Adama University

About: Adama University is a education organization based out in Nazrēt, Ethiopia. It is known for research contribution in the topics: Population & Adsorption. The organization has 840 authors who have published 1010 publications receiving 5547 citations. The organization is also known as: Adama Science and Technology University & ቴክኖሎጂ ዩኒቨርሲቲ, አዳማ ሳይንስና ቴክኖሎጂ ዩኒቨርሲቲ.

Synthesis and Characterization of Ti–Fe Oxide Nanomaterials: Adsorption–Degradation of Methyl Orange Dye

Abstract: Organic solvent-free impregnation method was used to synthesize titanium-iron oxides (TIOs) nanomaterial. The physical properties of synthesized TIOs materials were characterized by XRD, SEM–EDX, BET, UV–Vis, and FTIR analytical techniques. The appearance of iron oxide (IO) on SEM image, XRD, and EDX spectra, the redshift on UV–Vis spectra of TIO compared to titanium oxide (TO), and intensity reduction in FTIR spectra proves the good impregnation of IO in TO lattice. The Langmuir and Dubinin–Radushkevich adsorption isotherm test in the dark show the domination of physical adsorption. Furthermore, the Flory–Huggins isotherm model that has $$\Delta G$$ = −11.40 kJ/mol and Fowler–Guggenheim model that has $$w$$ = −106.5 kJ/mol confirm the spontaneity of the reaction and the presence of adsorbate–adsorbate repulsive interaction, respectively. The passing of the linear Weber–Morris intraparticle adsorption–diffusion plot through the origin and well-fitting of its coefficient of determination (R2) value relative to pseudo-first-order indicates the domination of adsorption–diffusion mechanism. On the methyl orange degradation experiment, as the percentage of IO increases from 4 to 12, its degradation efficiency decreases, i.e., TIO with 4% calcined at 500 °C (TIO-4) has higher degradation efficiency with k values of 0.03025.

Role of Phytonutrients in Nutrigenetics and Nutrigenomics Perspective in Curing Breast Cancer

Abstract: Breast cancer (BC) is one of the most common type of cancer and an important contributor to female mortality. Several genes and epigenetic modifications are involved in the development and progression of BC. Research in phytochemistry, nutrigenomics, and nutrigenetics has provided strong evidence that certain phytonutrients are able to modulate gene expression at transcriptional and post-transcriptional levels. Such phytonutrients may also be beneficial to prevent and treat BC. In this review, we will focus on the nutrigenomic effects of various phytochemicals including polyphenols, phytosterols, terpenoids, alkaloids, and other compounds from different sources. Overall, these phytonutrients are found to inhibit BC cell proliferation, differentiation, invasion, metastasis, angiogenesis, and induce apoptotic cell death by targeting various molecular pathways. They also alter epigenetic mechanisms and enhance the chemosensitivity and radiosensitivity of cancer cells. Such phytochemicals may be used for the effective management of BC patients in the clinical setting in the future. The present article aims to summarize the specific molecular pathways involved in the genetic effects of phytochemicals in BC.