Results 61 to 70 of about 46,706 (268)

Bioactive Lactones from the Mangrove-Derived Fungus Penicillium sp. TGM112

Marine Drugs, 2019
Three new lactones penicilactones A−C (1−3) were obtained from the mangrove-derived fungus Penicillium sp. TGM112. Their structures and absolute configurations were determined by detailed NMR, MS spectroscopic data, Mo2(OAc)4-induced ...
Meng Bai, Guo-Lei Huang, Rong-Qing Mei, Bin Wang, You-Ping Luo, Xu-Hua Nong, Guang-Ying Chen, Cai-Juan Zheng   +7 more
doaj   +1 more source

Thermo‐Responsive Tri‐State Photonic Crystals

Advanced Science, EarlyView.
Tri‐state photonic crystals combine thermochromic structural color, fluorescence, and afterglow via far‐field absorption tuning, bypassing the efficiency‐lifetime trade‐off of TS‐FRET. This enables dynamic, high‐capacity anti‐counterfeiting with tunable optical states.
Yuewei Zheng, Jinqing Chen, Wanqi Mo, Wei Hong   +3 more
wiley   +1 more source

Quorum sensing inhibitory compounds from extremophilic microorganisms isolated from a hypersaline cyanobacterial mat [PDF]

arXiv, 2013
In this study extremely halophilic and moderately thermophilic microorganisms from a hypersaline microbial mat were screened for their ability to produce antibacterial, antidiatom, antialgal and quorum sensing (QS) inhibitory compounds. Five bacterial strains belonging to the genera Marinobacter and Halomonas and one archaeal strain belonging to the ...
arxiv  

CO2‐DBU‐Triggered Photoredox‐Catalyzed Direct α‐C‐H Alkylation of Alcohols

Advanced Science, EarlyView.
An efficient photoinduced and metal‐free method is developed for direct α‐C–H monoalkylation of alcohols utilizing the CO2‐DBU system as the hydrogen bond acceptor (HBA) in the presence of H2O, allowing for selective functionalization of alcohols with a broad substrate scope.
Zeyu Zhang, Zongchang Han, Yuhao Shang, Han‐Shi Hu, Jun Li, Chanjuan Xi   +5 more
wiley   +1 more source

Shaping of a Reactive Manganese Catalyst Enables Access to Polyfunctionalized Cyclohexanes via Enantioselective C(sp3)─H Bond Oxidation of 1,3‐meso Diethers

Angewandte Chemie, EarlyView.
Structural shaping of a highly reactive chiral Mn‐oxo species translates into exceptionally enantioselective C─H oxidation catalyst of cyclohexyl 1,3‐meso diethers (up to >99% ee) leading to polyfunctionalized cyclohexanes. Abstract Chiral polyoxygenated cyclohexanes are valuable constituents of biologically relevant products.
Andrea Palone, Arnau Call, Aleria Garcia‐Roca, Josep M. Luis, Matthew S. Sigman, Massimo Bietti, Cristina Nevado, Miquel Costas   +7 more
wiley   +2 more sources

A Recent Progress on Upgrading of Furfural and Derivatives into Green Transport Fuels and Precursors via CC Coupling Reactions

Advanced Energy and Sustainability Research, EarlyView.
This review highlights recent advancements in converting lignocellulosic biomass to fuel precursors. It emphasizes the role of FUR and 2‐methylfuran in aldol condensation and hydroxyalkylation–alkylation reactions. The article discusses their efficiency, potential applications, and emerging technologies that promise cleaner and more sustainable energy ...
Errol D. Saluta, Mahlet N. Gebresillase, Jeong Gil Seo   +2 more
wiley   +1 more source

Hydrogel‐Based Smart Materials for Wound Healing and Sensing

Aggregate, EarlyView.
The graphical abstract illustrates the role of hydrogel‐based flexible materials in advancing biomedical applications, including wound healing, point‐of‐care diagnostics, smart patches, and wearable devices. Hydrogels are particularly promising in modern wound care due to their high‐water content, flexibility, and biocompatibility.
Thi Kim Ngan Duong, Thi Thuy Truong, Thi Nhat Linh Phan, Thi Xuan Nguyen, Vu Hoang Minh Doan, Truong Tien Vo, Jaeyeop Choi, Umapada Pal, Prodyut Dhar, Byeongil Lee, Junghwan Oh, Sudip Mondal   +11 more
wiley   +1 more source

Skin‐Covered Biohybrid Robotic Finger with Bilayered Permeable Subcutaneous Support for Internal Hydration Supplement

Advanced Intelligent Systems, EarlyView.
A bilayered permeable subcutaneous support system is developed to address the hydration challenge in skin‐covered biohybrid robots. Consisting of a perforated skeletal layer and a sponge‐like polyvinyl alcohol hydrogel, the system enables fluid flow, nutrient diffusion, and mechanical support.
Keisuke Ohta, Minghao Nie, Haruka Oda, Shoji Takeuchi   +3 more
wiley   +1 more source

Synthesis of a BINOL‐Derived Sulfide Catalyst Bearing a Diphenylmethanol Unit and Its Application in Asymmetric Bromolactonizations

Asian Journal of Organic Chemistry, EarlyView.
The excellent catalytic performance of a BINOL‐derived sulfide catalyst bearing a diphenylmethanol unit was demonstrated in the highly enantioselective synthesis of γ‐butyrolactones via bromolactonization. Abstract A BINOL‐derived sulfide catalyst bearing a diphenylmethanol unit was prepared.
Yasuaki Furuya, Ryuichi Nishiyori, Seiji Shirakawa   +2 more
wiley   +1 more source

7-epi-griffonilide, a new lactone from Bauhinia pentandra: complete 1H and 13C chemical shift assignments

Anais da Academia Brasileira de Ciências
A new lactone, 7-epi-griffonilide (1), and six known compounds, 2, 3a - 3c, 4a and 4b, were isolated from the leaves of Bauhinia pentandra (Fabaceae). The structures elucidation of 1 and 2 were based on detailed 2D NMR techniques and spectral comparison ...
MACIA C.S. DE ALMEIDA, LUCIANA G.S. SOUZA, DANIELE A. FERREIRA, FRANCISCO C.L. PINTO, DÉBORA R. DE OLIVEIRA, GILVANDETE M.P. SANTIAGO, FRANCISCO J.Q. MONTE, RAIMUNDO BRAZ-FILHO, TELMA L.G. DE LEMOS   +8 more
doaj   +1 more source