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Defects are inherent in transition metal dichalcogenides and significantly affect their chemical and physical properties. In this study, surface defect electrochemical nanopatterning is proposed as a promising method to tune in a controlled manner the electronic and functional properties of defective MoS₂ thin films. Using parallel electrochemical nanolithography, MoS₂ thin films are patterned, creating sulphur vacancy-rich active zones alternated with defect-free regions over a centimetre scale area, with sub-micrometre spatial resolution. The patterned films display tailored optical and electronic properties due to the formation of sulphur vacancy-rich areas. Moreover, the effectiveness of defect nanopatterning in tuning functional properties is demonstrated by studying the electrocatalytic activity for the hydrogen evolution reaction.
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http://dx.doi.org/10.1002/smtd.202401486 | DOI Listing |
J Phys Chem Lett
September 2025
National Laboratory of Solid-State Microstructures, School of Electronic Science and Engineering, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China.
Stress engineering is an effective way to tune the performance of semiconductors, which has been verified in the work of inorganic and organic single-crystal semiconductors. However, due to the limitations of the vapor-phase growth preparation conditions, the deposited polycrystalline organic semiconductors are more susceptible to residual stress. Therefore, it is of great research significance to develop a low-cost stress engineering applicable to vapor-deposited semiconductors.
View Article and Find Full Text PDFFood Funct
September 2025
College of Food Science, Southwest University, Chongqing, 400715, China.
Bifidobacteria are naturally found in the human gut and quickly establish dominance shortly after birth, playing a crucial role in the development and stability of the infant gut microbiota. A growing body of research suggests that host and environmental factors shape the colonization and the relative abundance of bifidobacteria in the infant gut during early life. Understanding the factors that influence bifidobacterial colonization and maintaining normal colonization levels are keys to ensuring gut health.
View Article and Find Full Text PDFJ Urban Health
September 2025
School of Architecture and Design, Harbin Institute of Technology, Harbin, 150001, China.
Street-level environments play a vital role in children's development by promoting their physical activity, cognitive growth, and overall development. This study systematically reviews the measurement tools available to assess street environments according to children's needs. This systematic review was conducted according to the PRISMA-COSMIN guidelines.
View Article and Find Full Text PDFMol Divers
September 2025
Department of Pharmacognosy, College of Pharmacy, Prince Sattam Bin Abdulaziz University, 11942, Al Kharj, Saudi Arabia.
Cyclin-dependent kinase 20 (CDK20), also known as cell cycle-related kinase (CCRK), plays a pivotal role in hepatocellular carcinoma (HCC) progression by regulating β-catenin signaling and promoting uncontrolled proliferation. Despite its emerging significance, selective small-molecule inhibitors of CDK20 remain unexplored. In this study, a known CDK20 inhibitor, ISM042-2-048, was employed as a reference to retrieve structurally similar compounds from the PubChem database using an 85% similarity threshold.
View Article and Find Full Text PDFBiomater Sci
September 2025
School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia.
The increasing use of blood-contacting medical devices has brought about significant advancements in patient care, yet it also presents challenges such as thrombus formation and infection risks. Surface coatings play a vital role in mitigating these side effects, enhancing the safety and effectiveness of such devices. In this study, we introduced a novel coating employing poly(aspartic acid) (PASP), which can be easily applied through various modification pathways.
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