Results 71 to 80 of about 73,428 (238)

Crystal structure of 7-hydroxy-8-[(4-methylpiperazin-1-yl)methyl]-2H-chromen-2-one

Acta Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C15H18N2O3, the coumarin ring is essentially planar, with an r.m.s. deviation of 0.012 Å. An intramolecular O—H...N hydrogen bond forms an S(6) ring motif. The piperazine ring adopts a chair conformation.
Koji Kubono, Ryuma Kise, Yukiyasu Kashiwagi, Keita Tani, Kunihiko Yokoi   +4 more
doaj   +1 more source

Crystal-structure studies of 4-phenylpiperazin-1-ium 4-ethoxybenzoate monohydrate, 4-phenylpiperazin-1-ium 4-methoxybenzoate monohydrate, 4-phenylpiperazin-1-ium 4-methylbenzoate monohydrate and 4-phenylpiperazin-1-ium trifluoroacetate 0.12-hydrate

Acta Crystallographica Section E: Crystallographic Communications, 2022
In this study, four new piperazinium salts, namely, 4-phenylpiperazin-1-ium 4-ethoxybenzoate monohydrate, C9H9O3·C10H15N2·H2O (I); 4-phenylpiperazin-1-ium 4-methoxybenzoate monohydrate, C10H15N2·C8H7O3·H2O (II); 4-phenylpiperazin-1-ium 4-methylbenzoate ...
Ninganayaka Mahesha, Haruvegowda Kiran Kumar, Mehmet Akkurt, Hemmige S. Yathirajan, Sabine Foro, Mohammed S. M. Abdelbaky, Santiago Garcia-Granda   +6 more
doaj   +1 more source

Erasable FAP Targeted Spray‐On Probe for Fluorescence‐Guided Surgery

Advanced Science, EarlyView.
We present the first erasable spray‐on probe for fluorescence‐guided surgery. Following topical delivery, FAP‐FLASH550 targets fibroblast activation protein–expressing stromal cells, delineating tumor margins with high tumor‐to‐background ratios. A 365 nm UV light pulse rapidly erases fluorescent signals through triazene photodegradation and subsequent
Zachary Rabinowitz, Riley J. Deutsch‐Williams, Ralph Weissleder   +2 more
wiley   +1 more source

Use of the R-group descriptor for alignment-free QSAR [PDF]

, 2005
An R-group descriptor characterises the distribution of some atom-based property, such as elemental type or partial atomic charge, at increasing numbers of bonds distant from the point of substitution on a parent ring system. Application of Partial Least
Gedeck, P., Hirons, L., Holliday, J.D., Jelfs, S.P., Willett, P.   +4 more
core   +1 more source

Sugar‐Armored Pesticides: Self‐Assembled System for Enhanced Foliar Adhesion and Sustained Delivery of Hydrophobic Antimicrobials Against Bacterial Diseases

Advanced Science, EarlyView.
This study develops a sugar‐armored, self‐assembled pesticide delivery system that enhances foliar adhesion, provides sustained release, effectively disrupts biofilms, and demonstrates superior bactericidal activity for improved disease control.
Jinghan Yang, Juan Liu, Xiaohui Wang, Peiyi Wang   +3 more
wiley   +1 more source

Process intensification for post combustion CO₂ capture with chemical absorption: a critical review [PDF]

, 2015
The concentration of CO₂ in the atmosphere is increasing rapidly. CO₂ emissions may have an impact on global climate change. Effective CO₂ emission abatement strategies such as carbon capture and storage (CCS) are required to combat this trend.
Abanades, Abu-Zahra, Agarwal, Agbonghae, Agbonghae, Agbonghae, Albo, Aronu, Asendrych, Atuman S. Joel, Barham, Benson, Bernardo, Biliyok, Bishnoi, Boodhoo, Bounaceur, Brechtelsbauer, Brunetti, Burns, Buzek, Car, Chambers, Chen, Chen, Chen, Chen, Chen, Chen, Cheng, Cheng, Cheng, Cheng, Cheng, Cheung, Clausse, Colin Ramshaw, Cramers, Dag Eimer, Dasgupta, Dasgupta, Dobie, Drage, Dugas, Durán-Guevara, Errey, Favre, Field, Freeman, Freund, Gibbins, Gil, González, González, Goto, Han, Haszeldine, Hedin, Herzog, Herzog, Hesselgreaves, Hlaing, Huang, Jassim, Joel, Joel, Kapica-Kozar, Kim, Kishimoto, Kolev, Kothandaraman, Krishna, Kvamsdal, Kvamsdal, Kvamsdal, Kvamsdal, Lawal, Lawal, Lawal, Lawal, Li, Li, Lin, Lin, Lin, Lin, Lin, Lucquiaud, Lucquiaud, Luo, Luo, Luo, Mac Dowell, Mac Dowell, Mac Dowell, MacDowell, Machado, Mangalapally, Mangalapally, Mangalapally, Mangalapally, Maring, Mason, Meeuwse, Meeuwse, Meeuwse, Meihong Wang, Mimura, Mimura, Munjal, Nikitin, Nuhu M. Musa, Oexmann, Onda, Parshetti, Picon-Nunez, Plaza, Rajan, Raynal, Raynal, Reay, Resnik, Riffat, Riffat, Roberge, Roberge, Samanta, Sander, Sebastia-Saez, Semkov, Shah, Shakerian, Shaw, Shehata, Shi, Sternling, Stéphenne, Stöver, Tan, Tobiesen, Tsuzuki, Tung, Wang, Wang, Wang, Wang, Wappel, Wei, Xu, Yang, Yi, Yu, Yu, Yu, Yu, Zhang, Zhang, Zhang, Zhao, Zhao, Zhao, Zhao   +161 more
core   +1 more source

Dual Effect of Steric Hindrance in Non‐Aqueous Amine Absorbents: Navigating the Trade‐Off Between Kinetics and Thermodynamics for Efficient CO2 Capture

Advanced Science, EarlyView.
This study elucidates how steric hindrance in amines creates a dual effect in CO2 capture: it thermodynamically favors the reaction by shifting the pathway from carbamate to alkyl carbonate formation, increasing capacity and lowering regeneration heat, while simultaneously slightly slowing the kinetics.
Xiaoyi Gao, Bin Xu, Xi Tang, Muyi Li, Cong Luo, Fan Wu, Xiaoshan Li, Liqi Zhang, Wen Chen   +8 more
wiley   +1 more source

Piperazine skeleton in the structural modification of natural products: a review

Journal of Enzyme Inhibition and Medicinal Chemistry, 2021
Piperazine moiety is a cyclic molecule containing two nitrogen atoms in positions 1 and 4, as well as four carbon atoms. Piperazine is one of the most sought heterocyclics for the development of new drug candidates with a wide range of applications. Over
Run-Hui Zhang, Hong-Yan Guo, Hao Deng, Jinzi Li, Zhe-Shan Quan   +4 more
doaj   +1 more source

Actions of Agonists, Fipronil and Ivermectin on the Predominant In Vivo Splice and Edit Variant (RDLbd, I/V) of the Drosophila GABA Receptor Expressed in Xenopus laevis Oocytes [PDF]

, 2014
Ionotropic GABA receptors are the targets for several classes of insecticides. One of the most widely-studied insect GABA receptors is RDL (resistance to dieldrin), originally isolated from Drosophila melanogaster.
Biggin, P, Buckingham, SD, Lees, K, Musgaard, M, Sattelle, D, Suwanmanee, S   +5 more
core   +3 more sources

Reconstructed Polyamide Nanolayers via Two‐Stage Interfacial Polymerization Engineering for Precise Ion Sieving

Advanced Science, EarlyView.
A reconstructed polyamide nanofiltration membrane is engineered via a two‐stage interfacial polymerization strategy for lithium extraction from complex brines. Incorporated bidentate quaternary ammonium monomers enable synergistic steric and electrostatic effects within sub‐nanometer channels, achieving 60‐fold lithium enrichment and demonstrating ...
Shuzhen Zhao, Liheng Dai, Feidong Yang, Bowen Li, Pengfei Zhang, Yanyan Liu, Mengyang Hu, Kecheng Guan, Ryosuke Takagi, Hideto Matsuyama   +9 more
wiley   +1 more source