L-asparaginase-mediated pH shift and carbon dot fluorescence modulation: A sensitive ratiometric method for quantifying L-asparagine in diverse potato varieties …

K Alhazzani, AZ Alanazi, H Ibrahim, AM Mostafa… - Food Chemistry, 2025 - Elsevier
This study presents a novel and selective method for the determination of l-asparagine in
diverse potato varieties under various storage conditions. L-asparagine levels serve as a …

pH-Sensitive blue and red N-CDs for L-asparaginase quantification in complex biological matrices

AZ Alanazi, K Alhazzani, H Ibrahim, AM Mostafa… - … Acta Part A: Molecular …, 2025 - Elsevier
A novel fluorometric method for the determination of L-asparaginase, an enzyme crucial in
cancer therapy and food industry applications, is presented. This sensitive and selective …

Bright yellow fluorescent carbon dots as selective nanoprobe for detection of 2-nitrophenol and 4-nitrophenol in aqueous medium

I Ashokan, SK Bhunia - Inorganica Chimica Acta, 2024 - Elsevier
Different types of phenolic pollutants pose a major risk to the environment and the health of
living things. It is therefore crucial for their selective recognition especially nitrophenols. In …

Innovating uric acid Biosensing: Development of a GSH@ Cd-Mediated Dual-Signal fluorometric method

AM Alaseem, K Alhazzani, AZ Alanazi, SM Alsanad… - Microchemical …, 2024 - Elsevier
Uric acid (UA) is a crucial biomarker for various metabolic and renal disorders, making its
accurate determination essential for clinical diagnostics and disease management. This …

ZIF-12-derived nitrogen doped porous carbon nanosheets-functionalized with silver nanoparticles for ratiometric molecularly-imprinted electrochemical sensing of D …

K Alhazzani, AZ Alanazi, H Ibrahim, AMBH Ali… - Microchemical …, 2024 - Elsevier
In this work, an electrochemical platform was developed for detection of D-pencillamine
utilizing highly responsive molecularly imprinted polymers (MIPs). This platform operates on …

Dual-emission ratiometric fluorometric platform using Cu@ NCDs/eosin system for sensitive detection of metformin: Pharmacokinetic studies in normal and disease …

YAB Jardan, MM El-Wekil, AM Mostafa, J Barker… - Microchemical …, 2025 - Elsevier
A novel ratiometric fluorometric method has been developed for the determination of
metformin (MET) using a dual-emission system composed of copper ion-modified nitrogen …

[HTML][HTML] Carbon Dot Micelles Synthesized from Leek Seeds in Applications for Cobalt (II) Sensing, Metal Ion Removal, and Cancer Therapy

TH Tsai, W Lo, HY Wang, TL Tsai - Journal of Functional Biomaterials, 2024 - mdpi.com
Popular photoluminescent (PL) nanomaterials, such as carbon dots, have attracted
substantial attention from scientists due to their photophysical properties, biocompatibility …

Novel Anthracene‐Appended Calix[4]triazacrown‐5 as an Effective Fluorescence Probe for Co2+ and Hazardous Cr2O72− Ions

S Sayin - Luminescence, 2024 - Wiley Online Library
ABSTRACT A new calix [4] triazacrown‐5–derived fluorescence chemosensor (AntUr‐
AzClx) at cone conformation was synthesized to afford an effective fluorescent probe, which …