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Achieving high-crystalline-quality, large-size iron garnet magneto-optic (MO) films on silicon substrates remains a critical challenge for CMOS-compatible on-chip non-reciprocal devices like isolators and circulators. In this study, we explored ion slicing on commercial yttrium iron garnet (YIG) crystals, bismuth-doped iron garnet (BIG), and newly developed YIG ceramics. After He ion implantation, wafer bonding and annealing, the BIG film on silicon was successfully fabricated, but its thickness and crystalline phase deviated from expectations.
View Article and Find Full Text PDFIron-based driven chitosan quaternary ammonium salt self-gelling powder: Sealing uncontrollable bleeding and promoting wound healing.
Int J Biol Macromol
January 2025
Key Laboratory for Biobased Materials and Energy of Ministry of Education, College of Materials and Energy, South China Agricultural University, Guangzhou 510642, China. Electronic address:
Uncontrollable bleeding poses a significant risk of death and cost in wars, vehicle accidents, and first aid. Hence, in order to seal uncontrollable bleeding and promote wound healing, the Fe-driven chitosan quaternary ammonium salt self-gelling powder (QPF) was prepared using 5%QCS/AA/Fe with the 52.72 % ± 0.
View Article and Find Full Text PDFBoosting Light-Driven CO2 Conversion into CO by a Polypyridine Iron(II) Catalyst Using an Organic Sensitizer.
ChemSusChem
January 2025
Universita degli Studi di Ferrara, Dipartimento di Scienze Chimiche e Farmaceutiche, Via Borsari 46, 44121, Ferrara, ITALY.
Direct photochemical conversion of CO2 into a single carbon-based product currently represents one of the major issues in the catalysis of the CO2 reduction reaction (CO2RR). In this work, we demonstrate that the combination of an organic photosensitizer with a heptacoordinated iron(II) complex allows to attain a noble-metal-free photochemical system capable of efficient and selective conversion of CO2 into CO upon light irradiation in the presence of N,N-diisopropylethylamine (DIPEA) and 2,2,2-trifluoroethanol (TFE) as the electron and proton donor, respectively, with unprecedented performances (ΦCO up to 36%, TONCO > 1000, selectivity > 99%). As shown by transient absorption spectroscopy studies, this can be achieved thanks to the fast rates associated with the electron transfer from the photogenerated reduced dye to the catalyst, which protect the dye from parallel degradation pathways ensuring its stability along the photochemical reaction.
View Article and Find Full Text PDFNanotechnology: an emerging field for enhancing micronutrient enrichment in millets via biofortification strategies-present knowledge and prospects for the future.
J Food Sci Technol
February 2025
Department of Food Processing and Quality Control, Stella Maris College (Autonomous), Chennai, Tamilnadu India.
Pharmaceutical supplementation and dietary fortification are the most common approaches to reducing vitamin deficits. To improve the health and nutritional value of crops, agronomic biofortification necessitates the direct application of nutrients. Producers using micronutrient fertilizers to increase the fortification of crops are essential to the success of biofortification.
View Article and Find Full Text PDFUnderstanding and managing iron deficiency anaemia.
Nurs Stand
January 2025
programme leader BSc (Hons) Nutrition, Department of Natural Sciences, Faculty of Science and Technology, Middlesex University, London, England.
Iron deficiency anaemia develops when there is not enough iron in the body to sustain normal red blood cell production. It is a major cause of morbidity worldwide and is linked to a range of comorbid conditions, including gastrointestinal cancer. In the UK, iron deficiency anaemia is the most common cause of anaemia identified in primary care and is estimated to affect 3% of men and 8% of women.
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