Results 61 to 70 of about 21,056 (199)

The marine sponge genus Dysidea sp: the biological and chemical aspects—a review

Future Journal of Pharmaceutical Sciences, 2023
Background Marine sponges and other marine invertebrates are considered hidden treasures for a variety of secondary metabolites with pharmacognostic and pharmacological activities which have the potential to create future “super drugs.” The main body of ...
Noha Fathallah, Ahmed Tamer, Reem Ibrahim, Mariam kamal, Mariam El Kes   +4 more
doaj   +1 more source

Benzylic Oxidation of Pillar[5]Arene: From Homo‐ to Cross‐Conjugated Macrocyclic Systems

Chemistry – A European Journal, EarlyView.
Selective benzylic oxidations of pillar[5]arene have been carried out to generate all the possible oxidized derivatives containing from one up to five carbonyl subunits. Effects resulting from the homo‐ and the cross‐conjugation within this series of compounds have been investigated in details and analyzed with the help of DFT calculations.
Jorge Juan Marco‐Guimbao, Eric Meichsner, Unai Calvo, Michel Holler, Béatrice Delavaux‐Nicot, Jon M. Matxain, Juan Luis Delgado, Jean‐François Nierengarten, Iwona Nierengarten   +8 more
wiley   +1 more source

Bi(OTf)₃-catalyzed acylation of p-quinones: a facile synthesis of acylated hydroquinones

, 2004
p-Quinones undergo smooth acylation with acetic anhydride in the presence of 2 mol % of bismuth triflate under mild conditions to afford the corresponding 1,4-diacylated-2-acetoxylated hydroquinones in excellent yields with high ...
Swamy, T., Raghavender Rao, K., Yadav, J. S., Subba Reddy, B. V.   +3 more
core   +1 more source

Mit Oliven zur Batterie – Experimente zu Batterien mit unerwarteten Zutaten

CHEMKON, EarlyView.
Der Umstieg auf erneuerbare Energien erfordert neue Speicherlösungen. Besonders im Fokus stehen dabei die Energiespeicherung aus regenerativen Energietechniken wie Solar‐ und Windkraft. Auch hinsichtlich der Speichertechnologie soll auf Nachhaltigkeit gesetzt werden, um eine sichere und umweltschonende Energiespeicherung zu ermöglichen.
Dominique Rosenberg, Tom Severin Gabriel
wiley   +1 more source

Synthesis of 2,5-Diaminoquinones by One-Pot Copper-Catalyzed Aerobic Oxidation of Hydroquinones and Addition Reaction of Amines

, 2009
The aerobic oxidation of various hydroquinones was achieved by using copper nanoparticles entrapped in aluminum oxyhydroxide [Cu/AlO(OH)] at room temperature.
Kim, D, Kim, S, Park, J, Jaiwook Park, Sungjin Kim, Daehwan Kim   +5 more
core   +1 more source

Niobium‐Based Chalcogenides as Emerging Electrode Materials for Rechargeable Batteries

EcoEnergy, EarlyView.
This review highlights recent advances in Nb‐based TMCs, covering their structure‐property relationships, synthesis strategies, electrochemical mechanisms, and energy‐storage applications. Emerging approaches including defect engineering, operando characterization, DFT modeling, and AI‐assisted design are discussed to accelerate the development of high‐
Narasimharao Kitchamsetti, Ana L. F. de Barros, Sungwook Mhin, HyukSu Han   +3 more
wiley   +1 more source

Structure‐Driven Thermal Insulation Through Single‐ and Double‐Shell Hollow Silica Nanospheres Via a Single‐Step Sacrificial‐Interlayer Strategy

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A single‐step sacrificial‐interlayer strategy enables precise modulation of inter‐shell spacing in hollow silica nanospheres, allowing direct comparison of thermal insulation characteristics between single‐ and double‐shell architectures. The hierarchical design amplifies phonon scattering and disrupts solid heat pathways, achieving an ultralow thermal
Jisoo Park, Jiheon Kim, Myounggi Hong, Junyeol Choi, Sohyung Jiong, Sooyeon Ji, Daewoo Suh, Jungsoo Lim, Jinhyun Park, Wonjoon Choi   +9 more
wiley   +1 more source

Quenching of Electrogenerated Chemiluminescence by Phenols, Hydroquinones, Catechols, and Benzoquinones

, 1999
Efficient quenching of Ru(bpy)32+ (bpy = 2,2‘-bipyridine) electrogenerated chemiluminescence has been observed in the presence of phenols, catechols, hydroquinones, and benzoquinones.
Alexander, C., McCall, J., Richter, M. M., M. M. Richter, C. Alexander, J. McCall   +5 more
core   +1 more source

Cold‐adapted Ligninolytic Nanozyme Unveiling New Horizons in Black Liquor Treatment Under Mild Condition

Exploration, EarlyView.
This work reports a cold‐adapted manganese‐based nanozyme with broad‐spectrum oxidase‐like activity, capable of efficiently degrading lignin and treating kraft black liquor at low temperatures without external oxidants, offering a sustainable and energy‐efficient strategy for industrial wastewater remediation. ABSTRACT Kraft black liquor, characterised
Qing Tian, Huile Liu, Yao Chen, Xiaohe Miao, Rong Yang, Yangjun Guo, Mato Knez, Xiyun Yan, Kelong Fan, Lianbing Zhang   +9 more
wiley   +1 more source

Plant‐Derived Extracts Disrupt Biofilm Formation and Quorum Sensing in Yersinia enterocolitica: Insights From GC‐MS and Molecular Docking

Food Chemistry International, EarlyView.
The graphical abstract represents how natural plant products that preferentially target the specific receptors of quorum sensing could be developed to combat biofilms linked to Yersinia enterocolitica using the potent abilities of protein–ligand complexes with high docking scores.
Rajendran Thomas, Songeeta Singha, Devarshi Bharadwaj, Abinash Kumar, Dolly Sharma, Sadhana Ojha, Hirakjyoti Das, Vivek Kumar Gupta   +7 more
wiley   +1 more source