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Contact lenses for visual rehabilitation in post-keratoplasty eyes: A systematic review.
Cont Lens Anterior Eye
January 2025
Department of Regeneration and Cell Therapy, Andalusian Molecular Biology and Regenerative Medicine Centre (CABIMER), Avda. Américo Vespucio 24, 41092 Seville, Spain.
Purpose: To evaluate the role of contact lenses (CLs) in visual rehabilitation following keratoplasty.
Methods: Four databases, including PubMed, Scopus, Web of Science, and Embase were systematically searched for studies published between January 2010 and July 2023. Visual outcomes, daily wearing duration, subjective comfort, rate and etiology of CL discontinuation, corneal endothelial cell density, central corneal thickness, and complications were extracted.
[Treatment with TOPS for short femoral stump].
Oper Orthop Traumatol
January 2025
Klinik für Unfall‑, Hand und Wiederherstellungschirurgie, Universitätsmedizin Rostock, Schillingallee 35, 18057, Rostock, Deutschland.
Objective: Treatment with transcutaneous osseointegrated prosthesis systems (TOPS) for short femoral amputation stumps aims to restore independent walking ability after proximal femoral amputation by direct bone-guided prosthesis anchorage. This cannot be safely achieved with conventional socket prostheses due to the mechanically inadequate socket contact surface.
Indications: Treatment of patients with short transfemoral stumps who cannot be mobilized sufficiently with conventional socket prostheses.
Piezoresistive Cantilever Microprobe with Integrated Actuator for Contact Resonance Imaging.
Sensors (Basel)
January 2025
Institute of Semiconductor Technology (IHT), Technische Universität Braunschweig, Hans-Sommer-Straße 66, 38106 Braunschweig, Germany.
A novel piezoresistive cantilever microprobe (PCM) with an integrated electrothermal or piezoelectric actuator has been designed to replace current commercial PCMs, which require external actuators to perform contact-resonance imaging (CRI) of workpieces and avoid unwanted "forest of peaks" observed at large travel speed in the millimeter-per-second range. Initially, a PCM with integrated resistors for electrothermal actuation (ETA) was designed, built, and tested. Here, the ETA can be performed with a piezoresistive Wheatstone bridge, which converts mechanical strain into electrical signals by boron diffusion in order to simplify the production process.
View Article and Find Full Text PDFPhosphoric acid based geopolymer foam-activated carbon composite for methylene blue adsorption: isotherm, kinetics, thermodynamics, and machine learning studies.
RSC Adv
January 2025
National Centre of Excellence in Physical Chemistry, University of Peshawar Peshawar Pakistan.
In this study, a binary composite adsorbent based on activated carbon and phosphoric acid geopolymer foam (ACP) was prepared by combining phosphoric acid geopolymer (PAGP) with activated carbon (AC) and applied for the removal of methylene blue (MB). Activated carbon was thoroughly mixed with a mixture of fly ash and metakaolin in varying ratios, followed by phosphoric acid activation and thermal curing. The ACP adsorbent was characterized using scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectrophotometer, X-ray diffractometer (XRD), surface area analyser (SAP), and thermogravimetric analyser (TGA).
View Article and Find Full Text PDFStep-necking growth of silicon nanowire channels for high performance field effect transistors.
Nat Commun
January 2025
School of Electronics Science and Engineering/National Laboratory of Solid-State Microstructures, Nanjing University, Nanjing, China.
Ultrathin silicon nanowires (diameter <30 nm) with strong electrostatic control are ideal quasi-1D channel materials for high-performance field effect transistors, while a short channel is desirable to enhance driving current. Typically, the patterning of such delicate channels relies on high-precision lithography, which is not applicable for large area electronics. In this work, we demonstrate that ultrathin and short silicon nanowires channels can be created through a local-curvature-modulated catalytic growth, where a planar silicon nanowires is directed to jump over a crossing step.
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