BSA-Assisted Synthesis of Au Nanoclusters/MnO2 Nanosheets for Fluorescence “Switch-On” Detection of Alkaline Phosphatase

Biosensors, Год журнала: 2025, Номер 15(1), С. 49 - 49

Опубликована: Янв. 15, 2025

A fluorescence probe for “switch-on” detection of alkaline phosphatase (ALP) was developed based on Au nanoclusters anchored MnO2 nanosheets (Au NCs-MnO2 NSs), which were synthesized using bovine serum albumin (BSA) as template through a simple one-pot approach. In the sensing system, NSs function both energy acceptors and target identifiers, effectively quenches NCs via resonance transfer (FRET). The presence ALP catalyzes hydrolysis L-ascorbic acid-2-phosphate (AAP) to ascorbic acid (AA), reducing Mn2+ facilitate recovery NCs. assay offers advantages facile preparation, cost-effectiveness, good specificity, high sensitivity. Moreover, exhibits broad linear range (0.005 U/mL 8 U/mL) with remarkable limit 0.0015 U/mL. Notably, this demonstrates promising applicability in human samples, thereby providing valuable potential clinical applications.

Язык: Английский

---

Differential ratiometric molecularly imprinted electrochemical method for methyl-parathion and carbendazim in foods

Food Chemistry, Год журнала: 2025, Номер 474, С. 143186 - 143186

Опубликована: Фев. 4, 2025

Язык: Английский

---

Covalent organic frameworks (COFs)-based advanced sensors for detecting food contaminants: Design strategies and applications

Microchemical Journal, Год журнала: 2025, Номер unknown, С. 113096 - 113096

Опубликована: Фев. 1, 2025

Язык: Английский

---

Advancements in small molecule fluorescent probes for the detection of formaldehyde in environmental and food samples: A comprehensive review

Food Chemistry, Год журнала: 2025, Номер unknown, С. 144041 - 144041

Опубликована: Март 1, 2025

Язык: Английский

---

Modulating Linker Conjugation and Flexibility of Aggregation‐Induced Emission Covalent Organic Framework for Enhanced Luminescence

Advanced Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Фев. 6, 2025

Abstract In order to inhibit non‐radiative decay pathways of covalent‐organic frameworks (COFs), a strategy is proposed block intralayer conjugation and interlayer π–π stacking by using flexible aggregation‐induced emission (AIE) building blocks (4′,4′′′,4′′′′′,4′′′′′′′‐(1,2‐ethenediylidene) tetrakis[1,1′‐biphenyl]‐4‐carbaldehyde (TFBE)) connected weakly conjugated linker. By the TFBE as changing flexibility linker, TFBE‐COFs with different luminescence properties are obtained. Experimental theoretical results show that these have high crystallinity large layer spacing, among which photoluminescence quantum yield hydrazone (Hz)‐COF TFBE‐ODH (oxalyl dihydrazide (ODH)) in solid state reaches 26.28%, superior most COFs reported so far. The excellent attributed non‐planar geometry TFBE, inhibits quenching. Moreover, π‐electron delocalization‐induced leaps suppressed further enhances TFBE‐COFs. Hz‐COF exhibits sensing performance for trace tetracycline, detection limit 0.15 µ m . addition, white light‐emitting diodes coated manufactured achieve high‐quality light emission. This study provides new design application high‐emission COFs.

Язык: Английский

---

A Phototautomeric 3D Covalent Organic Framework for Ratiometric Fluorescence Humidity Sensing

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Март 6, 2025

Photoinduced proton transfer is an essential photochemical process for designing photocatalysts, white light emitters, bioimaging, and fluorescence sensing materials. However, deliberate control of the excited/ground states meticulous manipulation excited state intramolecular (ESIPT) pathway constitute a significant challenge in liquids dense solids. Here, we present integration hydronaphthoquinone fluorophore into crystalline, porous, phototautomeric dynamic 3D covalent organic framework (COF) to show guest-induced turn-on, emission redshift enhancement, shortened lifetimes ratiometric humidity sensing. Theoretical spectroscopic studies provide mechanistic insights conformational dynamics, charge coupled with local excitation, ground-state uphill regulation multiple tautomers. We illustrate sensitive, rapid, steady, self-calibrated wide range benefiting from architectural chemical robustness crystallinity such COF. These findings molecular design functional porous materials that integrate host-guest mutual recognition photoelectronic response multiplex environmental monitoring biomedical diagnostics applications.

Язык: Английский

---

Adjustable crystallinity of covalent organic frameworks for electrochemical aptasensing of penicillin

Microchimica Acta, Год журнала: 2025, Номер 192(5)

Опубликована: Апрель 7, 2025

Язык: Английский

---

Antenna effect-modulated luminescent lanthanide complexes for biological sensing

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2025, Номер unknown, С. 126239 - 126239

Опубликована: Апрель 1, 2025

Язык: Английский

---

Lanthanide coordination polymers as luminescent laccase mimics for ratiometric sensing of dopamine

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2024, Номер 327, С. 125398 - 125398

Опубликована: Ноя. 5, 2024

Язык: Английский

---

Tb3+-modified covalent organic frameworks-based fluorescence sensor for anthrax biomarker and anionic contaminants

Microchemical Journal, Год журнала: 2024, Номер 207, С. 112273 - 112273

Опубликована: Ноя. 26, 2024

Язык: Английский

---