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A Review of Cascaded Metasurfaces for Advanced Integrated Devices.
Micromachines (Basel)
December 2024
State Key Laboratory of Precision Measuring Technology & Instruments, Tianjin University, Tianjin 300072, China.
This paper reviews the field of cascaded metasurfaces, which are advanced optical devices formed by stacking or serially arranging multiple metasurface layers. These structures leverage near-field and far-field electromagnetic (EM) coupling mechanisms to enhance functionalities beyond single-layer metasurfaces. This review comprehensively discusses the physical principles, design methodologies, and applications of cascaded metasurfaces, focusing on both static and dynamic configurations.
View Article and Find Full Text PDFComplete percutaneous repair of Tetralogy of Fallot in adult: a case report.
J Cardiothorac Surg
December 2024
Department of Cardiology, IPGMER and SSKM Hospital, Flat B1, GB 43, Narayantala West, D. B. Nagar, Kolkata, 700059, India.
Tetralogy of Fallot (TOF) is the most common congenital cyanotic heart disease and is characterized by an antero-superior deviation of the infundibular septum with a consequent large malaligned ventricular septal defect (VSD) and a pulmonary and sub-pulmonary (infundibular) stenosis. Surgical repair has been the cornerstone of treatment that is electively performed early in their lives between 3 and 6 months of age. With advancements in transcatheter interventions, the complete percutaneous repair of TOF, a complex disease with multiple treatable lesions, is becoming a conceivable possibility.
View Article and Find Full Text PDFMechanism and function of CEACAM1 splice isoforms.
Eur J Clin Invest
December 2024
Department of Surgery, University of California Los Angeles, Los Angeles, California, USA.
Background: Alternative splicing is a fundamental mechanism in the post-transcriptional regulation of genes. The multifunctional transmembrane glycoprotein receptor carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1) undergoes extensive alternative splicing to allow for tunable functions in cell signalling, adhesion and modulation of immune and metabolic responses. Splice isoforms that differ in their ectodomain and short or long cytoplasmic tail (CEACAM1-S/CEACAM1-L) have distinct functional roles.
View Article and Find Full Text PDFEfficacy of 3D-printed chitosan‑cerium oxide dressings coated with vancomycin-loaded alginate for chronic wounds management.
Carbohydr Polym
February 2025
Marquette University School of Dentistry, Milwaukee, WI 53233, USA; Institute for Engineering in Medicine, Health, & Human Performance (EnMed), Batten College of Engineering and Technology, Old Dominion University, Norfolk, VA 23529, USA.
Multifunctional wound dressings with antibacterial and antioxidant properties hold significant promise for treating chronic wounds; however, achieving a balance of these characteristics while maintaining biocompatibility is challenging. To enhance this balance, this study focuses on the design and development of 3D-printed chitosan-matrix composite scaffolds, which are incorporated with varying amounts of cerium oxide nanoparticles (0, 1, 3, 5, and 7 wt%) and subsequently coated with a vancomycin-loaded alginate layer. The structure, antibiotic drug delivery kinetics, biodegradation, swelling, biocompatibility, antibacterial, antioxidant, and cell migration behaviors of the fabricated dressings were evaluated in-vitro.
View Article and Find Full Text PDFPhase Tailoring of InSe Toward van der Waals Vertical Heterostructures via Selenization of γ-InSe Semiconductor.
Small Methods
November 2024
Key Laboratory of Polar Materials and Devices (MOE), Shanghai Center of Brain-inspired Intelligent Materials and Devices, School of Physics and Electronic Science, East China Normal University, Shanghai, 200241, China.
The polymorphic nature of InSe leads to excellent phase-dependent physical properties including ferroelectricity, photoelectricity, and especially the intriguing phase change ability, making the precise phase modulation of InSe of fundamental importance but very challenging. Here, the growth of InSe with desired-phase is realized by temperature-controlled selenization of van der Waals (vdW) layered bulk γ-InSe. Detailed results of Raman spectroscopy, scanning electron microscopy (SEM), and state-of-the-art spherical aberration-corrected transmission electron microscopy (Cs-TEM) clearly and consistently show that β-InSe, 3R α-InSe, and 2H α-InSe can be perfectly obtained at ≈270, ≈300, and ≈600 °C, respectively.
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