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Sensitivity of Lamb waves in viscoelastic polymer plates to surface contamination.
Ultrasonics
January 2025
Institut Langevin, ESPCI Paris, Université PSL, CNRS, 1 rue Jussieu, Paris, 75005, France.
Detecting surface contamination on thin thermoformed polymer plates is a critical issue for various industrial applications. Lamb waves offer a promising solution, though their effectiveness is challenged by the strong attenuation and anisotropy of the polymer plates. This issue is addressed in the context of a calcium carbonate (CaCO) layer deposited on a polypropylene (PP) plate.
View Article and Find Full Text PDFA method of enhanced shear wave elastography based on Chirp coded excitation.
Ultrasonics
January 2025
Medical Ultrasound Department for the Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, Jiangsu 215163, China. Electronic address:
Shear Wave Elastography (SWE) is an imaging technique that detects shear waves generated by tissue excited by Acoustic Radiation Force (ARF), and characterizes the mechanical properties of soft tissue by analyzing the propagation velocity of shear wave. ARF induces a change in energy density through the nonlinear propagation of ultrasound waves, which drives the tissue to generate shear waves. However, the amplitude of shear waves generated by ARF is weak, and the shear waves are strongly attenuated in vivo.
View Article and Find Full Text PDFInhalable Carbonyl Sulfide Donor-Hybridized Selective Phosphodiesterase 10A Inhibitor for Treating Idiopathic Pulmonary Fibrosis by Inhibiting Tumor Growth Factor-β Signaling and Activating the cAMP/Protein Kinase A/cAMP Response Element-Binding Protein (CREB)/p53 Axis.
ACS Pharmacol Transl Sci
January 2025
School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, P. R. China.
Idiopathic pulmonary fibrosis (IPF) is a debilitating, incurable, and life-threatening disease that lacks effective therapy. The overexpression of phosphodiesterase 10A (PDE10A) plays a vital role in pulmonary fibrosis (PF). However, the impact of selective PDE10A inhibitors on the tumor growth factor-β (TGF-β)/small mother against decapentaplegic (Smad) signaling pathway remains unclear.
View Article and Find Full Text PDFCross-Species Characterization of Transcranial Ultrasound Propagation.
Brain Stimul
January 2025
Pazhou Lab (Guangzhou), Guangzhou 510335, China; The School of Automation Science and Engineering, South China University of Technology, Guangzhou 510641, China. Electronic address:
Background: Transcranial ultrasound stimulation (TUS) has shown promising prospects as a non-invasive neuromodulation technique for both animals and humans. However, ultrasonic propagation characteristics within the brain differ significantly from those in free space. There is currently a lack of comprehensive studies on the effects of skull thickness on focal point position, full width at half maximum (FWHM), and acoustic intensity.
View Article and Find Full Text PDFMechanosensitive Ca channel TRPV1 activated by low-intensity pulsed ultrasound ameliorates acute kidney injury through Notch1-Akt-eNOS signaling.
FASEB J
January 2025
Department of Urology, The Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China.
Acute Kidney Injury (AKI) is a significant medical condition characterized by the abrupt decline in kidney function.Low-intensity pulsed ultrasound (LIPUS), a non-invasive therapeutic technique employing low-intensity acoustic wave pulses, has shown promise in promoting tissue repair and regeneration. A novel LIPUS system was developed and evaluated in rat AKI models, focusing on its effects on glomerular filtration rate (GFR), blood urea nitrogen (BUN), serum creatinine (SCr), and the Notch1-Akt-eNOS signaling pathway.
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