26 Result(s)
within
Weiwei Li
Science, Humanities and Social Sciences, multidisciplinary
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Article
Open AccessReconfiguring nucleation for CVD growth of twisted bilayer MoS2 with a wide range of twist angles
Twisted bilayer (TB) transition metal dichalcogenides (TMDCs) beyond TB-graphene are considered an ideal platform for investigating condensed matter physics, due to the moiré superlattices-related peculiar ban...
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Open AccessLarge-scale assembly of isotropic nanofiber aerogels based on columnar-equiaxed crystal transition
Ice-templating technology holds great potential to construct industrial porous materials from nanometers to the macroscopic scale for tailoring thermal, electronic, or acoustic transport. Herein, we describe a...
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Article
Open AccessStructural basis for receptor binding and broader interspecies receptor recognition of currently circulating Omicron sub-variants
Multiple SARS-CoV-2 Omicron sub-variants, such as BA.2, BA.2.12.1, BA.4, and BA.5, emerge one after another. BA.5 has become the dominant strain worldwide. Additionally, BA.2.75 is significantly increasing in ...
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Article
Open AccessEmergent and robust ferromagnetic-insulating state in highly strained ferroelastic LaCoO3 thin films
Transition metal oxides are promising candidates for the next generation of spintronic devices due to their fascinating properties that can be effectively engineered by strain, defects, and microstructure. An ...
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Article
Open AccessRapid and up-scalable manufacturing of gigahertz nanogap diodes
The massive deployment of fifth generation and internet of things technologies requires precise and high-throughput fabrication techniques for the mass production of radio frequency electronics. We use printab...
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Open AccessEmergent multiferroism with magnetodielectric coupling in EuTiO3 created by a negative pressure control of strong spin-phonon coupling
Negative pressure has emerged as a powerful tool to tailor the physical properties of functional materials. However, a negative pressure control of spin-phonon coupling for engineering magnetism and multiferro...
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Article
Open AccessIncreasing donor-acceptor spacing for reduced voltage loss in organic solar cells
The high voltage losses ( \({V}_{{loss}}\) V ...
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Open AccessMolecular insights into receptor binding of recent emerging SARS-CoV-2 variants
Multiple SARS-CoV-2 variants of concern (VOCs) have been emerging and some have been linked to an increase in case numbers globally. However, there is yet a lack of understanding of the molecular basis for the...
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Article
Open AccessMetabolomics for early detection of stress in freshwater alga Poterioochromonas malhamensis exposed to silver nanoparticles
Silver nanoparticles (AgNPs) are one of the most used engineered nanomaterials. Despite progress in assessing their environmental implications, knowledge gaps exist concerning the metabolic perturbations induc...
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Article
Open AccessRational approach to guest confinement inside MOF cavities for low-temperature catalysis
Geometric or electronic confinement of guests inside nanoporous hosts promises to deliver unusual catalytic or opto-electronic functionality from existing materials but is challenging to obtain particularly us...
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Article
Open AccessGhrelin protects against contact dermatitis and psoriasiform skin inflammation by antagonizing TNF-α/NF-κB signaling pathways
Contact dermatitis and psoriasis are skin disorders caused by immune dysregulation, yet much remains unknown about their underlying mechanisms. Ghrelin, a recently discovered novel peptide and potential endoge...
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Article
Open AccessA pilot study of digital recording of edentulous jaw relations using a handheld scanner and specially designed headgear
The present study aimed to establish and evaluate a method for recording edentulous jaw relations digitally without occlusal bases, using a handheld scanner and specially designed headgear. The headgear mainta...
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Article
Open AccessMagnetic carboxyl functional nanoporous polymer: synthesis, characterization and its application for methylene blue adsorption
Magnetic carboxyl functional nanoporous polymer (MCFNP) was chemically fabricated by incorporation of magnetic Fe3O4 precursor into the carboxyl functional nanoporous polymer (CFNP). The as-synthesized MCFNP was ...
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Article
Open AccessLateral multilayer/monolayer MoS2 heterojunction for high performance photodetector applications
Inspired by the unique, thickness-dependent energy band structure of 2D materials, we study the electronic and optical properties of the photodetector based on the as-exfoliated lateral multilayer/monolayer MoS2 ...
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Article
Open AccessRoles of Oxygen and Hydrogen in Crystal Orientation Transition of Copper Foils for High-Quality Graphene Growth
The high-quality graphene film can be grown on single-crystal Cu substrate by seamlessly stitching the aligned graphene domains. The roles of O2 and H2 have been intensively studied in the graphene growth kinetic...
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Article
Open AccessQuantitative Fluorescence Quenching on Antibody-conjugated Graphene Oxide as a Platform for Protein Sensing
We created an immunosensing platform for the detection of proteins in a buffer solution. Our sensing platform relies on graphene oxide (GO) nanosheets conjugated with antibodies to provide quantitative binding...
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Article
Open AccessPlastic-film mulching and urea types affect soil CO2 emissions and grain yield in spring maize on the Loess Plateau, China
A 2-year field experiment was conducted on maize (Zea mays L.) to explore effective ways to decrease soil CO2 emissions and increase grain yield. Treatments established were: (1) no mulching with urea, (2) no mul...
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Article
Open AccessHyperhomocysteinaemia in rats is associated with erectile dysfunction by impairing endothelial nitric oxide synthase activity
To investigate the effect of hyperhomocysteinaemia (HHCy) on penile erectile function in a rat model, a methionine-rich diet was used in which erectile function, the reproductive system, and nitric oxide synth...
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Article
Open AccessMass Spectrometric and Spectrofluorometric Studies of the Interaction of Aristolochic Acids with Proteins
Aristolochic acid (AA) is a potent carcinogen and nephrotoxin and is associated with the development of “Chinese herb nephropathy” and Balkan endemic nephropathy. Despite decades of research, the specific mech...
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Article
Open AccessPolymorphisms in Protamine 1 and Protamine 2 predict the risk of male infertility: a meta-analysis
Several studies have investigated the association between polymorphisms in protamine 1 and 2 genes and male infertility risk, with inconsistent results to date. This meta-analysis based on the 13 published cas...
