Cellulose-based aerogels modulate fragrance adsorption and controlled release by carbonization/in-situ aromatization.

Fragrances are indispensable additives in consumer products including foods, cosmetics, and tobacco products. However, their inherent instability leads to rapid quality degradation and performance loss, driving the urgent need for controlled-release systems to stabilize fragrance performance. In this work, cellulose nanofibers (CNF) were used to prepare CNF aerogel-like gels (CA) and carbonized CNF aerogels (C-CA) through freeze-drying and high-temperature carbonization.

Advancements in cobalt-based oxide catalysts for soot oxidation: Enhancing catalytic performance through modification and morphology control.

The widespread use of diesel engines results in significant environmental contamination due to emitted pollutants, particularly soot particles. These pollutants are detrimental to public health. At present, one of the most effective ways to remove soot particles is the catalytic diesel particulate filter after-treatment technology, which requires the catalyst to have superior low temperature activity.

MiR-134-5p/BDNF/TrkB/CREB signaling pathway involved in the depression-like behaviors in mice following exposure to benzo[a]pyrene.

Benzo[a]pyrene (B[a]P) is known to cause depression-like symptoms in mice, however, the mechanisms are still unclear. The present study aimed to establish a mouse model of depression-like behavior induced by B[a]P and to elucidate the possible underlying mechanisms. Forty robust male ICR mice were randomly categorized into 4 groups and received intraperitoneal injections (i.

Enhancement of carbon monoxide catalytic oxidation performance by co-doping silver and cerium in three-dimensionally ordered macroporous Co-based catalyst.

Carbon monoxide (CO) catalytic oxidation offers an effective solution for environmental pollutant; however, its progress is limited by sluggish kinetics, and efficient catalysts remain scarce. Herein, we prepared Ag-Ce co-doped three-dimensionally ordered macroporous (3DOM) Co-based catalysts through the synergistic approach of co-doping and morphology control, systematically investigating their CO catalytic oxidation mechanisms. The appropriate amount of Ag-Ce co-doping maintained the original 3DOM structure, promote the mass transfer and diffusion of CO, promoted the redox capacity by increasing the ratio of Co to surface reactive oxygen species (O/ O), achieving low temperature conversion of CO.

The bacterial succession and its role in flavor compounds formation during the fermentation of cigar tobacco leaves.

Fermentation is the key process required for developing the characteristic properties of cigar tobacco leaves, complex microorganisms are involved in this process. However, the microbial fermentation mechanisms during the fermentation process have not been well-characterized. This study investigated the dynamic changes in conventional chemical composition, flavor compounds, and bacterial community during the fermentation of cigar tobacco leaves from Hainan and Sichuan provinces in China, as well as the potential roles of bacteria.

Metformin alleviates the cognitive impairment induced by benzo[a]pyrene via glucolipid metabolism regulated by FTO/FoxO6 pathway in mice.

Benzo[a]pyrene (B[a]P) is neurotoxic; however, the mechanism and prevention are still unclear. In this study, we assessed the intervention effect of metformin (MET) on cognitive dysfunction in mice induced by B[a]P from the perspective of glucolipid metabolism. Forty-two male healthy ICR mice were randomly categorized into 6 groups and were gavaged with B[a]P (0, 2.

Deficiency of Grx1 leads to high sensitivity of HeLaS3 cells to oxidative stress via excessive accumulation of intracellular oxidants including ROS.

Oxidative stress is often initiated by excess reactive oxygen species (ROS) production, resulting in macromolecular damage, which is implicated in many disease states. Glutaredoxin 1 (Grx1) is an antioxidant enzyme that plays an important role in redox signaling and redox homeostasis. In the present study, we generated HeLaS3 cell lines deficient in Grx1 by the CRISPR/CAS9 system to clarify how Grx1 affects the physiological activities of HeLaS3 cells to respond to oxidative stress.