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| http://dx.doi.org/10.1073/pnas.92.2.341 | DOI Listing |
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Nano-Metal-Organic Frameworks Isolated in Mesoporous Structures.
Adv Mater
January 2025
School of Chemistry and Chemical Engineering, Testing Center, Yangzhou University, Yangzhou, 225009, P. R. China.
As an alternative to bulk counterparts, metal-organic framework (MOF) nanoparticles isolated within conductive mesoporous carbon matrices are of increasing interest for electrochemical applications. Although promising, a "clean" carbon surface is generally associated with poor compatibility and weak interactions with metal/ligand precursors, which leads to the growth of MOFs with inhomogeneous particle sizes on outer pore walls. Here, a general methodology for in situ synthesis of eight nanoMOF composites within mesochannels with high dispersity and stability are reported.
View Article and Find Full Text PDFField-particle energy transfer during chorus emissions in space.
Nature
January 2025
Southwest Research Institute, San Antonio, TX, USA.
Chorus waves are some of the strongest electromagnetic emissions naturally occurring in space and can cause radiation that is hazardous to humans and satellites. Although chorus waves have attracted extreme interest and been intensively studied for decades, their generation and evolution remain highly debated. Here, in contrast to the conventional expectation that chorus waves are governed by planetary magnetic dipolar fields, we report observations of repetitive, rising-tone chorus waves in the terrestrial neutral sheet, where the effects of the magnetic dipole are absent.
View Article and Find Full Text PDFSuper Strong Bonding at the interface between ETL and Perovskite for Robust Flexible Optoelectronic Devices.
Angew Chem Int Ed Engl
January 2025
Peking University, College of Chemistry and Molecular Engineering, Chengfu Road No.292, 100871, Beijing, CHINA.
Organic-inorganic hybrid perovskites have demonstrated great potential for flexible optoelectronic devices due to their superior optoelectronic properties and structural flexibility. However, mechanical deformation-induced cracks at the buried interface and delamination from the substrate severely constrain the optoelectronic performance and device lifespan. Here, we design a two-site bonding strategy aiming to reinforce the mechanical stability of the SnO2/perovskite interface and perovskite layer using a multifunctional organic salt, 4-(trifluoromethoxy)phenylhydrazine hydrochloride (TPH).
View Article and Find Full Text PDFIntracellular concentration of ADA2 is a marker for monocyte differentiation and activation.
Front Med
January 2025
International Center for Aging and Cancer (ICAC), Hainan Medical University, Haikou, 571199, China.
Adenosine, a critical molecule regulating cellular function both inside and outside cells, is controlled by two human adenosine deaminases: ADA1 and ADA2. While ADA1 primarily resides in the cytoplasm, ADA2 can be transported to lysosomes within cells or secreted outside the cell. Patients with ADA2 deficiency (DADA2) often suffer from systemic vasculitis due to elevated levels of TNF-α in their blood.
View Article and Find Full Text PDFShielding design and heat transfer analysis of the transportation container of a hot batch in the Mo production facility.
Appl Radiat Isot
January 2025
Nuclear Science and Technology Research Institute (NSTRI), P.O. Box: 14155-1339, Tehran, Iran.
In molybdenum-99 (Mo) production facilities via the fission method, appropriate transportation containers must be used to transfer irradiated targets from the irradiation facility to the processing facility, following the requirements for transferring radioactive materials. In the Mo production industrial plan of Iran, the transportation container must be capable of carrying a holster containing nine irradiated low-enriched uranium targets, known as a hot batch. In this article, the proper shielding of two-layer containers based on the gamma spectrum emitted from the radioisotope inventory of a local hot batch, including fission products, activation products, and other radioisotopes produced from their decay chains, was investigated by using Monte Carlo code MCNP6.
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