A novel urease-assisted ratiometric fluorescence sensing platform based on pH-modulated copper-quenched near-infrared carbon dots and methyl red-quenched red …

AZ Alanazi, K Alhazzani, AM Mostafa, J Barker… - Microchimica Acta, 2024 - Springer
A novel and sensitive fluorescence ratiometric method is developed for urea detection
based on the pH-sensitive response of two fluorescent carbon dot (CD) systems: R …

Enhanced dual fluorescence quenching of red and blue emission carbon dots by copper dimethyldithiocarbamate for selective ratiometric detection of ziram in …

K Alhazzani, AZ Alanazi, AM Mostafa, J Barker… - Microchemical …, 2024 - Elsevier
The monitoring of ziram levels is of vital importance due to its widespread application in
agriculture and the possible risks it poses to human health and the ecosystem. This work …

Exploiting the pH-responsive behavior of zinc-dithizone complex for fluorometric urea sensing utilizing red-emission carbon dots

K Alhazzani, AZ Alanazi, AM Mostafa, J Barker… - Microchemical …, 2024 - Elsevier
This study develops a novel fluorometric method for the sensitive and selective
determination of urea, based on unique system comprising nitrogen doped red-emissive …

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 …

Selective fluoride detection based on modulation of red emissive carbon dots fluorescence by zirconium-alizarin complex: Application to Nile River water and human …

YS Alqahtani, AM Mahmoud, MM El-Wekil… - Microchemical …, 2024 - Elsevier
Fluoride is an essential ion for dental health that is optimally supplemented through drinking
water, toothpastes, and other oral hygiene products. This work reports a selective, simple …

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 …

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 …

Dual-signal ratiometric fluorescence detection of cholesterol using a CYS@ Zn/CDs/cholesterol oxidase system

ST Alsharif, AM Mahmoud, MM El-Wekil, AMBH Ali - Microchemical Journal, 2025 - Elsevier
This work introduces a novel approach to cholesterol detection using a fluorometric method
that incorporates a CYS@ Zn/CDs/cholesterol oxidase system. The method employs a …

Enhanced fluorescent detection of oxaliplatin via BSA@ copper nanoclusters: a targeted approach for cancer drug monitoring

YS Alqahtani, AM Mahmoud, H Ibrahim… - Analytical …, 2024 - pubs.rsc.org
A new fluorescence sensing approach has been proposed for the precise determination of
the anti-cancer drug oxaliplatin (Oxal-Pt). This method entails synthesizing blue-emitting …

Utilizing a graphene quantum dot/hydrogel nanocomposite for determination of cisplatin in urine samples

SMH Pourmand, N Hashemzadeh, J Soleymani… - RSC …, 2024 - pubs.rsc.org
Currently, the growth and development of cancer are rising in the world, and as a result, the
use of anticancer drugs such as cisplatin has also increased. Considering that the …