Water electrolysis has become more well-known as a clean way to produce hydrogen, which is generally seen as a sustainable energy vector, as the use of renewable energy sources grows. Alkaline electrolysis is the most well-known and commercially feasible of the several electrolysis techniques, backed by decades of scientific advancement and consistent performance. This paper examines current developments in alkaline electrolysis, emphasizing advancements in system-level integration, diaphragm materials, and electrode design that have improved overall performance. However, a number of issues still exist, such as low operating current densities, sluggish oxygen evolution reaction kinetics, and insufficient compatibility with the variable power output of renewable energy sources. The widespread use of alkaline electrolysis is nevertheless hampered by problems with big system footprints, lengthy start-up times, and limited operational flexibility under changing circumstances. The industry is changing due to the quick development of rival technologies such solid oxide electrolysis cells and proton exchange membrane electrolyzers, which highlights the necessity of ongoing innovation in alkaline electrolysis to maintain its relevance in the changing hydrogen economy. This assessment highlights the critical financial and technological obstacles that must be removed in order for alkaline electrolysis to realize its full potential in the production of renewable hydrogen.

This study was standardized to investigate the effects of trace metals in smokers’ blood samples and find metals’ correlation with virulent diseases. An auxiliary finding was used to detect the inflated amount of metal absorption, which was determined by Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES). The large metal level does not generate immunity in the smoker’s body. Human samples display fickle computation of concentrations of these metals. The Mean±SD of As, B, Pb Sr, and Zn in smoker’s samples were (6.1±2.9 ppb), (285.9±118.1 ppb), (60.7±28.5 ppb), (28.6±9.8 ppb), and (420.5±100.4 ppb) reciprocally. The As, B, Pb, Sr, and Zn concentrations in all the smokers’ blood samples were over the acceptable limit, withal the P-value= (≥0.05) all the samples have displayed no correlation in smokers against viral inflammation. This examination can be used as a support and quotation for further investigations. These findings declare that the number of metals in the body for long periods contributes to toxicity and promotes viral infections.

Cascabela thevetia is a medicinal plant with diverse phytochemical constituents and biological potential. The increasing adverse effects of synthetic drugs and antimicrobial resistance has intensified the researchers for plant based therapeutic alternatives. However, there is little information available about liquid nitrogen mediated extraction of C. thevetia and the influence of liquid nitrogen on extraction efficiency and biological potential. Therefore, this study aimed to investigate and optimize the extraction of bioactive chemicals from the leaves of C. thevetia using ethanol-water solvent system and cryogenic processing. Maximum yield (31.08 ± 0.03%) was shown by aqueous extract (0% ethanol). Qualitative screening of extracts confirmed the presence of various bioactive compounds including carbohydrates, tannins, saponins, terpenoids, flavonoids etc. GC-MS analysis of the derivatized aqueous extract led to the identification of seven volatile and semi-volatile phytochemical constituents. The phytochemical screening of extract identified the constituents known to exhibit anti-inflammatory, antidiabetic and antioxidant and antimicrobial properties. DPPH (IC50 = 9.16 µg/mL) and ABTS (TEAC = 8.96 mM, versus 7.6 mM for pure ethanol extract) results indicated that the aqueous extract exhibited the maximum antioxidant activity. It also exhibited maximum antimicrobial activity against Escherichia coli (16.30 ± 0.20 mm) and Staphylococcus aureus (15.32 ± 0.19 mm) by using well diffusion method. Significant antifungal activity against Aspergillus niger (13.1 ± 0.19 mm zone of inhibition) also ascertained by aqueous extract. Moreover, the effectiveness of the extract changed as ethanol concentration increased, suggesting that aqueous medium, combined with liquid nitrogen-assisted extraction, provides the most effective extraction condition to yield the highest bioactive potential. Thus, these findings signify C. thevetia to be a potent source of natural therapeutic agents.