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Fourier ptychographic microscopy (FPM) can provide high-throughput imaging by computationally combining low-resolution images at different spatial frequencies within the Fourier domain. The core algorithm for FPM reconstruction draws upon phase retrieval techniques, including methods such as the ptychographic iterative engine (PIE), regularized PIE (rPIE), and embedded pupil function FPM (EPRY-FPM). The calibration of the physical setup plays a crucial role in the quality of the reconstructed high space-bandwidth product (SPB) image.
View Article and Find Full Text PDFPreparation and Characterization of the Release Behavior of PVA: Na-Alg Microsphere Containing Fampridine.
Turk J Pharm Sci
January 2025
İstanbul Technical University Faculty of Chemical-Metallurgical Engineering, Department of Chemical Engineering, İstanbul, Türkiye.
Objectives: This study focuses on both the formulation of bio-based microspheres containing fampridine for the treatment of multiple sclerosis and provides an alternative to the commercially available product (Fampyra 10 mg, Biogen).
Materials And Methods: The encapsulation of fampridine was achieved using polyvinyl alcohol (PVA) and sodium alginate (Na-Alg) polymers. Glutaraldehyde (GA) and hydrochloric acid (HCI) were used as crosslinking agents.
WS/MHS PdTe/Si Mixed-Dimensional Heterojunction as Ultra-Broadband Photodetector for Health and Safety Monitoring.
Adv Healthc Mater
January 2025
Harvard Medical School, Harvard University, Boston, MA, 02115, USA.
Ultra-broadband photodetectors (UB-PDs) are essential in medical applications, public safety monitoring, and various other fields. However, developing UB-PDs covering multiple bands from ultraviolet to medium infrared remains a challenge due to material limitations. Here, a mixed-dimensional heterojunction composed of 2D WS/monodisperse hexagonal stacking (MHS) 3D PdTe particles on 3D Si is proposed, capable of detecting light from 365 to 9600 nm.
View Article and Find Full Text PDFImpact of Ultraviolet C Radiation on Male Fertility in Rats: Suppression of Autophagy, Stimulation of Gonadotropin-Inhibiting Hormone, and Alteration of miRNAs.
Int J Mol Sci
January 2025
Department of Physiology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44519, Egypt.
While ultraviolet C (UVC) radiation has beneficial applications, it can also pose risks to living organisms. Nevertheless, a detailed assessment of UVC radiation's effects on mammalian male reproductive physiology, including the underlying mechanisms and potential protective strategies, has not yet been accomplished. This study aimed to examine the critical roles of oxidative stress, autophagy, reproductive hormonal axis, and microRNAs in UVC-induced reproductive challenges in male rats.
View Article and Find Full Text PDFScots Pine Bark Extracts as Co-Hardeners of Epoxy Resins.
Molecules
December 2024
Department of Physical Chemistry, Faculty of Chemistry, University of Łódź, Pomorska 163/165, 90-236 Łódź, Poland.
Extracts from natural waste like bark or leaves are great sources of phytochemicals, which contain functional groups (hydroxyl, carboxylic, vinyl, allyl) attractive in terms of polymer synthesis. In this study, the synthesis of epoxy with an extract of Scots pine bark as a natural co-hardener was evaluated. Ultraviolet-visible (UV-Vis) spectroscopy was used for the identification of phytochemicals with conjugated dienes and quantification of TPC.
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