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On-site visual quantification of alkaline phosphatase activity in cells using a smartphone-based approach.
Anal Chim Acta
January 2025
Hunan Provincial Key Laboratory of Cytochemistry, School of Chemistry and Chemical Engineering, Changsha University of Science and Technology, Changsha, 410114, PR China.
Alkaline phosphatase (ALP) is a critical biomarker associated with various physiological and pathological processes, making its detection essential for disease diagnosis and biomedical research. In this study, we developed a novel, simple, and portable visual quantification method for ALP activity in cells using an efficient CuZnS nanomaterial with peroxidase-like properties, integrated into a smartphone-based platform for enhanced usability. The CuZnS nanomaterial catalyzes the breakdown of H₂O₂, generating ·OH radicals that oxidize the colorless substrate TMB into blue oxTMB, which is subsequently reduced back to TMB by ascorbic acid (AA).
View Article and Find Full Text PDFThree-dimensional CeO Nanosheets/CuO nanoflowers p-n heterostructure supported on carbon cloth as electrochemical sensor for sensitive nitrite detection.
Anal Chim Acta
January 2025
State Key Laboratory of Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130000, PR China. Electronic address:
Nitrite is widely used as a food additive, and it is of great significance to realize accurate detection of nitrite for food safety. Electrochemical technique is characterized by simple operation and portability, which enables rapid and accurate detection. The key factors affecting the nitrite detection performance are the electrocatalytic activity and interfacial electron transfer efficiency of the electrode.
View Article and Find Full Text PDFPortable dual-function ratio-type triple-emission molecularly imprinted fluorescence sensor for the simultaneous visual detection of hepatitis A and B viruses.
Anal Chim Acta
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The key Laboratory for Green Organic Synthesis and Application of Hunan Province, College of Chemistry, Xiangtan University, Xiangtan, 411105, China. Electronic address:
Background: Viral epidemics have long endangered human health and had dramatic impacts on environment and society. The currently known viruses and the rapid emergence of previously unknown viruses lead to an urgent need for effective virus detection strategies. It is important to develop methods that can detect multiple related viruses simultaneously in order to improve detection efficiency and to avoid treatment delays due to misdiagnoses.
View Article and Find Full Text PDFPortable and real-time detection for tetracycline antibiotics using europium-doped LDH gel intercalated graphene quantum dots.
J Hazard Mater
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Key Laboratory of Protection, Development and Utilization of Medicinal Resources in Liupanshan Area, Ministry of Education, College of Pharmacy, Ningxia Medical University, Yinchuan 750004, China; Key Laboratory of Ningxia Minority Medicine Modernization, Ministry of Education, Ningxia Medical University, Yinchuan 750004, China. Electronic address:
Tetracyclines (TCs) residues pose a significant threat to the aquatic environment and human health, therefore this study aims to develop a simple, rapid, and sensitive TCs detection method. Herein, a dual-responsive gel probe (LDH-CES@N) was designed, consisting of the intercalation of graphene quantum dots into europium-doped layered double hydroxide (LDH). In the presence of TCs, the as-prepared probe exhibited dual emission fluorescence at 504 nm and 616 nm due to the synergistic effect of aggregation-induced emission and antenna effect.
View Article and Find Full Text PDFthe diagnostic accuracy of EyeGuide focus testing for concussion in elite male rugby players.
Phys Sportsmed
January 2025
World Rugby, Ireland.
Introduction: Smooth pursuit eye movements may be affected by head impacts. The EyeGuide Focus system is a simple, portable, test of visual tracking. This study investigated the diagnostic accuracy of EyeGuide measurements for detection of concussion during elite Rugby matches.
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