Results 111 to 120 of about 210,013 (270)

Acylated and alkylated benzo(crown-ethers) form ion-dependent ion channels in biological membranes. [PDF]

Biophys J, 2022
Carrasquel-Ursulaez W, Dehghany M, Jones CL, Idikuda V, Lu B, Schomaker JM, Chanda B.   +6 more
europepmc   +1 more source

Advances in Unconventional and Sustainable Synthetic Approaches to Benzopyran Scaffolds

The Chemical Record, EarlyView.
This review provides a comprehensive and critical analysis of low‐impact synthetic methodologies reported in the last 8 years (2018–2026) for the construction of benzopyran‐derived scaffolds, such as coumarins, flavones, chromones, chromenes, and chromanes. The benzopyran scaffold is a versatile family of heterocycles found in a wide range of bioactive
Nathalia B. Sá, Patrick C. Nobre, Isabelly O. Ferreira, Juliano B. Azeredo, Vanessa Nascimento   +4 more
wiley   +1 more source

Crown ether decorated silicon photonics for safeguarding against lead poisoning

Nature Communications
Lead (Pb2+) toxification is a concerning, unaddressed global public health crisis that leads to 1 million deaths annually. Yet, public policies to address this issue have fallen short.
Luigi Ranno, Yong Zen Tan, Chi Siang Ong, Xin Guo, Khong Nee Koo, Xiang Li, Wanjun Wang, Samuel Serna, Chongyang Liu, Rusli, Callum G. Littlejohns, Graham T. Reed, Juejun Hu, Hong Wang, Jia Xu Brian Sia   +14 more
doaj   +1 more source

A New Perspective on Adsorbent Materials Based Impregnated MgSiO₃ with Crown Ethers for Palladium Recovery. [PDF]

Int J Mol Sci, 2021
Ciopec M, Grad O, Negrea A, Duteanu N, Negrea P, Paul C, Ianăși C, Mosoarca G, Vancea C.   +8 more
europepmc   +1 more source

Synthesis of Crown Ethers Based on a Spiroacetal Framework

, 1998
A novel class of crown ether derivatives incorporating a 1,7-dioxaspiro[5.5]undecane ring system have been prepared via alkylation of 3,5-diaxial diol 4 with polyethylene glycol ditosylates [di(toluene-p-sulfonates)].
Johnston, Andrew, Brimble, Margaret
core   +1 more source

Understanding the Dynamics of Mechanically Interlocked Molecular Systems via Metadynamics Simulations

The Chemical Record, EarlyView.
This Personal Account discusses how molecular simulations help uncover motion, shuttling mechanisms, and kinetics in mechanically interlocked molecules such as rotaxanes and catenanes. Mechanically interlocked molecules, such as rotaxanes and catenanes, display complex internal dynamics and reciprocal motions that are central to their use as artificial
Clara Sabrià, Luigi Leanza, Massimo Delle Piane, Max von Delius, Ferran Feixas, Xavi Ribas, Giovanni M. Pavan   +6 more
wiley   +1 more source

Syphilis and ‘Sons of Empire’: The ‘Prostitute’ and Britain's Fighting Arm in Nineteenth ̵ Century Colonial Punjab

Gender &History, EarlyView.
ABSTRACT The British army in India took great care to provide European troops with facilities for sexual relations while anxiously managing venereal disease. Examining archival evidence, political debates and medical discourse from the nineteenth century, this article examines the colonial military enterprise of regulated prostitution in colonial ...
Sameera Chauhan
wiley   +1 more source

Synthesis and Reactivity of Oligo(ethylene glycol)-Tethered Morita–Baylis–Hillman Dimers in the Formation of Macrocyclic Structures Showing Remarkable Cytotoxicity

Pharmaceuticals
Background/Objectives: Crown ethers have received increasing interest owing to their ability to form stable complexes with cations. This molecular feature has been successfully exploited in the development of biologically relevant ionophores. Methods: In
Marco Paolino, Mario Saletti, Jacopo Venditti, Arianna Zacchei, Alessandro Donati, Claudia Bonechi, Germano Giuliani, Stefania Lamponi, Andrea Cappelli   +8 more
doaj   +1 more source

Liquid Chromatographic Enantioseparations Utilizing Chiral Stationary Phases Based on Crown Ethers and Cyclofructans. [PDF]

Molecules, 2021
Berkecz R, Németi G, Péter A, Ilisz I.
europepmc   +1 more source

‘Enthusiasts’ and ‘Fanatics’: The Decembrists as a Case Study in French Influence on Russian Culture, Emotions and Thought

History, EarlyView.
Abstract Participants in Russia's 1825 Decembrist uprising against the Tsarist regime were, quite literally, a case study in French cultural influence upon Russia. This is particularly true as it relates to Russia's emotional cultures. Although this has not, traditionally, been the primary focus of historical analysis of this event (in Soviet or ...
ADAM COKER
wiley   +1 more source