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Complete Breakup of Liquids into Ultrafine Droplets by Grid Turbulence.
Nano Lett
January 2025
State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China.
Ultrafine droplets are crucial in materials processing and nanotechnology, with applications in nanoparticle preparation, water evaporation, nanodrug delivery, nanocoating, among numerous others. While the potential of turbulent gas flow to enhance liquid breakup is acknowledged, constructing turbulence-driven atomizers for ultrafine droplets remains challenging. Herein, we report the innovation of grid-turbulence atomization (GTA), which employs a rotating mesh to deliver liquid and an air knife to spray ultrafine droplets.
View Article and Find Full Text PDFClinical applications and research progress of totally implantable venous access ports: a literature review.
Front Oncol
January 2025
Department of Anesthesiology, The Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen, China.
Totally implantable venous access port (TIVAP), a novel intravenous infusion system that is used for long-term intravenous treatment, has become increasingly popular among cancer patients undergoing chemotherapy and other patients requiring long-term intravenous infusions. This technology has been introduced into clinical practice in China, with successful results. Nevertheless, there are still certain problems; for instance, China has not set up a specialized regulatory agency to oversee research and set guidelines for the comprehensive life-cycle management of TIVAP.
View Article and Find Full Text PDFHeat source recognition sensor mimicking the thermosensation function of human skin.
Innovation (Camb)
September 2024
Department of Materials Science and Engineering, Southern University and Science and Technology, Shenzhen 518055, China.
The human skin maintains a comfortable and healthy somatosensory state by sensing different aspects of the thermal environment, including temperature value, heat source, energy level, and duration. However, state-of-the-art thermosensors only measure basic temperature values, not the full range of the thermosensation function of human skin. Here, we propose a heat source recognition () sensor of poly(butyl acrylate)-lithium bis(n-fluoroalkylsulfonyl)imide (PBA-Li:FSI; = 1, 3, 5), which enables response to temperature, pressure, and proximity stimulus signals based on the relaxation behavior of the ionic gel and distinguished between different types of heat sources (i.
View Article and Find Full Text PDFInfluenza vaccine effectiveness against influenza-associated hospitalizations in children, Hong Kong, November 2023 to June 2024.
Vaccine X
October 2024
WHO Collaborating Centre for Infectious Disease Epidemiology and Control, School of Public Health, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong Special Administrative Region.
We conducted a test negative study from November 2023 to June 2024, enrolling 4,367 children hospitalized with acute respiratory illness in Hong Kong. Among the children who tested negative for influenza virus and SARS-CoV-2, 56.8 % had received influenza vaccination.
View Article and Find Full Text PDFPalladium-catalyzed intramolecular aerobic oxidative cross-coupling of BH/CH between -carborane and arenes.
Chem Sci
January 2025
Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences Shanghai 200032 China
An efficient Pd-catalyzed regioselective intramolecular aerobic oxidative dehydrocoupling of BH/CH between -carborane and arenes has been achieved with the construction of a series of five-, six- and seven-membered rings under mild reaction conditions. Control experiments indicate that B-H activation proceeds preferentially over the aryl C-H. These new polyarene-carborane conjugates have potential applications in materials as demonstrated by pyrene fused -carborane that exhibits unique dual-phase emission, intramolecular charge transfer (ICT), and aggregation-induced emission (AIE) properties.
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