Nanocomposite coatings of silver particles embedded in a plasma polymer matrix possess interesting properties depending on their microstructure. The film microstructure is affected among others also by the RF power supplied during the deposition, as shown by transmission electron microscopy. The optical properties are characterized by UV-vis-NIR spectroscopy. An anomalous optical absorption peak from the Ag nanoparticles is observed and related to the microstructure of the nanocomposite films. Furthermore, a long-term aging of the coatings is studied in-depth in ambient air and in aqueous environments. It is shown that the studied films are not entirely stable. The deposition conditions and the microstructure of the films affect the processes taking place during their aging in both environments.
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http://dx.doi.org/10.1088/1468-6996/16/2/025005 | DOI Listing |
Sci Rep
January 2025
Clinical Infection, Microbiology & Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK.
It is established that patients hospitalised with COVID-19 often have ongoing morbidity affecting activity of daily living (ADL), employment, and mental health. However, little is known about the relative outcomes in patients with COVID-19 neurological or psychiatric complications. We conducted a UK multicentre case-control study of patients hospitalised with COVID-19 (controls) and those who developed COVID-19 associated acute neurological or psychiatric complications (cases).
View Article and Find Full Text PDFAustralas J Ageing
March 2025
Faculty of Nutrition, Federal University of Alfenas, Alfenas, Minas Gerais, Brazil.
Objective: Bone mineral density changes during the life span, rising rapidly during adolescence, plateauing around 30 years of age and decreasing in later years. Life events such as pregnancy and lactation temporarily reduce bone density, and their long-term effects on osteoporosis development are still unclear. This study aimed to analyse the association between pregnancy in adolescence and osteoporosis in aged women.
View Article and Find Full Text PDFReumatismo
January 2025
Unit of Dermatology, Department of Medicine and Aging Science, G. d'Annunzio University, Chieti.
Objective: Psoriatic arthritis (PsA) can be treated with biological drugs targeting IL-17A, such as secukinumab, with good responses and long-term positive outcomes in clinical studies.
Methods: An observational study was conducted on adult subjects with PsA and comorbidities, treated with secukinumab after prior therapy with conventional disease-modifying anti-rheumatic drugs or biological agents that were discontinued due to lack of efficacy or adverse drug reactions. Patients were followed up with clinical visits at 3, 6, 9, and 12 months and evaluated for disease activity, pain, and quality of life, with respect to values recorded at baseline.
Clin Interv Aging
January 2025
Department of Infectious Diseases, Wenzhou Central Hospital, Wenzhou, People's Republic of China.
Objective: To understand the current status and analyse the factors influencing frailty in older adults patients with pulmonary tuberculosis.
Methods: This retrospective case-control study included 204 older adults patients with pulmonary tuberculosis. The enrolled patients were divided into a frailty group (n = 101) and a non-frailty group (n = 103).
Public Health Pract (Oxf)
June 2025
MRC Unit for Lifelong Health and Ageing at UCL, University College London, London, UK.
Objectives: Disuse theory predicts that cognitive function is vulnerable to transitions that remove factors that support cognitive skills. We sought to investigate whether non-employment over the working life was associated with cognitive function and decline in later life (≥60 years old), and possible gender differences in the association.
Study Design: Longitudinal study.
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