Preprints

Filtering by Subject: Organic Chemistry

Glyphosate retention dynamics at organo-mineral interfaces: Formation of multiple hydrogen-bonds and inner-sphere configurations at pectin-goethite interfaces

Behrooz Azimzadeh, Carmen Enid Martínez

Published: 2022-07-22
Subjects: Agriculture, Analytical Chemistry, Biogeochemistry, Environmental Chemistry, Environmental Sciences, Organic Chemistry, Physical Chemistry, Soil Science

The retention of glyphosate is strongly governed by adsorption and desorption processes at environmental interfaces. In particular, glyphosate can react with organo-mineral associations (OMAs) in soils, sediments, and aquatic environments. Here, we use in-situ time-resolved attenuated total reflectance Fourier-transform infrared (ATR-FTIR) spectroscopy to provide a mechanistic understanding of [...]

Recycling of archaeal biomass as a new strategy for extreme life in Dead Sea deep sediments

Camille Thomas, Vincent Grossi, Ingrid Antheaume, et al.

Published: 2017-12-15
Subjects: Biogeochemistry, Chemistry, Earth Sciences, Organic Chemistry, Physical Sciences and Mathematics

Archaea and Bacteria that inhabit the deep subsurface (known as the deep biosphere) play a prevalent role in the recycling of sedimentary organic carbon. In such environments, this process can occur over millions of years and requires microbial communities to cope with extremely limited sources of energy. Because of this scarcity, metabolic processes come at a high energetic cost, but the ways [...]

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