organic
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Nanotechnology
Covalent organic frameworks show great potential for efficient energy transport
Laura Spieth examines one of the COF thin films investigated in the study. Credit: Florian Wolf An interdisciplinary research team from LMU, Technical University of Munich (TUM) and the University of Oxford has used a new spectroscopic technique to investigate the diffusion of excited states in covalent organic frameworks (COFs). These modular materials can be tailored to desired properties through…
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Chemistry
Organic LED materials enable faster organic phosphorescence and improve display technology
Photophysical properties of DDT and DDT/MoS2. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-51501-8 Screens in televisions, smartphones and other displays could be made with a new type of organic LED material developed by an international team co-led by University of Michigan engineers. This material maintains vivid colors and contrast while replacing heavy metals with a new hybrid material. Strangely enough, this…
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Chemistry
Study reveals that cobalt ions, rather than the covalent organic skeleton itself, promote catalytic activity
a) Schematic diagram of the synthesis of TpBpy-Co COF. b) PXRD patterns of TpBpy and TpBpy-Co (Cu Kα1). c) N2 adsorption (filled) and desorption (empty) isotherm profiles at 77 K. Credit: Advanced Science (2024). DOI: 10.1002/advs.202413555 Covalent organic frameworks (COFs) are less stable catalysts than previously thought, but they maintain high activity. COFs are promising designer catalysts, including in the…
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Chemistry
Exploration of new liquid organic hydrogen carrier materials for safer and transportable energy sources
Optimization of LOHC molecules using molecular engineering approaches. Change in the position of the methyl group in nitrogen-containing bicyclic LOHC (left) and hydrocarbon tricyclic LOHC (right). Credit: Korea Research Institute of Chemical Technology (KRICT) To reduce CO2 emissions, an energy transition from carbon-based energy systems to more sustainable systems based on hydrogen energy is urgently needed. However, the properties of…
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Biology
Study finds increased leaching of dissolved organic carbon in soil in rubber plantations
Credit: Journal of Environmental Management (2024). DOI: 10.1016/j.jenvman.2024.122965 Although rubber plantations bring significant economic benefits, large-scale rubber plantations have significant impacts on the ecological environment, especially in terms of soil physical and chemical properties. In a study published in the Journal of Environmental Management, researchers from the Xishuangbanna Tropical Botanical Garden (XTBG) found that the conversion of tropical rainforests to…
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Biology
How volatile organic compounds strengthen plant defenses and provide sustainable pest control solutions
Plants that are attacked or infested by pests emit VOCs that send signals to nearby healthy plants. This strengthens and improves the defense mechanisms of neighboring plants against pests and pathogens. Credit: Genichiro Arimura / TUS, Japan Volatile organic compounds (VOCs) are important airborne signals or odors that allow plants to communicate with other organisms and plants over short and…
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Biology
Insect and spider biodiversity increases organic nutrient availability across ecosystems, large-scale study shows
Sampling locations for aquatic and terrestrial arthropods throughout Switzerland. Credit: Science (2024). DOI: 10.1126/science.adp6198 Insects and spiders are important components of food webs in aquatic and terrestrial ecosystems. As an international research team led by Ehwag and WSL scientists recently demonstrated, as biodiversity declines, food supplies for birds, fish, reptiles, amphibians, and small mammals are not only in short supply,…
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Chemistry
Abiotic organic synthesis research suggests new mechanism of organic condensation
Manned Vehicle (HOV) Shen Hai Yongshi. Credit: NIGPAS A Chinese research team reported the discovery of abiotic organic compounds in the oceanic crust of the Southwest India Ridge and proposed a molecular mechanism for organic condensation. This groundbreaking discovery follows the discovery in 2021 of nanoscale abiotic organic matter in mantle rocks in the Yap Trench. This represents an important…
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Nanotechnology
Researchers develop new covalent organic framework for precise targeting of cancer treatment
Credit: ACS Applied Materials & Interfaces (2024). DOI: 10.1021/acsami.4c10812 A team of researchers at New York University Abu Dhabi (NYUAD), led by Chemistry Program Director Ali Trabolsi, has developed nanoscale covalent organic frameworks (nCOFs), crystalline organic polymers modified with peptides, to treat the most aggressive form of breast cancer called triple-negative breast cancer (TNBC). The peptides enable the COF to…
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