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Development of the First-in-Class FEM1B-Recruiting Histone Deacetylase Degraders.
J Med Chem
January 2025
Department of Pharmaceutical and Cell Biological Chemistry, Pharmaceutical Institute, University of Bonn institution, An der Immenburg 4, Bonn 53121, Germany.
Targeted protein degradation (TPD) represents a promising alternative to conventional occupancy-driven protein inhibition. Despite the existence of more than 600 E3 ligases in the human proteome, so far only a few have been utilized for TPD of histone deacetylases (HDACs), which represent important epigenetic anticancer drug targets. In this study, we disclose the first-in-class Fem-1 homologue B (FEM1B)-recruiting HDAC degraders.
View Article and Find Full Text PDFSample preparation using deep eutectic solvents in combination with nanomaterials in analytical procedures: A review.
Anal Chim Acta
February 2025
School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do, 16419, Republic of Korea. Electronic address:
Background: Sample preparation can be a critical stage of analytical procedures that profoundly influences their performance, environmental impact, and overall efficiency. While nanomaterials have revolutionized sample preparation owing to their high surface area-to-volume ratios, tunable surface chemistry, and enhanced adsorption capacities, limitations persist. Researchers have ushered in a new era of efficient sample preparation methodologies that could overcome the limitations of nanomaterials by introducing deep eutectic solvents (DESs), which have unique advantages such as low volatility and toxicity, biodegradability, and tunability.
View Article and Find Full Text PDFA novel 3D-printed sample preparation method for benzodiazepine quantification in human serum.
Anal Chim Acta
February 2025
Department of Pharmaceutical Chemistry, Medical University of Gdansk, Hallera 107, 80-416, Gdansk, Poland.
Background: Benzodiazepine abuse remains a significant public health concern. Current sample preparation methods for benzodiazepine analysis from human serum often involve complex procedures that require large sample volumes and extensive organic solvent use. To address these limitations, this study presents a novel and efficient sample preparation method utilizing 3D-printed sorbent devices.
View Article and Find Full Text PDFDetermination of five alternaria toxins in peppermint by dispersive solid-phase extraction coupled with ultra-high performance liquid chromatography-tandem mass spectrometry based on MOF-808-TFA.
Food Chem
January 2025
School of Chemistry and Chemical Engineering, Nanchang University, Nanchang 330031, People's Republic of China; State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang 330031, People's Republic of China. Electronic address:
An efficient and rapid ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MSMS) method was developed for simultaneous determination of 5 alternaria toxins (ATs) in edible and medicinal plant - peppermint using MOF-808-trifluoroacetic acid (MOF-808-TFA) as the adsorbent. Characterization methods such as scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and N adsorption-desorption demonstrated that the synthesized MOF-808-TFA had a regular ortho-octahedral configuration and high specific surface area. Under the optimal conditions, the 5 ATs showed good linearity (R ≥ 0.
View Article and Find Full Text PDFBar Adsorptive Microextraction Approach for Trace Determination of Local Anesthetics in Urine Matrices.
Molecules
December 2024
Laboratório de Ciências Forenses e Psicológicas Egas Moniz, Molecular Pathology and Forensic Biochemistry Laboratory, Egas Moniz Center for Interdisciplinary Research, Egas Moniz School of Health and Science, Quinta da Granja, 2829-511 Almada, Portugal.
The present work reports the development, optimization, and validation, of a methodology to determine lidocaine, procaine, tetracaine, and benzocaine in urine matrices. Two extractive preconcentration techniques, solid-phase microextraction (SPME) LC Tips and bar adsorptive microextraction (BAμE), were studied and applied to the four target anesthetics, followed by gas chromatography-mass spectrometry (GC-MS) analysis. Several parameters that could affect microextraction and back-extraction were optimized using two different designs of experiments (Box-Behnken and full-factorial) to maximize extraction efficiency from aqueous media.
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