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Vaccinium myrtillus L. (European blueberry) hydrophilic extracts (Vm) are valuable raw ingredients for food, cosmetic and pharmaceutical applications. The high content of antioxidant compounds in blueberry can be exploited for obtaining more stable biomaterials. The goal of the study was the evaluation of the antioxidant activity (DPPH-, 2,2-diphenyl-1-pycryl-hydrazyl) of autochthonous blueberry (C-mpeni, Romania) and stabilizing of the Vm by nanoencapsulation in cyclodextrins (CD). Kinetic parameters were also ev...

The goal of the study was the obtaining of Castanea sativa Mill., CS (sweet chestnut) antioxidant extracts and lipid fractions from skin and pulp, followed by nanoencapsulation in cyclodextrins (CDs). The nutritional and medicinal values of fruits are mainly due to the presence of low-gluten carbohydrates, vitamins, as well as essential fatty acids (FA), including omega-3. In this study, the KG variety was subjected to the Soxhlet separation of the lipid fractions (petroleum ether) and antioxidant polyphenols (eth...

We present herein a thoroughly study concerning synthesis, structure and fluorescent properties of two classes of pyrrolodiazine derivatives: pyrrolopyridazine respectively pyrrolophthalazine cycloadducts. The synthesis is straight and efficient, consisting in a 3+2 dipolar cycloaddition reaction of diazinium ylides to dipolarophiles with triple bound. The structure of compounds was proven by elemental and spectral analysis. The fluorescence studies reveal that the pyrrolodiazine compounds are intense blue emitter...

Nanotechnology is increasingly being integrated into modern industrial applications, including the development of next-generation nanofertilizers (NFs) containing essential and non-essential elements such as zinc and silica. These NFs often intensify yield forming attributes without compromising the final crop quality. Larger knowledge about NFs application is still lacking in agronomic academic literature. It is particularly relevant for soybean cultivation, given its importance in human nutrition, feed industry ...

Biomass is the renewable energy resource that contributes to the energy balance by conversion into heat, by combustion in specialized facilities, conversion into electricity based on steam or gas obtained that drives turbines and electric generators or in both cases combined, through the cogeneration process. However, in order to be collected from nature, it must be optimally organized so that the effects on the environment are not harmful. Also, in the conversion processes, polluting emissions must be as low as p...

Nickel (Ni) composite coatings fabricated via electrodeposition have garnered significant attention due to their enhanced microstructure, tribological performance, and corrosion resistance. This review provides a comprehensive analysis of recent advancements in Ni-based composite coatings, emphasizing the influence of embedded reinforcements such as ceramic particles, polymers, and metallic phases on their structural and functional properties. The microstructural characteristics, including grain size refinement, p...

In the context of sustainable development and the urgent need to reduce the environmental footprint of the construction industry, the reuse of recycled concrete waste in mortar formulations has emerged as a promising strategy. However, the incorporation of such waste materials typically leads to diminished mechanical performance, primarily due to the reduced chemical activity of the recycled aggregates. To address this drawback, nanoparticles have gained attention as functional additives capable of restoring or ev...

Nanoclay is increasingly being integrated into construction materials to enhance their mechanical properties. This advanced material improves the durability and strength of concrete, making structures more resilient to environmental stresses. Research shows that incorporating nanoclay into asphalt can improve its performance and longevity in road construction. The paper focuses on laboratory research on the effect of nanoclay adding on bitumen binder properties. The changes in penetration, softening point, and vis...

We present herein a thoroughly study regarding the synthesis, structure and biological activity of some hybrid diazine - polyphenols derivatives. The synthesis was performed under conventional thermal heating and microwave irradiation, by using a straight and efficient method: a N-alkylation reaction of diazine (pyridazine or phthalazine) with reactive halogenated derivatives. The structure of the hybrids was proven by elemental and spectral analysis. Under MW irradiation, the N-alkylation reaction of diazine have...

An AI camouflage design was used to create an IR camouflage textile structure, utilising Grafco screen printing inks and Chromatex HD10 pigments characterised by high brightness and colour resistance. For vector image editing, CorelDRAW software was employed. The screen-printing process was carried out following these steps: frame selection, screen selection, and image preparation. The reflection index was determined using a spectrophotometric method with a UV-VIS-NIR Perkin Elmer Lambda 950 spectrophotometer, mea...