The global trend towards conscious consumption plays an important role in consumer preferences regarding both the composition and quality of food and packaging materials, including sustainable ones. The development of biodegradable active packaging materials could reduce both the negative impact on the environment due to a decrease in the use of oil-based plastics and the amount of synthetic preservatives. This review discusses relevant functional additives for improving the bioactivity of biopolymer-based films.
View Article and Find Full Text PDFAg-Se nanostructure films were deposited on a-Se/nylon templates by a template-engaged reaction. Firstly, amorphous selenium (a-Se) was deposited on nylon by employing the chemical bath deposition method while using HSeO and NaSO solutions with an increasing selenium deposition time. Then, these a-Se/nylon templates were exposed into AgNO solution at ambient temperature and pressure.
View Article and Find Full Text PDFWe aimed to provide a clinical case presentation of aseptic meningitis as an extrahepatic manifestation of hepatitis C. A 28-year-old lady has been admitted to the Regional Clinical Center of Neurosurgery and Neurology, Uzhhorod City, Ukraine, with mild meningeal signs and symptoms upon admission. Complex neurological, clinical, laboratory, and imaging examination was performed within 24 hours of admission.
View Article and Find Full Text PDFThe convergence of climate change and post-Soviet socio-economic and institutional transformations has been underexplored so far, as have the consequences of such convergence on crop agriculture in Central Asia. This paper provides a place-based analysis of constraints and opportunities for adaptation to climate change, with a specific focus on water use, in two districts in southeast Kazakhstan. Data were collected by 2 multi-stakeholder participatory workshops, 21 semi-structured in-depth interviews, and secondary statistical data.
View Article and Find Full Text PDFPhotophysical properties of two highly emissive three-coordinate Cu(I) complexes, (IPr)Cu(py2-BMe2) (1) and (Bzl-3,5Me)Cu(py2-BMe2) (2), with two different N-heterocyclic (NHC) ligands were investigated in detail (IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene; Bzl-3,5Me = 1,3-bis(3,5-dimethylphenyl)-1H-benzo[d]imidazol-2-ylidene; py2-BMe2 = di(2-pyridyl)dimethylborate). The compounds exhibit remarkably high emission quantum yields of more than 70% in the powder phase. Despite similar chemical structures of both complexes, only compound 1 exhibits thermally activated delayed blue fluorescence (TADF), whereas compound 2 shows a pure, yellow phosphorescence.
View Article and Find Full Text PDF