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Ultrasensitive electrochemical detection of gallic acid in beverages based on nitrogen-doped multi-walled carbon nanotube networks embellished with cobalt 2-methylimidazole nanoparticles.
Food Chem
January 2025
Materials Research Institute and Department of Ecosystem Science and Management, 204 Energy and the Environment Laboratory, The Pennsylvania State University, University Park, PA 16802, USA. Electronic address:
This work presents a convenient and easy-to-operate method for synthesizing the functionally integrated nanocomposite of nitrogen-doped multi walled carbon nanotube networks (N-CNTs) and cobalt 2-methylimidazole (ZIF-67) nanoparticles. The N-CNTs@ZIF-67 nanocomposite was utilized to design a novel electrochemical sensing platform for detecting gallic acid (GA). The N-CNTs@ZIF-67 modified glass carbon electrode (GCE) demonstrated high sensitivity for GA electrochemical detection (LOD: 10.
View Article and Find Full Text PDFUltra-Sensitive Detection of Bacterial Spores via SERS.
ACS Sens
January 2025
Department of Physics, Umeå University, Umeå SE-901 87, Sweden.
Bacterial spores are highly resilient and capable of surviving extreme conditions, making them a persistent threat in contexts such as disease transmission, food safety, and bioterrorism. Their ability to withstand conventional sterilization methods necessitates rapid and accurate detection techniques to effectively mitigate the risks they present. In this study, we introduce a surface-enhanced Raman spectroscopy (SERS) approach for detecting spores by targeting calcium dipicolinate acid (CaDPA), a biomarker uniquely associated with bacterial spores.
View Article and Find Full Text PDFLimited Utility of Routine Surveillance Ultrasound in Differentiated Thyroid Cancer Patients With Undetectable Postoperative Thyroglobulin Levels.
Clin Endocrinol (Oxf)
January 2025
Section of Endocrine Surgery, Department of Surgery, University of California, Los Angeles, California, USA.
Background: Neck ultrasound (US) and serum thyroglobulin (Tg) measurements are mainstays of long-term differentiated thyroid cancer (DTC) surveillance. Given the high sensitivity of serum Tg, we aimed to assess the utility of neck US in DTC patients who underwent total thyroidectomy and have undetectable serum Tg.
Methods: We performed a retrospective cohort analysis of DTC patients who underwent a total thyroidectomy at our institution (2010-2023) and received US-guided fine needle aspiration (FNA) during their surveillance.
New biomarkers in scorpion stings.
Toxicon
January 2025
Department of Internal Medicine, Faculty of Medicine, Federal University of Minas Gerais (UFMG); Interdisciplinary Research Center in Intensive Care Medicine (NIIMI). Electronic address:
Scorpion stings have a fatality rate of 0.16%, with the majority of deaths occurring in children. The resources currently available for diagnosing cardiac dysfunction caused by scorpion stings, the most common cause of death, are echocardiograms and laboratory tests, such as troponin, creatine phosphokinase-MB (CKMB), and Brain natriuretic peptide (BNP).
View Article and Find Full Text PDFChiral and Quantum Plasmonic Sensors: New Frontiers in Selective and Ultra-Sensitive Sensing.
Small
January 2025
Department of Chemistry, Dr. Vishwanath Karad MIT World Peace University, Survey No, 124, Paud Rd, Kothrud, Pune, Maharashtra, 411038, India.
Surface Plasmon Polaritons (SPPs) and Localized Surface Plasmon Resonances (LSPRs) are fundamental phenomena in plasmonics that enable the confinement of electromagnetic waves beyond the diffraction limit. This confinement results in a significant enhancement of the electric field, making this phenomenon particularly beneficial for sensitive detection applications. However, conventional plasmonic sensors face several challenges, notably their difficulty in distinguishing chiral molecules, which are vital in drug development.
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