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Chithra Karunakaran
Researcher at Canadian Light Source
Publications - 100
Citations - 2998
Chithra Karunakaran is an academic researcher from Canadian Light Source. The author has contributed to research in topics: Synchrotron & Chemistry. The author has an hindex of 28, co-authored 89 publications receiving 2373 citations. Previous affiliations of Chithra Karunakaran include University of Saskatchewan & Lawrence Berkeley National Laboratory.
Papers
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Precipitation of amorphous CaCO3 (aragonite-like) by cyanobacteria: A STXM study of the influence of EPS on the nucleation process
Martin Obst,Martin Obst,James J. Dynes,James J. Dynes,John R. Lawrence,George D. W. Swerhone,Karim Benzerara,Chithra Karunakaran,K. Kaznatcheev,Tolek Tyliszczak,Adam P. Hitchcock +10 more
TL;DR: In this article, a model describing the temporal and spatial evolution of calcite nucleation on the surface of Synechococcus leopoliensis PCC 7942 was developed.
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Detection techniques for stored-product insects in grain
TL;DR: Acoustic detection, carbon dioxide measurement, uric acid measurement, near-infrared spectroscopy, and soft X-ray method have the potential for use at the industry level to detect insects in grain samples as their usefulness has been demonstrated in the research laboratories.
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Micro- and nano-environments of carbon sequestration: Multi-element STXM–NEXAFS spectromicroscopy assessment of microbial carbon and mineral associations
Dawit Solomon,Johannes Lehmann,Jennifer W. Harden,Jian Wang,James Kinyangi,Karen Heymann,Chithra Karunakaran,Yingshen Lu,Sue Wirick,Chris Jacobsen +9 more
TL;DR: In this paper, a synchrotron-based STXM-NEXAFS spectroscopy was used to identify and image micro-and nano-C sequestration environments, and conduct submicron-level investigation of the compositional chemistry and other interactive features of C and minerals present in these hotspots using ultrathin section of intact organomineral assemblage.
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Soft X-ray Spectromicroscopy Study of Mineral-Organic Matter Associations in Pasture Soil Clay Fractions
TL;DR: STXM-NEXAFS spectroscopy was used to investigate C associations with Ca, Fe, Al, and Si species in soil clay fractions from an upland pasture hillslope and showed similar correlation with Fe to Al and Si, implying a similar association of Fe oxides and aluminosilicates with organic matter in organo-mineral associations.
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Physicochemical characteristics of densified untreated and steam exploded poplar wood and wheat straw grinds
TL;DR: In this paper, the effect of steam explosion pretreatment, process (die) temperature, feedstock particle size, and moisture content was evaluated on the physical quality of pellets produced from poplar wood and wheat straw.