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

Biomedical Applications of Zirconia-Based Nanomaterials: Challenges and Future Perspectives DOI Creative Commons

Azzah M. Bannunah

Molecules, Journal Year: 2023, Volume and Issue: 28(14), P. 5428 - 5428

Published: July 15, 2023

ZrO2 nanoparticles have received substantially increased attention in every field of life owing to their wide range applications. Zirconium oxide is a commercially economical, non-hazardous, and sustainable metal having diversified potential NPs play vast role the domain medicine pharmacy such as anticancer, antibacterial, antioxidant agents tissue engineering reliable curative biomedical In this review article, we address all medical applications prepared through various approaches critical way. bio-ceramic substance that has biomimetic scaffolds its high mechanical strength, excellent biocompatibility, chemical stability. demonstrated anticancer activity against cancer cells. ZrO2-based nanomaterials exhibited antibacterial bacterial strains also activity. The nanocomposite exhibits highly sensitive biosensing toward sensing glucose other biological species.

Language: Английский

Citations

38
Portable Hydrogel Kits Made with Bimetallic Nanozymes for Point-of-Care Testing of Perfluorooctanesulfonate DOI
Xu Xu,

Muyao Ma,

Xin-yue Zhou

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(13), P. 15959 - 15969

Published: March 21, 2024

Perfluorooctanesulfonate (PFOS), an emerging organic contaminant, necessitates robust on-site detection strategies to safeguard human health and ecological balance. This study introduces a novel point-of-care testing (POCT) platform, combining hydrogel kit with nanozymes smartphone technology, for the highly sensitive of PFOS. The strategy utilizes copper-substituted cobalt-based Prussian blue analogue nanoboxes (CuCo-PBA NBs), which exhibit intricate hollow structures remarkable peroxidase-like catalytic activity, efficiently catalyzing oxidation chromogenic substrates hydrogen peroxide (H2O2). Density functional theory calculations elucidate adsorption dynamics H2O2 on CuCo-PBA NBs, identifying factors that improve efficiency. colorimetric POCT integrating interface, demonstrates practical utility achieves limit 1.43 × 10-8 mol L-1 research not only presents new nanozyme design PFOS in diverse matrices, such as lake water, whole blood, urine, milk, but also paves way developing portable efficient platform variety contaminants.

Language: Английский

Citations

11
A facile, low-cost bimetallic iron–nickel MOF nanozyme-propelled ratiometric fluorescent sensor for highly sensitive and selective uric acid detection and its smartphone application DOI
Jiawen Han, Yuwei Zhang, Xujuan Lv

et al.

Nanoscale, Journal Year: 2023, Volume and Issue: 16(3), P. 1394 - 1405

Published: Dec. 11, 2023

As a kind of well-known disease biomarker, uric acid (UA) is closely associated with normal metabolism and health. Despite versatile nanozymes facilitating the analysis UA, most previous works could only generate single-signal outputs unsatisfactory detection performance. Exploring novel ratiometric fluorescent UA sensor high sensitivity, reliability portable sensing ability based on facile, low-cost still challenging. Herein, we report first metal-organic-framework (MOF) nanozyme-originated Fe

Language: Английский

Citations

21
Multifunctional Ni-NPC Single-Atom Nanozyme for Removal and Smartphone-Assisted Visualization Monitoring of Carbamate Pesticides DOI
Xu Xu,

Muyao Ma,

Jiaxin Gao

et al.

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(2), P. 1225 - 1235

Published: Jan. 1, 2024

A multifunctional single-atom nanozyme, denoted as 3D Ni,N-codoped porous carbon (Ni-NPC), was devised that exhibits remarkable adsorption capabilities and a repertoire of enzyme mimetic functions (oxidase- peroxidase-like). These attributes stem from the distinctive mesoporous thin-shell structure well-dispersed Ni sites. The efficient capacity Ni-NPC assessed with respect to three carbamate pesticides (CMPs): metolcarb, carbaryl, isoprocarb. Moreover, colorimetric detection method for CMP established based on its robust peroxidase-like catalytic activity sequential interactions acetylcholinesterase. Furthermore, portable sensor hydrogel sphere integrated smartphone platform devised. This enables rapid, on-site, quantitative assessment CMP, boasting an extraordinarily low limit 1.5 ng mL–1. Notably, this successfully applied analysis levels in lake water vegetable samples (pakchoi rape), propelling progress real-time technologies food environment monitoring.

Language: Английский

Citations

7
Designing and evaluation of a novel electrochemical biosensor based on carbon quantum dots and gold core-shell to detect and measure Human T-lymphotropic Virus-1 (HTLV-1) in clinical samples DOI

Farkhonde Zibadi,

Majid Rezayi,

Reza Kazemi Oskuee

et al.

Microchemical Journal, Journal Year: 2024, Volume and Issue: 201, P. 110563 - 110563

Published: April 15, 2024

Language: Английский

Citations

7
Portable smartphone-assisted fluorescence-colorimetric multidimensional immunosensing microarray based on NH2-UiO-66@PtNPs multifunctional composite for efficient and visual detection of amantadine DOI Open Access
Huilin Li, Jingying Yang, Xiaochun Hu

et al.

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 473, P. 145401 - 145401

Published: Aug. 17, 2023

Language: Английский

Citations

16
Fluorometric and colorimetric dual-mode sensing of α-glucosidase based on aggregation-induced emission enhancement of AuNCs DOI
Songrui Li, Huifeng Zhang, Zhenzhen Huang

et al.

Journal of Materials Chemistry B, Journal Year: 2024, Volume and Issue: 12(6), P. 1550 - 1557

Published: Jan. 1, 2024

Herein, a fluorometric and colorimetric dual-mode assay platform used for α-glucosidase (α-Glu) activity sensing based on aggregation-induced emission enhancement (AIEE) of AuNCs was developed the first time. The quantum yield (QY) fluorescence lifetime were successfully ameliorated by Ce

Language: Английский

Citations

5
A dual-mode colorimetric and fluorometric sensor for the detection of spermine and spermidine in food based on N-doped carbon dots and peroxidase-like activity of V6O13 nanobelts DOI

Andi Huang,

Lian Xia,

Jiali Chen

et al.

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 409, P. 135596 - 135596

Published: March 5, 2024

Language: Английский

Citations

4
High resolution portable platform for pH sensing via colorimetric fluorescence of carbon dots DOI
Gianluca Minervini, Annamaria Panniello, Daniel Quesada-González

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159664 - 159664

Published: Jan. 1, 2025

Language: Английский

Citations

0
Spatial Confinement-Enhanced Electrochemiluminescence of Gold Nanoclusters on 3D Porous ZrO2 Hollow Nanospheres for the Assessment of Acute Myocardial Infarction Protein Markers DOI

Zhu Xiaochun,

Xiaofeng Wang,

Huimei Su

et al.

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

Herein, the gold nanoclusters@three-dimensional (3D) porous ZrO2 hollow nanospheres (Au NCs@ZrO2) with spatial confinement-enhanced electrochemiluminescence (SCE-ECL) were first prepared to fabricate a biosensing platform for ultrasensitive detection of insulin-like growth factor 1 (IGF-1), which was associated cardiovascular disease, malignant tumor, and neuropathic pain. Specifically, confinement Au NCs in 3D microenvironment significantly boosted optical radiation excited because vibration ligand molecules restricted, recombination holes electrons facilitated process enhancing ECL efficiency, resulting 5.1-fold stronger efficiency than NCs. As proof concept, based on NCs@ZrO2 as an emitter orderly localized catalytic hairpin self-assembly (OL-CHA) system signal amplifier, built achieved fast trace determination IGF-1 limit (LOD) down 0.36 fg/mL. Moreover, realized assessment expression acute myocardial infarction (AMI) patients exhibited more prominent accuracy enzyme-linked immunosorbent assay (ELISA). This work proposed neoteric avenue developing highly efficient emitters, presented promising prospect bioanalysis early diagnosis diseases.

Language: Английский

Citations

0