention for its quantitative detection. Herein, fluorescent S,N-codoped Cu/Ce-DAMP nanoparticles (S,N-codoped Cu/Ce NPs) were obtained by doping Ce2(SO4)3 in DAMP (4,6-diamino-2-mercaptopyrimidine)-encapsulated Cu nanoclusters (Cu NCs) via simple, rapid, hypothermic, green and energy-saving self-assembly synthesis method that can detect Cr(VI). The NPs exhibited double emission peaks at 470 nm 610 nm. Based on the aggregation-induced (AIE) effect, fluorescence is significant, quantum yield as high 20.19%. be selectively quenched Cr(VI) due to internal filter effect (IFE) dynamic quenching, while weak remains almost stable. this, assay was established, with good linearity concentration range of 0.5–120 µM detection limit (LOD) 134 nM. Using smartphone take photos signals solutions achieve rapid visual detection, linear 10–130 an LOD 2.35 µM. proposed successfully applied actual water samples.

Language: Английский

Encapsulating Gold Nanoclusters into Melamine–Formaldehyde Polymer Nanoparticles for Confinement Induced Enhanced Emission toward Ratiometric Sensing and Light-Emitting Diode Fabrication DOI
Songrui Li, Huifeng Zhang, Zhenzhen Huang

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: unknown, P. 368 - 375

Published: Dec. 25, 2024

Low photoluminescence quantum yield (PLQY) has long been one of the key issues that impedes versatile applications gold nanoclusters (AuNCs). In this work, melamine–formaldehyde polymer nanoparticles were employed as carriers to encapsulate AuNCs (AuNCs-MF PNPs), which can trigger confinement induced enhanced emission (CIEE) effect, remarkably enhancing PLQY more than 25 times from 1.46% (AuNCs) 36.90% PNPs) and improving stability toward pH. By simultaneously incorporating AuNCs-MF PNPs CDs sensing probes, ratiometric fluorescence detection H2S with improved sensitivity was achieved. To realize on-site H2S, a portable platform based on smartphone constructed. Considering high PNPs, light-emitting device (LED) fabricated favorable characteristics. This work not only provides novel strategy for preparing but also highlights their potential in field intelligent luminescence.

Language: Английский

Citations

1
FcCe-MOF-NH2-based colorimetric and fluorometric dual-mode detection of sulfide ions DOI
Shujian Liu, Xiaodan Zhang, Yuming Huang

et al.

Microchemical Journal, Journal Year: 2024, Volume and Issue: 203, P. 110878 - 110878

Published: May 31, 2024

Language: Английский

Citations

1
Recent Advances in the DNA-Mediated Multi-Mode Analytical Methods for Biological Samples DOI Creative Commons
Lü Huang, Zhuomin Zhang

Biosensors, Journal Year: 2023, Volume and Issue: 13(7), P. 693 - 693

Published: June 30, 2023

DNA-mediated nanotechnology has become a research hot spot in recent decades and is widely used the field of biosensing analysis due to its distinctive properties precise programmability, easy synthesis high stability. Multi-mode analytical methods can provide sensitive, accurate complementary information by merging two or more detection techniques with higher throughput efficiency. Currently, development multi-mode integrating been proved be an effective assay for greatly enhancing selectivity, sensitivity accuracy, as well throughput, complex biological analysis. In this paper, progress preparation typical probes reviewed from aspect deoxyribozyme, aptamer, templated-DNA G-quadruplex-mediated strategies. Then, advances samples are summarized detail. Moreover, corresponding current applications biomarker analysis, bioimaging monitoring introduced. Finally, proper summary given future prospective trends discussed, hopefully providing useful readers field.

Language: Английский

Citations

3
Confinement of gold nanoclusters on hydroxy double salt for versatile fluorescent sensing of bio-enzymes DOI
Mengke Wang, Yaqing Han, Rui Huang

et al.

Sensors and Actuators B Chemical, Journal Year: 2023, Volume and Issue: 401, P. 135038 - 135038

Published: Nov. 22, 2023

Language: Английский

Citations

3
Self-assembly of S,N-codoped Ce/Cu bimetallic nanoparticles for fluorescence and visual detection of hexavalent chromium DOI Creative Commons

Hanyu Yang,

Kaijing Yang,

Rong Tang

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 14, 2024

Abstract As a carcinogen, hexavalent chromium (Cr(VI)) has attracted much attention for its quantitative detection. Herein, fluorescent S,N-codoped Cu/Ce-DAMP nanoparticles (S,N-codoped Cu/Ce NPs) were obtained by doping Ce2(SO4)3 in DAMP (4,6-diamino-2-mercaptopyrimidine)-encapsulated Cu nanoclusters (Cu NCs) via simple, rapid, hypothermic, green and energy-saving self-assembly synthesis method that can detect Cr(VI). The NPs exhibited double emission peaks at 470 nm 610 nm. Based on the aggregation-induced (AIE) effect, fluorescence is significant, quantum yield as high 20.19%. be selectively quenched Cr(VI) due to internal filter effect (IFE) dynamic quenching, while weak remains almost stable. this, assay was established, with good linearity concentration range of 0.5–120 µM detection limit (LOD) 134 nM. Using smartphone take photos signals solutions achieve rapid visual detection, linear 10–130 an LOD 2.35 µM. proposed successfully applied actual water samples.

Language: Английский

Citations

0