Some examples of recent development of the synthesis of compounds labelled with short-lived beta(+)-emitting radionuclides will be discussed with an emphasis on the importance of time in selecting a synthetic strategy. Furthermore the use of such labelled compounds to monitor certain processes in areas within the field of analytical chemistry and in various applications in drug development will be presented.
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Target-regulated AgS/FeOOH heterojunction activity: a direct label-free photoelectrochemical immunosensor.
Mikrochim Acta
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College of Geography and Environmental Sciences, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, 321004, China.
Myoglobin (Mb), an important cardiac marker, plays a crucial role in diagnosing, monitoring, and evaluating the condition of patients with cardiovascular diseases. Here, we propose a label-free photoelectrochemical (PEC) sensor for the detection of Mb through target regulated the photoactivity of AgS/FeOOH heterojunction. The AgS/FeOOH nanospindles were synthesized and served as a sensing platform for the fabrication of bio-recognized process for Mb.
View Article and Find Full Text PDFChicago Sky Blue Stain, Calcofluor White Stain, and Potassium Hydroxide Mount for Diagnosis of Dermatomycosis.
J Coll Physicians Surg Pak
January 2025
Department of Microbiology, Armed Forces Institute of Pathology / National University of Medical Sciences, Rawalpindi, Pakistan.
Objective: To evaluate Chicago Sky Blue (CSB) stain, Calcofluor white (CW) stain, and Potassium Hydroxide (KOH) mount for rapid diagnosis of dermatomycosis, using fungal culture as the gold standard.
Study Design: Cross-sectional analytical study. Place and Duration of the Study: This study was conducted in the Department of Microbiology, Armed Forces Institute of Pathology / National University of Medical Sciences, Rawalpindi, Pakistan, from July 2023 to February 2024.
Investigation into Drug-Induced Liver Damage Using Multimodal Mass Spectrometry Imaging.
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Maastricht MultiModal Molecular Imaging Institute (M4i), Division of Imaging Mass Spectrometry, Maastricht University, Universiteitssingel 50, 6229 ER Maastricht, The Netherlands.
Drug toxicity during the development of candidate pharmaceuticals is the leading cause of discontinuation in preclinical drug discovery and development. Traditionally, the cause of the toxicity is often determined by histological examination, clinical pathology, and the detection of drugs and/or metabolites by liquid chromatography-mass spectrometry (LC-MS). While these techniques individually provide information on the pathological effects of the drug and the detection of metabolites, they cannot provide specific molecular spatial information without additional experiments.
View Article and Find Full Text PDFFacile manufacture of silver(I) complex/multilayer graphene composite for dynamic adsorption desulfurization.
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College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China. Electronic address:
The cyclic triangular complex - silver (I) 4-nitro-3,5-bis(trifluoromethyl)pyrazolate (Agpz) with super π-acidity shows great potential in adsorptive desulfurization (ADS) as a novel adsorbent, however, it fails to work well in the continue flow adsorption study. In order to improve its dynamic adsorption performance, a composite has been prepared by mixing Agpz and multilayer graphene (MG) in methanol. Based on the results of characterization by FT-IR, XPS, SEM, and so on, the optimal mass ratio of Agpz:MG in the synthesis is 0.
View Article and Find Full Text PDFSynthesis of Glycosylphosphatidylinositol Analogues with an Unnatural -D-Glucosamine-(1→6)--Inositol Motif.
J Carbohydr Chem
April 2024
Department of Chemistry, University of Florida, 214 Leigh Hall, Gainesville, FL 32611, USA.
Glycosylphosphatidylinositol (GPI) anchors contain a unique α-D-glucosamine-(1→6)--inositol [αGlcN(1,6)Ins] motif in their conserved core structure. To facilitate investigations of the functional roles of this structural motif, two GPI analogues containing unnatural βGlcN(1,6)Ins, instead of αGlcN(1,6)Ins, and an alkyne group at different positions of the GPI core were designed and synthesized. To this end, an orthogonally protected pseudopentasaccharide derivative of GPIs with the βGlcN(1,6)Ins motif was convergently constructed via [3+2] glycosylation and used as the common intermediate to prepare both GPI analogues by streamlined synthetic protocols.
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