Luyao Yu, Meichen Liu, Ziyi Niu, Jiarui Zhang, Yue Deng, Xinyue Zhou, Jiansong You, Hongyu Xue, Lei Yin, Meiyun Shi
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引用次数: 0
Abstract
Monodisperse polyethylene glycol (PEG) derivatives offer significant advantages over conventional polydisperse PEGs for biomedical applications due to their precisely defined molecular structures. This study establishes an eco-efficient, selective, and sensitive analytical assay integrating microscale solid-phase extraction (μ-SPE) with ultra-performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS) to investigate the cellular uptake of HO-PEG8-OH polymers in MCF-7 cells. The method achieved greater than 91% recovery from 20 μL lysates using M-PEG6-OH as the internal standard, with validated linearity (10-1000 ng/mL, R > 0.997), accuracy (relative error < ± 7.49%), and precision (RSD < 7.50%). The novelty of the assay is the harmonization of analytical performance with green analytical chemistry principles. The validated method provides a robust platform for studying monodisperse PEG derivatives while addressing growing demands for sustainable analytical technologies. Green analytical chemistry metric assessments confirmed the environmental sustainability of the method. Cellular pharmacokinetic analysis revealed time-/concentration-dependent uptake kinetics of HO-PEG8-OH polymers in MCF-7 cells, showing 3.2-fold accumulation between 0.5 and 48 h exposure. These findings offer important insights for PEG-based drug delivery system optimization and establish a new standard for environmentally conscious bioanalytical method development.
期刊介绍:
Analytical and Bioanalytical Chemistry’s mission is the rapid publication of excellent and high-impact research articles on fundamental and applied topics of analytical and bioanalytical measurement science. Its scope is broad, and ranges from novel measurement platforms and their characterization to multidisciplinary approaches that effectively address important scientific problems. The Editors encourage submissions presenting innovative analytical research in concept, instrumentation, methods, and/or applications, including: mass spectrometry, spectroscopy, and electroanalysis; advanced separations; analytical strategies in “-omics” and imaging, bioanalysis, and sampling; miniaturized devices, medical diagnostics, sensors; analytical characterization of nano- and biomaterials; chemometrics and advanced data analysis.