Results 31 to 40 of about 2,882,964 (299)

Three New Ent-Kaurane Diterpenes with Antibacterial Activity from Sigesbeckia orientalis

Molecules
Three novel ent-kaurane diterpenes, namely sigesbeckin A–C (1–3), in conjunction with eight previously identified analogues (4–11), were isolated from Sigesbeckia orientalis. Their chemical structures were resolved through multiple spectroscopic analyses.
Zhong-Shun Zhou, Zhao-Jie Wang, Bei Tian, Yan-Yan Zhu, Mei-Zhen Wei, Yun-Li Zhao, Xiao-Dong Luo   +6 more
doaj   +1 more source

Local Static Hold-up in a Rotary Sieved Disc Contactor for a Butyl Acetate-water System

International Journal of Technology, 2016
Considering the importance of liquid static holdup in liquid-liquid extraction columns, a novel experimental approach for predicting the mentioned parameter in a rotary sieved disc contactor has is presented in this research.
Fatemeh Behzad, Hossein Bahmanyar, Seyed Mohammad Ali Mousavian, Hoda Molavi, Fatemeh Fogh   +4 more
doaj   +1 more source

Magnet Integrated Fabric Phase Sorptive Extraction (MI-FPSE): A Powerful Green(er) Alternative for Sample Preparation

Analytica, 2022
Green(er) sample preparation technologies still dominate as the anticipated improvement in all analytical protocols. Separation scientists all over the world continuously strive to comply with the Green Analytical Chemistry (GAC) demands.
Victoria Samanidou, Abuzar Kabir
doaj   +1 more source

Optimization and characterization of silver nanoparticle-modified luffa for the adsorption of ketoprofen and reactive yellow 15 from aqueous solutions

Scientific Reports
In the current work, luffa was modified with silver nanoparticles to prepare LF/AgNPs adsorbent for the elimination of ketoprofen and reactive yellow 15 (RY15) from aqueous media.
Soheil Tavassoli, Setareh Cheraghi, Pardis Etemadifar, Afsaneh Mollahosseini, Shirin joodaki, Niloofar Sedighi   +5 more
doaj   +1 more source

Paracetamol extraction tablets: a green technique for teaching of pharmaceutical chemistry

Revista Brasileira de Ensino de Ciência e Tecnologia, 2020
This work presents the evaluation of the chemical vegetable for the extraction of the active ingredient of paracetamol 500 mg tablets, with optimization of the process through the holistic metrics of Green Chemistry. The previous analysis, indicated as a
Juliana Aparecida Bolzan, Sandra Inês Adams Angnes Gomes, Marilei Casturina Mendes Sandri   +2 more
doaj   +1 more source

Learning about Pesticide Use Adapted from Ethnoscience as a Contribution to Green and Sustainable Chemistry Education

Education Sciences, 2022
This study shows how students can learn about green and sustainable chemistry by using the knowledge perspective of a local indigenous culture as a starting point.
Robby Zidny, Ingo Eilks
doaj   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Insights into chemistry, extraction and industrial application of lemon grass essential oil -A review of recent advances

Food chemistry: X
Lemongrass essential oil (LEO), extracted from high-oil lemongrass, gains prominence as a versatile natural product due to growing demand for safe health solutions.
Barjees Ashaq, Khansa Rasool, Samira Habib, Iqra Bashir, Naseh Nisar, Sehrish Mustafa, Qudsiya Ayaz, G. A. Nayik, J. Uddin, S. Ramniwas, R. Mugabi, S. Wani   +11 more
semanticscholar   +1 more source

Organoids in pediatric cancer research

FEBS Letters, EarlyView.
Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley   +1 more source

Dietary ellagic acid inhibiting gastrointestinal pathogens by modulation of microbiome-metabolite-immune axis

Natural Products and Bioprospecting
Antibiotic-induced depletion of the gut microbiota facilitated the colonization of vancomycin-resistant Enterococci (VRE) in the gastrointestinal tract, and then increased patients' susceptibility to secondary infections.
Li-Na Mei, Jia-Shan Shen, Yu Duan, Zhuo-Qi Shi, Hui-Zhen Peng, Xiao-Dong Luo   +5 more
doaj   +1 more source