A highly sensitive and selective on-line two-dimensional reversed-phase liquid chromatography/electrospray ionization-tandem mass spectrometry (2D-LC-ESI/MS/MS) method was developed and validated to determine rifaximin in rat serum by direct injection. The 2D-LC-ESI/MS/MS system consisted of a restricted access media column for trapping
Journal of lipid research, 49(7), 1466-1476 (2008-03-25)
Ceramides (CERs) in human stratum corneum (SC) play physicochemical roles in determining barrier and water-holding functions of the skin, and specific species might be closely related to the regulation of keratinization, together with other CER-related lipids. Structures of those diverse
Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology, 149(4), 552-556 (2008-02-01)
Heat shock protein 70 (HSP70, 70 kDa) is the most commonly expressed protein in response to thermal stress. The extent of its expression is associated with differences in environmental temperatures. We investigated the heat shock response in red blood cells
Chemistry (Weinheim an der Bergstrasse, Germany), 15(42), 11319-11325 (2009-09-18)
This study systematically investigates periodic mesoporous organosilicas (PMOs) with controlled helical and concentric circular (CC) pore architectures prepared through a basic-catalyzed sol-gel process by using an achiral cationic surfactant trimethyloctadecylammonium bromide (C(18)TAB) as a structure-directing agent, perfluorooctanoic acid (PFOA) as
Journal of pharmaceutical and biomedical analysis, 24(5-6), 1137-1141 (2001-03-15)
Total plasma homocysteine (tHcy) in children may be an useful biochemical marker for genetic risk of premature cardiovascular disease. We reported a rapid, isocratic HPLC method able to process very small amount of newborn plasma samples. A blood sample from
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