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Enhanced superhydrophobic robustness of black silicon employing nanojungle structures.
Nanoscale
January 2025
Department of Chemistry and Materials Science, Tietotie 3, Espoo, 02150, Finland.
Superhydrophobic surfaces are essential in various industries such as textiles, aviation, electronics and biomedical devices due to their exceptional water-repellent properties. Black silicon (b-Si) would be an ideal candidate for some applications due to its nanoscale topography made with a convenient lithography-free step and complementary metal-oxide-semiconductor (CMOS) compatible fabrication process. However, its use is hindered by serious issues with mechanical robustness.
View Article and Find Full Text PDFIntrinsic dual-emitting Si dots for high-precision and broad-range pH detection.
Anal Chim Acta
February 2025
Shenzhen Key Laboratory of Synthetic Genomics, Guangdong Provincial Key Laboratory of Synthetic Genomics, CAS Key Laboratory of Quantitative Engineering Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China. Electronic address:
Background: High-precision and broad-range pH detection is critical for health status assessment, such as signal transduction, enzyme activity, endocytosis, and cell proliferation and apoptosis. Although pH-responsive ratiometric fluorescent probes offer an effective pH monitoring strategy, their preparation often requires multi-step modification and decreases fluorescence efficiency and stability. Herein, we developed a simple method to prepare fluorescent Si dots with dual emission centers for high-precision and broad-range pH monitoring, and the detection of urease based on pH-responsive Si dots and pH monitoring in living cell was further explored.
View Article and Find Full Text PDFCRISPR-associated Plasmonic Colorimeter Method (Ca-PCM): A real-time RGB detection system for gold nanoparticles-based nucleic acid biosensors.
Anal Chim Acta
February 2025
Fundación IMDEA Nanociencia, Madrid, Spain; Division of Hematopoietic Innovative Therapies, Innovative Therapies Unit. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (CIEMAT), 28040, Madrid, Spain; Advanced Therapies Unit, Instituto de Investigación Sanitaria Fundación Jiménez Díaz (IIS-FJD, UAM), 28040, Madrid, Spain. Electronic address:
Background: The detection of genetic sequences represents the gold standard procedure for species discrimination, genetic characterisation of tumours, and identification of pathogens. The development of new molecular detection methods, accessible and cost effective, is of great relevance. Biosensors based on plasmonic nanoparticles, such as gold nanoparticles (AuNPs), provide a powerful and versatile platform for highly sensitive, economic, user-friendly and label-free sensing.
View Article and Find Full Text PDFCatalytic effects of multiple heterointerfaces on the hydrogen storage properties of magnesium hydride.
J Colloid Interface Sci
January 2025
State Key Laboratory of Silicon and Advanced Semiconductor Materials and School of Materials Science and Engineering, Zhejiang University, Hangzhou 310058, China. Electronic address:
The application and further industrialization of magnesium hydride (MgH) are restricted by its intrinsically high de-hydrogenation temperature and dragged kinetics though it is believed as one of the most encouraging solid-state hydrogen storage materials with considerable capacity. Herein, a bimetallic layered MXene VNbC, which was mixed with MgH by high energy ball milling, was obtained by etching compact layered MAX VNbAlC with HF. The beginning de-hydrogenation temperature of the as-prepared MgH blended with 10 wt% VNbC (denoted as MgH-10 VNbC) composites was excitingly 170 °C and it exhibited faster kinetics and excellent cycling stability.
View Article and Find Full Text PDFA silicon rhodamine 1,2-dioxetane chemiluminophore for near-infrared imaging.
Org Biomol Chem
January 2025
Department of Chemistry, Southern Methodist University, Dallas, TX 75275-0314, USA.
Near-infrared (NIR) chemiluminescent probes have attracted increasing attention in recent years due to their attractive properties for imaging. Herein, we developed a NIR chemiluminophore silicon rhodamine (SiRCL-1) based on the intramolecular energy transfer process from excited state benzoate to a silicon rhodamine emitter under aqueous conditions. SiRCL-1 exhibited dual emission peaks at 540 nm and 680 nm with a high signal penetration through tissue at 680 nm (>30 mm) and long-lasting luminescence (>50 min), demonstrating its significance as a chemiluminescence scaffold for biological application.
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