Actinometry of devices for ultraviolet irradiation of blood for the first time. Water solutions of diazonium salts as sensitive materials are used. Outlooks for optimization of above devices are discussed.
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Front Vet Sci
January 2025
Clinic for Reproduction and Large Animals-Section for Ruminants, Veterinary Faculty, University of Ljubljana, Ljubljana, Slovenia.
Vitamin D is essential for cattle and can be synthesized in the skin under ultraviolet irradiation. This study investigated the effects of narrow-band UV-B irradiation during automatic milking on blood vitamin D concentration and the influence of hair and black skin areas on cutaneous vitamin D synthesis in Holstein Friesian cows. Fifty-one cows were stratified by milk yield, days after calving, and percentage of black skin, then divided into three groups: shaved and irradiated (80 J/m), unshaved and irradiated (129-305 J/m), and a control group.
View Article and Find Full Text PDFJ Photochem Photobiol B
January 2025
School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China. Electronic address:
Marine biofouling remains a big problem of uranium (U(VI)) extraction from seawater. To better utilize sunlight in future, the anti-biofouling properties of typical light sources were evaluated, and ultraviolet (UV) light shows best anti-biofouling capability among studied lights. UV light can damage the cellular structure and intercept the proliferation of marine microorganisms (such as V.
View Article and Find Full Text PDFNano Lett
January 2025
Institute of Electronics, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan.
Deep-ultraviolet (DUV) light is essential for applications including fabrication, molecular research, and biomedical imaging. Compact metalenses have the potential to drive further innovation in these fields, provided they utilize a material platform that is cost-effective, durable, and scalable. In this work, we present aluminum nitride (AlN) metalenses as an efficient solution for DUV applications.
View Article and Find Full Text PDFResearch (Wash D C)
January 2025
Future Energy and Innovation Laboratory, Central European Institute of Technology, Brno University of Technology, Brno 61200, Czech Republic.
Microrobots enhance contact with pollutants through their movement and flow-induced mixing, substantially improving wastewater treatment efficiency beyond traditional diffusion-limited methods. g-CN is an affordable and environmentally friendly photocatalyst that has been extensively researched in various fields such as biomedicine and environmental remediation. However, compared to other photocatalytic materials like TiO and ZnO, which are widely used in the fabrication of micro- and nanorobots, research on g-CN for these applications is still in its early stages.
View Article and Find Full Text PDFMar Environ Res
January 2025
College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
Diarrhetic shellfish toxins (DSTs) are widespread in marine environments, posing potential threats to marine ecosystems, shellfish aquaculture, and human health. Despite their prevalence, knowledge of the stability of dissolved DSTs in seawater is still limited. This study aimed to investigate the effects of bacteria, temperature, and irradiation on the stability of dissolved okadaic acid (OA) and dinophysistoxin-1 (DTX1) in seawater.
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