Reports of preserved cells and other soft tissues in ancient vertebrates, including dinosaurs,
have been met with controversy within the field of vertebrate palaeontology. To explain such …

Asphaltenes and maltenes of bitumen before and after aging are investigated by differential
scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), proton nuclear …

The main objective of this study is to analyze hazardous elements in nanoparticles
(NPs)(smaller than 100 nm) and ultrafine particles (smaller than 1 µm) in Porto Alegre City …

The ability to detect and map lipids, including potential lipid biomarkers, within a
sedimentary matrix using mass spectrometry (MS) imaging may be critical to determine …

Mullite–cordierite ceramic saggar is a necessary consumable material used in the synthesis
process of LiCoO2 that is easily eroded during application. In our study, we systematically …

In time-of-flight secondary ion mass spectrometry (TOF-SIMS), ionized molecules and
molecular fragments (secondary ions) are generated in collisions of high-energy ions …

Fossil organic matter (OM) in Paleoarchean rocks is an invaluable tracer of ancient life, yet it
is often contentious due to low preservation potentials of its original organic molecular …

Algerian crude oil displays a marked propensity for asphaltene precipitation, leading to solid
deposits during extraction, transportation, and storage. The relationship between …

Researchers' ability to accurately screen fossil and subfossil specimens for preservation of
DNA and protein sequences remains limited. Thermal exposure and geologic age are …