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Showing 1–12 of 12 results
Advanced filters: Author: Siddharth Iyer Clear advanced filters

  • The ozonolysis of α-pinene is important in atmospheric secondary organic aerosols formation. Here, the authors use a molecular dynamics guided reaction discovery approach and identify endoperoxide-to-alkoxy isomerization as a key branching point in the mechanism.

    • Huan Yang
    • Umberto Raucci
    • Theo Kurtén
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-12

  • Oxidation of volatile organic compounds leads to aerosol formation in the atmosphere, but the mechanism of some fast reactions is still unclear. The authors, using quantum chemical modelling and experiments, reveal that in key monoterpenes the cyclobutyl ring that would hinder the reactivity is broken in the early exothermic steps of the reaction.

    • Siddharth Iyer
    • Matti P. Rissanen
    • Theo Kurtén
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-6

  • ‘Manufacturing CAR-T cells is a streamlined and highly regulated procedure involving T-cell-expansion and activation on a standardised platform. Here, the authors show that a personalized approach, taking the phenotypic attributes of individual patients’ T cells into account, leads to more efficient CAR-T cell manufacturing and better CAR-T cell functionality.

    • David K. Y. Zhang
    • Kwasi Adu-Berchie
    • David J. Mooney
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-13

  • The authors spatially and functionally map innate lymphoid cells in the human female genital tract at homeostasis, uncovering tissue-specific and subset-specific distribution and functions, and rapid antiviral responses following HIV exposure.

    • Alexandra Werner
    • Laura Moreno de Lara
    • Marta Rodriguez-Garcia
    ResearchOpen Access
    Nature Immunology
    Volume: 26, P: 2030-2044

  • The oxidation of aromatics contributes significantly to the formation of atmospheric aerosol. Using toluene as an example the authors demonstrate a molecular rearrangement channel in the oxidation mechanism and show that the bicyclic peroxy radicals are much less stable than previously thought and can lead to aerosol-forming low-volatility products with up to 9 oxygen atoms on sub-second timescales

    • Siddharth Iyer
    • Avinash Kumar
    • Matti Rissanen
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-8

  • Iodic acid (HIO3) forms aerosols very efficiently, but its gas-phase formation mechanism is not well understood. Atmospheric simulation chamber experiments, quantum chemical calculations and kinetic modelling have now revealed that HIO3 forms as an early iodine oxidation product from hypoiodite. The mechanism explains field measurements and suggests a catalytic role for iodine in particle formation.

    • Henning Finkenzeller
    • Siddharth Iyer
    • Rainer Volkamer
    ResearchOpen Access
    Nature Chemistry
    Volume: 15, P: 129-135

  • Experiments performed in the CERN CLOUD chamber show that, under upper-tropospheric conditions, new atmospheric particle formation may be initiated by the reaction of hydroxyl radicals with isoprene emitted by rainforests.

    • Jiali Shen
    • Douglas M. Russell
    • Xu-Cheng He
    ResearchOpen Access
    Nature
    Volume: 636, P: 115-123

  • Observations are reported of HClO3 and HClO4 in the atmosphere and their widespread occurrence over the pan-Arctic during spring, providing further insights into atmospheric chlorine cycling in the polar environment.

    • Yee Jun Tham
    • Nina Sarnela
    • Alfonso Saiz-Lopez
    ResearchOpen Access
    Nature Communications
    Volume: 14, P: 1-10

  • Understanding amino acid aqueous solubility and hygroscopicity is important for examining their interaction with water vapour and their role in regulating the atmosphere-biosphere nutrient cycle, however, water uptake modelling studies remain scarce. Here, the authors apply the COSMOtherm program, based on the conductor-like screening model for real solvents (COSMO-RS), to study a group of amino acids and their mixtures with inorganic salts, reporting property calculations of amino acids, as well as cloud droplet activation curves.

    • Zijun Li
    • Siddharth Iyer
    • Noora Hyttinen
    ResearchOpen Access
    Communications Chemistry
    Volume: 9, P: 1-7