Chromatography Newsfeed Papaver somniferum in seventeenth century (Italy): archaeotoxicological study on brain and bone samples in patients from a hospital in MilanContribution of vitamin D3 and thiols status to the outcome of COVID-19 disease in Italian pediatric and adult patientsQuantitative multiple fragment monitoring with enhanced in-source fragmentation/annotation mass spectrometryDevelopment of a UPLC-MRM-based targeted proteomic method to profile subcellular organelle marker proteins from human liver tissuesKluai Hin (Musa sapientum Linn.) peel as a source of functional polyphenols identified by HPLC-ESI-QTOF-MS and its potential antidiabetic function GC/MS profiling of essential oils from Bontia daphnoides L., chemometric discrimination, isolation of dehydroepingaione and evaluation of antiviral activityBisprenyl naphthoquinone and chlorinated calcimycin congener bearing thiazole ring from an actinomycete of the genus PhytohabitansScreening of diverse marine invertebrate extracts identified Lissoclinotoxin F, Discodermin B, and other anti-Mycobacterium tuberculosis active compoundsStudying protein structure and function by native separation–mass spectrometryA mass spectrometric method for in-depth profiling of phosphoinositide regioisomers and their disease-associated regulation Reclassifying curls, coils, and kinksRegenerative engineering: Polymeric chemistry and materials science for regenerationPeriodic Graphics: Making molecular sandwichesFrom the archives: A look back at how C&EN covered big events in chemistry over the past 100 yearsFungal feuds